1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17 package com.android.camera; 18 19 import android.content.BroadcastReceiver; 20 import android.content.ComponentName; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.content.pm.PackageManager; 24 import android.hardware.Camera.CameraInfo; 25 26 import com.android.camera.debug.Log; 27 28 // Enable or disable camera-related activities based on "camera hal" in every boot up. 29 // This receiver runs when BOOT_COMPLETED intent is received. 30 public class SetActivitiesCameraReceiver extends BroadcastReceiver { 31 private static final Log.Tag TAG = new Log.Tag("SetActivitiesCameraReceiver"); 32 private static final boolean CHECK_BACK_CAMERA_ONLY = false; 33 private static final String ACTIVITIES[] = { 34 "com.android.camera.CameraLauncher", 35 }; 36 37 @Override onReceive(Context context, Intent intent)38 public void onReceive(Context context, Intent intent) { 39 // Disable camera-related activities if there is no camera. 40 int component_state = (CHECK_BACK_CAMERA_ONLY 41 ? hasBackCamera(context) : hasCamera(context)) 42 ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED 43 : PackageManager.COMPONENT_ENABLED_STATE_DISABLED; 44 45 Log.i(TAG, "component state is " + component_state); 46 for (int i = 0; i < ACTIVITIES.length; i++) { 47 setComponent(context, ACTIVITIES[i], 48 component_state); 49 } 50 } 51 hasCamera(Context context)52 private boolean hasCamera(Context context) { 53 PackageManager pm = context.getPackageManager(); 54 return pm.hasSystemFeature(PackageManager.FEATURE_CAMERA) 55 || pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_FRONT) 56 || pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_EXTERNAL); 57 } 58 hasBackCamera(Context context)59 private boolean hasBackCamera(Context context) { 60 PackageManager pm = context.getPackageManager(); 61 return pm.hasSystemFeature(PackageManager.FEATURE_CAMERA); 62 } 63 setComponent(Context context, String klass, final int enabledState)64 private void setComponent(Context context, String klass, final int enabledState) { 65 ComponentName name = new ComponentName(context, klass); 66 PackageManager pm = context.getPackageManager(); 67 68 // We need the DONT_KILL_APP flag, otherwise we will be killed 69 // immediately because we are in the same app. 70 pm.setComponentEnabledSetting(name, 71 enabledState, 72 PackageManager.DONT_KILL_APP); 73 } 74 } 75