Android: change LayoutParams of View added by WindowManager

android view layoutparams
Dmitry Frank picture Dmitry Frank · Feb 20, 2012 · Viewed 8.5k times · Source

I have overlay View managed by WindowManager, just like in this question.

Briefly, it looks like this:

WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
my_view_layout_params = new WindowManager.LayoutParams(
       WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
       WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
       PixelFormat.TRANSLUCENT);

wm.addView(my_view, my_view_layout_params);

It works, but if i need to change layout params, i need to remove View and add it again, like that:

wm.removeView(my_view);
wm.addView(my_view, my_view_layout_params);

It looks not very beautiful. I tried to do my_view.setLayoutParams(my_view_layout_params), but it does not work unfortunately. How can i do it?

Answer

Reuben Scratton picture Reuben Scratton · Feb 20, 2012

WindowManager has an updateViewLayout() member... surely that's exactly what you want?

windowManager.updateViewLayout(my_view, my_view_layout_params);

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