android.net.WifiManager无法解析为变量 [英] android.net.WifiManager cannot be resolved to a variable

问题描述

我的MainActivity中有此类，用于检测Internet连接和wifi扫描结果。我马上就收到以下错误消息： android.net.wifi.SCAN_RESULTS无法解析为类型

I have this class in my MainActivity to detect Internet Connection and wifi scanning result. I am getting at the Moment this error "android.net.wifi.SCAN_RESULTS cannot be resolved to a type" at this

内部MainActivity：

inner MainActivity:

class Receiver extends BroadcastReceiver {

		@Override
		public void onReceive(Context context, Intent intent) {
			if (intent.getAction().equals(
					android.net.ConnectivityManager.CONNECTIVITY_ACTION)) {

			} else if(intent.getAction().equals(android.net.WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)) { //here is the error
                 }
	    }
	}

        <receiver android:name=".ConnectionBroadcast" >
            <intent-filter>
                <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.net.wifi.SCAN_RESULTS" />
            </intent-filter>
        </receiver>

推荐答案

只需尝试以下最适合我的方法：

Just try this The best that worked for me:

AndroidManifest

<receiver android:name="com.AEDesign.communication.WifiReceiver" >
   <intent-filter android:priority="100">
      <action android:name="android.net.wifi.STATE_CHANGE" />
   </intent-filter>
</receiver>

BroadcastReceiver类

public class WifiReceiver extends BroadcastReceiver {

   @Override
   public void onReceive(Context context, Intent intent) {

      NetworkInfo info = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
      if(info != null) {
         if(info.isConnected()) {
            // Do your work. 

            // e.g. To check the Network Name or other info:
            WifiManager wifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);
            WifiInfo wifiInfo = wifiManager.getConnectionInfo();
            String ssid = wifiInfo.getSSID();
         }
      }
   }
}

权限

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

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