显示 DialogFragment 的应用在旋转后崩溃
App showing DialogFragment crashes after rotation
当我在显示 DialogFragment 的同时旋转我的设备时，我的应用程序崩溃了：
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)
那是我的 DialogFragment：
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 "Can not perform this action after onSaveInstanceState"。但是我不知道 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。
知道出了什么问题吗？
编辑：
我的 DialogFragment 是在主 activity 中创建的，如下所示：
void showActionsDialog() {
actionsDialog = new ActionsDialogFragment();
actionsDialog.show(getSupportFragmentManager(), "ActionsDialogFragment");
}
编辑 2：
以防万一它很重要。这是我的主要 activity 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：Whosebug 的许多人说你应该在 DialogFragment 中使用 onCreateDialog 或 onCreateView。也许那是我的问题。但是，如果我删除 onCreateDialog 和 dialog 变量，则关闭不再起作用。到目前为止，我正在使用这个解决方案：Cannot get DialogFragment to dismiss programatically（只是为了关闭对话框，但在旋转时崩溃）
我认为问题在于 onDestroy 调用父级 activity 上的片段事务提交，这不能在调用 onSavedInstance 之后完成，而这是在 onDestroy 之前完成的。你真的需要关闭 onDestroy() 吗？？
你得到 Leaked Window 异常，因为 Alert dialog 是 运行 而你的 activity 被销毁了。你应该在 activity 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();
}
同样在您的 setOnItemClickListener 中先关闭对话框
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();
}
});
同时我尝试了很多东西。我将 ActionsDialogFragment 更改为看起来更像 this tutorial。
但我认为真正的错误在于我的习惯 ListAdapter。我改变了这部分
public @NonNull View getView(int position, View view, @NonNull ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater(null);
至
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(); 关闭 DialogFragment 并且应用程序在旋转后不会再崩溃。
所以我应该在我的问题中发布完整的 class。无论如何感谢您的帮助！
当我在显示 DialogFragment 的同时旋转我的设备时，我的应用程序崩溃了：
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)
那是我的 DialogFragment：
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 "Can not perform this action after onSaveInstanceState"。但是我不知道 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。
知道出了什么问题吗？
编辑：
我的 DialogFragment 是在主 activity 中创建的，如下所示：
void showActionsDialog() {
actionsDialog = new ActionsDialogFragment();
actionsDialog.show(getSupportFragmentManager(), "ActionsDialogFragment");
}
编辑 2：
以防万一它很重要。这是我的主要 activity 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：Whosebug 的许多人说你应该在 DialogFragment 中使用 onCreateDialog 或 onCreateView。也许那是我的问题。但是，如果我删除 onCreateDialog 和 dialog 变量，则关闭不再起作用。到目前为止，我正在使用这个解决方案：Cannot get DialogFragment to dismiss programatically（只是为了关闭对话框，但在旋转时崩溃）
我认为问题在于 onDestroy 调用父级 activity 上的片段事务提交，这不能在调用 onSavedInstance 之后完成，而这是在 onDestroy 之前完成的。你真的需要关闭 onDestroy() 吗？？
你得到 Leaked Window 异常，因为 Alert dialog 是 运行 而你的 activity 被销毁了。你应该在 activity 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();
}
同样在您的 setOnItemClickListener 中先关闭对话框
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();
}
});
同时我尝试了很多东西。我将 ActionsDialogFragment 更改为看起来更像 this tutorial。
但我认为真正的错误在于我的习惯 ListAdapter。我改变了这部分
public @NonNull View getView(int position, View view, @NonNull ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater(null);
至
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(); 关闭 DialogFragment 并且应用程序在旋转后不会再崩溃。
所以我应该在我的问题中发布完整的 class。无论如何感谢您的帮助！