Android PopupWindow: White background but keep shadow?

Question

How do I style my PopupWindow in Android with a white background but still keep the shadow? I am trying to create something like [this][1]:

By default, my PopupWindow has a dark background. So I set the popup window's contents to have a white background which gives me this:

White content background

Which has a shadow but still has the black "border" which really is just the uncovered parts of the popup window background.

So I try and set the popup window background to white with:

popupWindow.setBackgroundDrawable(new ColorDrawable(Color.WHITE))

which causes this:

which gives the correct background colour but also removes the shadow.

So is there any easy way to keep the shadow but set the background as white. Is there something else I should use instead of PopupWindow to create what I want? Or do I have to use a 9 patch or something?

Prior to API 21, yes you have to use a 9-patch. Starting in API 21, popup windows have a default elevation that provides a shadow. — alanv, Mar 25 '15 at 20:08

score 13 · Answer 1 · answered Mar 27 '15 at 01:24

13

I just ended up using a 9 patch created with http://inloop.github.io/shadow4android/

answered Mar 27 '15 at 01:24

s89aduasda

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score 4 · Answer 2 · edited Feb 15 '17 at 03:50

4

after set background,just add elevation.

popupWindow.setElevation(10);

this will work after API21.

edited Feb 15 '17 at 03:50

wogsland

9,106
19
57
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answered Feb 15 '17 at 03:25

fabelYu

41
1

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { popupWindow.setElevation(100); } – Mahbub May 23 '19 at 09:49
But how to do it for less than API 19 – DIRTY DAVE Jan 13 '20 at 05:10

score 3 · Answer 3 · answered Mar 26 '18 at 00:53

3

If nothing works, you can use below code. This will place a shadow around Popupwindow with white background. I've tested it in my app.

popupWindow.setBackgroundDrawable(context.getDrawable(android.R.drawable.picture_frame));

answered Mar 26 '18 at 00:53

KrzyShzy

156
7

Android PopupWindow: White background but keep shadow?

3 Answers3