这篇文章主要介绍“Android扫描WIFI权限功能怎么实现”的相关知识，小编通过实际案例向大家展示操作过程，操作方法简单快捷，实用性强，希望这篇“Android扫描WIFI权限功能怎么实现”文章能帮助大家解决问题。
权限
根据官方文档描述，扫描WIFI需要申请相关权限，如下：
Android 13以上
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <!--在Android13以上，当usesPermissionFlags设置为neverForLocation时，无需再申请ACCESS_FINE_LOCATION权限--> <uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES" android:usesPermissionFlags="neverForLocation" /></manifest>Android 13以下
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /></manifest>需要注意，在实际测试中，Android 13以上的设备仍然需要申请android.permission.ACCESS_FINE_LOCATION才能扫描到WIFI，测试设备为小米13。
注册广播监听扫描状态
通过注册广播监听WIFI扫描是否完成，代码如下：
class WIFIExampleActivity : AppCompatActivity() { private val scanResultReceiver = object : BroadcastReceiver() { override fun onReceive(context: Context?, intent: Intent?) { if (intent?.getBooleanExtra(WifiManager.EXTRA_RESULTS_UPDATED, false) == true) { // 扫描完成 } } } override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) // 注册广播 registerReceiver(scanResultReceiver, IntentFilter().apply { addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION) }) } override fun onDestroy() { super.onDestroy() // 移除广播 unregisterReceiver(scanResultReceiver) }}扫描WIFI
通过WifiManager扫描WIFI，并获取扫描结果，代码如下：
// 列表适配器class WIFIAdapter : RecyclerView.Adapter<WIFIAdapter.WIFIViewHolder>() { private val wifiData = ArrayList<WIFIEntity>() override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): WIFIViewHolder { return WIFIViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.layout_wifi_item, parent, false)) } override fun onBindViewHolder(holder: WIFIViewHolder, position: Int) { wifiData[position].run { holder.tvWifiName.text = wifiSSID holder.tvWifiSSID.text = wifiBSSID holder.ivWifiStrength.setImageResource(getStrengthIcon(wifiStrength)) holder.ivNeedPassword.setImageResource(if (needPassword) R.drawable.icon_lock else R.drawable.icon_unlock) } } override fun getItemCount(): Int { return wifiData.size } fun setNewData(wifiData: ArrayList<WIFIEntity>?) { val lastItemCount = itemCount if (lastItemCount != 0) { this.wifiData.clear() notifyItemRangeRemoved(0, lastItemCount) } wifiData?.let { this.wifiData.addAll(it) } notifyItemChanged(0, itemCount) } private fun getStrengthIcon(wifiStrength: Int): Int { return when (wifiStrength) { 0 -> R.drawable.wifi_strength_0 1 -> R.drawable.wifi_strength_1 2 -> R.drawable.wifi_strength_2 else -> R.drawable.wifi_strength_3 } } interface ItemClickListener { fun onItemClick(wifiInfo: WIFIEntity) } class WIFIViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) { val tvWifiName: AppCompatTextView = itemView.findViewById(R.id.tv_wifi_name) val tvWifiSSID: AppCompatTextView = itemView.findViewById(R.id.tv_wifi_ssid) val ivNeedPassword: AppCompatImageView = itemView.findViewById(R.id.iv_need_password) val ivWifiStrength: AppCompatImageView = itemView.findViewById(R.id.iv_wifi_strength) }}class WIFIExampleActivity : AppCompatActivity() { private lateinit var binding: LayoutWifiExampleActivityBinding private val wifiAdapter = WIFIAdapter() private var wifiManager: WifiManager? = null private var requestPermissionName: String = Manifest.permission.ACCESS_FINE_LOCATION private val requestSinglePermissionLauncher = registerForActivityResult(ActivityResultContracts.RequestPermission()) { granted: Boolean -> if (granted) { // 申请定位权限通过，扫描WIFI if (wifiManager?.isWifiEnabled == true) { wifiManager?.startScan() } } else { //未同意授权 if (!shouldShowRequestPermissionRationale(requestPermissionName)) { //用户拒绝权限并且系统不再弹出请求权限的弹窗 //这时需要我们自己处理，比如自定义弹窗告知用户为何必须要申请这个权限 } } } private val scanResultReceiver = object : BroadcastReceiver() { override fun onReceive(context: Context?, intent: Intent?) { if (intent?.getBooleanExtra(WifiManager.EXTRA_RESULTS_UPDATED, false) == true) { val wifiData = ArrayList<WIFIEntity>() wifiManager?.scanResults?.forEach { val ssid = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { it.wifiSsid.toString() } else { it.SSID } val bssid = it.BSSID // 获取WIFI加密类型 val capabilities = it.capabilities // 获取WIFI信号强度 val level = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) { wifiManager?.calculateSignalLevel(it.level) ?: 0 } else { WifiManager.calculateSignalLevel(it.level, 4) } wifiData.add(WIFIEntity(ssid, bssid, capabilities.contains("wpa", true) || capabilities.contains("web", true), capabilities, level)) } // 根据信号强度降序排列 wifiData.sortByDescending { it.wifiStrength } wifiAdapter.setNewData(wifiData) } } } override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = DataBindingUtil.setContentView(this, R.layout.layout_wifi_example_activity) wifiManager = applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager binding.includeTitle.tvTitle.text = "WIFI Example" binding.btnStartScan.setOnClickListener { // 检测定位权限 if (ActivityCompat.checkSelfPermission(this, requestPermissionName) == PackageManager.PERMISSION_GRANTED) { if (wifiManager?.isWifiEnabled == true) { wifiManager?.startScan() } } else { requestSinglePermissionLauncher.launch(requestPermissionName) } } binding.rvWifiInfo.adapter = wifiAdapter registerReceiver(scanResultReceiver, IntentFilter().apply { addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION) }) } override fun onDestroy() { super.onDestroy() unregisterReceiver(scanResultReceiver) }}关于“Android扫描WIFI权限功能怎么实现”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识，可以关注编程网行业资讯频道，小编每天都会为大家更新不同的知识点。
