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-rw-r--r--core/java/android/app/IWallpaperManager.aidl2
-rw-r--r--core/java/android/app/WallpaperManager.java59
2 files changed, 38 insertions, 23 deletions
diff --git a/core/java/android/app/IWallpaperManager.aidl b/core/java/android/app/IWallpaperManager.aidl
index a42aed6fe28a..a0762b94a040 100644
--- a/core/java/android/app/IWallpaperManager.aidl
+++ b/core/java/android/app/IWallpaperManager.aidl
@@ -123,7 +123,7 @@ interface IWallpaperManager {
/**
* Check whether setting of wallpapers are allowed for the calling user.
*/
- boolean isWallpaperSettingAllowed(in String callingPackage);
+ boolean isSetWallpaperAllowed(in String callingPackage);
/*
* Backup: is the current system wallpaper image eligible for off-device backup?
diff --git a/core/java/android/app/WallpaperManager.java b/core/java/android/app/WallpaperManager.java
index 2b82929debe0..18f93cd4688a 100644
--- a/core/java/android/app/WallpaperManager.java
+++ b/core/java/android/app/WallpaperManager.java
@@ -43,6 +43,7 @@ import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
+import android.os.DeadSystemException;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
@@ -76,7 +77,7 @@ import java.util.concurrent.TimeUnit;
*
* <p> An app can check whether wallpapers are supported for the current user, by calling
* {@link #isWallpaperSupported()}, and whether setting of wallpapers is allowed, by calling
- * {@link #isWallpaperSettingAllowed()}.
+ * {@link #isSetWallpaperAllowed()}.
*/
public class WallpaperManager {
private static String TAG = "WallpaperManager";
@@ -483,7 +484,7 @@ public class WallpaperManager {
float horizontalAlignment, float verticalAlignment, @SetWallpaperFlags int which) {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return null;
+ throw new RuntimeException(new DeadSystemException());
}
if (which != FLAG_SYSTEM && which != FLAG_LOCK) {
@@ -750,7 +751,7 @@ public class WallpaperManager {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return null;
+ throw new RuntimeException(new DeadSystemException());
} else {
try {
Bundle outParams = new Bundle();
@@ -780,7 +781,7 @@ public class WallpaperManager {
try {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return null;
+ throw new RuntimeException(new DeadSystemException());
} else {
return sGlobals.mService.getWallpaperInfo();
}
@@ -793,6 +794,10 @@ public class WallpaperManager {
* Get the ID of the current wallpaper of the given kind. If there is no
* such wallpaper configured, returns a negative number.
*
+ * <p>Every time the wallpaper image is set, a new ID is assigned to it.
+ * This method allows the caller to determine whether the wallpaper imagery
+ * has changed, regardless of how that change happened.
+ *
* @param which The wallpaper whose ID is to be returned. Must be a single
* defined kind of wallpaper, either {@link #FLAG_SYSTEM} or
* {@link #FLAG_LOCK}.
@@ -812,7 +817,7 @@ public class WallpaperManager {
try {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return -1;
+ throw new RuntimeException(new DeadSystemException());
} else {
return sGlobals.mService.getWallpaperIdForUser(which, userId);
}
@@ -914,7 +919,7 @@ public class WallpaperManager {
throws IOException {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return 0;
+ throw new RuntimeException(new DeadSystemException());
}
final Bundle result = new Bundle();
final WallpaperSetCompletion completion = new WallpaperSetCompletion();
@@ -1027,7 +1032,7 @@ public class WallpaperManager {
validateRect(visibleCropHint);
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return 0;
+ throw new RuntimeException(new DeadSystemException());
}
final Bundle result = new Bundle();
final WallpaperSetCompletion completion = new WallpaperSetCompletion();
@@ -1073,7 +1078,8 @@ public class WallpaperManager {
* <p>This method requires the caller to hold the permission
* {@link android.Manifest.permission#SET_WALLPAPER}.
*
- * @param bitmapData A stream containing the raw data to install as a wallpaper.
+ * @param bitmapData A stream containing the raw data to install as a wallpaper. This
+ * data can be in any format handled by {@link BitmapRegionDecoder}.
*
* @throws IOException If an error occurs when attempting to set the wallpaper
* based on the provided image data.
@@ -1103,13 +1109,17 @@ public class WallpaperManager {
* <p>This method requires the caller to hold the permission
* {@link android.Manifest.permission#SET_WALLPAPER}.
*
- * @param bitmapData A stream containing the raw data to install as a wallpaper.
+ * @param bitmapData A stream containing the raw data to install as a wallpaper. This
+ * data can be in any format handled by {@link BitmapRegionDecoder}.
* @param visibleCropHint The rectangular subregion of the streamed image that should be
* displayed as wallpaper. Passing {@code null} for this parameter means that
* the full image should be displayed if possible given the image's and device's
* aspect ratios, etc.
* @param allowBackup {@code true} if the OS is permitted to back up this wallpaper
* image for restore to a future device; {@code false} otherwise.
+ * @return An integer ID assigned to the newly active wallpaper; or zero on failure.
