如果GPS关闭，WiFi getScanResults将返回一个空列表. (Android 6.0.1) [英] WiFi getScanResults returns an empty list if GPS is off. (Android 6.0.1)

问题描述

我试图在此gif中解释问题

i tried to explain the problem in this gif

基本上，该测试应用会收到"RSSI_CHANGED"意图，并在屏幕上显示扫描结果.

basically, this test app receives an "RSSI_CHANGED" intent and displays the scan results on the screen.

除非启用了GPS，否则扫描结果始终为空.

scan results are always empty unless GPS is enabled.

我想我的问题是为什么?

要通过蓝牙和Wi-Fi扫描访问附近的外部设备的硬件标识符，您的应用现在必须具有ACCESS_FINE_LOCATION或ACCESS_COARSE_LOCATION权限

To access the hardware identifiers of nearby external devices via Bluetooth and Wi-Fi scans, your app must now have the ACCESS_FINE_LOCATION or ACCESS_COARSE_LOCATION permissions

我已授予"ACCESS_COARSE_LOCATION"

I have "ACCESS_COARSE_LOCATION" granted

推荐答案

Google，Apple，Microsoft等人建立，维护和销售Wi-Fi路由器及其位置的数据库.通过要求您在扫描附近的WiFi网络时启用定位功能，它们可以获取并更新这些数据.

Google, Apple, Microsoft, et al, build, maintain, and sell databases of Wi-Fi routers and their locations. By requiring you to enable location functionality when scanning nearby WiFi networks, they acquire and update these data.

这篇关于如果GPS关闭，WiFi getScanResults将返回一个空列表. (Android 6.0.1)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！