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Nougat

IMPORTANT: future support by ANDROID OS (9,10+) can be disabled - you are buying this app for your current tested version of Android OS

https://developer.android.com/reference/android/net/wifi/WifiManager.html#startScan()
"This method was deprecated in API level 28. The ability for apps to trigger scan requests will be removed in a future release. "

Android PIE 9 - 4 scans per 2 minutes probably
Android Q 10 - probably without any wifi scan support

Wifi Heat Map let you create heat map of wifi signal quality in your flat, house, apartment or shop. Just draw your flat on the paper or use existing plans, take a picture by device camera. After that just walk in desired space and click on display on your exact location. Signal quality of your wifi will be placed on that map.

!!! Important NOTE:
As announced on Google's blog ( https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html ) all apps which will be updated on Google Play will have to switch to current Android SDK (software development kit). Apps with older SDK with no run-time permission model will not be able to publish updates.

Because of this all apps (this also) will eventually require LOCATION permission as noted here:
official website android.com: http://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-hardware-id

"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:"
重要提示：ANDROID OS（9,10 +）的未来支持可以被禁用 - 您正在为当前经过测试的Android OS版本购买此应用程序

https://developer.android.com/reference/android/net/wifi/WifiManager.html#startScan（）
“此方法在API级别28中已弃用。应用程序触发扫描请求的功能将在未来版本中删除。”

Android PIE可能每2分钟扫描9到4次
Android Q 10 - 可能没有任何wifi扫描支持

Wifi热图可让您在公寓，住宅，公寓或商店中创建无线信号质量的热图。只需在纸上画平或使用现有的计划，通过设备相机拍照。之后，只需走进所需的空间，然后点击您确切位置的显示。您的wifi的信号质量将被放置在该地图上。

！重要的提示：
正如Google的博客（https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html）所宣布的那样，所有将在Google Play上更新的应用都必须切换到当前的Android SDK（软件开发工具包）。使用没有运行时权限模型的旧SDK的应用程序将无法发布更新。

因此，所有应用程序（这也是）最终都需要LOCATION权限，如下所示：
官方网站android.com:http://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-hardware-id

“要通过蓝牙和Wi-Fi扫描访问附近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：”


应用程序让你在你的单位，房屋或商店创建WiFi信号质量的热图。

Wifi Heat Map - Survey

Wifi Heat Map - Survey的最新版本

其他版本