得到屏幕分辨率

1 private void updateResolutionInfo(){
2     DisplayMetrics metrics = new DisplayMetrics();
3     getWindowManager().getDefaultDisplay().getMetrics(metrics);
4     mResolution.setSummary(metrics.widthPixels+ "X" + metrics.heightPixels
5             +"   " + metrics.densityDpi+ "dpi");
6 }