获取控件的高度

ViewTreeObserver vto = main_item_module_gridView.getViewTreeObserver();vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {    @Override    public void onGlobalLayout() {        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {            main_item_module_gridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);        } else {            main_item_module_gridView.getViewTreeObserver().removeGlobalOnLayoutListener(this);        }       int height = main_item_module_gridView.getHeight();    }});