Android 在OnCreate()中获取控件高度与宽度

 试过在OnCreate（）中获取控件高度与宽度的童鞋都知道，getWidth()与getHeight()方法返回是0，具体原因 看一下Activity的生命周期 就会明白。

上代码：

方法一：

 

        int w = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        int h = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        ssidtext.measure(w, h);
        int width =ssidtext.getMeasuredWidth();
        int height =ssidtext.getMeasuredHeight();

方法二：

 

        ViewTreeObserver vto = ssidtext.getViewTreeObserver();
        vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
            public boolean onPreDraw() {
                int height = ssidtext.getMeasuredHeight();
                int width = ssidtext.getMeasuredWidth();
                return true;
            }
        });
        
        
come from http://blog.csdn.net/jiangwei0910410003/article/details/16979765