WIFI状态的获取及监听

wsaer

• 在Activit获取wifi状态
  
  

　　获取WIFI的开关状态



WifiManager wifiMgr = (WifiManager) this.getSystemService(WIFI_SERVICE);
int stat = wifiMgr.getWifiState(),
　　获取WIFI的连接状态



ConnectivityManager conMan = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
State wifi = conMan.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
　　

• 监听wifi状态
  

　　监听WIFI状态处理类



public class WifiStateReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context arg0, Intent intent) {
// WIFI的开关状态处理
if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(intent.getAction())) {
int wifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0);
switch (wifiState) {
case WifiManager.WIFI_STATE_ENABLED:
case WifiManager.WIFI_STATE_ENABLING:
// 处于要启用的状态
break;
case WifiManager.WIFI_STATE_DISABLED:
case WifiManager.WIFI_STATE_DISABLING:
// 处于要停用的状态
break;
}
}
// WIFI的连接状态处理
if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(intent.getAction())) {
Parcelable parcelable = intent
.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
if (parcelable instanceof NetworkInfo) {
NetworkInfo networkInfo = (NetworkInfo) parcelable;
switch (networkInfo.getState()) {
case CONNECTED:
// TODO 连接上后的处理
break;
case CONNECTING:
case DISCONNECTING:
case SUSPENDED:
case UNKNOWN:
// TODO 非连接上的处理
break;
}
}
}
// WIFI详细信息获取
if (ConnectivityManager.CONNECTIVITY_ACTION.equals(intent.getAction())) {
NetworkInfo info = intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
}
}
}
　　
　　AndroidManifest.xml的Pemisstion页添加权限
ACCESS_WIFI_STATE
ACCESS_NETWORK_STATE

　　
　　AndroidManifest.xml的Application页，在Application Notes区域点击Add，选择Receiver

　　
在Application页Attributes for Receiver区域，设置
Name属性为刚写的Receiver类WifiStateReceiver
　　再为WifiStateReceiver节点添加Intent Filter

　　
再在intent-filters下添加下面三个Action
　　android.net.wifi.WIFI_STATE_CHANGED
android.net.wifi.STATE_CHANGE
android.net.wifi.supplicant.CONNECTION_CHANGE