Android读取相册时报错：Attempted to access a cursor after it has been closed.

在项目中，有选择照片作为头像的功能。

所以代码中有

Cursor cursor = managedQuery(photoUri, pojo, null, null,null);

这种体现。

然后随之也把cursor close掉了

但是在按HOME键后， 却报错了

04-15 16:31:29.401: E/AndroidRuntime(6193): java.lang.RuntimeException: Unable to resume activity {com.carnet.hyc/com.carnet.hyc.activitys.MyProfileActivity}: android.database.StaleDataException: Attempted to access a cursor after it has been closed.
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2997)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3026)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1382)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.os.Handler.dispatchMessage(Handler.java:110)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.os.Looper.loop(Looper.java:193)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.app.ActivityThread.main(ActivityThread.java:5332)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at java.lang.reflect.Method.invokeNative(Native Method)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at java.lang.reflect.Method.invoke(Method.java:515)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at dalvik.system.NativeStart.main(Native Method)
04-15 16:31:29.401: E/AndroidRuntime(6193): Caused by: android.database.StaleDataException: Attempted to access a cursor after it has been closed.
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.database.BulkCursorToCursorAdaptor.throwIfCursorIsClosed(BulkCursorToCursorAdaptor.java:64)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.database.BulkCursorToCursorAdaptor.requery(BulkCursorToCursorAdaptor.java:133)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.database.CursorWrapper.requery(CursorWrapper.java:186)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.app.Activity.performRestart(Activity.java:5425)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.app.Activity.performResume(Activity.java:5451)
04-15 16:31:29.401: E/AndroidRuntime(6193):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2983)
04-15 16:31:29.401: E/AndroidRuntime(6193):     ... 10 more

这是因为 代码中使用了Context.managedQuery()，所以要有cursor.close, 但是在android 4.0以上的版本中，并不需要我们手动调用cursor.close()来关闭cursor， 系统会自动调用。 所以报出如上异常。

解决方式： 添加判断， 如果android版本小于4.0，则手动关闭， 大于4.0 就不用管，由系统关闭。

if(VERSION.SDK_INT < 14) {
cursor.close();
}