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/*
* 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 android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
/**
* {@code CameraButtonIntentReceiver} is invoked when the camera button is
* long-pressed.
*
* It is declared in {@code AndroidManifest.xml} to receive the
* {@code android.intent.action.CAMERA_BUTTON} intent.
*
* After making sure we can use the camera hardware, it starts the Camera
* activity.
*/
public class CameraButtonIntentReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// Try to get the camera hardware
CameraHolder holder = CameraHolder.instance();
ComboPreferences pref = new ComboPreferences(context);
int cameraId = CameraSettings.readPreferredCameraId(pref);
if (holder.tryOpen(cameraId) == null) return;
// We are going to launch the camera, so hold the camera for later use
holder.keep();
holder.release();
Intent i = new Intent(Intent.ACTION_MAIN);
i.setClass(context, Camera.class);
i.addCategory(Intent.CATEGORY_LAUNCHER);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TOP);
context.startActivity(i);
}
}
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