/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.camera; import com.android.camera.gallery.IImage; import com.android.camera.gallery.IImageList; import com.android.camera.ui.CameraHeadUpDisplay; import com.android.camera.ui.CameraPicker; import com.android.camera.ui.ControlPanel; import com.android.camera.ui.FocusRectangle; import com.android.camera.ui.GLRootView; import com.android.camera.ui.HeadUpDisplay; import com.android.camera.ui.ZoomControllerListener; import com.android.camera.ui.ZoomPicker; import android.app.Activity; import android.content.ActivityNotFoundException; import android.content.BroadcastReceiver; import android.content.ContentProviderClient; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences.Editor; import android.content.res.Configuration; import android.content.res.Resources; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.hardware.Camera.CameraInfo; import android.hardware.Camera.Parameters; import android.hardware.Camera.PictureCallback; import android.hardware.Camera.Size; import android.location.Location; import android.location.LocationManager; import android.location.LocationProvider; import android.media.AudioManager; import android.media.ToneGenerator; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Looper; import android.os.Message; import android.os.MessageQueue; import android.provider.MediaStore; import android.provider.Settings; import android.provider.MediaStore.Images.ImageColumns; import android.provider.MediaStore.Images.Media; import android.util.Log; import android.view.GestureDetector; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.OrientationEventListener; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.ViewGroup; import android.view.ViewStub; import android.view.Window; import android.view.WindowManager; import android.view.MenuItem.OnMenuItemClickListener; import android.widget.Button; import android.widget.Toast; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Collections; import java.util.Date; import java.util.HashMap; import java.util.List; /** The Camera activity which can preview and take pictures. */ public class Camera extends NoSearchActivity implements View.OnClickListener, ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, Switcher.OnSwitchListener { private static final String TAG = "camera"; private static final int CROP_MSG = 1; private static final int FIRST_TIME_INIT = 2; private static final int RESTART_PREVIEW = 3; private static final int CLEAR_SCREEN_DELAY = 4; private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; // The subset of parameters we need to update in setCameraParameters(). private static final int UPDATE_PARAM_INITIALIZE = 1; private static final int UPDATE_PARAM_ZOOM = 2; private static final int UPDATE_PARAM_PREFERENCE = 4; private static final int UPDATE_PARAM_ALL = -1; // When setCameraParametersWhenIdle() is called, we accumulate the subsets // needed to be updated in mUpdateSet. private int mUpdateSet; // The brightness settings used when it is set to automatic in the system. // The reason why it is set to 0.7 is just because 1.0 is too bright. private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; private static final int SCREEN_DELAY = 2 * 60 * 1000; private static final int FOCUS_BEEP_VOLUME = 100; private static final int ZOOM_STOPPED = 0; private static final int ZOOM_START = 1; private static final int ZOOM_STOPPING = 2; private int mZoomState = ZOOM_STOPPED; private boolean mSmoothZoomSupported = false; private int mZoomValue; // The current zoom value. private int mZoomMax; private int mTargetZoomValue; private ZoomPicker mZoomPicker; private Parameters mParameters; private Parameters mInitialParams; private MyOrientationEventListener mOrientationListener; // The device orientation in degrees. Default is unknown. private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; // The orientation compensation for icons and thumbnails. private int mOrientationCompensation = 0; private ComboPreferences mPreferences; private static final int IDLE = 1; private static final int SNAPSHOT_IN_PROGRESS = 2; private static final boolean SWITCH_CAMERA = true; private static final boolean SWITCH_VIDEO = false; private int mStatus = IDLE; private static final String sTempCropFilename = "crop-temp"; private android.hardware.Camera mCameraDevice; private ContentProviderClient mMediaProviderClient; private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder = null; private ShutterButton mShutterButton; private FocusRectangle mFocusRectangle; private ToneGenerator mFocusToneGenerator; private GestureDetector mPopupGestureDetector; private SwitcherSet mSwitcher; private boolean mStartPreviewFail = false; private View mIndicatorWheel; private GLRootView mGLRootView; // The last captured picture. private RotateImageView mThumbnailButton; // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. private String mCropValue; private Uri mSaveUri; private ImageCapture mImageCapture = null; // GPS on-screen indicator private View mGpsNoSignalView; private View mGpsHasSignalView; // Front/Back camera pciker for xlarge layout private CameraPicker mCameraPicker; /** * An unpublished intent flag requesting to return as soon as capturing * is completed. * * TODO: consider publishing by moving into MediaStore. */ private final static String EXTRA_QUICK_CAPTURE = "android.intent.extra.quickCapture"; private boolean mPreviewing; private boolean mPausing; private boolean mFirstTimeInitialized; private boolean mIsImageCaptureIntent; private boolean mRecordLocation; private static final int FOCUS_NOT_STARTED = 0; private static final int FOCUSING = 1; private static final int FOCUSING_SNAP_ON_FINISH = 2; private static final int FOCUS_SUCCESS = 3; private static final int FOCUS_FAIL = 4; private int mFocusState = FOCUS_NOT_STARTED; private ContentResolver mContentResolver; private boolean mDidRegister = false; private final ArrayList mGalleryItems = new ArrayList(); private LocationManager mLocationManager = null; private final ShutterCallback mShutterCallback = new ShutterCallback(); private final PostViewPictureCallback mPostViewPictureCallback = new PostViewPictureCallback(); private final RawPictureCallback mRawPictureCallback = new RawPictureCallback(); private final AutoFocusCallback mAutoFocusCallback = new AutoFocusCallback(); private final ZoomListener mZoomListener = new ZoomListener(); private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); private long mFocusStartTime; private long mFocusCallbackTime; private long mCaptureStartTime; private long mShutterCallbackTime; private long mPostViewPictureCallbackTime; private long mRawPictureCallbackTime; private long mJpegPictureCallbackTime; private int mPicturesRemaining; // These latency time are for the CameraLatency test. public long mAutoFocusTime; public long mShutterLag; public long mShutterToPictureDisplayedTime; public long mPictureDisplayedToJpegCallbackTime; public long mJpegCallbackFinishTime; // Focus mode. Options are pref_camera_focusmode_entryvalues. private String mFocusMode; private String mSceneMode; private Toast mNotSelectableToast; private final Handler mHandler = new MainHandler(); // xlarge devices use control panel. Other devices use head-up display. private CameraHeadUpDisplay mHeadUpDisplay; private ControlPanel mControlPanel; private PreferenceGroup mPreferenceGroup; // multiple cameras support private int mNumberOfCameras; private int mCameraId; private int mFrontCameraId; private int mBackCameraId; private boolean mQuickCapture; /** * This Handler is used to post message back onto the main thread of the * application */ private class MainHandler extends Handler { @Override public void handleMessage(Message msg) { switch (msg.what) { case RESTART_PREVIEW: { restartPreview(); if (mJpegPictureCallbackTime != 0) { long now = System.currentTimeMillis(); mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; Log.v(TAG, "mJpegCallbackFinishTime = " + mJpegCallbackFinishTime + "ms"); mJpegPictureCallbackTime = 0; } break; } case CLEAR_SCREEN_DELAY: { getWindow().clearFlags( WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); break; } case FIRST_TIME_INIT: { initializeFirstTime(); break; } case SET_CAMERA_PARAMETERS_WHEN_IDLE: { setCameraParametersWhenIdle(0); break; } } } } private void resetExposureCompensation() { String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, CameraSettings.EXPOSURE_DEFAULT_VALUE); if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { Editor editor = mPreferences.edit(); editor.putString(CameraSettings.KEY_EXPOSURE, "0"); editor.apply(); if (mHeadUpDisplay != null) { mHeadUpDisplay.reloadPreferences(); } } } private void keepMediaProviderInstance() { // We want to keep a reference to MediaProvider in camera's lifecycle. // TODO: Utilize mMediaProviderClient instance to replace // ContentResolver calls. if (mMediaProviderClient == null) { mMediaProviderClient = getContentResolver() .acquireContentProviderClient(MediaStore.AUTHORITY); } } // Snapshots can only be taken after this is called. It should be called // once only. We could have done these things in onCreate() but we want to // make preview screen appear as soon as possible. private void initializeFirstTime() { if (mFirstTimeInitialized) return; // Create orientation listenter. This should be done first because it // takes some time to get first orientation. mOrientationListener = new MyOrientationEventListener(Camera.this); mOrientationListener.enable(); // Initialize location sevice. mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); mRecordLocation = RecordLocationPreference.get( mPreferences, getContentResolver()); initGpsOnScreenIndicator(); if (mRecordLocation) startReceivingLocationUpdates(); keepMediaProviderInstance(); checkStorage(); // Initialize last picture button. mContentResolver = getContentResolver(); if (!mIsImageCaptureIntent) { findViewById(R.id.camera_switch).setOnClickListener(this); initThumbnailButton(); } // Initialize shutter button. mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); mShutterButton.setOnShutterButtonListener(this); mShutterButton.setVisibility(View.VISIBLE); mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); updateFocusIndicator(); initializeScreenBrightness(); installIntentFilter(); initializeFocusTone(); initializeZoom(); // xlarge devices use control panel. Other devices use head-up display. if (mControlPanel == null) { mHeadUpDisplay = new CameraHeadUpDisplay(this); mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); initializeHeadUpDisplay(); } mFirstTimeInitialized = true; changeHeadUpDisplayState(); addIdleHandler(); } private void addIdleHandler() { MessageQueue queue = Looper.myQueue(); queue.addIdleHandler(new MessageQueue.IdleHandler() { public boolean queueIdle() { ImageManager.ensureOSXCompatibleFolder(); return false; } }); } private void initThumbnailButton() { mThumbnailButton = (RotateImageView) findViewById(R.id.review_thumbnail); if (mThumbnailButton != null) { mThumbnailButton.setOnClickListener(this); mThumbnailButton.loadData(ImageManager.getLastImageThumbPath()); updateThumbnailButton(); } } private void updateThumbnailButton() { if (mThumbnailButton == null) return; // Update last image if URI is invalid and the storage is ready. if (!mThumbnailButton.isUriValid() && mPicturesRemaining >= 0) { IImageList list = ImageManager.makeImageList( mContentResolver, dataLocation(), ImageManager.INCLUDE_IMAGES, ImageManager.SORT_ASCENDING, ImageManager.CAMERA_IMAGE_BUCKET_ID); int count = list.getCount(); if (count > 0) { IImage image = list.getImageAt(count - 1); Uri uri = image.fullSizeImageUri(); mThumbnailButton.setData(uri, image.miniThumbBitmap()); } else { mThumbnailButton.setData(null, null); } list.close(); } mThumbnailButton.setVisibility( (mThumbnailButton.getUri() != null) ? View.VISIBLE : View.GONE); } private void setLastPictureThumb(byte[] data, int degree, Uri uri) { if (mThumbnailButton == null) return; BitmapFactory.Options options = new BitmapFactory.Options(); options.inSampleSize = 16; Bitmap lastPictureThumb = BitmapFactory.decodeByteArray(data, 0, data.length, options); lastPictureThumb = Util.rotate(lastPictureThumb, degree); mThumbnailButton.setData(uri, lastPictureThumb); if (lastPictureThumb != null) { mThumbnailButton.setVisibility(View.VISIBLE); } } // If the activity is paused and resumed, this method will be called in // onResume. private void initializeSecondTime() { // Start orientation listener as soon as possible because it takes // some time to get first orientation. mOrientationListener.enable(); // Start location update if needed. mRecordLocation = RecordLocationPreference.get( mPreferences, getContentResolver()); if (mRecordLocation) startReceivingLocationUpdates(); installIntentFilter(); initializeFocusTone(); initializeZoom(); changeHeadUpDisplayState(); keepMediaProviderInstance(); checkStorage(); if (!mIsImageCaptureIntent) { updateThumbnailButton(); } } private void initializeZoom() { if (!mParameters.isZoomSupported()) return; mZoomMax = mParameters.getMaxZoom(); mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); if (mZoomPicker != null) { mZoomPicker.setZoomRatios(getZoomRatios()); mZoomPicker.setZoomIndex(mParameters.getZoom()); mZoomPicker.setOnZoomChangeListener( new ZoomPicker.OnZoomChangedListener() { public void onZoomChanged(int index) { onZoomValueChanged(index); } }); } mCameraDevice.setZoomChangeListener(mZoomListener); } private void onZoomValueChanged(int index) { // Not useful to change zoom value when the activity is paused. if (mPausing) return; if (mSmoothZoomSupported) { if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { mTargetZoomValue = index; if (mZoomState == ZOOM_START) { mZoomState = ZOOM_STOPPING; mCameraDevice.stopSmoothZoom(); } } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { mTargetZoomValue = index; mCameraDevice.startSmoothZoom(index); mZoomState = ZOOM_START; } } else { mZoomValue = index; setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); } } private float[] getZoomRatios() { if(!mParameters.isZoomSupported()) return null; List zoomRatios = mParameters.getZoomRatios(); float result[] = new float[zoomRatios.size()]; for (int i = 0, n = result.length; i < n; ++i) { result[i] = (float) zoomRatios.get(i) / 100f; } return result; } private int mPopupLocations[] = new int[2]; private class PopupGestureListener extends GestureDetector.SimpleOnGestureListener { public boolean onDown(MotionEvent e) { // Check if the popup window is visible. View v = mControlPanel.getActivePopupWindow(); if (v == null) return false; int x = Math.round(e.getX()); int y = Math.round(e.getY()); // Dismiss the popup window if users touch on the outside. v.getLocationOnScreen(mPopupLocations); if (x < mPopupLocations[0] || x > mPopupLocations[0] + v.getWidth() || y < mPopupLocations[1] || y > mPopupLocations[1] + v.getHeight()) { mControlPanel.dismissSettingPopup(); // Let event fall through. } return false; } } @Override public boolean dispatchTouchEvent(MotionEvent m) { // Check if the popup window should be dismissed first. if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { return true; } return super.dispatchTouchEvent(m); } LocationListener [] mLocationListeners = new LocationListener[] { new LocationListener(LocationManager.GPS_PROVIDER), new LocationListener(LocationManager.NETWORK_PROVIDER) }; private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (action.equals(Intent.ACTION_MEDIA_MOUNTED) || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || action.equals(Intent.ACTION_MEDIA_CHECKING)) { checkStorage(); } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { checkStorage(); if (!mIsImageCaptureIntent) { updateThumbnailButton(); } } } }; private void initializeCameraPicker() { mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); if (mCameraPicker != null) { mCameraPicker.setImageResource(R.drawable.camera_toggle); ListPreference pref = mPreferenceGroup.findPreference( CameraSettings.KEY_CAMERA_ID); if (pref != null) { mCameraPicker.initialize(pref); mCameraPicker.setListener(new MyCameraPickerListener()); } } } private void initGpsOnScreenIndicator() { mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); } private void showGpsOnScreenIndicator(boolean hasSignal) { if (hasSignal) { if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); } else { if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); } } private void hideGpsOnScreenIndicator() { if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); } private class LocationListener implements android.location.LocationListener { Location mLastLocation; boolean mValid = false; String mProvider; public LocationListener(String provider) { mProvider = provider; mLastLocation = new Location(mProvider); } public void onLocationChanged(Location newLocation) { if (newLocation.getLatitude() == 0.0 && newLocation.getLongitude() == 0.0) { // Hack to filter out 0.0,0.0 locations return; } // If GPS is available before start camera, we won't get status // update so update GPS indicator when we receive data. if (mRecordLocation && LocationManager.GPS_PROVIDER.equals(mProvider)) { if (mHeadUpDisplay != null) { mHeadUpDisplay.setGpsHasSignal(true); } showGpsOnScreenIndicator(true); } if (!mValid) { Log.d(TAG, "Got first location."); } mLastLocation.set(newLocation); mValid = true; } public void onProviderEnabled(String provider) { } public void onProviderDisabled(String provider) { mValid = false; } public void onStatusChanged( String provider, int status, Bundle extras) { switch(status) { case LocationProvider.OUT_OF_SERVICE: case LocationProvider.TEMPORARILY_UNAVAILABLE: { mValid = false; if (mRecordLocation && LocationManager.GPS_PROVIDER.equals(provider)) { if (mHeadUpDisplay != null) { mHeadUpDisplay.setGpsHasSignal(false); } showGpsOnScreenIndicator(false); } break; } } } public Location current() { return mValid ? mLastLocation : null; } } private final class ShutterCallback implements android.hardware.Camera.ShutterCallback { public void onShutter() { mShutterCallbackTime = System.currentTimeMillis(); mShutterLag = mShutterCallbackTime - mCaptureStartTime; Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); clearFocusState(); } } private final class PostViewPictureCallback implements PictureCallback { public void onPictureTaken( byte [] data, android.hardware.Camera camera) { mPostViewPictureCallbackTime = System.currentTimeMillis(); Log.v(TAG, "mShutterToPostViewCallbackTime = " + (mPostViewPictureCallbackTime - mShutterCallbackTime) + "ms"); } } private final class RawPictureCallback implements PictureCallback { public void onPictureTaken( byte [] rawData, android.hardware.Camera camera) { mRawPictureCallbackTime = System.currentTimeMillis(); Log.v(TAG, "mShutterToRawCallbackTime = " + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); } } private final class JpegPictureCallback implements PictureCallback { Location mLocation; public JpegPictureCallback(Location loc) { mLocation = loc; } public void onPictureTaken( final byte [] jpegData, final android.hardware.Camera camera) { if (mPausing) { return; } mJpegPictureCallbackTime = System.currentTimeMillis(); // If postview callback has arrived, the captured image is displayed // in postview callback. If not, the captured image is displayed in // raw picture callback. if (mPostViewPictureCallbackTime != 0) { mShutterToPictureDisplayedTime = mPostViewPictureCallbackTime - mShutterCallbackTime; mPictureDisplayedToJpegCallbackTime = mJpegPictureCallbackTime - mPostViewPictureCallbackTime; } else { mShutterToPictureDisplayedTime = mRawPictureCallbackTime - mShutterCallbackTime; mPictureDisplayedToJpegCallbackTime = mJpegPictureCallbackTime - mRawPictureCallbackTime; } Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " + mPictureDisplayedToJpegCallbackTime + "ms"); if (!mIsImageCaptureIntent) { enableCameraControls(true); // We want to show the taken picture for a while, so we wait // for at least 1.2 second before restarting the preview. long delay = 1200 - mPictureDisplayedToJpegCallbackTime; if (delay < 0) { restartPreview(); } else { mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); } } mImageCapture.storeImage(jpegData, camera, mLocation); // Calculate this in advance of each shot so we don't add to shutter // latency. It's true that someone else could write to the SD card in // the mean time and fill it, but that could have happened between the // shutter press and saving the JPEG too. calculatePicturesRemaining(); if (mPicturesRemaining < 1) { updateStorageHint(mPicturesRemaining); } if (!mHandler.hasMessages(RESTART_PREVIEW)) { long now = System.currentTimeMillis(); mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; Log.v(TAG, "mJpegCallbackFinishTime = " + mJpegCallbackFinishTime + "ms"); mJpegPictureCallbackTime = 0; } } } private final class AutoFocusCallback implements android.hardware.Camera.AutoFocusCallback { public void onAutoFocus( boolean focused, android.hardware.Camera camera) { mFocusCallbackTime = System.currentTimeMillis(); mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); if (mFocusState == FOCUSING_SNAP_ON_FINISH) { // Take the picture no matter focus succeeds or fails. No need // to play the AF sound if we're about to play the shutter // sound. if (focused) { mFocusState = FOCUS_SUCCESS; } else { mFocusState = FOCUS_FAIL; } mImageCapture.onSnap(); } else if (mFocusState == FOCUSING) { // User is half-pressing the focus key. Play the focus tone. // Do not take the picture now. ToneGenerator tg = mFocusToneGenerator; if (tg != null) { tg.startTone(ToneGenerator.TONE_PROP_BEEP2); } if (focused) { mFocusState = FOCUS_SUCCESS; } else { mFocusState = FOCUS_FAIL; } } else if (mFocusState == FOCUS_NOT_STARTED) { // User has released the focus key before focus completes. // Do nothing. } updateFocusIndicator(); } } private final class ZoomListener implements android.hardware.Camera.OnZoomChangeListener { public void onZoomChange( int value, boolean stopped, android.hardware.Camera camera) { Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); mZoomValue = value; // Keep mParameters up to date. We do not getParameter again in // takePicture. If we do not do this, wrong zoom value will be set. mParameters.setZoom(value); // We only care if the zoom is stopped. mZooming is set to true when // we start smooth zoom. if (stopped && mZoomState != ZOOM_STOPPED) { if (value != mTargetZoomValue) { mCameraDevice.startSmoothZoom(mTargetZoomValue); mZoomState = ZOOM_START; } else { mZoomState = ZOOM_STOPPED; } } } } private class ImageCapture { private Uri mLastContentUri; byte[] mCaptureOnlyData; // Returns the rotation degree in the jpeg header. private int storeImage(byte[] data, Location loc) { try { long dateTaken = System.currentTimeMillis(); String title = createName(dateTaken); String filename = title + ".jpg"; int[] degree = new int[1]; mLastContentUri = ImageManager.addImage( mContentResolver, title, dateTaken, loc, // location from gps/network ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, null, data, degree); return degree[0]; } catch (Exception ex) { Log.e(TAG, "Exception while compressing image.", ex); return 0; } } public void storeImage(final byte[] data, android.hardware.Camera camera, Location loc) { if (!mIsImageCaptureIntent) { int degree = storeImage(data, loc); sendBroadcast(new Intent( "com.android.camera.NEW_PICTURE", mLastContentUri)); setLastPictureThumb(data, degree, mImageCapture.getLastCaptureUri()); } else { mCaptureOnlyData = data; if (!mQuickCapture) { showPostCaptureAlert(); } else { doAttach(); } } } /** * Initiate the capture of an image. */ public void initiate() { if (mCameraDevice == null) { return; } capture(); } public Uri