<uses-permission android:name="android.permission.INTERNET"></uses-permission>  
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>  
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>  
<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission> 

/**
     * 检查网络是否可用
     *
     * @param paramContext
     * @return
     */
    public static boolean checkEnable(Context paramContext) {
        boolean i = false;
        NetworkInfo localNetworkInfo = ((ConnectivityManager) paramContext
                .getSystemService("connectivity")).getActiveNetworkInfo();
        if ((localNetworkInfo != null) && (localNetworkInfo.isAvailable()))
            return true;
        return false;
    }

    /**
     * 将ip的整数形式转换成ip形式
     *
     * @param ipInt
     * @return
     */
    public static String int2ip(int ipInt) {
        StringBuilder sb = new StringBuilder();
        sb.append(ipInt & 0xFF).append(".");
        sb.append((ipInt >> 8) & 0xFF).append(".");
        sb.append((ipInt >> 16) & 0xFF).append(".");
        sb.append((ipInt >> 24) & 0xFF);
        return sb.toString();
    }

    /**
     * 获取当前ip地址
     *
     * @param context
     * @return
     */
    public static String getLocalIpAddress(Context context) {
        try {

            WifiManager wifiManager = (WifiManager) context
                    .getSystemService(Context.WIFI_SERVICE);
            WifiInfo wifiInfo = wifiManager.getConnectionInfo();
            int i = wifiInfo.getIpAddress();
            return int2ip(i);
        } catch (Exception ex) {
            return " 获取IP出错鸟!!!!请保证是WIFI,或者请重新打开网络!\n" + ex.getMessage();
        }
        // return null;
    }