StackOverflowError when trying to inflate a custom layout for an AlertDialog inside a DialogFragment

问题

I'm trying to create an AlertDialog, by using the Builder and setting a custom view. When I try to inflate the view inside of onCreateDialog, I get a StackOverflowError..

Here is the code up to the point where it loops back to onCreateDialog:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState){
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setTitle(R.string.enter_time);

    LinearLayout outerLayout = (LinearLayout) getLayoutInflater(savedInstanceState)
            .inflate(R.layout.time_entry_dialog, null);
    ...
}

And here is the LogCat output:

02-28 22:30:04.220: E/AndroidRuntime(4250): FATAL EXCEPTION: main
02-28 22:30:04.220: E/AndroidRuntime(4250): java.lang.StackOverflowError
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.app.Activity.getSystemService(Activity.java:4009)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.view.LayoutInflater.from(LayoutInflater.java:210)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.view.ContextThemeWrapper.getSystemService(ContextThemeWrapper.java:75)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at com.android.internal.app.AlertController$AlertParams.<init>(AlertController.java:812)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.app.AlertDialog$Builder.<init>(AlertDialog.java:374)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.app.AlertDialog$Builder.<init>(AlertDialog.java:359)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at com.sweatyreptile.chee.runtimetracker.TimeEntryDialogFragment.onCreateDialog(TimeEntryDialogFragment.java:18)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.support.v4.app.DialogFragment.getLayoutInflater(DialogFragment.java:295)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at com.sweatyreptile.chee.runtimetracker.TimeEntryDialogFragment.onCreateDialog(TimeEntryDialogFragment.java:21)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.support.v4.app.DialogFragment.getLayoutInflater(DialogFragment.java:295)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at com.sweatyreptile.chee.runtimetracker.TimeEntryDialogFragment.onCreateDialog(TimeEntryDialogFragment.java:21)
02-28 22:30:04.220: E/AndroidRuntime(4250):     at android.support.v4.app.DialogFragment.getLayoutInflater(DialogFragment.java:295)
...etc

EDIT: I found this line in the source of DialogFragment.getLayoutInflater():

mDialog = onCreateDialog(savedInstanceState);

So.. if I can't get a LayoutInflator inside of onCreateDialog without causing infinite recursion, how do I inflate a view for a custom AlertDialog?

回答1:

If found the problem. DialogFragment.getLayoutInflater() contains a call to onCreateDialog(), so calling onCreateDialog() from within getLayoutInflater() creates an infinite loop.

I found the solution in this answer: https://stackoverflow.com/a/10585164/2020340

I'm not exactly sure if this is good form, because it doesn't really seem like it, but I replaced

getLayoutInflater(savedInstanceState)

with

getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);

Edit: They are the same. See this answer for details: https://stackoverflow.com/a/20995083/2020340

来源：https://stackoverflow.com/questions/15151783/stackoverflowerror-when-trying-to-inflate-a-custom-layout-for-an-alertdialog-ins