Android 监听 WiFi 开关状态

WifiSwitch_Presenter 源码：

package com.yiba.wifi.sdk.lib.presenter;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.net.wifi.WifiManager;

/**

* Created by ${zhaoyanjun} on 2017/3/29.

* Wifi 开关监听

*/

public class WifiSwitch_Presenter {

private Context mContext ;

private Receiver receiver ;

private WifiSwitch_Interface mInterface ;

public WifiSwitch_Presenter( Context context , WifiSwitch_Interface mInterface ){

this.mContext = context ;

this.mInterface = mInterface ;

observeWifiSwitch();

}

private void observeWifiSwitch(){

IntentFilter filter = new IntentFilter();

filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);

receiver = new Receiver() ;

mContext.registerReceiver(receiver, filter);

}

/**

* 释放资源

*/

public void onDestroy(){

if ( receiver != null ){

mContext.unregisterReceiver( receiver );

}

if (mContext!=null){

mContext = null;

}

}

class Receiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

int wifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0);

switch (wifiState) {

case WifiManager.WIFI_STATE_DISABLED:

if (mInterface != null){

mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_DISABLED);

}

break;

case WifiManager.WIFI_STATE_DISABLING:

if (mInterface != null){

mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_DISABLING);

}

break;

case WifiManager.WIFI_STATE_ENABLED:

if (mInterface != null){

mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_ENABLED);

}

break;

case WifiManager.WIFI_STATE_ENABLING:

if ( mInterface != null ) {

mInterface.wifiSwitchState(WifiSwitch_Interface.WIFI_STATE_ENABLING);

}

break;

case WifiManager.WIFI_STATE_UNKNOWN:

if ( mInterface != null ){

mInterface.wifiSwitchState( WifiSwitch_Interface.WIFI_STATE_UNKNOWN );

}

break;

}

}

}

}

WifiSwitch_Interface 源码

package com.yiba.wifi.sdk.lib.presenter;

/**

* Created by ${zhaoyanjun} on 2017/3/29.

* Wifi 开关监听

*/

public interface WifiSwitch_Interface {

int WIFI_STATE_ENABLING = 0 ;

int WIFI_STATE_ENABLED = 1 ;

int WIFI_STATE_DISABLING = 2 ;

int WIFI_STATE_DISABLED = 3 ;

int WIFI_STATE_UNKNOWN = 4 ;

void wifiSwitchState( int state );

}

使用方式 MainActivity ：

package com.yiba.core;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements WifiSwitch_Interface {

private WifiSwitch_Presenter wifiSwitch_presenter ;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

wifiSwitch_presenter = new WifiSwitch_Presenter( this , this ) ;

}

@Override

public void wifiSwitchState(int state) {

switch ( state ){

case WifiSwitch_Interface.WIFI_STATE_DISABLED :

Toast.makeText(this, "WiFi 已经关闭", Toast.LENGTH_SHORT).show();

break;

case WifiSwitch_Interface.WIFI_STATE_DISABLING:

Toast.makeText(this, "WiFi 正在关闭", Toast.LENGTH_SHORT).show();

break;

case WifiSwitch_Interface.WIFI_STATE_ENABLED :

Toast.makeText(this, "WiFi 已经打开", Toast.LENGTH_SHORT).show();

break;

case WifiSwitch_Interface.WIFI_STATE_ENABLING :

Toast.makeText(this, "WiFi 正在打开", Toast.LENGTH_SHORT).show();

break;

}

}

@Override

protected void onDestroy() {

super.onDestroy();

//释放资源

if ( wifiSwitch_presenter != null ){

wifiSwitch_presenter.onDestroy();

}

}

}

https://www.cnblogs.com/zhaoyanjun/category/684868.html