判断Android设备是否连接网络

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

 

 

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;
	}