判断Android装置是否连接网络

/**
? *?判断Android客户端网络是否连接?
? * @param context
? * @return?真假
? */

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public static boolean checkNet(Context context) {				try {			ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);			if (connectivity != null) {							NetworkInfo info = connectivity.getActiveNetworkInfo();				if (info != null && info.isConnected()) {									if (info.getState() == NetworkInfo.State.CONNECTED) {						return true;					}				}			}		} catch (Exception e) {		return false;}		return false;	}