Android L (5.x) 以编程方式打开/关闭 "Mobile Data"

Question

我需要以编程方式打开/关闭移动数据。以下代码不适用于 5.x。你能帮我么。提前致谢。

private void setMobileDataEnabled(Context context, boolean enabled) throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
        final ConnectivityManager conman = (ConnectivityManager)  context.getSystemService(Context.CONNECTIVITY_SERVICE);
        final Class conmanClass = Class.forName(conman.getClass().getName());
        final Field connectivityManagerField = conmanClass.getDeclaredField("mService");
        connectivityManagerField.setAccessible(true);
        final Object connectivityManager = connectivityManagerField.get(conman);
        final Class connectivityManagerClass =  Class.forName(connectivityManager.getClass().getName());
        final Method setMobileDataEnabledMethod = connectivityManagerClass.getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE);
        setMobileDataEnabledMethod.setAccessible(true);
        setMobileDataEnabledMethod.invoke(connectivityManager, enabled);    }

03-30 12:42:29.466: W/System.err(5966): java.lang.NoSuchMethodException: setMobileDataEnabled [boolean] 03-30 12:42:29.466: W/System.err(5966): at java.lang.Class.getMethod(Class.java:664) 03-30 12:42:29.466: W/System.err(5966): at java.lang.Class.getDeclaredMethod(Class.java:626)

java.lang.NoSuchMethodException: setMobileDataEnabled [boolean] @ below line.

final Method setMobileDataEnabledMethod = connectivityManagerClass.getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE);

Answer 1

It seems like the setMobileDataEnabled method no longer exists in ConnectivityManager and this functionality was moved to TelephonyManager with two methods getDataEnabled and setDataEnabled.

public void setMobileDataState(boolean mobileDataEnabled)
{
    try
    {
        TelephonyManager telephonyService = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        Method setMobileDataEnabledMethod = telephonyService.getClass().getDeclaredMethod("setDataEnabled", boolean.class);

        if (null != setMobileDataEnabledMethod)
        {
            setMobileDataEnabledMethod.invoke(telephonyService, mobileDataEnabled);
        }
    }
    catch (Exception ex)
    {
        Log.e(TAG, "Error setting mobile data state", ex);
    }
}

public boolean getMobileDataState()
{
    try
    {
        TelephonyManager telephonyService = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        Method getMobileDataEnabledMethod = telephonyService.getClass().getDeclaredMethod("getDataEnabled");

        if (null != getMobileDataEnabledMethod)
        {
            boolean mobileDataEnabled = (Boolean) getMobileDataEnabledMethod.invoke(telephonyService);

            return mobileDataEnabled;
        }
    }
    catch (Exception ex)
    {
        Log.e(TAG, "Error getting mobile data state", ex);
    }

    return false;
}

当执行代码时，您会收到一个 SecurityException，指出用户 10089 和当前进程都没有 android.permission.MODIFY_PHONE_STATE。

应添加权限MODIFY_PHONE_STATE我从 Answer 得到这个谢谢 Muzikant