Question

当我试图返回wifi状态，断开连接或连接时，我遇到了问题。好吧，我没有得到异常，但它跳转到我的if条件的else {}块，当我调试时，我发现：< / p>

 NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

mWifi有这个：NetworkInfo：类型：wifi []，状态：UNKNOWN / IDLE，原因:(未指定）

ConnectivityManager connManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
         NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);


        if (mWifi.isConnectedOrConnecting()){

            Toast.makeText(this,"void action Working", 3).show();



        }
        else
        {
            Toast.makeText(this,"void action Not working", 3).show();

        }

Answer 1

你可以这样做：

            final WifiManager wifiManager = (WifiManager) YourActivity.this.getSystemService(Context.WIFI_SERVICE); 

            if (!wifiManager.isWifiEnabled()) {

                wifiManager.setWifiEnabled(true); //If it's, off turn it on.

            }else{

                //Do what you want to do with wi-fi.            

            }

另请注意，我在清单中设置了以下权限（在您实现wifi直接功能时，可能并非所有这些都是必需的）：

  <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission
    android:name="android.permission.ACCESS_WIFI_STATE"
    android:required="true" />
<uses-permission
    android:name="android.permission.CHANGE_WIFI_STATE"
    android:required="true" />
<uses-permission
    android:name="android.permission.INTERNET"
    android:required="true" />

Android WiFi状态为UNKNOWN

1 个答案: