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突发奇想获取IP的地址进行搞事，然后记录一下获取设备的ip地址，话不多说，硬核开整

要申请的权限

<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>

 

java代码的方法

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

    /**
     * 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 "0";
        }
    }

    /**
     * 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();
    }