android获取手机屏幕宽和高

 /**
  * 获取手机屏幕宽和高
  * 宽 = xy[0]
  * 高 = xy[1]
  * @return
  */
 public int[] getPhone() {
  int[] xy = new int[2];
  DisplayMetrics dm = new DisplayMetrics();
  getWindowManager().getDefaultDisplay().getMetrics(dm);
  xy[0] = dm.widthPixels;
  xy[1] = dm.heightPixels;
  return xy;
 }