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
? */

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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;}