android - WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION 永远不会被解雇

Question

我正在 onResume() 上注册接收器:

registerReceiver(wifiConnectivityReceiver, new
                IntentFilter(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION));

这是接收器本身:

class WiFiConnectivityReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getBooleanExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED,false)){
            Log.d(TAG,"Connected to network!");
        } else {
            Log.d(TAG,"Could not connect to network!");
        }
    }
}

在我的应用程序中，我能够连接到选定的 WiFi 网络，但是这个 SUPPLICANT_CONNECTION_CHANGE_ACTION 永远不会被触发。如果我​​将它更改为 SUPPLICANT_STATE_CHANGED_ACTION 例如它正在工作。

我正在研究 ICS。
有没有其他人遇到过这样的问题？

Answer 1

我认为以下代码可以帮助您:

public void installMyReceiver(){
    if (I) Log.i(TAG, "installMyReceiver() - Online");
    mFlag = true;


    myReceiver = new BroadcastReceiver(){
        public void onReceive (Context context, Intent intent){
            String action = intent.getAction();

            if (WifiManager.SUPPLICANT_STATE_CHANGED_ACTION.equals(action)){

                SupplicantState supplicantState = (SupplicantState)intent.getParcelableExtra(WifiManager.EXTRA_NEW_STATE);
                if (supplicantState == (SupplicantState.COMPLETED)){
                    if (I) Log.i(TAG, "SUPPLICANTSTATE ---> Connected");
                      //do something
                }

                if (supplicantState == (SupplicantState.DISCONNECTED)){
                    if (I) Log.i(TAG, "SUPPLICANTSTATE ---> Disconnected");
                       //do something
                }

            }
        }
    };

    IntentFilter mFilter = new IntentFilter (WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
    this.registerReceiver (myReceiver, mFilter);
}

这是获取所需信息然后执行某些操作的简单方法。希望对您有所帮助!