解決 Android 狀態欄的感嘆號問題
Mac 可以通過 Homebrew 完成修改驗證服務器的操作。
此命令支持 Android 11.x 及以上版本
adb shell settings put global captive_portal_mode 0
adb shell settings put global captive_portal_https_url https://taxiway.uk/generate_204
此命令支持 Android 10.x/9.x/8.x/7.x
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew cask install android-platform-tools
adb devices
adb shell settings put global captive_portal_detection_enabled 1
adb shell settings put global captive_portal_mode 1
adb shell settings put global captive_portal_use_https 0
adb shell settings put global captive_portal_server taxiway.uk
adb shell settings put global captive_portal_http_url http://taxiway.uk/generate_204
adb shell settings put global captive_portal_https_url https://taxiway.uk/generate_204
其他操作系統自行手動安裝對應平台 Google 的 SDK Platform Tools
設置參數：
captive_portal_detection_enabled: 5.0 ~ 7.1.1
- Setting to turn off captive portal detection. Feature is enabled by default and the setting needs to be set to 0 to disable it.
captive_portal_mode: 7.1.2 ~
- 0: CAPTIVE_PORTAL_MODE_IGNORE Don’t attempt to detect captive portals.
- 1: CAPTIVE_PORTAL_MODE_PROMPT When detecting a captive portal, display a notification that prompts the user to sign in.
- 2: CAPTIVE_PORTAL_MODE_AVOID When detecting a captive portal, immediately disconnect from the network and do not reconnect to that network in the future.
captive_portal_use_https: 7.0 ~
- Whether to use HTTPS for network validation. This is enabled by default and the setting needs to be set to 0 to disable it. This setting is a misnomer because captive portals don’t actually use HTTPS, but it’s consistent with the other settings.
captive_portal_server: 5.0 ~ 7.1.0
- The server used for captive portal detection upon a new conection. A 204 response code from the server is used for validation.
captive_portal_http_url: 7.1.1 ~
- The URL used for HTTP captive portal detection upon a new connection. A 204 response code from the server is used for validation.
captive_portal_https_url: 7.1.1 ~
- The URL used for HTTPS captive portal detection upon a new connection. A 204 response code from the server is used for validation.
captive_portal_fallback_url: 7.1.1 ~
- The URL used for fallback HTTP captive portal detection when previous HTTP and HTTPS captive portal detection attemps did not return a conclusive answer.
captive_portal_user_agent: 7.1.1 ~
- Which User-Agent string to use in the header of the captive portal detection probes. The User-Agent field is unset when this setting has no value (HttpUrlConnection default).
本文參考：
其他第三方提供驗證服務器
小米： connect.rom.miui.com/generate_204
華為： connectivitycheck.platform.hicloud.com/generate_204
Oppo: conn1.oppomobile.com/generate_204
Vivo： wifi.vivo.com.cn/generate_204
Google 大陸： g.cn/generate_204
Cloudflare： cp.cloudflare.com/generate_204