Android 监听WiFi的开关状态实现代码

android 监听wifi的开关状态实现代码

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();
    }
  }
}

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