DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
//获得手机的宽带和高度像素单位为px
int view_w = dm.widthPixels;
int view_h = dm.heightPixels;
System.out.println(dm.toString());
System.out.println("手机分辨率为"+view_w+"*"+view_h);