获取到Android控件的高度

1.自己来测量

1. int w = View.MeasureSpec.makeMeasureSpec(0,  
2.                 View.MeasureSpec.UNSPECIFIED);  
3.         int h = View.MeasureSpec.makeMeasureSpec(0,  
4.                 View.MeasureSpec.UNSPECIFIED);  
5.         imageView.measure(w, h);  
6.         int height = imageView.getMeasuredHeight();  
7.         int width = imageView.getMeasuredWidth();

2.监听绘图

1. ViewTreeObserver vto = imageView.getViewTreeObserver();   
2.         vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {   
3.             public boolean onPreDraw() {   
4.                 vto.removeOnPreDrawListener(this);  
5.                 int height = imageView.getMeasuredHeight();   
6.                 int width = imageView.getMeasuredWidth();   
7.                 return true;   
8.             }   
9.         });

3.全局的布局改变监听器

1. ViewTreeObserver vto = imageView.getViewTreeObserver();     
2.         vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {   
3.             @Override     
4.             public void onGlobalLayout() {   
5.                 imageView.getViewTreeObserver().removeGlobalOnLayoutListener(this);   
6.                 imageView.getHeight();  
7.                 imageView.getWidth();  
8.             }     
9.         });