通过以下方法可以在onCreate中获取宽高
1 //------------------------------------------------方法一
2 int w = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
3 int h = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
4 imageView.measure(w, h);
5 int height =imageView.getMeasuredHeight();
6 int width =imageView.getMeasuredWidth();
7 textView.append("\n"+height+","+width);
8
9
10
11
12 //-----------------------------------------------方法二
13 ViewTreeObserver vto = imageView.getViewTreeObserver();
14 vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
15 public boolean onPreDraw() {
16 int height = imageView.getMeasuredHeight();
17 int width = imageView.getMeasuredWidth();
18 textView.append("\n"+height+","+width);
19 return true;
20 }
21 });
22 //-----------------------------------------------方法三
23 ViewTreeObserver vto2 = imageView.getViewTreeObserver();
24 vto2.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
25 @Override
26 public void onGlobalLayout() {
27 imageView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
28 textView.append("\n\n"+imageView.getHeight()+","+imageView.getWidth());
29 }
30 });
