Add front/back camera switch

bug:3156676
Change-Id: I8a5394aefa068cb099b89c5739abf0cfd78591a9

1 files changed, 87 insertions, 0 deletions

diff --git a/src/com/android/camera/ui/CameraPicker.java b/src/com/android/camera/ui/CameraPicker.java
new file mode 100644
index 0000000..e2a3441
--- /dev/null
+++ b/src/com/android/camera/ui/CameraPicker.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2010 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.ui;
+
+import com.android.camera.ListPreference;
+import com.android.camera.R;
+
+import android.content.Context;
+import android.hardware.Camera.CameraInfo;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+
+/**
+ * A view for switching the front/back camera.
+ */
+public class CameraPicker extends RadioGroup implements View.OnClickListener {
+    private RadioButton mFrontCamera;
+    private RadioButton mBackCamera;
+    private Listener mListener;
+    private ListPreference mPreference;
+    private CharSequence[] mCameras;
+    private int mCameraIndex;
+
+    public CameraPicker(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    static public interface Listener {
+        public void onSharedPreferenceChanged();
+    }
+
+    public void setListener(Listener listener) {
+        mListener = listener;
+    }
+
+    public void initialize(ListPreference pref) {
+        mPreference = pref;
+        mCameras = pref.getEntryValues();
+        if (mCameras == null) return;
+        String cameraId = pref.getValue();
+        setVisibility(View.VISIBLE);
+        if (mCameras[CameraInfo.CAMERA_FACING_FRONT].equals(cameraId)) {
+            mFrontCamera.setChecked(true);
+            mCameraIndex = CameraInfo.CAMERA_FACING_FRONT;
+        } else {
+            mBackCamera.setChecked(true);
+            mCameraIndex = CameraInfo.CAMERA_FACING_BACK;
+        }
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+        mFrontCamera = (RadioButton) findViewById(R.id.camera_switch_to_front);
+        mFrontCamera.setOnClickListener(this);
+        mBackCamera = (RadioButton) findViewById(R.id.camera_switch_to_back);
+        mBackCamera.setOnClickListener(this);
+    }
+
+    public void onClick(View v) {
+        int newCameraIndex = (v == mFrontCamera)
+                ? CameraInfo.CAMERA_FACING_FRONT
+                : CameraInfo.CAMERA_FACING_BACK;
+        if (mCameraIndex != newCameraIndex) {
+            mCameraIndex = newCameraIndex;
+            mPreference.setValue((String) mCameras[mCameraIndex]);
+            mListener.onSharedPreferenceChanged();
+        }
+    }
+
+}