Android-->ViewTreeObserver

/* * 通过这种方法获取image控件当前在手机里面显示出来的高度和宽度 ，也可以用来试试其他view*/
        ViewTreeObserver vto = image.getViewTreeObserver();
        vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

            public void onGlobalLayout() {

                if (firstFlag == true) {
                    firstFlag = false;
                    imageOriginalHeight = image.getMeasuredHeight();
                    imageOriginalWidth = image.getMeasuredWidth();
                    System.out.println("imageHeight=" + imageOriginalHeight
                            + "  imageWidth==" + imageOriginalWidth);
                }
            }
        });