在Android中屏幕旋转防止对话框解除 [英] Prevent dialog dismissal on screen rotation in Android
问题描述
如果我重载了onConfigurationChanged方法,我可以成功地执行此操作并重新设置布局正确的方向,但我失去了edittext的粘贴文本功能。所以在解决对话框问题我创建了这个edittext问题。
如果我从edittext中保存字符串并在onCofiguration更改中重新分配它们,它们似乎默认为初始值,而不是在旋转之前输入的值。即使我迫使无效似乎更新它们。
我真的需要解决对话框问题或编辑文本问题。
感谢您的帮助。
现在避免这个问题的最好方法是使用 DialogFragment
。 p>
创建一个新的类,扩展了 DialogFragment
。覆盖 onCreateDialog
,并返回您的旧 对话框
或 AlertDialog
。
然后你可以用 DialogFragment.show(fragmentManager,tag)
。
下面是一个示例,一个 听众
:
public class MyDialogFragment extends DialogFragment {
public interface YesNoList ener {
void onYes();
void onNo();
}
@Override
public void onAttach(Activity activity){
super.onAttach(activity);
if(!(Activity instanceof YesNoListener)){
throw new ClassCastException(activity.toString()+必须实现YesNoListener);
}
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState){
return new AlertDialog.Builder(getActivity())
.setTitle(R.string.dialog_my_title)
.setMessage(R.string.dialog_my_message)
.setPositiveButton(android.R.string.yes,new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog,int which){
((YesNoListener)getActivity())。onYes();
}
})
.setNegativeButton(android.R.string.no,new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog,int which){
(( YesNoListener)getActivity())。onNo();
}
})
。创建();
}
}
在您打电话的活动中:
new MyDialogFragment()。show(getSupportFragmentManager(),tag); //或getFragmentManager()在API 11+
这个答案混合了这三个问题(和他们的答案) :
I am trying to prevent dialogs built with Alert builder from being dismissed when the Activity is restarted.
If I overload the onConfigurationChanged method I can successfully do this and reset the layout to correct orientation but I lose sticky text feature of edittext. So in solving the dialog problem I have created this edittext problem.
If I save the strings from the edittext and reassign them in the onCofiguration change they still seem to default to initial value not what was entered before rotation. Even if I force an invalidate does seem to update them.
I really need to solve either the dialog problem or the edittext problem.
Thanks for the help.
The best way to avoid this problem nowadays is by using a DialogFragment
.
Create a new class which extends DialogFragment
. Override onCreateDialog
and return your old Dialog
or an AlertDialog
.
Then you can show it with DialogFragment.show(fragmentManager, tag)
.
Here's an example with a Listener
:
public class MyDialogFragment extends DialogFragment {
public interface YesNoListener {
void onYes();
void onNo();
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
if (!(activity instanceof YesNoListener)) {
throw new ClassCastException(activity.toString() + " must implement YesNoListener");
}
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new AlertDialog.Builder(getActivity())
.setTitle(R.string.dialog_my_title)
.setMessage(R.string.dialog_my_message)
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
((YesNoListener) getActivity()).onYes();
}
})
.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
((YesNoListener) getActivity()).onNo();
}
})
.create();
}
}
And in the Activity you call:
new MyDialogFragment().show(getSupportFragmentManager(), "tag"); // or getFragmentManager() in API 11+
This answer mixes these three questions (and their answers):
- Android Best way of avoid Dialogs to dismiss after a device rotation
- Android DialogFragment vs Dialog
- How can I show a DialogFragment using compatibility package?
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