Android - How can I make my system overlay window have the same dimension on different screens

Question

I made a system overlay window that always stays on top of other apps. The width of the screen is 'MATCH_PARENT' and I want from the height to cover a certain area of the screen but my problem is that the height won't be same on different screens.

Here is my code:

WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                WindowManager.LayoutParams.MATCH_PARENT,
                1500,
                WindowManager.LayoutParams.TYPE_PHONE,
                WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN |
                        WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
                PixelFormat.TRANSPARENT);

How can can I make that 1500p be the same on different screens? Thanks.

What about using getResources().getDisplayMetrics().heightPixels to get screenHeight? — tiny sunlight, Jan 01 '16 at 14:04
Replace 1500 with getResources().getDisplayMetrics().heightPixels. — tiny sunlight, Jan 01 '16 at 14:39
Just tried but it covers the whole screen, I just want to cover most of it. Any other options? — Sruda, Jan 01 '16 at 14:47
(int)(getResources().getDisplayMetrics().heightPixels* 0.8f) You can adjust it to fit your need. — tiny sunlight, Jan 01 '16 at 15:37
It's an imageView that needs a height of 1500 (approximately) to be fully displayed. — Sruda, Jan 01 '16 at 16:53
I don't understand that system overlay window that always stays on top of other apps.What's the meaning? — tiny sunlight, Jan 01 '16 at 17:07
It's a window remains on the top of every app as a service you can have have transparent or in another color. Sorry I'm not good at explaining. Here is the refence if you want to know more [Link](http://stackoverflow.com/questions/4481226/creating-a-system-overlay-window-always-on-top) — Sruda, Jan 01 '16 at 17:20
Why do you need 1500px? A image can be showed in any size. A phone usually has a height of 2000px.Do you want to cover all the screen?If you want to cover half of screen,just use (int)(getResources().getDisplayMetrics().heightPixels* 0.5f). — tiny sunlight, Jan 01 '16 at 18:00
Sorry I was mistaken for something else, I ended up setting to 0.86 and it fits perfectly. Anyways, I appreciate your help, it was really helpful! — Sruda, Jan 02 '16 at 00:14

Grace Coder · Answer 1 · 2016-01-01T15:34:45.027

0

Try to create a dimension resource dimens.xml files with the window height dimension:

<dimen name="window_height">1500dp</dimen>

Then assign the dimension to the window height by calling the getRecources().getDimension() from the context like so:

int height = context.getResources().getDimension(R.dimen.window_height);
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
            WindowManager.LayoutParams.MATCH_PARENT,
            height,
            WindowManager.LayoutParams.TYPE_PHONE,
            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN |
                    WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
            PixelFormat.TRANSPARENT);

edited Jan 01 '16 at 15:34

answered Jan 01 '16 at 15:18

Grace Coder

784
10
13

Just tried it but the gradle-build sends " Error:(5, 5) String types not allowed (at 'window_height' with value '1500p')." how can get past this? – Sruda Jan 01 '16 at 15:32
Unfortunately it didn't work, it covers the whole screen. I even got context error in "context.getResouces()..." so I changed it to " (int) getResouces()...". can that be the reason? – Sruda Jan 01 '16 at 15:54
1

Feel free to reduce the dimension to smaller value such as 300dp and try again and adjust it until the value you wanted. If your window is an Activity then can leave out the context just `(int) getResouces()...` will do – Grace Coder Jan 01 '16 at 16:00
I ended up using @tiny sunlight's suggestion it, it was the one I was in need of. But thanks for the help, I appreciate it! – Sruda Jan 02 '16 at 00:21

score 0 · Accepted Answer · answered Jan 02 '16 at 00:26

0

My problem was solved by tiny sunlight:

(int)(getResources().getDisplayMetrics().heightPixels* 0.8f)

you have to replace the desired dimensions parameter with this and adjust the 0,8F to the desired measurements.

answered Jan 02 '16 at 00:26

Sruda

53
7

Android - How can I make my system overlay window have the same dimension on different screens

2 Answers2