Java 显示DialogFragment的应用程序在旋转后崩溃
当我在显示DialogFragment时旋转设备时,我的应用程序崩溃:Java 显示DialogFragment的应用程序在旋转后崩溃,java,android,illegalstateexception,Java,Android,Illegalstateexception,当我在显示DialogFragment时旋转设备时,我的应用程序崩溃: 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
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> {
...
}
}
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:
另外一些想法:stackoverflow的许多人说,您应该在
对话框片段中使用onCreateDialog
或onCreateView
。也许这是我的问题。但是如果我删除了onCreateDialog
和dialog
变量,那么dismissing就不起作用了。到目前为止,我正在使用这个解决方案:(只是为了关闭对话框,但在旋转时崩溃)我认为问题在于onDestroy调用父活动上的片段事务提交,而这不能在调用onSavedInstance之后完成,而这是在onDestroy之前完成的。您真的需要关闭onDestroy()?您会收到泄漏的窗口异常,因为当您的活动被销毁时,警报对话框
正在运行。当活动被销毁时,您应该关闭对话框
试试这个:
@Override
protected void onDestroy() {
try {
if (dialog!= null && dialog.isShowing()) {
dialog.dismiss();
}
} catch (Exception e) {
e.printStackTrace();
}
super.onDestroy();
}
另外,在setOnItemClickListener
中,首先关闭对话框
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();
}
});
list.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父对象、视图、整型位置、长id){
if(finalDialog!=null&&finalDialog.isShowing()){
最后,请解散();
}
mListener.onActionSelected((DialogFragment)getParentFragment(),位置);
Log.d(FileListActivity.TAG,“解除对话框”);
//ActionsDialogFragment.this.disclose();
}
});
与此同时,我尝试了很多东西。我更改了我的操作DialogFragment
,使其看起来更像中的
但我认为真正的错误在于我的自定义ListAdapter
。我改变了这部分
public @NonNull View getView(int position, View view, @NonNull ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater(null);
到
现在,我可以通过一个简单的disclose()来关闭DialogFragment
代码>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发布完整的课程。无论如何,谢谢你的帮助 如果我不退出,我会得到以下错误:E/WindowManager:android.view.WindowLeaked:Activity com.myApp.FileListActivity已泄漏窗口DecorView@2b05e78[]最初添加到此处的
然后在暂停时执行,而不是在暂停时执行您的意思是在暂停时公开作废(){super.onPause();dismissAllowingStateLoss();}
在操作DialogFragment
中?同样的错误!我的代码中没有FragmentTransaction.commit()
。我在问题中添加了创建DialogFragment的函数。我已尝试更改disclose()代码>到解除AllowingStateLoss()代码>但没有成功。如果我使用您的示例代码而不是actionsDialog.show(getSupportFragmentManager(),“ActionsDialogFragment”)代码>从我的代码中,应用程序仍然会崩溃,并出现类似错误:java.lang.RuntimeException:无法销毁活动{com.myApp/com.myApp.FileListActivity}:java.lang.IllegalStateException:活动已销毁
。我已经尝试过了(与以前尝试过的几乎相同),它给出了我上一次评论中的错误。我想问题是现在我的ActionsDialogFragment
在其onDestroy()
方法中被忽略了。如果我删除dismissAllowingStateLoss()代码>,我从对FrankMonza回答的评论中得到错误(“活动已泄露窗口”)。感谢您的编辑。我改变了我的代码,但我仍然得到那个错误。
public @NonNull View getView(int position, View view, @NonNull ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater(null);
public @NonNull View getView(int position, View view, @NonNull ViewGroup parent) {
LayoutInflater inflater = ((Activity)context).getLayoutInflater();