getLastCaptureUri() { return mLastContentUri; } public byte[] getLastCaptureData() { return mCaptureOnlyData; } private void capture() { mCaptureOnlyData = null; // See android.hardware.Camera.Parameters.setRotation for // documentation. int rotation = 0; if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { rotation = (info.orientation - mOrientation + 360) % 360; } else { // back-facing camera rotation = (info.orientation + mOrientation) % 360; } } mParameters.setRotation(rotation); // Clear previous GPS location from the parameters. mParameters.removeGpsData(); // We always encode GpsTimeStamp mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); // Set GPS location. Location loc = mRecordLocation ? getCurrentLocation() : null; if (loc != null) { double lat = loc.getLatitude(); double lon = loc.getLongitude(); boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); if (hasLatLon) { Log.d(TAG, "Set gps location"); mParameters.setGpsLatitude(lat); mParameters.setGpsLongitude(lon); mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); if (loc.hasAltitude()) { mParameters.setGpsAltitude(loc.getAltitude()); } else { // for NETWORK_PROVIDER location provider, we may have // no altitude information, but the driver needs it, so // we fake one. mParameters.setGpsAltitude(0); } if (loc.getTime() != 0) { // Location.getTime() is UTC in milliseconds. // gps-timestamp is UTC in seconds. long utcTimeSeconds = loc.getTime() / 1000; mParameters.setGpsTimestamp(utcTimeSeconds); } } else { loc = null; } } mCameraDevice.setParameters(mParameters); mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, mPostViewPictureCallback, new JpegPictureCallback(loc)); mPreviewing = false; } public void onSnap() { // If we are already in the middle of taking a snapshot then ignore. if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { return; } mCaptureStartTime = System.currentTimeMillis(); mPostViewPictureCallbackTime = 0; enableCameraControls(false); mStatus = SNAPSHOT_IN_PROGRESS; mImageCapture.initiate(); } private void clearLastData() { mCaptureOnlyData = null; } } private boolean saveDataToFile(String filePath, byte[] data) { FileOutputStream f = null; try { f = new FileOutputStream(filePath); f.write(data); } catch (IOException e) { return false; } finally { Util.closeSilently(f); } return true; } private String createName(long dateTaken) { Date date = new Date(dateTaken); SimpleDateFormat dateFormat = new SimpleDateFormat( getString(R.string.image_file_name_format)); return dateFormat.format(date); } @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); mIsImageCaptureIntent = isImageCaptureIntent(); if (mIsImageCaptureIntent) { setContentView(R.layout.camera_attach); } else { setContentView(R.layout.camera); } mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); mPreferences = new ComboPreferences(this); CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); mCameraId = CameraSettings.readPreferredCameraId(mPreferences); mPreferences.setLocalId(this, mCameraId); CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); // we need to reset exposure for the preview resetExposureCompensation(); /* * To reduce startup time, we start the preview in another thread. * We make sure the preview is started at the end of onCreate. */ Thread startPreviewThread = new Thread(new Runnable() { public void run() { try { mStartPreviewFail = false; startPreview(); } catch (CameraHardwareException e) { // In eng build, we throw the exception so that test tool // can detect it and report it if ("eng".equals(Build.TYPE)) { throw new RuntimeException(e); } mStartPreviewFail = true; } } }); startPreviewThread.start(); // don't set mSurfaceHolder here. We have it set ONLY within // surfaceChanged / surfaceDestroyed, other parts of the code // assume that when it is set, the surface is also set. SurfaceHolder holder = mSurfaceView.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); if (mIsImageCaptureIntent) { setupCaptureParams(); View reviewControl = findViewById(R.id.review_control); reviewControl.setVisibility(View.VISIBLE); reviewControl.findViewById(R.id.btn_cancel).setOnClickListener(this); reviewControl.findViewById(R.id.btn_retake).setOnClickListener(this); reviewControl.findViewById(R.id.btn_done).setOnClickListener(this); } else { mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); mSwitcher.setVisibility(View.VISIBLE); mSwitcher.setOnSwitchListener(this); } mIndicatorWheel = findViewById(R.id.indicator_wheel); // Make sure preview is started. try { startPreviewThread.join(); if (mStartPreviewFail) { showCameraErrorAndFinish(); return; } } catch (InterruptedException ex) { // ignore } mBackCameraId = CameraHolder.instance().getBackCameraId(); mFrontCameraId = CameraHolder.instance().getFrontCameraId(); // Do this after starting preview because it depends on camera // parameters. initializeControlPanel(); initializeCameraPicker(); if (mControlPanel != null) { mZoomPicker = (ZoomPicker) mControlPanel.findViewById(R.id.zoom_picker); mZoomPicker.setEnabled(true); // disabled initially in xml } } private void changeHeadUpDisplayState() { if (mHeadUpDisplay == null) return; // If the camera resumes behind the lock screen, the orientation // will be portrait. That causes OOM when we try to allocation GPU // memory for the GLSurfaceView again when the orientation changes. So, // we delayed initialization of HeadUpDisplay until the orientation // becomes landscape. Configuration config = getResources().getConfiguration(); if (config.orientation == Configuration.ORIENTATION_LANDSCAPE && !mPausing && mFirstTimeInitialized) { if (mGLRootView == null) attachHeadUpDisplay(); } else if (mGLRootView != null) { detachHeadUpDisplay(); } } private void overrideCameraSettings(final String flashMode, final String whiteBalance, final String focusMode) { if (mHeadUpDisplay != null) { mHeadUpDisplay.overrideSettings( CameraSettings.KEY_FLASH_MODE, flashMode, CameraSettings.KEY_WHITE_BALANCE, whiteBalance, CameraSettings.KEY_FOCUS_MODE, focusMode); } if (mControlPanel != null) { mControlPanel.overrideSettings( CameraSettings.KEY_FLASH_MODE, flashMode, CameraSettings.KEY_WHITE_BALANCE, whiteBalance, CameraSettings.KEY_FOCUS_MODE, focusMode); } } private void updateSceneModeUI() { // If scene mode is set, we cannot set flash mode, white balance, and // focus mode, instead, we read it from driver if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { overrideCameraSettings(mParameters.getFlashMode(), mParameters.getWhiteBalance(), mParameters.getFocusMode()); } else { overrideCameraSettings(null, null, null); } } private void loadCameraPreferences() { CameraSettings settings = new CameraSettings(this, mInitialParams, mCameraId, CameraHolder.instance().getCameraInfo()); mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); } private void initializeControlPanel() { mControlPanel = (ControlPanel) findViewById(R.id.control_panel); if (mControlPanel == null) return; loadCameraPreferences(); String[] keys = new String[]{CameraSettings.KEY_FLASH_MODE, CameraSettings.KEY_WHITE_BALANCE, CameraSettings.KEY_COLOR_EFFECT, CameraSettings.KEY_SCENE_MODE}; mControlPanel.initialize(this, mPreferenceGroup, keys, true); mControlPanel.setListener(new MyControlPanelListener()); mPopupGestureDetector = new GestureDetector(this, new PopupGestureListener()); updateSceneModeUI(); } private void initializeHeadUpDisplay() { if (mHeadUpDisplay == null) return; loadCameraPreferences(); // If we have zoom picker, do not show zoom control on head-up display. float[] zoomRatios = null; if (mZoomPicker == null) zoomRatios = getZoomRatios(); mHeadUpDisplay.initialize(this, mPreferenceGroup, zoomRatios, mOrientationCompensation); if (mZoomPicker == null && mParameters.isZoomSupported()) { mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { public void onZoomChanged( int index, float ratio, boolean isMoving) { onZoomValueChanged(index); } }); } updateSceneModeUI(); } private