package com.example.floatdialogtest;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.net.NetworkInfo;

import android.net.wifi.WifiInfo;

import android.net.wifi.WifiManager;

public class WifiReceiver extends BroadcastReceiver{

@Override

public void onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

if(intent.getAction().equals(WifiManager.RSSI_CHANGED_ACTION)){

//signal strength changed

}

else if(intent.getAction().equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)){//wifi连接上与否

System.out.println("网络状态改变");

NetworkInfo info = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);

if(info.getState().equals(NetworkInfo.State.DISCONNECTED)){

System.out.println("wifi网络连接断开");

}

else if(info.getState().equals(NetworkInfo.State.CONNECTED)){

WifiManager wifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);

WifiInfo wifiInfo = wifiManager.getConnectionInfo();

//获取当前wifi名称

System.out.println("连接到网络 " + wifiInfo.getSSID());

}

}

else if(intent.getAction().equals(WifiManager.WIFI_STATE_CHANGED_ACTION)){//wifi打开与否

int wifistate = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, WifiManager.WIFI_STATE_DISABLED);

if(wifistate == WifiManager.WIFI_STATE_DISABLED){

System.out.println("系统关闭wifi");

}

else if(wifistate == WifiManager.WIFI_STATE_ENABLED){

System.out.println("系统开启wifi");

}

}

}

}

权限

receiver intetfilter