WifiManager.getConfiguredNetworks总是返回空列表 [英] WifiManager.getConfiguredNetworks always returns empty list

问题描述

我试图连接到一个开放的WiFi网络。当我打开我的应用程序应该打开WiFi和连接到如下定义的网络。问题是， WifiManager.getConfiguredNetworks 总是返回我空列表。我已经使用锁太没有成功尝试。

I am trying to connect to an open wifi network. When I open my app it should turn on wifi and connect to the network defined as below. The problem is that WifiManager.getConfiguredNetworks always returns me an empty list. I have tried using locks too without success.

WifiConfiguration conf = new WifiConfiguration();
conf.SSID = "\"" + networkSSID + "\"";
conf.status = WifiConfiguration.Status.ENABLED;        
conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
conf.priority = Integer.MAX_VALUE;

WifiManager wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE); 
wifiManager.setWifiEnabled(true);   
wifiManager.addNetwork(conf);


List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
if(list.isEmpty()) 
{
    Log.e("Connection Setup","Empty list returned");
}

for( WifiConfiguration i : list ) {
    if(i.SSID != null && i.SSID.equals("\"" + networkSSID + "\"")) {
    Log.e("Connection Setup",i.SSID+" connrction attempted");
    wifiManager.disconnect();
    wifiManager.enableNetwork(i.networkId, true);
    wifiManager.reconnect();               
    break;
 }           
}

我一直在尝试更多的东西 - 如果我做这个线程睡眠约10秒钟左右 - 一切工作正常 - 但有没有更好的选择

I have been trying more things - if I make this thread sleep for about 10 seconds or so - everything works fine - but is there a better alternative?

推荐答案

您不能继续

CMD wifiManager.getConfiguredNetworks()

，直到无线状态已启用完全。为使无线网络就需要一定的时间。所以，你需要推迟一段时间。

until the status of WiFi is enabled completely. For enabling the WiFi it need some time. So you need to delay some time.

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