void attachHeadUpDisplay() { mHeadUpDisplay.setOrientation(mOrientationCompensation); if (mParameters.isZoomSupported()) { mHeadUpDisplay.setZoomIndex(mZoomValue); } ViewGroup frame = (ViewGroup) findViewById(R.id.frame); mGLRootView = new GLRootView(this); mGLRootView.setContentPane(mHeadUpDisplay); frame.addView(mGLRootView); } private void detachHeadUpDisplay() { mHeadUpDisplay.setGpsHasSignal(false); mHeadUpDisplay.collapse(); ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); mGLRootView = null; } private boolean collapseCameraControls() { if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { return true; } if (mControlPanel != null && mControlPanel.dismissSettingPopup()) { return true; } return false; } private void enableCameraControls(boolean enable) { if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); if (mControlPanel != null) mControlPanel.setEnabled(enable); if (mCameraPicker != null) mCameraPicker.setEnabled(enable); if (mZoomPicker != null) mZoomPicker.setEnabled(enable); if (mSwitcher != null) mSwitcher.setEnabled(enable); } public static int roundOrientation(int orientation) { return ((orientation + 45) / 90 * 90) % 360; } private class MyOrientationEventListener extends OrientationEventListener { public MyOrientationEventListener(Context context) { super(context); } @Override public void onOrientationChanged(int orientation) { // We keep the last known orientation. So if the user first orient // the camera then point the camera to floor or sky, we still have // the correct orientation. if (orientation == ORIENTATION_UNKNOWN) return; mOrientation = roundOrientation(orientation); // When the screen is unlocked, display rotation may change. Always // calculate the up-to-date orientationCompensation. int orientationCompensation = mOrientation + Util.getDisplayRotation(Camera.this); if (mOrientationCompensation != orientationCompensation) { mOrientationCompensation = orientationCompensation; if (!mIsImageCaptureIntent) { setOrientationIndicator(mOrientationCompensation); } if (mHeadUpDisplay != null) { mHeadUpDisplay.setOrientation(mOrientationCompensation); } } } } private void setOrientationIndicator(int degree) { RotateImageView icon = (RotateImageView) findViewById( R.id.review_thumbnail); if (icon != null) icon.setDegree(degree); icon = (RotateImageView) findViewById(R.id.camera_switch_icon); if (icon != null) icon.setDegree(degree); icon = (RotateImageView) findViewById(R.id.video_switch_icon); if (icon != null) icon.setDegree(degree); } @Override public void onStart() { super.onStart(); if (!mIsImageCaptureIntent) { mSwitcher.setSwitch(SWITCH_CAMERA); } } @Override public void onStop() { super.onStop(); if (mMediaProviderClient != null) { mMediaProviderClient.release(); mMediaProviderClient = null; } } private void checkStorage() { calculatePicturesRemaining(); updateStorageHint(mPicturesRemaining); } public void onClick(View v) { switch (v.getId()) { case R.id.btn_retake: hidePostCaptureAlert(); restartPreview(); break; case R.id.review_thumbnail: if (isCameraIdle()) { viewImage(mThumbnailButton); } break; case R.id.btn_done: doAttach(); break; case R.id.btn_cancel: doCancel(); break; case R.id.btn_gallery: gotoGallery(); break; } } private Bitmap createCaptureBitmap(byte[] data) { // This is really stupid...we just want to read the orientation in // the jpeg header. String filepath = ImageManager.getTempJpegPath(); int degree = 0; if (saveDataToFile(filepath, data)) { degree = ImageManager.getExifOrientation(filepath); new File(filepath).delete(); } // Limit to 50k pixels so we can return it in the intent. Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); bitmap = Util.rotate(bitmap, degree); return bitmap; } private void doAttach() { if (mPausing) { return; } byte[] data = mImageCapture.getLastCaptureData(); if (mCropValue == null) { // First handle the no crop case -- just return the value. If the // caller specifies a "save uri" then write the data to it's // stream. Otherwise, pass back a scaled down version of the bitmap // directly in the extras. if (mSaveUri != null) { OutputStream outputStream = null; try { outputStream = mContentResolver.openOutputStream(mSaveUri); outputStream.write(data); outputStream.close(); setResult(RESULT_OK); finish(); } catch (IOException ex) { // ignore exception } finally { Util.closeSilently(outputStream); } } else { Bitmap bitmap = createCaptureBitmap(data); setResult(RESULT_OK, new Intent("inline-data").putExtra("data", bitmap)); finish(); } } else { // Save the image to a temp file and invoke the cropper Uri tempUri = null; FileOutputStream tempStream = null; try { File path = getFileStreamPath(sTempCropFilename); path.delete(); tempStream = openFileOutput(sTempCropFilename, 0); tempStream.write(data); tempStream.close(); tempUri = Uri.fromFile(path); } catch (FileNotFoundException ex) { setResult(Activity.RESULT_CANCELED); finish(); return; } catch (IOException ex) { setResult(Activity.RESULT_CANCELED); finish(); return; } finally { Util.closeSilently(tempStream); } Bundle newExtras = new Bundle(); if (mCropValue.equals("circle")) { newExtras.putString("circleCrop", "true"); } if (mSaveUri != null) { newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); } else { newExtras.putBoolean("return-data", true); } Intent cropIntent = new Intent("com.android.camera.action.CROP"); cropIntent.setData(tempUri); cropIntent.putExtras(newExtras); startActivityForResult(cropIntent, CROP_MSG); } } private void doCancel() { setResult(RESULT_CANCELED, new Intent()); finish(); } public void onShutterButtonFocus(ShutterButton button, boolean pressed) { if (mPausing) { return; } switch (button.getId()) { case R.id.shutter_button: doFocus(pressed); break; } } public void onShutterButtonClick(ShutterButton button) { if (mPausing) { return; } switch (button.getId()) { case R.id.shutter_button: doSnap(); break; } } private OnScreenHint mStorageHint; private void updateStorageHint(int remaining) { String noStorageText = null; if (remaining == MenuHelper.NO_STORAGE_ERROR) { String state = Environment.getExternalStorageState(); if (state == Environment.MEDIA_CHECKING) { noStorageText = getString(R.string.preparing_sd); } else { noStorageText = getString(R.string.no_storage); } } else if (remaining == MenuHelper.CANNOT_STAT_ERROR) { noStorageText = getString(R.string.access_sd_fail); } else if (remaining < 1) { noStorageText = getString(R.string.not_enough_space); } if (noStorageText != null) { if (mStorageHint == null) { mStorageHint = OnScreenHint.makeText(this, noStorageText); } else { mStorageHint.setText(noStorageText); } mStorageHint.show(); } else if (mStorageHint != null) { mStorageHint.cancel(); mStorageHint = null; } } private void installIntentFilter() { // install an intent filter to receive SD card related events. IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); intentFilter.addDataScheme("file"); registerReceiver(mReceiver, intentFilter); mDidRegister = true; } private void initializeFocusTone() { // Initialize focus tone generator. try { mFocusToneGenerator = new ToneGenerator( AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); } catch (Throwable ex) { Log.w(TAG, "Exception caught while creating tone generator: ", ex); mFocusToneGenerator = null; } } private void initializeScreenBrightness() { Window win = getWindow(); // Overright the brightness settings if it is automatic int mode = Settings.System.getInt( getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE, Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { WindowManager.LayoutParams winParams = win.getAttributes(); winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; win.setAttributes(winParams); } } @Override protected void onResume() { super.onResume(); mPausing = false; mJpegPictureCallbackTime = 0; mZoomValue = 0; mImageCapture = new ImageCapture(); // Start the preview if it is not started. if (!mPreviewing && !mStartPreviewFail) { resetExposureCompensation(); if (!restartPreview()) return; } if (mSurfaceHolder != null) { // If first time initialization is not finished, put it in the // message queue. if (!mFirstTimeInitialized) { mHandler.sendEmptyMessage(FIRST_TIME_INIT); } else { initializeSecondTime(); } } keepScreenOnAwhile(); } @Override public void onConfigurationChanged(Configuration config) { super.onConfigurationChanged(config); changeHeadUpDisplayState(); } private static ImageManager.DataLocation dataLocation() { return ImageManager.DataLocation.EXTERNAL; } @Override protected void onPause() { mPausing = true; stopPreview(); // Close the camera now because other activities may need to use it. closeCamera(); resetScreenOn(); collapseCameraControls(); changeHeadUpDisplayState(); if (mFirstTimeInitialized) { mOrientationListener.disable(); if (!mIsImageCaptureIntent) { if (mThumbnailButton != null) { mThumbnailButton.storeData( ImageManager.getLastImageThumbPath()); } } hidePostCaptureAlert(); } if (mDidRegister) { unregisterReceiver(mReceiver); mDidRegister = false; } stopReceivingLocationUpdates(); if (mFocusToneGenerator != null) { mFocusToneGenerator.release(); mFocusToneGenerator = null; } if (mStorageHint != null) { mStorageHint.cancel(); mStorageHint = null; } // If we are in an image capture intent and has taken // a picture, we just clear it in onPause. mImageCapture.clearLastData(); mImageCapture = null; // Remove the messages in the event queue. mHandler.removeMessages(RESTART_PREVIEW); mHandler.removeMessages(FIRST_TIME_INIT); super.onPause(); } @Override protected void onActivityResult( int requestCode, int resultCode, Intent data) { switch (requestCode) { case CROP_MSG: { Intent intent = new Intent(); if (data != null) { Bundle extras = data.getExtras(); if (extras != null) { intent.putExtras(extras); } } setResult(resultCode, intent); finish(); File path = getFileStreamPath(sTempCropFilename); path.delete(); break; } } } private boolean canTakePicture() { return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); } private void autoFocus() { // Initiate autofocus only when preview is started and snapshot is not // in progress. if (canTakePicture()) { enableCameraControls(false); Log.v(TAG, "Start autofocus."); mFocusStartTime = System.currentTimeMillis(); mFocusState = FOCUSING; updateFocusIndicator(); mCameraDevice.autoFocus(mAutoFocusCallback); } } private void cancelAutoFocus() { // User releases half-pressed focus key. if (mStatus != SNAPSHOT_IN_PROGRESS && (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { Log.v(TAG, "Cancel autofocus."); enableCameraControls(true); mCameraDevice.cancelAutoFocus(); } if (mFocusState != FOCUSING_SNAP_ON_FINISH) { clearFocusState(); } } private void clearFocusState() { mFocusState = FOCUS_NOT_STARTED; updateFocusIndicator(); } private void updateFocusIndicator() { if (mFocusRectangle == null) return; if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { mFocusRectangle.showStart(); } else if (mFocusState == FOCUS_SUCCESS) { mFocusRectangle.showSuccess(); } else if (mFocusState == FOCUS_FAIL) { mFocusRectangle.showFail(); } else { mFocusRectangle.clear(); } } @Override public void onBackPressed() { if (!isCameraIdle()) { // ignore backs while we're taking a picture return; } else if (!collapseCameraControls()) { super.onBackPressed(); } } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_FOCUS: if (mFirstTimeInitialized && event.getRepeatCount() == 0) { doFocus(true); } return true; case KeyEvent.KEYCODE_CAMERA: if (mFirstTimeInitialized && event.getRepeatCount() == 0) { doSnap(); } return true; case KeyEvent.KEYCODE_DPAD_CENTER: // If we get a dpad center event without any focused view, move // the focus to the shutter button and press it. if (mFirstTimeInitialized && event.getRepeatCount() == 0) { // Start auto-focus immediately to reduce shutter lag. After // the shutter button gets the focus, doFocus() will be // called again but it is fine. if (collapseCameraControls()) return true; doFocus(true); if (mShutterButton.isInTouchMode()) { mShutterButton.requestFocusFromTouch(); } else { mShutterButton.requestFocus(); } mShutterButton.setPressed(true); } return true; } return super.onKeyDown(keyCode, event); } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_FOCUS: if (mFirstTimeInitialized) { doFocus(false); } return true; } return super.onKeyUp(keyCode, event); } private void doSnap() { if (collapseCameraControls()) return; Log.v(TAG, "doSnap: mFocusState=" + mFocusState); // If the user has half-pressed the shutter and focus is completed, we // can take the photo right away. If the focus mode is infinity, we can // also take the photo. if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) || (mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { mImageCapture.onSnap(); } else if (mFocusState == FOCUSING) { // Half pressing the shutter (i.e. the focus button event) will // already have requested AF for us, so just request capture on // focus here. mFocusState = FOCUSING_SNAP_ON_FINISH; } else if (mFocusState == FOCUS_NOT_STARTED) { // Focus key down event is dropped for some reasons. Just ignore. } } private void doFocus(boolean pressed) { // Do the focus if the mode is not infinity. if (collapseCameraControls()) return; if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { if (pressed) { // Focus key down. autoFocus(); } else { // Focus key up. cancelAutoFocus(); } } } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // Make sure we have a surface in the holder before proceeding. if (holder.getSurface() == null) { Log.d(TAG, "holder.getSurface() == null"); return; } // We need to save the holder for later use, even when the mCameraDevice // is null. This could happen if onResume() is invoked after this // function. mSurfaceHolder = holder; // The mCameraDevice will be null if it fails to connect to the camera // hardware. In this case we will show a dialog and then finish the // activity, so it's OK to ignore it. if (mCameraDevice == null) return; // Sometimes surfaceChanged is called after onPause or before onResume. // Ignore it. if (mPausing || isFinishing()) return; if (mPreviewing && holder.isCreating()) { // Set preview display if the surface is being created and preview // was already started. That means preview display was set to null // and we need to set it now. setPreviewDisplay(holder); } else { // 1. Restart the preview if the size of surface was changed. The // framework may not support changing preview display on the fly. // 2. Start the preview now if surface was destroyed and preview // stopped. restartPreview(); } // If first time initialization is not finished, send a message to do // it later. We want to finish surfaceChanged as soon as possible to let // user see preview first. if (!mFirstTimeInitialized) { mHandler.sendEmptyMessage(FIRST_TIME_INIT); } else { initializeSecondTime(); } } public void surfaceCreated(SurfaceHolder holder) { } public void surfaceDestroyed(SurfaceHolder holder) { stopPreview(); mSurfaceHolder = null; } private void closeCamera() { if (mCameraDevice != null) { CameraHolder.instance().release(); mCameraDevice.setZoomChangeListener(null); mCameraDevice = null; mPreviewing = false; } } private void ensureCameraDevice() throws CameraHardwareException { if (mCameraDevice == null) { mCameraDevice = CameraHolder.instance().open(mCameraId); mInitialParams = mCameraDevice.getParameters(); } } private void showCameraErrorAndFinish() { Resources ress = getResources(); Util.showFatalErrorAndFinish(Camera.this, ress.getString(R.string.camera_error_title), ress.getString(R.string.cannot_connect_camera)); } private boolean restartPreview() { try { startPreview(); } catch (CameraHardwareException e) { showCameraErrorAndFinish(); return false; } return true; } private void setPreviewDisplay(SurfaceHolder holder) { try { mCameraDevice.setPreviewDisplay(holder); } catch (Throwable