Android的使用code开启/关闭移动数据 [英] Android turn on/off mobile data using code

问题描述

我试图接近中，我必须禁用，然后在两者之间有一些延迟使移动数据有问题（重置移动数据2G）。

I am trying to approach a problem in which I have to disable and then enable mobile data with some delay in between (reset mobile data 2G).

第1步：关闭移动数据

第2步：等到移动数据获取禁用

step 2: wait till mobile data gets disabled

第3步：一些延迟例如2秒。

step 3: some delay say 2 seconds

步骤4：启用移动数据

第5步：等到移动数据获取启用

step 5: wait till mobile data gets enabled

第六步：继续执行程序.....

step 6: continue with the program.....

在做一些研究，我想出了这个...

doing some research I came up with this...

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button start = (Button)findViewById(R.id.button1);
        start.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub

                    if(!mobileDataEnabled(getApplicationContext())){
                    setMobileDataEnabled(getApplicationContext(),true);
                    Toast.makeText(getApplicationContext(), "ENABLED", Toast.LENGTH_SHORT).show();
                    }else{
                    setMobileDataEnabled(getApplicationContext(),false);
                    Toast.makeText(getApplicationContext(), "DISABLED", Toast.LENGTH_SHORT).show();
                    }

            }
        });
    }

//the method below enables/disables mobile data depending on the Boolean 'enabled' parameter.
private void setMobileDataEnabled(Context context, boolean enabled) {
        final ConnectivityManager conman = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        Class conmanClass = null;
        try {
            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 (NoSuchFieldException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalArgumentException 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();
        }

    }
// below method returns true if mobile data is on and vice versa
 private boolean mobileDataEnabled(Context context){
        boolean mobileDataEnabled = false; // Assume disabled
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        try {
            Class cmClass = Class.forName(cm.getClass().getName());
            Method method = cmClass.getDeclaredMethod("getMobileDataEnabled");
            method.setAccessible(true); // Make the method callable
            // get the setting for "mobile data"
            mobileDataEnabled = (Boolean)method.invoke(cm);
        } catch (Exception e) {
            // Some problem accessible private API
            // TODO do whatever error handling you want here
        }
        return mobileDataEnabled;
    }

以上code将开启/关闭移动数据，但它发生的真快。这种快速的移动数据甚至不关掉其实。我怎么在两者之间添加一个延迟，实现我上面提到的步骤是什么？任何帮助将是AP preciated。
谢谢！

The above code will turn on/off mobile data but it happens really quick. this quick that the mobile data doesn't even turn off actually. how do I add a delay in between and achieve the steps I mentioned above? any help would be appreciated. thanks!

推荐答案

只要把

Thread.sleep(1000);

在code语句之间（之前的 setMobileData 的API）来实现延迟。延迟参数为毫秒。因此，根据您的要求进行更改。

in between the code statements (before setMobileData APIs) to achieve delay. The delay parameter is in milliseconds. So change it according to your requirement.

编辑：尝试将延迟到处理程序，使用这种code：

Try putting the delay into a handler, using this code:

new Handler().postDelayed(new Runnable() {
@Override
public void run() {
   //Whatever you want to do
    }
}, 1000);

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