android 键盘遮挡 父布局上滚解决

 private void controlKeyboardLayout(final View root, final View scrollToView) {

        root.getViewTreeObserver().addOnGlobalLayoutListener( new OnGlobalLayoutListener() {

            @Override

            public void onGlobalLayout() {

                Rect rect = new Rect();

                //获取root在窗体的可视区域

                root.getWindowVisibleDisplayFrame(rect);

                //获取root在窗体的不可视区域高度(被其他View遮挡的区域高度)

                int rootInvisibleHeight = root.getRootView().getHeight() - rect.bottom;

                //若不可视区域高度大于100，则键盘显示

                if (rootInvisibleHeight > ) {

                    int[] location = new int[2];

                    //获取scrollToView在窗体的坐标

                    scrollToView.getLocationInWindow(location);

                    //计算root滚动高度，使scrollToView在可见区域

                    int srollHeight = (location[1] + scrollToView.getHeight()) - rect.bottom;

                    root.scrollTo(0, srollHeight);

                } else {

                    //键盘隐藏

                    root.scrollTo(0, 0);

                }

            }

        });

    }