Android，如何忽略已经连接的WiFi，就像手机忘记WiFi一样

如何解决Android，如何忽略已经连接的WiFi，就像手机忘记WiFi一样

我知道可以使用以下方法，但有时行不通。

public void removeNetwork(String sSid){
    WifiConfiguration tempConfig = isExist(sSid);
    if (tempConfig != null) {
        try {
            boolean isRemoved = mWifiManager.removeNetwork(tempConfig.networkId);
            boolean isdisabled = mWifiManager.disableNetwork(tempConfig.networkId);
            boolean isSaved = mWifiManager.saveConfiguration();
            Log.i(TAG,"isRemoved: "+ isRemoved + ",isdisabled" + isdisabled+ ",isSaved" + isSaved);
        } catch (Exception e){
            Log.i(TAG,"RemoveNetwork Exception: "+e.getMessage());
        }
    }
}