1 public void click(View view) {2         String TAG = "";3         WindowManager windowManager = getWindowManager();4         DisplayMetrics displayMetrics = new DisplayMetrics();5         windowManager.getDefaultDisplay().getMetrics(displayMetrics);6         Log.e(TAG, "width:" + displayMetrics.widthPixels);7         Log.e(TAG, "height:" + displayMetrics.heightPixels);8         Log.e(TAG, "density:" + displayMetrics.density);9     }