Android报错 Attempted to access a cursor after it has been closed.的解决方法

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Android在读取相册图片的时候,报错如下:

08-06 12:13:14.044: ERROR/AndroidRuntime java.lang.RuntimeException: Unable to resume activity {com.ttl.ui/com.ttl.ui.ShowImgActivity}: android.database.StaleDataException: Attempted to access a cursor after it has been closed.
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2444)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2472)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1173)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.os.Looper.loop(Looper.java:137)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.app.ActivityThread.main(ActivityThread.java:4424)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at java.lang.reflect.Method.invokeNative(Native Method)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at java.lang.reflect.Method.invoke(Method.java:511)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at dalvik.system.NativeStart.main(Native Method)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496): Caused by: android.database.StaleDataException: Attempted to access a cursor after it has been closed.
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.database.BulkCursorToCursorAdaptor.throwIfCursorIsClosed(BulkCursorToCursorAdaptor.java:75)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.database.BulkCursorToCursorAdaptor.requery(BulkCursorToCursorAdaptor.java:144)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.database.CursorWrapper.requery(CursorWrapper.java:186)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.app.Activity.performRestart(Activity.java:4505)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.app.Activity.performResume(Activity.java:4531)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2434)
08-06 12:13:14.044: ERROR/AndroidRuntime(2496):     ... 10 more


通过在网上查找找到两种解决办法:

第一种将查询方法

viedoCursor = context.managedQuery(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, videoColumns,null, null, null);
只要换成这样就可以了:
ContentResolver cr = context.getContentResolver();
viedoCursor = cr.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, videoColumns,null, null, null);
我也是无意间发现有着两种写法的 然后试了一下问题就解决了


第二种,在游标关闭的时候对android sdk版本做个判断

  1.  try  
  2.             {  
  3.                 //4.0以上的版本会自动关闭 (4.0--14;; 4.0.3--15)  
  4.                 if(Integer.parseInt(Build.VERSION.SDK) < 14)  
  5.                 {  
  6.                     cursor.close();  
  7.                 }  
  8.             }catch(Exception e)  
  9.             {  
  10.                 Log.error(TAG, "error:" + e);  
  11.             }  
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