android判断是否连接wifi跟网络状态的判断

<span style="font-size:18px;">// 是否连接WIFI	public static boolean isWifiConnected(Context context) {		ConnectivityManager connectivityManager = (ConnectivityManager) context				.getSystemService(Context.CONNECTIVITY_SERVICE);		NetworkInfo wifiNetworkInfo = connectivityManager				.getNetworkInfo(ConnectivityManager.TYPE_WIFI);		if (wifiNetworkInfo.isConnected()) {			return true;		}		return false;	}	/**	 * 对网络连接状态进行判断	 * 	 * @return true, 可用； false， 不可用	 */	public static boolean isOpenNetwork(Context ctx) {		ConnectivityManager connManager = (ConnectivityManager) ctx				.getSystemService(Context.CONNECTIVITY_SERVICE);		if (connManager.getActiveNetworkInfo() != null) {			return connManager.getActiveNetworkInfo().isAvailable();		}		return false;	}</span>