Android Lollipop - WiFi 热点 setWifiApEnabled() 获取 InvocationTargetException

Question

我在应用中使用

setWifiApEnabled()

来自隐藏 API(通过反射访问)。在一些旧手机上它可以工作(也适用于三星 Galaxy S3，一些 4.4 的手机，......)但我用三星 Galaxy S5 测试了它并且我得到了

java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
...

我正在使用类似的代码 Android 2.2 wifi hotspot API或 How and what to set to Android WifiConfiguration.preSharedKey to connect to the WPA2 PSK WiFi network但这是一个有点旧的代码。

你有这方面的经验吗？你有什么建议？

附言它在某些 Android 4.4 设备中也不起作用(但我没有得到 InvocationTargetException)。

Answer 1

试试这个。

ConnectivityManager cman = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        Method[] methods = cman.getClass().getMethods();

        try
        {
            wifiManager.setWifiEnabled(false);
            Method enableWifi = wifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);
            String ssid  =   " " //your SSID 
            String pass  =   " " // your Password
            WifiConfiguration  myConfig =  new WifiConfiguration();
            myConfig.SSID = ssid;
            myConfig.preSharedKey  = pass ;
            myConfig.status = WifiConfiguration.Status.ENABLED;
            myConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
            myConfig.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
            myConfig.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
            myConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP); 
            myConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP); 
            myConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP); 
            myConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
            result = (Boolean) enableWifi.invoke(wifiManager, myConfig, true);

        } 
        catch (Exception e) 
        {
            e.printStackTrace();
            result = false;
        }

如果出现异常，请尝试将此权限添加到您的 list 中android.permission.WRITE_SETTINGS