Can I make a "layer"

Is there any way to create a view above all the others,so when this view is visible, I cannot interact with other views except this one. 开发者_开发知识库Sounds like a lock screen.And yeah,that's what I really want to achieve. Any suggestion?

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Use a RelativeLayout which fills parent both in width and height. Let this layout have a child view which could be any view.

Put the view on top and set a onTouchlistener.

 view.bringToFront();
 view.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                return true;
            }

        });

That is, have a touch listener that takes all touch events and consumes them (return true).

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Use RelativeLayout and ViewGroup.bringChildToFront for the View you want to be above all others.

When adding element to RelativeLayout set layout_height and layout_width to 'match_parent'