如何从源头code更改Android设备的网络状态？ [英] How to change the network state of device from source code in Android?

问题描述

我试图改变从源头code设备的网络状态。
我观察到有授予的申请，即改变网络状态的权限，CHANGE_NETWORK_STATE。

I am trying to change the network state of the device from the source code.
I observed that there is a permission to grant to the applications for changing the network state i.e., CHANGE_NETWORK_STATE.

但我无法找到任何例子或者code，可以改变一个设备的网络状态。

But I am not able to find any example or code that can change the network state of a device.

请让我知道如果任何人知道或有一个例子来更改设备的网络状态。

Please let me know if anyone knows or have an example to change the network state of a device.

问候，
SSuman185

Regards,
SSuman185

推荐答案

这code的工作。我把它从这里。

This code is working. I got it from here.

 private void setMobileDataEnabled(Context context, boolean enabled) {

        try {
        final ConnectivityManager conman = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        final Class conmanClass = Class.forName(conman.getClass().getName());
        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);

        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SecurityException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (NoSuchFieldException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        finally {

        }
    }

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