android - 在Android 6中打开wifi时如何为任何应用程序强制使用移动数据

Question

我希望 android 应用程序仅使用移动数据，即使 WIFI 和移动数据都在Android 6中。如何仅将 android 进程绑定到移动数据。
请建议。例子会很好。

Answer 1

如果你的安卓版本是 M 或以上，你可以很容易地做到这一点。首先，您需要正确的清单权限： <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />

这是一个应该做你需要的示例方法：

public static void forceConnectionToMobile2(Context context) {
    final ConnectivityManager connection_manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        NetworkRequest.Builder request = new NetworkRequest.Builder();

        Log.d(TAG,"request TRANSPORT_CELLULAR");
        request.addCapability(NetworkCapabilities.TRANSPORT_CELLULAR);

        connection_manager.requestNetwork(request.build(), new ConnectivityManager.NetworkCallback() {
            @Override
            public void onAvailable(Network network) {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    Log.d(TAG,"binding app to cellular network");
                    connection_manager.bindProcessToNetwork(network);
                }
            }
        });

    }
}

Answer 2

boolean mobileDataEnabled = false;

        try {
            Class cmClass = Class.forName(connection_manager.getClass().getName());
            Method method = cmClass.getDeclaredMethod("getMobileDataEnabled");
            method.setAccessible(true);
            mobileDataEnabled = (Boolean) method.invoke(connection_manager);
        } catch (Exception e) {
        }
First check if mobile data enable or disable then do 

 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            NetworkRequest.Builder request = new NetworkRequest.Builder();
            request.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR);
            request.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET);

            connection_manager.requestNetwork(request.build(), new ConnectivityManager.NetworkCallback() {
                @Override
                public void onAvailable(Network network) {
connection_manager.bindProcessToNetwork(network);
}
}

Answer 3

您可以访问Android force app使用移动数据通道

    manager = (WifiManager)this.getSystemService(Context.WIFI_SERVICE);

if(manager.isWifiEnabled()) {
    manager.setWifiEnabled(false);
}
// and to be sure:
ConnectivityManager.setNetworkPreference(ConnectivityManager.TYPE_MOBILE);