| /* |
| * Copyright (C) 2015 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.util; |
| |
| import android.annotation.TargetApi; |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.KeyguardManager; |
| import android.app.NotificationManager; |
| import android.app.admin.DevicePolicyManager; |
| import android.content.Context; |
| import android.hardware.SensorManager; |
| import android.hardware.camera2.CameraManager; |
| import android.hardware.display.DisplayManager; |
| import android.location.LocationManager; |
| import android.media.AudioManager; |
| import android.os.Build.VERSION_CODES; |
| import android.os.PowerManager; |
| import android.os.Vibrator; |
| import android.view.LayoutInflater; |
| import android.view.WindowManager; |
| import android.view.accessibility.AccessibilityManager; |
| |
| import com.android.camera.debug.Log; |
| import com.android.camera.debug.Log.Tag; |
| |
| /** |
| * Initializable singleton set of android service providers. |
| * Some services may be null |
| */ |
| public class AndroidServices { |
| private static Tag TAG = new Tag("AndroidServices"); |
| /** Log all requests; otherwise will only log long requests. */ |
| private static final boolean LOG_ALL_REQUESTS = false; |
| /** Log requests if this threshold is exceeded. */ |
| private static final int LOG_THRESHOLD_MILLIS = 10; |
| |
| private static class Singleton { |
| private static final AndroidServices INSTANCE = |
| new AndroidServices(AndroidContext.instance().get()); |
| } |
| |
| public static AndroidServices instance() { |
| return Singleton.INSTANCE; |
| } |
| |
| private final Context mContext; |
| private AndroidServices(Context context) { |
| mContext = context; |
| } |
| |
| public ActivityManager provideActivityManager() { |
| return (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); |
| } |
| |
| public AudioManager provideAudioManager() { |
| return (AudioManager) getSystemService(Context.AUDIO_SERVICE); |
| } |
| |
| public AccessibilityManager provideAccessibilityManager() { |
| return (AccessibilityManager) getSystemService(Context.ACCESSIBILITY_SERVICE); |
| } |
| |
| @TargetApi(VERSION_CODES.LOLLIPOP) |
| public CameraManager provideCameraManager() { |
| CameraManager cameraManager = null; |
| |
| try { |
| Object service = ApiHelper.HAS_CAMERA_2_API ? getSystemService(Context.CAMERA_SERVICE) |
| : null; |
| cameraManager = (CameraManager) service; |
| } catch (IllegalStateException ex) { |
| Log.e(TAG, "Could not get the CAMERA_SERVICE"); |
| cameraManager = null; |
| } |
| |
| return cameraManager; |
| } |
| |
| public DevicePolicyManager provideDevicePolicyManager() { |
| return (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE); |
| } |
| |
| public DisplayManager provideDisplayManager() { |
| return (DisplayManager) getSystemService(Context.DISPLAY_SERVICE); |
| } |
| |
| public KeyguardManager provideKeyguardManager() { |
| return (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE); |
| } |
| |
| public LayoutInflater provideLayoutInflater() { |
| return (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| } |
| |
| public LocationManager provideLocationManager() { |
| return (LocationManager) getSystemService(Context.LOCATION_SERVICE); |
| } |
| |
| public NotificationManager provideNotificationManager() { |
| return (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); |
| } |
| |
| public PowerManager providePowerManager() { |
| return (PowerManager) getSystemService(Context.POWER_SERVICE); |
| } |
| |
| public SensorManager provideSensorManager() { |
| return (SensorManager) getSystemService(Context.SENSOR_SERVICE); |
| } |
| |
| public Vibrator provideVibrator() { |
| return (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); |
| } |
| |
| public WindowManager provideWindowManager(Activity context) { |
| return (WindowManager) getSystemService(Context.WINDOW_SERVICE, context); |
| } |
| |
| private Object getSystemService(String service) { |
| return getSystemService(service, null); |
| } |
| |
| private Object getSystemService(String service, Context targetContext) { |
| try { |
| long start = System.currentTimeMillis(); |
| if (targetContext == null) targetContext = mContext; |
| |
| Object result = targetContext.getSystemService(service); |
| |
| long duration = System.currentTimeMillis() - start; |
| if (duration > LOG_THRESHOLD_MILLIS) { |
| Log.w(TAG, "Warning: providing system service " + service + " took " + |
| duration + "ms"); |
| } else if (LOG_ALL_REQUESTS) { |
| Log.v(TAG, "Provided system service " + service + " in " + duration + "ms"); |
| } |
| return result; |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| } |