Android以编程方式打开/关闭WiFi热点

Is there an API to turn On/Off the WiFi HotSpot on Android programmatically?

有没有API可以通过编程方式打开/关闭Android上的WiFi热点?

What methods should I call to turn it On/Off?

我应该调用什么方法来打开/关闭它?

UPDATE:There's this option to have the HotSpot enabled, and just turn On/Off the WiFi, but this is not a good solution for me.

更新:有这个选项可以让热点打开/关闭WiFi，但这对我来说不是一个好的解决方案。

9 个解决方案

#1

Use the class below to change/check the Wifi hotspot setting:

使用下面的类来更改/检查Wifi热点设置:

import android.content.*;
import android.net.wifi.*;
import java.lang.reflect.*;

public class ApManager {

//check whether wifi hotspot on or off
public static boolean isApOn(Context context) {
    WifiManager wifimanager = (WifiManager) context.getSystemService(context.WIFI_SERVICE);     
    try {
        Method method = wifimanager.getClass().getDeclaredMethod("isWifiApEnabled");
        method.setAccessible(true);
        return (Boolean) method.invoke(wifimanager);
    }
    catch (Throwable ignored) {}
    return false;
}

// toggle wifi hotspot on or off
public static boolean configApState(Context context) {
    WifiManager wifimanager = (WifiManager) context.getSystemService(context.WIFI_SERVICE);
    WifiConfiguration wificonfiguration = null;
    try {  
        // if WiFi is on, turn it off
        if(isApOn(context)) {               
            wifimanager.setWifiEnabled(false);
        }               
        Method method = wifimanager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);                   
        method.invoke(wifimanager, wificonfiguration, !isApOn(context));
        return true;
    } 
    catch (Exception e) {
        e.printStackTrace();
    }       
    return false;
}
} // end of class

You need to add the permissions below to your AndroidMainfest:

您需要将以下权限添加到AndroidMainfest:

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

Use this standalone ApManager class from anywhere as follows:

从以下任何地方使用这个独立的ApManager类:

ApManager.isApOn(YourActivity.this); // check Ap state :boolean
ApManager.configApState(YourActivity.this); // change Ap state :boolean

Hope this will help someone

希望这能帮助某人

#2

There are no methods in the Android SDK pertaining to the WiFi hotspot feature -- sorry!

Android SDK中没有与WiFi热点特性相关的方法——抱歉!

#3

You can use the following code to enable, disable and query the wifi direct state programatically.

您可以使用以下代码以编程方式启用、禁用和查询wifi direct state。

package com.kusmezer.androidhelper.networking;

import java.lang.reflect.Method;
import com.google.common.base.Preconditions;
import android.content.Context;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.util.Log;

public final class WifiApManager {
      private static final int WIFI_AP_STATE_FAILED = 4;
      private final WifiManager mWifiManager;
      private final String TAG = "Wifi Access Manager";
      private Method wifiControlMethod;
      private Method wifiApConfigurationMethod;
      private Method wifiApState;

      public WifiApManager(Context context) throws SecurityException, NoSuchMethodException {
       context = Preconditions.checkNotNull(context);
       mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
       wifiControlMethod = mWifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class,boolean.class);
       wifiApConfigurationMethod = mWifiManager.getClass().getMethod("getWifiApConfiguration",null);
       wifiApState = mWifiManager.getClass().getMethod("getWifiApState");
      }   
      public boolean setWifiApState(WifiConfiguration config, boolean enabled) {
       config = Preconditions.checkNotNull(config);
       try {
        if (enabled) {
            mWifiManager.setWifiEnabled(!enabled);
        }
        return (Boolean) wifiControlMethod.invoke(mWifiManager, config, enabled);
       } catch (Exception e) {
        Log.e(TAG, "", e);
        return false;
       }
      }
      public WifiConfiguration getWifiApConfiguration()
      {
          try{
              return (WifiConfiguration)wifiApConfigurationMethod.invoke(mWifiManager, null);
          }
          catch(Exception e)
          {
              return null;
          }
      }
      public int getWifiApState() {
       try {
            return (Integer)wifiApState.invoke(mWifiManager);
       } catch (Exception e) {
        Log.e(TAG, "", e);
            return WIFI_AP_STATE_FAILED;
       }
      }
}

#4

Your best bet will be looking at the WifiManager class. Specifically the setWifiEnabled(bool) function.

