当前位置：theitroad>如何在 Android 上以编程方式关闭 3G/数据？

如何在 Android 上以编程方式关闭 3G/数据？

声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow 原文地址: http://stackoverflow.com/questions/12535101/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me): StackOverFlow

提示：将鼠标放在中文语句上可以显示对应的英文。显示中英文

时间：2020-08-20 10:54:41 　来源:igfitidea点击:

How can i turn off 3G/Data programmatically on Android?

android3g

提问by chuyitox

How can I turn off 3G/Data programmatically on Android?

如何在 Android 上以编程方式关闭 3G/数据？

Not Wifi, but 3G/Data.

不是 Wifi，而是 3G/数据。

回答by Raghav Sood

There is no official way to do this. However, it can be achieved unofficially with reflection.

没有官方方法可以做到这一点。但是，它可以通过反射非正式地实现。

For Android 2.3 and above:

对于 Android 2.3 及更高版本：

private void setMobileDataEnabled(Context context, boolean enabled) {
    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);
}

This also requires the following permission.

这还需要以下权限。

 <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>

For Android 2.2 and below:

对于 Android 2.2 及以下：

Method dataConnSwitchmethod;
Class telephonyManagerClass;
Object ITelephonyStub;
Class ITelephonyClass;

TelephonyManager telephonyManager = (TelephonyManager) context
        .getSystemService(Context.TELEPHONY_SERVICE);

if(telephonyManager.getDataState() == TelephonyManager.DATA_CONNECTED){
    isEnabled = true;
}else{
    isEnabled = false;  
}   

telephonyManagerClass = Class.forName(telephonyManager.getClass().getName());
Method getITelephonyMethod = telephonyManagerClass.getDeclaredMethod("getITelephony");
getITelephonyMethod.setAccessible(true);
ITelephonyStub = getITelephonyMethod.invoke(telephonyManager);
ITelephonyClass = Class.forName(ITelephonyStub.getClass().getName());

if (isEnabled) {
    dataConnSwitchmethod = ITelephonyClass
            .getDeclaredMethod("disableDataConnectivity");
} else {
    dataConnSwitchmethod = ITelephonyClass
            .getDeclaredMethod("enableDataConnectivity");   
}
dataConnSwitchmethod.setAccessible(true);
dataConnSwitchmethod.invoke(ITelephonyStub);

This required the following permission:

这需要以下权限：

<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />

Note that both of these are unofficial and may no longer work. No more proof of this kind of thing breaking should be needed, as the 2.2 and below method broke on 2.3.

请注意，这两个都是非官方的，可能不再有效。不需要更多的证据来证明这种事情被破坏了，因为 2.2 及以下的方法在 2.3 上被破坏了。

回答by Swetha

Surround the code with try/catchblocks

用try/catch块包围代码

public void mobiledataenable(boolean enabled) {

try { 
        final ConnectivityManager conman = (ConnectivityManager)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 (Exception e)
    {
        e.printStackTrace();
    }     
}

In the Manifest, add the following permission:

在 Manifest 中，添加以下权限：

<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>

回答by Suresh Mewara

 public void onClick(View view){
        ConnectivityManager dataManager;
        dataManager  = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
        Method dataMtd = null;
        try {
            dataMtd = ConnectivityManager.class.getDeclaredMethod("setMobileDataEnabled", boolean.class);
        } catch (NoSuchMethodException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        dataMtd.setAccessible(true);
        try {
            dataMtd.invoke(dataManager, true);
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }   
    }

回答by Ricardo Rivaldo

I'm still on 2.1, so this solution works for me.

我仍在使用 2.1，所以这个解决方案对我有用。

But you need also to include MODIFY_PHONE_STATE permision.

但您还需要包含 MODIFY_PHONE_STATE 权限。

Full code (with a toogle button) 2.1:

完整代码（带有工具按钮）2.1：

package com.rivaldo.turn3gonoff;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.telephony.TelephonyManager;
import android.view.Menu;
import android.widget.CompoundButton;
import android.widget.ToggleButton;

public class Turn3GOnOff extends Activity {

Method dataConnSwitchmethod_ON;
Method dataConnSwitchmethod_OFF;
Class telephonyManagerClass;
Object ITelephonyStub;
Class ITelephonyClass;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_turn3_gon_off);

    GetDataConnectionAPI();

    ToggleButton toggle = (ToggleButton) findViewById(R.id.toggleButton);
    toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            if (isChecked) {
                turn3GOn();
            } else {
                turn3GOff();
            }
        }
    });

}

private void GetDataConnectionAPI() {
    this.getApplicationContext();
    TelephonyManager telephonyManager = 
                    (TelephonyManager) this.getApplicationContext().
                                              getSystemService(Context.TELEPHONY_SERVICE);

    try {
        telephonyManagerClass = Class.forName(telephonyManager.getClass().getName());
        Method getITelephonyMethod = telephonyManagerClass.getDeclaredMethod("getITelephony");
        getITelephonyMethod.setAccessible(true);
        ITelephonyStub = getITelephonyMethod.invoke(telephonyManager);
        ITelephonyClass = Class.forName(ITelephonyStub.getClass().getName());

        dataConnSwitchmethod_OFF = 
                        ITelephonyClass.getDeclaredMethod("disableDataConnectivity");
        dataConnSwitchmethod_ON = ITelephonyClass.getDeclaredMethod("enableDataConnectivity");   
    } catch (Exception e) { // ugly but works for me
        e.printStackTrace();
    }
}
private void turn3GOn() {
    dataConnSwitchmethod_ON.setAccessible(true);
    try {
        dataConnSwitchmethod_ON.invoke(ITelephonyStub);
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    } catch (InvocationTargetException e) {
        e.printStackTrace();
    }
}

private void turn3GOff() {
    dataConnSwitchmethod_OFF.setAccessible(true);
    try {
        dataConnSwitchmethod_OFF.invoke(ITelephonyStub);
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    } catch (InvocationTargetException e) {
        e.printStackTrace();
    }
}

}

Manifest.xml

清单文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rivaldo.turn3gonoff"
android:versionCode="1"
android:versionName="1.0" >

<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
<uses-sdk
    android:minSdkVersion="7"
    android:targetSdkVersion="7" />
<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.rivaldo.turn3gonoff.Turn3GOnOff"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>


</application>
</manifest>

activity_turn3_gon_off.xml

activity_turn3_gon_off.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context=".Turn3GOnOff" >

<ToggleButton
    android:id="@+id/toggleButton"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:layout_marginTop="60dp"
    android:textOn="3G on"
    android:textOff="3G off"
    android:text="ToggleButton" />

</RelativeLayout>