+ *
+ * @see #getWallpaperId(int)
*
* @throws IOException If an error occurs when attempting to set the wallpaper
* based on the provided image data.
@@ -1125,7 +1135,8 @@ public class WallpaperManager {
* Version of {@link #setStream(InputStream, Rect, boolean)} that allows the caller
* to specify which of the supported wallpaper categories to set.
*
- * @param bitmapData A stream containing the raw data to install as a wallpaper.
+ * @param bitmapData A stream containing the raw data to install as a wallpaper. This
+ * data can be in any format handled by {@link BitmapRegionDecoder}.
* @param visibleCropHint The rectangular subregion of the streamed image that should be
* displayed as wallpaper. Passing {@code null} for this parameter means that
* the full image should be displayed if possible given the image's and device's
@@ -1133,7 +1144,9 @@ public class WallpaperManager {
* @param allowBackup {@code true} if the OS is permitted to back up this wallpaper
* image for restore to a future device; {@code false} otherwise.
* @param which Flags indicating which wallpaper(s) to configure with the new imagery.
+ * @return An integer ID assigned to the newly active wallpaper; or zero on failure.
*
+ * @see #getWallpaperId(int)
* @see #FLAG_LOCK
* @see #FLAG_SYSTEM
*
@@ -1145,7 +1158,7 @@ public class WallpaperManager {
validateRect(visibleCropHint);
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return 0;
+ throw new RuntimeException(new DeadSystemException());
}
final Bundle result = new Bundle();
final WallpaperSetCompletion completion = new WallpaperSetCompletion();
@@ -1179,7 +1192,7 @@ public class WallpaperManager {
public boolean hasResourceWallpaper(@RawRes int resid) {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return false;
+ throw new RuntimeException(new DeadSystemException());
}
try {
Resources resources = mContext.getResources();
@@ -1207,7 +1220,7 @@ public class WallpaperManager {
public int getDesiredMinimumWidth() {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return 0;
+ throw new RuntimeException(new DeadSystemException());
}
try {
return sGlobals.mService.getWidthHint();
@@ -1233,7 +1246,7 @@ public class WallpaperManager {
public int getDesiredMinimumHeight() {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return 0;
+ throw new RuntimeException(new DeadSystemException());
}
try {
return sGlobals.mService.getHeightHint();
@@ -1294,6 +1307,7 @@ public class WallpaperManager {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
+ throw new RuntimeException(new DeadSystemException());
} else {
sGlobals.mService.setDimensionHints(minimumWidth, minimumHeight,
mContext.getOpPackageName());
@@ -1316,6 +1330,7 @@ public class WallpaperManager {
try {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
+ throw new RuntimeException(new DeadSystemException());
} else {
sGlobals.mService.setDisplayPadding(padding, mContext.getOpPackageName());
}
@@ -1365,7 +1380,7 @@ public class WallpaperManager {
public void clearWallpaper(@SetWallpaperFlags int which, int userId) {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return;
+ throw new RuntimeException(new DeadSystemException());
}
try {
sGlobals.mService.clearWallpaper(mContext.getOpPackageName(), which, userId);
@@ -1386,7 +1401,7 @@ public class WallpaperManager {
public boolean setWallpaperComponent(ComponentName name) {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return false;
+ throw new RuntimeException(new DeadSystemException());
}
try {
sGlobals.mService.setWallpaperComponentChecked(name, mContext.getOpPackageName());
@@ -1466,6 +1481,7 @@ public class WallpaperManager {
public boolean isWallpaperSupported() {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
+ throw new RuntimeException(new DeadSystemException());
} else {
try {
return sGlobals.mService.isWallpaperSupported(mContext.getOpPackageName());
@@ -1473,7 +1489,6 @@ public class WallpaperManager {
throw e.rethrowFromSystemServer();
}
}
- return false;
}
/**
@@ -1483,17 +1498,17 @@ public class WallpaperManager {
*
* @see android.os.UserManager#DISALLOW_SET_WALLPAPER
*/
- public boolean isWallpaperSettingAllowed() {
+ public boolean isSetWallpaperAllowed() {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
+ throw new RuntimeException(new DeadSystemException());
} else {
try {
- return sGlobals.mService.isWallpaperSettingAllowed(mContext.getOpPackageName());
+ return sGlobals.mService.isSetWallpaperAllowed(mContext.getOpPackageName());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
- return false;
}
/**
@@ -1621,7 +1636,7 @@ public class WallpaperManager {
public boolean setLockWallpaperCallback(IWallpaperManagerCallback callback) {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return false;
+ throw new RuntimeException(new DeadSystemException());
}
try {
@@ -1640,7 +1655,7 @@ public class WallpaperManager {
public boolean isWallpaperBackupEligible() {
if (sGlobals.mService == null) {
Log.w(TAG, "WallpaperService not running");
- return false;
+ throw new RuntimeException(new DeadSystemException());
}
try {
return sGlobals.mService.isWallpaperBackupEligible(mContext.getUserId());
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-06 01:29:10 +0000