你最好的选择是看一下WifiManager课程。特别是setWifiEnabled(bool)功能。

See the documentation at: http://developer.android.com/reference/android/net/wifi/WifiManager.html#setWifiEnabled(boolean)

参见文档:http://developer.android.com/reference/android/net/wifi/WifiManager.html#setWifiEnabled(boolean)

A tutorial on how to use it (including what permissions you need) can be found here: http://www.tutorialforandroid.com/2009/10/turn-off-turn-on-wifi-in-android-using.html

关于如何使用它的教程(包括您需要的权限)可以在这里找到:http://www.tutorialforandroid.com/2009/10/turn- turn-on- wifiin android- use .html

#5

I have publish unofficial api's for same, it's contains more than just hotspot turn on/off. link

我也发布了非官方的api，它不仅仅包含热点打开/关闭。链接

For API's DOC - link.

用于API的文档链接。

#6

This works well for me:

这对我来说很有效:

WifiConfiguration apConfig = null;
Method method = wifimanager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, Boolean.TYPE);
method.invoke(wifimanager, apConfig, true);

#7

For Android 8.0, there is a new API to handle Hotspots. As far as I know, the old way using reflection doesn't work anymore. Please refer to:

对于Android 8.0，有一个新的API来处理热点。据我所知，使用反射的旧方法已经不起作用了。请参考:

Android Developers https://developer.android.com/reference/android/net/wifi/WifiManager.html#startLocalOnlyHotspot(android.net.wifi.WifiManager.LocalOnlyHotspotCallback,%20android.os.Handler)

Android开发者https://developer.android.com/reference/android/net/wifi/WifiManager.html startLocalOnlyHotspot(android.net.wifi.WifiManager.LocalOnlyHotspotCallback % 20 handler)

void startLocalOnlyHotspot (WifiManager.LocalOnlyHotspotCallback callback, 
                Handler handler)

Request a local only hotspot that an application can use to communicate between co-located devices connected to the created WiFi hotspot. The network created by this method will not have Internet access.

请求应用程序可以用来在连接到创建的WiFi热点的共同定位设备之间进行通信的本地唯一热点。此方法创建的网络将无法访问Internet。

Stack Overflow
How to turn on/off wifi hotspot programmatically in Android 8.0 (Oreo)

Stack Overflow如何在Android 8.0 (Oreo)中以编程方式打开/关闭wifi热点

onStarted(WifiManager.LocalOnlyHotspotReservation reservation) method will be called if hotspot is turned on.. Using WifiManager.LocalOnlyHotspotReservation reference you call close() method to turn off hotspot.

onstart(WifiManager。如果热点被打开，将调用LocalOnlyHotspotReservation方法。使用WifiManager。LocalOnlyHotspotReservation引用调用close()方法关闭热点。

#8

Applies to Oreo+ only...

只适用于奥利奥+……

I made an app with code here on GitHub which uses reflection and DexMaker to 'get at' Oreo's tethering functionality, which is now in ConnectionManager, rather than WifiManager.

我在GitHub上做了一个代码应用，它使用反射和DexMaker来“获取”奥利奥的连接功能，而不是WifiManager。

The stuff in WifiManager is good only for a closed wifi network (which explained the Closed bit in the class names!).

WifiManager中的内容只适用于封闭的wifi网络(它解释了类名中关闭的部分!)

More explanation https://*.com/a/49356255/772333.

更多解释https://*.com/a/49356255/772333。

#9

-3

WifiManager wifiManager = (WifiManager)this.context.getSystemService(Context.WIFI_SERVICE);
wifiManager.setWifiEnabled(status);

where status may be true or false

哪里的地位可能是真或假

add permission manifest: <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

添加权限清单:

#1