本文为转载mzhjemail_新浪博客。原文地址:http://blog.sina.com.cn/s/blog_821e2bb101010yin.html
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; } }); 另外还搜索到一个方法: ----------------------------------------------------------- 先贴到这里。正在做试验。(试验完毕,这种方法得到的控件宽是正确的。)
ViewTreeObserver vto = mArrowUp.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
mArrowUp.getViewTreeObserver().removeGlobalOnLayoutListener(this);
Log.e("Width",Integer.toString(mArrowUp.getWidth()));
}
});
具体用哪一种可以根据需求自己选择