DialogFragment 不显示自定义布局

Question

I have a DialogFragment with a custom layout. Everything shows properly when the fragment is embedded in my activity using a FragmentTransaction, like so:

        getSupportFragmentManager()
        .beginTransaction()
        .add(
            R.id.fragment_container,
            exampleDialogFragment,
            ExampleDialogFragment.TAG)
        .commit();

but when I do:

        exampleDialogFragment.show(getSupportFragmentManager(), exampleDialogFragment.TAG);

the dialog only shows the 'Cancel' button. The stuff in the custom layout doesn't appear.

This is what my ExampleDialogFragment class looks like:

public class ExampleDialogFragment extends DialogFragment {

    @Override
    public View onCreateView(
     @NonNull LayoutInflater layoutInflater,
     @Nullable ViewGroup viewGroup,
     @Nullable Bundle bundle) {
          // Inflate layout and init views
  }

This documentation https://developer.android.com/guide/topics/ui/dialogs#FullscreenDialog seems to imply that we don't need to override onCreateDialog , so I'm not doing that. However, it still doesn't look right. Am I missing something?

Answer 1

For anyone looking at this, my dialog had an outer ConstraintLayout. Changing it to a RelativeLayout fixed the issue.