Android WifiAPI 在 Android 10+ 上真的那么糟糕吗

答案只有一半，但可能会有帮助.以下是我获取用户当前SSID的方式(您需要持有位置权限):

fun updateSsid(networkCapabilities: NetworkCapabilities) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
        currentSsid = (networkCapabilities.transportInfo as? WifiInfo)?.ssid?.trim('"')
    }
}

wifiCallback = when {
    Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
        object: ConnectivityManager.NetworkCallback(FLAG_INCLUDE_LOCATION_INFO) {
            override fun onCapabilitiesChanged(network: Network, networkCapabilities: NetworkCapabilities) {
                updateSsid(networkCapabilities)
            }
        }
    }
    Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q -> {
        object: ConnectivityManager.NetworkCallback() {
            override fun onCapabilitiesChanged(network: Network, networkCapabilities: NetworkCapabilities) {
                updateSsid(networkCapabilities)
            }
        }
    }
    else -> null
}

wifiCallback?.let {
    fragment.lifecycle.addObserver(object: DefaultLifecycleObserver {
        override fun onResume(owner: LifecycleOwner) {
            connectivityManager.registerNetworkCallback(request, it)
        }

        override fun onPause(owner: LifecycleOwner) {
            connectivityManager.unregisterNetworkCallback(it)
        }
    })
}

因此，基本上代码的各个方面都需要判断API的级别<；10、10、11和12.真是一团糟.

如果您想让用户 Select 配置的wifi，这可能非常方便:

fun showWifiDialog() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
        try {
            fragment.startActivity(Intent(android.provider.Settings.Panel.ACTION_WIFI))
        } catch (e: Exception) {
            // ignored
        }
    }
}