打包时报错： The WIFI_SERVICE must be looked up on the Application context or memory will leak on devic

Error: The WIFI_SERVICE must be looked up on the Application context or memory will leak on devices < Android N. Try changing ac to ac.getApplicationContext()  [WifiManagerLeak]

问题原因：

WifiManager wifi = (WifiManager) ac.getSystemService(Context.WIFI_SERVICE);

log上也说明了，在android N以上要用ac.getApplicationContext()来获取



所以解决办法也就很简单了：

WifiManager wifi = (WifiManager) ac.getApplicationContext().getSystemService(Context.WIFI_SERVICE);

改一下即可！