设置Android设备息屏后WIFI不休眠

int wifiSleepPolicy=0;

   wifiSleepPolicy=Settings.System.getInt(getContentResolver(),

                     android.provider.Settings.System.WIFI_SLEEP_POLICY,

                     Settings.System.WIFI_SLEEP_POLICY_DEFAULT);

   System.out.println( "---> 修改前的Wifi休眠策略值 WIFI_SLEEP_POLICY=" +wifiSleepPolicy);

   

   

   Settings.System.putInt(getContentResolver(),

             android.provider.Settings.System.WIFI_SLEEP_POLICY,

             Settings.System.WIFI_SLEEP_POLICY_NEVER);

 

 

https://blog.csdn.net/weixin_34887221/article/details/117473066