Android使用代码打开/关闭移动数据

Question

我试图解决一个问题,我必须禁用,然后启用移动数据之间的一些延迟(重置移动数据2G).

第1步:禁用移动数据

第2步:等到移动数据被禁用

第3步:有些延迟说2秒

第4步:启用移动数据

第5步:等到移动数据启用

第6步:继续执行程序.....

做了一些研究我想出了这个......

 @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;
    }

上面的代码将打开/关闭移动数据,但它发生得非常快.这很快,移动数据实际上甚至没有关闭.如何在两者之间添加延迟并实现上面提到的步骤？任何帮助,将不胜感激.谢谢!

Answer 1

就放

Thread.sleep(1000);

在代码语句之间（setMobileData API 之前）实现延迟。延迟参数以毫秒为单位。所以根据你的要求来改变它。

编辑：尝试使用以下代码将延迟放入处理程序中：

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