android 显示DialogFragment在旋转后崩溃的应用程序

nqwrtyyt  于 2022-12-16  发布在  Android
关注(0)|答案(4)|浏览(141)

当我在显示DialogFragment时旋转设备时，我的应用崩溃：

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.myapp, PID: 27909
java.lang.RuntimeException: Unable to destroy activity {com.myapp/com.myapp.FileListActivity}: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
    at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4203)
    at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4221)
    at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4495)
    at android.app.ActivityThread.-wrap19(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1483)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6126)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
    Caused by: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
    at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1493)
    at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1511)
    at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:638)
    at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:617)
    at android.support.v4.app.DialogFragment.dismissInternal(DialogFragment.java:201)
    at android.support.v4.app.DialogFragment.dismiss(DialogFragment.java:167)
    at com.myapp.ActionsDialogFragment.onDestroy(ActionsDialogFragment.java:127)
    at android.support.v4.app.Fragment.performDestroy(Fragment.java:2202)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1196)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1234)
    at android.support.v4.app.FragmentManagerImpl.dispatchDestroy(FragmentManager.java:2083)
    at android.support.v4.app.FragmentController.dispatchDestroy(FragmentController.java:244)
    at android.support.v4.app.FragmentActivity.onDestroy(FragmentActivity.java:368)
    at android.support.v7.app.AppCompatActivity.onDestroy(AppCompatActivity.java:203)
    at com.myapp.FileListActivity.onDestroy(FileListActivity.java:1106)
    at android.app.Activity.performDestroy(Activity.java:6881)
    at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1154)
    at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4190)
    at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4221) 
    at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4495) 
    at android.app.ActivityThread.-wrap19(ActivityThread.java) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1483) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:154) 
    at android.app.ActivityThread.main(ActivityThread.java:6126) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 

这是我的对话片段：

public class ActionsDialogFragment extends DialogFragment {

    public interface ActionsDialogListener {
        void onActionSelected(DialogFragment dialog, int position);
    }

    AlertDialog dialog;
    ActionsDialogListener mListener;

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            mListener = (ActionsDialogListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement ActionsDialogListener");
        }
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        dialog = builder.create();
        return dialog;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                            Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.actions_dialog, container, false);

        CustomListAdapter cla;
        cla = new CustomListAdapter(getActivity());
        ListView list = (ListView) view.findViewById(R.id.listViewActions);
        final AlertDialog finalDialog = dialog;
        list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                mListener.onActionSelected((DialogFragment) getParentFragment(), position);
                Log.d(FileListActivity.TAG, "Dismissing dialog");
//                ActionsDialogFragment.this.dismiss();
                finalDialog.dismiss();
            }
        });
        list.setAdapter(cla);
        dialog.setView(view);
        return view;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.d(FileListActivity.TAG, "ActionDialogFragment onDestroy()");
        dismiss();
//        dialog.dismiss();
    }

    class CustomListAdapter extends ArrayAdapter<String> {
    ...
    }

}

错误显示“在onSaveInstanceState之后无法执行此操作”。但我不知道InstanceState保存在哪里。对我来说，关闭对话框并在旋转后重新创建它是可以的。
知道出什么问题了吗？
编辑：
My DialogFragment在主Activity中创建，如下所示：

void showActionsDialog() {
    actionsDialog = new ActionsDialogFragment();
    actionsDialog.show(getSupportFragmentManager(), "ActionsDialogFragment");
}

编辑2：
以防万一，这是我的主要活动的onDestroy()方法：

public void onDestroy() {
    super.onDestroy();
    Log.d(TAG, "FileListActivity onDestroy()");
    if (exifReadingDialog != null) { exifReadingDialog.dismiss(); }
    dataFragment.mRetainedCache = mMemoryCache;
    dataFragment.setData(mediaFolder);
}

编辑3：
一些额外的想法：stackoverflow的很多人说你应该在DialogFragment中使用onCreateDialog或者onCreateView，也许这就是我的问题，但是如果我删除onCreateDialog和dialog变量，dismissing就不再起作用了，到目前为止我使用的是这个解决方案：Cannot get DialogFragment to dismiss programatically（仅用于关闭对话框，但在旋转时崩溃）

android

4条答案

按热度按时间
ss2ws0br

ss2ws0br1#

我认为问题在于onDestroy调用父Activity上的Fragment事务提交，而这在调用onSavedInstance之后无法完成，并且在onDestroy之前完成。您真的需要关闭onDestroy（）吗？

赞(0）分享  回复(0）举报  2022-12-16
dphi5xsq

dphi5xsq2#

您得到泄漏窗口异常，因为Alert dialog正在运行，而您的活动被销毁。您应该在活动被销毁时关闭对话框
试试这个：

@Override
protected void onDestroy() {
    try {
        if (dialog!= null && dialog.isShowing()) {
            dialog.dismiss();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    super.onDestroy();
}

同样，在setOnItemClickListener中，请先关闭对话框

list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            if (finalDialog != null && finalDialog.isShowing()) {
                  finalDialog.dismiss();
             }
            mListener.onActionSelected((DialogFragment) getParentFragment(), position);
            Log.d(FileListActivity.TAG, "Dismissing dialog");
    //      ActionsDialogFragment.this.dismiss();
        }
    });
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ds97pgxw

ds97pgxw3#

同时我尝试了很多方法，我改变了我的ActionsDialogFragment，让它看起来更像this tutorial。
但我认为真实的的错误是在我的自定义ListAdapter中，我更改了这一部分

public @NonNull View getView(int position, View view, @NonNull ViewGroup parent) {
    LayoutInflater inflater = getLayoutInflater(null);

到

public @NonNull View getView(int position, View view, @NonNull ViewGroup parent) {
    LayoutInflater inflater = ((Activity)context).getLayoutInflater();

现在，我可以通过一个简单的dismiss();来解除DialogFragment，并且应用程序在旋转后不再崩溃。
所以我应该在我的问题中贴出完整的类。无论如何谢谢你的帮助！

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hwazgwia

hwazgwia4#

我也遇到了同样的问题。不要在onDestroy（）中忽略它。在onPause（）中执行它。我希望这能有所帮助！

@Override
public void onPause() {
    super.onPause();
    dismiss();
}
赞(0）分享  回复(0）举报  2022-12-16
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