ex) { closeCamera(); throw new RuntimeException("setPreviewDisplay failed", ex); } } private void startPreview() throws CameraHardwareException { if (mPausing || isFinishing()) return; ensureCameraDevice(); mCameraDevice.setErrorCallback(mErrorCallback); // If we're previewing already, stop the preview first (this will blank // the screen). if (mPreviewing) stopPreview(); setPreviewDisplay(mSurfaceHolder); Util.setCameraDisplayOrientation(this, mCameraId, mCameraDevice); setCameraParameters(UPDATE_PARAM_ALL); try { Log.v(TAG, "startPreview"); mCameraDevice.startPreview(); } catch (Throwable ex) { closeCamera(); throw new RuntimeException("startPreview failed", ex); } mPreviewing = true; mZoomState = ZOOM_STOPPED; mStatus = IDLE; } private void stopPreview() { if (mCameraDevice != null && mPreviewing) { Log.v(TAG, "stopPreview"); mCameraDevice.stopPreview(); } mPreviewing = false; // If auto focus was in progress, it would have been canceled. clearFocusState(); } private static boolean isSupported(String value, List supported) { return supported == null ? false : supported.indexOf(value) >= 0; } private void updateCameraParametersInitialize() { // Reset preview frame rate to the maximum because it may be lowered by // video camera application. List frameRates = mParameters.getSupportedPreviewFrameRates(); if (frameRates != null) { Integer max = Collections.max(frameRates); mParameters.setPreviewFrameRate(max); } } private void updateCameraParametersZoom() { // Set zoom. if (mParameters.isZoomSupported()) { mParameters.setZoom(mZoomValue); } } private void updateCameraParametersPreference() { // Set picture size. String pictureSize = mPreferences.getString( CameraSettings.KEY_PICTURE_SIZE, null); if (pictureSize == null) { CameraSettings.initialCameraPictureSize(this, mParameters); } else { List supported = mParameters.getSupportedPictureSizes(); CameraSettings.setCameraPictureSize( pictureSize, supported, mParameters); } // Set the preview frame aspect ratio according to the picture size. Size size = mParameters.getPictureSize(); PreviewFrameLayout frameLayout = (PreviewFrameLayout) findViewById(R.id.frame_layout); frameLayout.setAspectRatio((double) size.width / size.height); // Set a preview size that is closest to the viewfinder height and has // the right aspect ratio. List sizes = mParameters.getSupportedPreviewSizes(); Size optimalSize = Util.getOptimalPreviewSize(this, sizes, (double) size.width / size.height); Size original = mParameters.getPreviewSize(); if (!original.equals(optimalSize)) { mParameters.setPreviewSize(optimalSize.width, optimalSize.height); // Zoom related settings will be changed for different preview // sizes, so set and read the parameters to get lastest values mCameraDevice.setParameters(mParameters); mParameters = mCameraDevice.getParameters(); } Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); // Since change scene mode may change supported values, // Set scene mode first, mSceneMode = mPreferences.getString( CameraSettings.KEY_SCENE_MODE, getString(R.string.pref_camera_scenemode_default)); if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { if (!mParameters.getSceneMode().equals(mSceneMode)) { mParameters.setSceneMode(mSceneMode); mCameraDevice.setParameters(mParameters); // Setting scene mode will change the settings of flash mode, // white balance, and focus mode. Here we read back the // parameters, so we can know those settings. mParameters = mCameraDevice.getParameters(); } } else { mSceneMode = mParameters.getSceneMode(); if (mSceneMode == null) { mSceneMode = Parameters.SCENE_MODE_AUTO; } } // Set JPEG quality. String jpegQuality = mPreferences.getString( CameraSettings.KEY_JPEG_QUALITY, getString(R.string.pref_camera_jpegquality_default)); mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); // For the following settings, we need to check if the settings are // still supported by latest driver, if not, ignore the settings. // Set color effect parameter. String colorEffect = mPreferences.getString( CameraSettings.KEY_COLOR_EFFECT, getString(R.string.pref_camera_coloreffect_default)); if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { mParameters.setColorEffect(colorEffect); } // Set exposure compensation String exposure = mPreferences.getString( CameraSettings.KEY_EXPOSURE, getString(R.string.pref_exposure_default)); try { int value = Integer.parseInt(exposure); int max = mParameters.getMaxExposureCompensation(); int min = mParameters.getMinExposureCompensation(); if (value >= min && value <= max) { mParameters.setExposureCompensation(value); } else { Log.w(TAG, "invalid exposure range: " + exposure); } } catch (NumberFormatException e) { Log.w(TAG, "invalid exposure: " + exposure); } if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { // Set flash mode. String flashMode = mPreferences.getString( CameraSettings.KEY_FLASH_MODE, getString(R.string.pref_camera_flashmode_default)); List supportedFlash = mParameters.getSupportedFlashModes(); if (isSupported(flashMode, supportedFlash)) { mParameters.setFlashMode(flashMode); } else { flashMode = mParameters.getFlashMode(); if (flashMode == null) { flashMode = getString( R.string.pref_camera_flashmode_no_flash); } } // Set white balance parameter. String whiteBalance = mPreferences.getString( CameraSettings.KEY_WHITE_BALANCE, getString(R.string.pref_camera_whitebalance_default)); if (isSupported(whiteBalance, mParameters.getSupportedWhiteBalance())) { mParameters.setWhiteBalance(whiteBalance); } else { whiteBalance = mParameters.getWhiteBalance(); if (whiteBalance == null) { whiteBalance = Parameters.WHITE_BALANCE_AUTO; } } // Set focus mode. mFocusMode = mPreferences.getString( CameraSettings.KEY_FOCUS_MODE, getString(R.string.pref_camera_focusmode_default)); if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { mParameters.setFocusMode(mFocusMode); } else { mFocusMode = mParameters.getFocusMode(); if (mFocusMode == null) { mFocusMode = Parameters.FOCUS_MODE_AUTO; } } } else { mFocusMode = mParameters.getFocusMode(); } } // We separate the parameters into several subsets, so we can update only // the subsets actually need updating. The PREFERENCE set needs extra // locking because the preference can be changed from GLThread as well. private void setCameraParameters(int updateSet) { mParameters = mCameraDevice.getParameters(); if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { updateCameraParametersInitialize(); } if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { updateCameraParametersZoom(); } if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { updateCameraParametersPreference(); } mCameraDevice.setParameters(mParameters); } // If the Camera is idle, update the parameters immediately, otherwise // accumulate them in mUpdateSet and update later. private void setCameraParametersWhenIdle(int additionalUpdateSet) { mUpdateSet |= additionalUpdateSet; if (mCameraDevice == null) { // We will update all the parameters when we open the device, so // we don't need to do anything now. mUpdateSet = 0; return; } else if (isCameraIdle()) { setCameraParameters(mUpdateSet); updateSceneModeUI(); mUpdateSet = 0; } else { if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { mHandler.sendEmptyMessageDelayed( SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); } } } private void gotoGallery() { MenuHelper.gotoCameraImageGallery(this); } private void viewImage(RotateImageView view) { if(!view.isUriValid()) { Log.e(TAG, "Uri invalid. uri=" + view.getUri()); return; } try { startActivity(new Intent( Util.REVIEW_ACTION, view.getUri())); } catch (ActivityNotFoundException ex) { try { startActivity(new Intent( Intent.ACTION_VIEW, view.getUri())); } catch (ActivityNotFoundException e) { Log.e(TAG, "review image fail. uri=" + view.getUri(), e); } } } private void startReceivingLocationUpdates() { if (mLocationManager != null) { try { mLocationManager.requestLocationUpdates( LocationManager.NETWORK_PROVIDER, 