Add API to clear a specific wallpaper
There was previously no public API for clearing the keyguard wallpaper
versus the system wallpaper, or both. Now there is.
Bug 27400185
Change-Id: If1789dd430040acdf16d77413c0e4b46bf3789f3
diff --git a/api/current.txt b/api/current.txt
index aeaae55..8624cf6 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -5711,6 +5711,7 @@
public class WallpaperManager {
method public void clear() throws java.io.IOException;
+ method public void clear(int) throws java.io.IOException;
method public void clearWallpaperOffsets(android.os.IBinder);
method public void forgetLoadedWallpaper();
method public android.graphics.drawable.Drawable getBuiltInDrawable();
diff --git a/api/system-current.txt b/api/system-current.txt
index 1a2c854..505b1fb 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5843,6 +5843,7 @@
public class WallpaperManager {
method public void clear() throws java.io.IOException;
+ method public void clear(int) throws java.io.IOException;
method public void clearWallpaper();
method public void clearWallpaper(int, int);
method public void clearWallpaperOffsets(android.os.IBinder);
diff --git a/api/test-current.txt b/api/test-current.txt
index 1039fed..3c54b34 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -5715,6 +5715,7 @@
public class WallpaperManager {
method public void clear() throws java.io.IOException;
+ method public void clear(int) throws java.io.IOException;
method public void clearWallpaperOffsets(android.os.IBinder);
method public void forgetLoadedWallpaper();
method public android.graphics.drawable.Drawable getBuiltInDrawable();
diff --git a/core/java/android/app/WallpaperManager.java b/core/java/android/app/WallpaperManager.java
index 4d8d96b0..6bc03f7 100644
--- a/core/java/android/app/WallpaperManager.java
+++ b/core/java/android/app/WallpaperManager.java
@@ -1433,6 +1433,25 @@
}
/**
+ * Remove one or more currently set wallpapers, reverting to the system default
+ * display for each one. If {@link #FLAG_SET_SYSTEM} is set in the {@code which}
+ * parameter, the intent {@link Intent#ACTION_WALLPAPER_CHANGED} will be broadcast
+ * upon success.
+ *
+ * @param which A bitwise combination of {@link #FLAG_SET_SYSTEM} or
+ * {@link #FLAG_SET_LOCK}
+ * @throws IOException If an error occurs reverting to the built-in wallpaper.
+ */
+ public void clear(int which) throws IOException {
+ if ((which & FLAG_SET_SYSTEM) != 0) {
+ clear();
+ }
+ if ((which & FLAG_SET_LOCK) != 0) {
+ clearWallpaper(FLAG_SET_LOCK, mContext.getUserId());
+ }
+ }
+
+ /**
* Open stream representing the default static image wallpaper.
*
* @hide
diff --git a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
index ba0d340..a0a971a 100644
--- a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
+++ b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
@@ -882,6 +882,9 @@
wallpaper = mLockWallpaperMap.get(userId);
if (wallpaper == null) {
// It's already gone; we're done.
+ if (DEBUG) {
+ Slog.i(TAG, "Lock wallpaper already cleared");
+ }
return;
}
} else {
@@ -902,14 +905,19 @@
wallpaper.wallpaperFile.delete();
wallpaper.cropFile.delete();
if (which == FLAG_SET_LOCK) {
+ mLockWallpaperMap.remove(userId);
final IWallpaperManagerCallback cb = mKeyguardListener;
if (cb != null) {
+ if (DEBUG) {
+ Slog.i(TAG, "Notifying keyguard of lock wallpaper clear");
+ }
try {
cb.onWallpaperChanged();
} catch (RemoteException e) {
// Oh well it went away; no big deal
}
}
+ saveSettingsLocked(userId);
return;
}
}