public class NetUtil {
    public static final int NETWORN_NONE = 0;//無網(wǎng)絡
    public static final int NETWORN_WIFI = 1;//wife
    public static final int NETWORN_MOBILE = 2;//手機

    /**
     * 獲取當前網(wǎng)絡的狀態(tài)
     * @param context
     * @return
     */
    public static int getNetworkState(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        // Wifi
        State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_WIFI;
        }

        // 3G
        state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_MOBILE;
        }
        return NETWORN_NONE;
    }

    /**
     * 判斷是否有網(wǎng)絡
     * @param context
     * @return
     */
    public static boolean isNetConnected(Context context) {
        boolean isNetConnected;
        // 獲得網(wǎng)絡連接服務
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = connManager.getActiveNetworkInfo();
        if (info != null && info.isAvailable()) {
//				String name = info.getTypeName();
//				L.i("當前網(wǎng)絡名稱：" + name);
            isNetConnected = true;
        } else {
            L.i("沒有可用網(wǎng)絡");
            isNetConnected = false;
        }
        return isNetConnected;
    }
}