android - 以编程方式打开互联网连接 (Android)

Question

我正在为 android 开发一个软件，我想自动打开用户的互联网连接。就像这些互联网开/关小部件一样。

Answer 1

private void setMobileDataEnabled(Context context, boolean enabled) throws Exception{
    final ConnectivityManager conman = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    Class conmanClass = null;
    try {
        conmanClass = Class.forName(conman.getClass().getName());
    } catch (ClassNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    final Field iConnectivityManagerField = conmanClass.getDeclaredField("mService");
    iConnectivityManagerField.setAccessible(true);
    final Object iConnectivityManager = iConnectivityManagerField.get(conman);
    final Class iConnectivityManagerClass = Class.forName(iConnectivityManager.getClass().getName());
    final Method setMobileDataEnabledMethod = iConnectivityManagerClass.getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE);
    setMobileDataEnabledMethod.setAccessible(true);
    setMobileDataEnabledMethod.invoke(iConnectivityManager, enabled);
}

这是用于 3g 激活，类似于 wifi