Android获取屏幕宽高

Display dp = activity.getWindowManger().getDefaultDisplay();
int screenWidth = dp.getWidth();  // (api require 13 or above)
int screenHeight = dp.getHeight();  // (api require 13 or above)

/**
* 这里还可以通过Resources.getDisplayMetrics()获取
*/
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int screenWidth = dm.widthPixels;
int screenHeight = dm.heightPixels;