1000, 0F, mLocationListeners[1]); } catch (java.lang.SecurityException ex) { Log.i(TAG, "fail to request location update, ignore", ex); } catch (IllegalArgumentException ex) { Log.d(TAG, "provider does not exist " + ex.getMessage()); } try { mLocationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 1000, 0F, mLocationListeners[0]); showGpsOnScreenIndicator(false); } catch (java.lang.SecurityException ex) { Log.i(TAG, "fail to request location update, ignore", ex); } catch (IllegalArgumentException ex) { Log.d(TAG, "provider does not exist " + ex.getMessage()); } Log.d(TAG, "startReceivingLocationUpdates"); } } private void stopReceivingLocationUpdates() { if (mLocationManager != null) { for (int i = 0; i < mLocationListeners.length; i++) { try { mLocationManager.removeUpdates(mLocationListeners[i]); } catch (Exception ex) { Log.i(TAG, "fail to remove location listners, ignore", ex); } } Log.d(TAG, "stopReceivingLocationUpdates"); } hideGpsOnScreenIndicator(); } private Location getCurrentLocation() { // go in best to worst order for (int i = 0; i < mLocationListeners.length; i++) { Location l = mLocationListeners[i].current(); if (l != null) return l; } Log.d(TAG, "No location received yet."); return null; } private boolean isCameraIdle() { return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; } private boolean isImageCaptureIntent() { String action = getIntent().getAction(); return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); } private void setupCaptureParams() { Bundle myExtras = getIntent().getExtras(); if (myExtras != null) { mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); mCropValue = myExtras.getString("crop"); } } private void showPostCaptureAlert() { if (mIsImageCaptureIntent) { if (mIndicatorWheel == null) { mShutterButton.setVisibility(View.INVISIBLE); } else { mShutterButton.setEnabled(false); } int[] pickIds = {R.id.btn_retake, R.id.btn_done}; for (int id : pickIds) { View button = findViewById(id); ((View) button.getParent()).setVisibility(View.VISIBLE); } // Remove the text of the cancel button View view = findViewById(R.id.btn_cancel); if (view instanceof Button) ((Button) view).setText(""); } } private void hidePostCaptureAlert() { if (mIsImageCaptureIntent) { if (mIndicatorWheel == null) { mShutterButton.setVisibility(View.VISIBLE); } else { mShutterButton.setEnabled(true); } int[] pickIds = {R.id.btn_retake, R.id.btn_done}; for (int id : pickIds) { View button = findViewById(id); ((View) button.getParent()).setVisibility(View.GONE); } enableCameraControls(true); // Restore the text of the cancel button View view = findViewById(R.id.btn_cancel); if (view instanceof Button) { ((Button) view).setText(R.string.review_cancel); } } } private int calculatePicturesRemaining() { mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); return mPicturesRemaining; } @Override public boolean onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); // Only show the menu when camera is idle. for (int i = 0; i < menu.size(); i++) { menu.getItem(i).setVisible(isCameraIdle()); } return true; } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); if (mIsImageCaptureIntent) { // No options menu for attach mode. return false; } else { addBaseMenuItems(menu); } return true; } private void addBaseMenuItems(Menu menu) { MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { public void run() { switchToVideoMode(); } }); MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, MenuHelper.POSITION_GOTO_GALLERY, R.string.camera_gallery_photos_text) .setOnMenuItemClickListener(new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { gotoGallery(); return true; } }); gallery.setIcon(android.R.drawable.ic_menu_gallery); mGalleryItems.add(gallery); if (mNumberOfCameras > 1) { menu.add(Menu.NONE, Menu.NONE, MenuHelper.POSITION_SWITCH_CAMERA_ID, R.string.switch_camera_id) .setOnMenuItemClickListener(new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { CameraSettings.writePreferredCameraId(mPreferences, ((mCameraId == mFrontCameraId) ? mBackCameraId : mFrontCameraId)); onSharedPreferenceChanged(); return true; } }).setIcon(android.R.drawable.ic_menu_camera); } } private void switchCameraId(int cameraId) { if (mPausing || !isCameraIdle()) return; mCameraId = cameraId; stopPreview(); closeCamera(); // Remove the messages in the event queue. mHandler.removeMessages(RESTART_PREVIEW); // Reset variables mJpegPictureCallbackTime = 0; mZoomValue = 0; // Reload the preferences. mPreferences.setLocalId(this, mCameraId); CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); // Restart the preview. resetExposureCompensation(); if (!restartPreview()) return; initializeZoom(); // Reload the UI. initializeHeadUpDisplay(); initializeControlPanel(); } private boolean switchToVideoMode() { if (isFinishing() || !isCameraIdle()) return false; MenuHelper.gotoVideoMode(Camera.this); mHandler.removeMessages(FIRST_TIME_INIT); finish(); return true; } public boolean onSwitchChanged(Switcher source, boolean onOff) { if (onOff == SWITCH_VIDEO) { return switchToVideoMode(); } else { return true; } } private void onSharedPreferenceChanged() { // ignore the events after "onPause()" if (mPausing) return; boolean recordLocation; recordLocation = RecordLocationPreference.get( mPreferences, getContentResolver()); if (mRecordLocation != recordLocation) { mRecordLocation = recordLocation; if (mRecordLocation) { startReceivingLocationUpdates(); } else { stopReceivingLocationUpdates(); } } int cameraId = CameraSettings.readPreferredCameraId(mPreferences); if (mCameraId != cameraId) { switchCameraId(cameraId); } else { setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); } } @Override public void onUserInteraction() { super.onUserInteraction(); keepScreenOnAwhile(); } private void resetScreenOn() { mHandler.removeMessages(CLEAR_SCREEN_DELAY); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); } private void keepScreenOnAwhile() { mHandler.removeMessages(CLEAR_SCREEN_DELAY); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); } private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { public void onSharedPreferenceChanged() { Camera.this.onSharedPreferenceChanged(); } public void onRestorePreferencesClicked() { Camera.this.onRestorePreferencesClicked(); } public void onPopupWindowVisibilityChanged(int visibility) { } } protected void onRestorePreferencesClicked() { if (mPausing) return; Runnable runnable = new Runnable() { public void run() { restorePreferences(); } }; MenuHelper.confirmAction(this, getString(R.string.confirm_restore_title), getString(R.string.confirm_restore_message), runnable); } private void restorePreferences() { // Reset the zoom. Zoom value is not stored in preference. if (mParameters.isZoomSupported()) { mZoomValue = 0; setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); } if (mHeadUpDisplay != null) { mHeadUpDisplay.restorePreferences(mParameters); } if (mControlPanel != null) { mControlPanel.dismissSettingPopup(); CameraSettings.restorePreferences(Camera.this, mPreferences, mParameters); initializeControlPanel(); onSharedPreferenceChanged(); } } protected void onOverriddenPreferencesClicked() { if (mPausing) return; if (mNotSelectableToast == null) { String str = getResources().getString(R.string.not_selectable_in_scene_mode); mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); } mNotSelectableToast.cancel(); mNotSelectableToast.show(); } private class MyControlPanelListener implements ControlPanel.Listener { public void onSharedPreferenceChanged() { Camera.this.onSharedPreferenceChanged(); } public void onRestorePreferencesClicked() { Camera.this.onRestorePreferencesClicked(); } public void onOverriddenPreferencesClicked() { Camera.this.onOverriddenPreferencesClicked(); } } private class MyCameraPickerListener implements CameraPicker.Listener { public void onSharedPreferenceChanged() { Camera.this.onSharedPreferenceChanged(); } } }