Android- 获取View宽高度的三种方式

getViewSize.java

    public static void getViewSize1(View view) {

        int width = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);

        int height = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);

        view.measure(width, height);

        int height1 = view.getMeasuredHeight();

        int width1 = view.getMeasuredWidth();
    }


    public static void getViewSize2(final View view) {
        //增加组件绘制之前的监听
        ViewTreeObserver vto = view.getViewTreeObserver();

        vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
            @Override
            public boolean onPreDraw() {
                int height = view.getMeasuredHeight();
                int width = view.getMeasuredWidth();
            }
        });
    }



    public static void getViewSize3(final View view) {

        //增加整体布局监听
        ViewTreeObserver vto = view.getViewTreeObserver();
        vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                view.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                int height = view.getMeasuredHeight();
                int width = view.getMeasuredWidth();
            }
        });
    }