| /* |
| * Copyright (C) 2017 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.wallpaper.module; |
| |
| import android.content.Context; |
| import android.os.ParcelFileDescriptor; |
| import android.util.Log; |
| |
| import com.android.wallpaper.compat.BuildCompat; |
| import com.android.wallpaper.compat.WallpaperManagerCompat; |
| |
| import java.io.IOException; |
| |
| /** |
| * Checks whether an explicit lock wallpaper is set to the device (i.e., independently shown under |
| * the keyguard and separate from the wallpaper shown under the user's launcher). |
| */ |
| public class LockWallpaperStatusChecker { |
| |
| private static final String TAG = "LockWPStatusChecker"; |
| |
| /** |
| * Returns whether a lock screen wallpaper is independently set to the device. |
| */ |
| public static boolean isLockWallpaperSet(Context context) { |
| // Lock screen wallpapers are not supported until Android N. |
| if (!BuildCompat.isAtLeastN()) { |
| return false; |
| } |
| |
| WallpaperManagerCompat wallpaperManagerCompat = InjectorProvider.getInjector() |
| .getWallpaperManagerCompat(context); |
| ParcelFileDescriptor parcelFd = |
| wallpaperManagerCompat.getWallpaperFile(WallpaperManagerCompat.FLAG_LOCK); |
| boolean isSet = parcelFd != null; |
| if (isSet) { |
| try { |
| // Close the ParcelFileDescriptor if it's not null to avoid a resource leak. |
| parcelFd.close(); |
| } catch (IOException e) { |
| Log.e(TAG, "IO exception when closing the lock screen wallpaper file descriptor."); |
| } |
| } |
| return isSet; |
| } |
| } |