2 * Copyright (C) 2007 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.android.camera;
19 import android.content.BroadcastReceiver;
20 import android.content.Context;
21 import android.content.Intent;
24 * {@code CameraButtonIntentReceiver} is invoked when the camera button is
27 * It is declared in {@code AndroidManifest.xml} to receive the
28 * {@code android.intent.action.CAMERA_BUTTON} intent.
30 * After making sure we can use the camera hardware, it starts the Camera
33 public class CameraButtonIntentReceiver extends BroadcastReceiver {
36 public void onReceive(Context context, Intent intent) {
37 // Try to get the camera hardware
38 CameraHolder holder = CameraHolder.instance();
39 ComboPreferences pref = new ComboPreferences(context);
40 int cameraId = CameraSettings.readPreferredCameraId(pref);
41 if (holder.tryOpen(null, cameraId, null) == null) {
45 // We are going to launch the camera, so hold the camera for later use
48 Intent i = new Intent(Intent.ACTION_MAIN);
49 i.setClass(context, CameraActivity.class);
50 i.addCategory(Intent.CATEGORY_LAUNCHER);
51 i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
52 | Intent.FLAG_ACTIVITY_CLEAR_TOP);
53 context.startActivity(i);