3

我想调用活动，用户可以在其中选择图片区域并将其设置为壁纸

我有一些问题。我的代码是：

Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_ATTACH_DATA);
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.background);
shareIntent.putExtra(Intent.EXTRA_STREAM, bitmap);
shareIntent.setType("image/jpeg");
startActivity(shareIntent);

但是当我选择设置为墙纸时，图库停止工作（Android 2.3），或者（Android 4.0）“设置为”菜单不显示。

Android 2.3 LogCat（com.cooliris.media 包中的此错误）：

12-13 16:20:27.509: E/AndroidRuntime(14414): FATAL EXCEPTION: main
12-13 16:20:27.509: E/AndroidRuntime(14414): java.lang.NullPointerException
12-13 16:20:27.509: E/AndroidRuntime(14414):    at android.app.ActivityThread.handleStopActivity(ActivityThread.java:2593)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at android.app.ActivityThread.access$1800(ActivityThread.java:123)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:953)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at android.os.Handler.dispatchMessage(Handler.java:99)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at android.os.Looper.loop(Looper.java:130)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at android.app.ActivityThread.main(ActivityThread.java:3835)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at java.lang.reflect.Method.invokeNative(Native Method)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at java.lang.reflect.Method.invoke(Method.java:507)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
12-13 16:20:27.509: E/AndroidRuntime(14414):    at dalvik.system.NativeStart.main(Native Method)
12-13 16:20:27.529: W/ActivityManager(225):   Force finishing activity com.cooliris.media/.Photographs

安卓 4.0 LogCat

12-13 11:26:44.722: E/JavaBinder(12822): !!! FAILED BINDER TRANSACTION !!!

对不起，我的英语不好。

4

0 回答 0