Question

我遇到了令人沮丧的问题。我有一个列表，它有一个适配器。我的适配器有一个ArrayList，它保存对ImageViews的引用。

我的一个片段有一个用户可以从设备目录中选择一个文件的功能。然后onActivityResult根据索引将返回的位图的缩略图设置为imageView。所以从片段我调用的东西就像adapter.getImageView（pos）.setBitmap（bm）。

问题：当用户去浏览照片库一段时间并最终选择时，我的应用程序因错误无法恢复活动而崩溃，因为索引超出了我的onActivityResult，因为它调用了getImageView（pos）

我认为发生的事情是，当用户浏览时间过长时，操作系统会回收我的应用程序并将其销毁，然后在用户返回时尝试重新创建它。奇怪的是我的适配器不是Null，只是ArrayList未初始化。另一个奇怪的事情是我尝试调试并将Log.v放在该片段的onResume（）和onActivityResult中。在这两种情况下，它似乎甚至在崩溃之前都没有进入这些方法。我很困惑......请帮忙。

这是完全例外

java.lang.RuntimeException: Unable to resume activity {com.core.somepackage/com.core.somepackage.SomeActivity}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=67536, result=-1, data=Intent { dat=content://media/external/images/media/33276 flg=0x1 }} to activity {com.core.somepackage/com.core.somepackage.SomeActivity}: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
            at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2742)
            at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2771)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2235)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5039)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=67536, result=-1, data=Intent { dat=content://media/external/images/media/33276 flg=0x1 }} to activity {com.core.somepackage/com.core.somepackage.SomeActivity}: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3319)
            at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2729)
            at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2771)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2235)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5039)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
            at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
            at java.util.ArrayList.get(ArrayList.java:304)
            at com.core.local.utils.adapters.UploadRecyclerViewAdapter.getImageView(UploadRecyclerViewAdapter.java:108)
            at com.core.main.UploadImageScreen.onActivityResult(UploadImageScreen.java:246)
            at android.support.v4.app.FragmentActivity.onActivityResult(FragmentActivity.java:165)
            at android.app.Activity.dispatchActivityResult(Activity.java:5293)
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3315)
            at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2729)
            at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2771)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2235)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5039)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)

Answer 1

之前我遇到过类似的问题，你可以试试onRestoreInstanceState和onSaveInstanceState方法。在onSaveInstanceState中，你可以保存你的数据;在onSaveInstanceState方法中，您可以获取之前保存的数据。

protected void onSaveInstanceState(Bundle outState) {  
    outState.putInt("param", param);  
    super.onSaveInstanceState(outState);  
}  

protected void onRestoreInstanceState(Bundle savedInstanceState) {  
    param = savedInstanceState.getInt("param");   
    super.onRestoreInstanceState(savedInstanceState);  
}

这些是上面的两个方法。在我的测试中，在onresume方法之前调用onRestoreInstanceState。你可以尝试这些方式，我希望这会有所帮助。

无法恢复活动IndexOutOfBoundsException：索引0无效，大小为0

1 个答案: