Wifi锁住节省电

在使用wifi时要注意节省电量 不然会处在空闲太

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WifiManager wifimanager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);?
WifiLock lock = wifimanager.createWifiLock("my_lock");?
?
lock.acquire();?
?
// your code here?
?
lock.release();?