DialogFragment with clear background (not dimmed)

Question

I'm trying to get the background of a DialogFragment to be completely clear.

With setting the style item android:windowIsFloating to true (the default), the DialogFragment displays exactly how I want it to, but has a very dimmed background.

By setting android:windowIsFloating to false, I get the clear background I want, but the DialogFragment blows up to about 95% of the screen, leaving only a tiny gap around it where you can see through to the view it overlays.

I've tried ton's of tweaks and cannot seem to override this behavior.

Do I need to use a PopupWindow to achieve the desired effects, or are there some style items that I can override ?

I just came across the LayoutParameter flag WindowManager.LayoutParams.FLAG_DIM_BEHIND. Hopefully this will do it... — samus, Dec 11 '12 at 15:44

score 85 · Accepted Answer · answered Jul 27 '13 at 18:14

85

What works for me is to adjust the WinowManager.LayoutParams in onStart() of the DialogFragment:

@Override public void onStart() {
    super.onStart();

    Window window = getDialog().getWindow();
    WindowManager.LayoutParams windowParams = window.getAttributes();
    windowParams.dimAmount = 0.90f;
    windowParams.flags |= WindowManager.LayoutParams.FLAG_DIM_BEHIND;
    window.setAttributes(windowParams);
}

answered Jul 27 '13 at 18:14

Christopher Perry

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10

+1, works for me. For **no dim at all**, use `windowParams.dimAmount = 0;`. Also, you must do this in `onStart()`, not `onCreateView()`. – Jonik Nov 29 '13 at 12:28
1

Why does it work only in `onStart()` why not in `onCreateView()`? – zIronManBox May 08 '15 at 09:57
@zIronManBox The dialog is not yet rendered/instantiated in `onCreateView()`. – samus Apr 12 '18 at 12:18
@Jonik No, you don't need to touch `windowParams.dimAmount`. Just remove `WindowManager.LayoutParams.FLAG_DIM_BEHIND` from `windowParams.flags` – fdermishin Apr 13 '18 at 10:05
this workaround is still working 2021.11.18 – CodingBruceLee Nov 18 '21 at 01:05

score 7 · Answer 2 · answered Sep 22 '16 at 10:50

Create your own Customized dialog extends with FragmentDailog and override this method

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    Dialog dialog = super.onCreateDialog(savedInstanceState);

    //set the dialog to non-modal and disable dim out fragment behind
    Window window = dialog.getWindow();
    window.setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,
            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);
    window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
    return dialog;
}

NOTE: This answer works for me in case of DialogFragment and BottomSheetDialogFragment

works for me `window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND)` — ardiien, Feb 21 '20 at 17:48

score 3 · Answer 3 · edited May 23 '17 at 11:55

3

You need to get a handle to your DialogFrament (sometime after .show is called), and do this in a Posted Runnable:

DialogFragment dialog;

...

WindowManagerLayoutParams wlp = dialog.Dialog.Window.Attributes;
wlp.Flags &= ~WindowManagerFlags.DimBehind;
dialog.Dialog.Window.Attributes = wlp;

I got it from Aleks G's answer to Changing position of the Dialog on screen android .

edited May 23 '17 at 11:55

Community

1
1

answered Dec 11 '12 at 15:48

samus

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score 1 · Answer 4 · answered Apr 10 '14 at 19:59

1

Even a simpler solution is to change the style in the onCreate of the DialogFragment:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setStyle(STYLE_NO_FRAME, getTheme());
}

answered Apr 10 '14 at 19:59

Andrey Petrov

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This removes dialog title as well – velis Nov 16 '16 at 10:00

DialogFragment with clear background (not dimmed)

4 Answers4

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