Recently, I've been trying to get native MAC addresses from the NDK with C + + on Android, but with the IOCTL (SIOCGIFHWADDR), the return value is less than 0, which means that the interface information is not available. At first I thought it was my own missing access rights, so I have been increasing uses-permission, and later found that no matter how this is the case, found that the original Android studio virtual machine did not turn on wifi caused
WORKAROUND: Shorten the response time;Specific methods:Path: Frameworks/base/services/java/com/android/server/wifi/wificontroller.javaCode: Class Wificontroller extends StateMachine {* Being enabled but not active exceeds the battery drain caused by* Re-establishing a connection to the mobile data network.*/-Private static final Long Default_idle_ms = 15 * 60 * 1000; /* minutes */+ private static final Long Default_idle_ms = 1 * 60 * 1000; /* 1 minute
Note: To register the right to turn WiFi on and off first, Mainactivity.java Package Com.wyl.wifi;import Android.content.context;import Android.database.sqlite.sqliteopenhelper;import Android.net.wifi.wifimanager;import Android.os.bundle;import Android.support.v7.app.actionbaractivity;import Android.view.view;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.editte
1. Turn off WiFi and call API[DllImport ("Wlanapi.dll"true)] Public Static extern UINT ref Guid Pinterfaceguid, IntPtr preserved);2. Get the current connected WiFi adapter handleThe wlanopenhandle function opens a connection to the server.Just to return Clienthandle, pass in the parameters of Hclienthandle in Wlandisconnect (...).The official explanation is "A h
When it comes to flight patterns, we must all be strangers. After all, today's smart phones generally have this mode of flight, the so-called flight mode is suitable for the aircraft in the flight of a mobile phone mode, to open this mode, our phone's WiFi function will automatically shut down, So how can we reopen the closed WiFi feature? Below, small set to WIN8 system as an example, for everyone to intro
These days, the home router hangs, brushes a variety of firmware, brush to brush to go, bootloader also brush no,Router power on, no bootloader network card is not enabled, can not connect with the router.So with Win7 laptop PPPoE dial-up Internet access, open virtual WiFi to mobile phone use:Start virtual Wifinetsh WLAN set hostednetwork mode=allow ssid=linux key=~q) L! P*a1z8d%m#h Set network card sharing Internet netsh wlan start hostednetwork turn
Recently bought a Samsung R430 second-hand, configuration Pentium Dual-core T4500, 2GB memory and GeForce 310M graphics card, the speed is good, but after access to the WiFi network often drop line, and after the line is not able to search for wireless signal.
Originally thought is the problem of wireless router, and switch to network cable access to the wireless router is normal, the initial discrimination is the wireless network card driver compati
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