Android 中的 Wifi 身份验证错误

Question

我正在 Android 中使用 Wifi 开发一个应用程序。每当我在连接 wifi 时输入错误密码时，我都不会收到任何无效身份验证的通知。它只是不断重试连接。在 wifi 无线设置中也发现了相同的行为。

有什么办法可以发现Wifi认证失败吗？

WifiManager.EXTRA_SUPPLICANT_ERROR - 我从来没有得到这个..

Answer 1

这段代码的工作原理：

IntentFilter mIntentFilter = new IntentFilter();
mIntentFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
registerReceiver(receiverWifi, mIntentFilter);


class WifiReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context c, Intent intent) {
        String action  = intent.getAction();
        if(action.equals(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION)){
            Log.d("WifiReceiver", ">>>>SUPPLICANT_STATE_CHANGED_ACTION<<<<<<");
            SupplicantState supl_state=((SupplicantState)intent.getParcelableExtra(WifiManager.EXTRA_NEW_STATE));
            switch(supl_state){
            case ASSOCIATED:Log.i("SupplicantState", "ASSOCIATED");
                break;
            case ASSOCIATING:Log.i("SupplicantState", "ASSOCIATING");
                break;
            case AUTHENTICATING:Log.i("SupplicantState", "Authenticating...");
                break;
            case COMPLETED:Log.i("SupplicantState", "Connected");
                break;
            case DISCONNECTED:Log.i("SupplicantState", "Disconnected");
                break;
            case DORMANT:Log.i("SupplicantState", "DORMANT");
                break;
            case FOUR_WAY_HANDSHAKE:Log.i("SupplicantState", "FOUR_WAY_HANDSHAKE");
                break;
            case GROUP_HANDSHAKE:Log.i("SupplicantState", "GROUP_HANDSHAKE");
                break;
            case INACTIVE:Log.i("SupplicantState", "INACTIVE");
                break;
            case INTERFACE_DISABLED:Log.i("SupplicantState", "INTERFACE_DISABLED");
                break;
            case INVALID:Log.i("SupplicantState", "INVALID");
                break;
            case SCANNING:Log.i("SupplicantState", "SCANNING");
                break;
            case UNINITIALIZED:Log.i("SupplicantState", "UNINITIALIZED");
                break;
            default:Log.i("SupplicantState", "Unknown");
                break;

            }
            int supl_error=intent.getIntExtra(WifiManager.EXTRA_SUPPLICANT_ERROR, -1);
            if(supl_error==WifiManager.ERROR_AUTHENTICATING){
                Log.i("ERROR_AUTHENTICATING", "ERROR_AUTHENTICATING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
            }
        }
    }
}

<receiver
    android:name=".MyActivity$WifiReceiver"
    android:process=":remote" >
</receiver>