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我正在尝试连接到 Android 上的特定 Wifi 网络 (WPA2)，但不知何故，它无法在运行 Android 版本 4.1.2 的特定设备上运行。而相同的代码正在运行 Android 版本 4.4.2 和 4.4.4 的其他 2 台设备上运行。在它不工作的设备上，我看到网络已成功添加，因为我可以手动连接而无需明确输入密钥。代码片段粘贴在下面。知道我在这里做错了什么还是存在版本依赖性？

private boolean connectToWifi(String networkSSID, String networkPass) {

    networkSSID = "\"" + networkSSID + "\"";

    WifiManager wifiMgr = (WifiManager)(this.getSystemService(Context.WIFI_SERVICE));
    WifiInfo wifiInfo = wifiMgr.getConnectionInfo();
    if(wifiInfo != null) {
        String name = wifiInfo.getSSID();
        if(name.equalsIgnoreCase(networkSSID)) {
            return true;
        }
    }

    int networkId = -1;
    WifiManager wifiManager = (WifiManager)(this.getSystemService(Context.WIFI_SERVICE));
    List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
    for( WifiConfiguration i : list ) {
        if(i.SSID != null && i.SSID.equals(networkSSID)) {
             break;
        }           
    }

    if(networkId == -1) {
        WifiConfiguration conf = new WifiConfiguration();
        conf.SSID = networkSSID;
        conf.preSharedKey = "\"" + networkPass + "\"";
        networkId = wifiManager.addNetwork(conf);
        if(networkId == -1)
            return false;
    }

    boolean retval = false;
    list = wifiManager.getConfiguredNetworks();
    for( WifiConfiguration i : list ) {
        if(i.SSID != null && i.SSID.equals(networkSSID)) {
            this.addDebugMessage("Trying to connect to p2p network");
            wifiManager.disconnect();
            wifiManager.enableNetwork(i.networkId, true);
            retval = wifiManager.reconnect();
            break;
        }           
    }
    return retval;
}

清单中还添加了必要的权限：

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