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; 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); } 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; 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(); } } }
