Android获取wifi的ip地址

冷不防 2021-09-21 16:28 435阅读 0赞

> **博客来源：**
> 
> 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();
        }