Full Screen DialogFragment in Android

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I’m trying to show an almost fullscreen DialogFragment. But I’m somehow not able to do so.

The way I am showing the Fragment is straight from the android developer documentation

FragmentManager f = ((Activity)getContext()).getFragmentManager();
FragmentTransaction ft = f.beginTransaction();
Fragment prev = f.findFragmentByTag("dialog");
if (prev != null) {
    ft.remove(prev);
}
ft.addToBackStack(null);

// Create and show the dialog.
DialogFragment newFragment = new DetailsDialogFragment();
newFragment.show(ft, "dialog");

I know naively tried to set the RelativeLayout in the fragment to fill_parent and some minWidth and minHeight.

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"  
    android:minWidth="1000px" 
    android:minHeight="600px"
    android:background="#ff0000">

I would know expect the DialogFragment to fill the majority of the screen. But I only seems to resize vertically but only until some fixed width horizontally.

I also tried to set the Window Attributes in code, as suggested here: http://groups.google.com/group/android-developers/browse_thread/thread/f0bb813f643604ec. But this didn’t help either.

I am probably misunderstanding something about how Android handles Dialogs, as I am brand new to it. How can I do something like this? Are there any alternative ways to reach my goal?

Android Device:
Asus EeePad Transformer
Android 3.0.1

Update:
I now managed to get it into full screen, with the following code in the fragment

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setStyle(STYLE_NO_FRAME, android.R.style.Theme_Holo_Light);
}

Unfortunately, this is not quite want I want. I definitely need a small “padding” around the dialog to show the background.

Any ideas how to accomplish that?

31 Answers
31

To get DialogFragment on full screen

Override onStart of your DialogFragment like this:

@Override
public void onStart()
{
    super.onStart();
    Dialog dialog = getDialog();
    if (dialog != null)
    {
        int width = ViewGroup.LayoutParams.MATCH_PARENT;
        int height = ViewGroup.LayoutParams.MATCH_PARENT;
        dialog.getWindow().setLayout(width, height);
    }
}

And thanks very much to this post: The-mystery-of-androids-full-screen-dialog-fragments

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