Android软键盘监听

this.getWindow().getDecorView().getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                Rect rect = new Rect();
                OuterAudioActivity.this.getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);
                int displayHight = rect.bottom - rect.top;
                int height = OuterAudioActivity.this.getWindow().getDecorView().getHeight();
                Log.i("onInputLayoutChangeListener", "addOnGlobalLayoutListener,RectHeight:" + displayHight + ",DecorViewHeigt:" + height);
                //displayHight == height则表示输入法隐藏
                if(displayHight == height){
                    Log.i("onInputLayoutChangeListener", "addOnGlobalLayoutListener,state:" + (displayHight == height));        
                }
            }
        });