Android 获取View高度宽度

final ImageView iv = (ImageView) findViewById(R.id.iv_test);
iv.setImageResource(R.drawable.abc);

//等待ImageVivew加载完成
iv.post(new Runnable(){

@Override
public void run() {
// TODO Auto-generated method stub

//ImageView的宽和高
Log.d("lxy", "iv_W = " + iv.getWidth() + ", iv_H = " + iv.getHeight());

//获得ImageView中Image的真实宽高，
int dw = iv.getDrawable().getBounds().width();
int dh = iv.getDrawable().getBounds().height();
Log.d("lxy", "drawable_X = " + dw + ", drawable_Y = " + dh);

//获得ImageView中Image的变换矩阵
Matrix m = iv.getImageMatrix();
float[] values = new float[10];
m.getValues(values);

//Image在绘制过程中的变换矩阵，从中获得x和y方向的缩放系数
float sx = values[0];
float sy = values[4];
Log.d("lxy", "scale_X = " + sx + ", scale_Y = " + sy);

//计算Image在屏幕上实际绘制的宽高
int cw = (int)(dw * sx);
int ch = (int)(dh * sy);
Log.d("lxy", "caculate_W = " + cw + ", caculate_H = " + ch);
}});