frameworks/opt/net/wifi/service/java/com/android/server/wifi/ScanRequestProxy.java
这个也就是说前台应用可以在120s(2分钟) 扫描 4 次
* a) Each foreground app can request a max of
* {@link #SCAN_REQUEST_THROTTLE_MAX_IN_TIME_WINDOW_FG_APPS} scan every
* {@link #SCAN_REQUEST_THROTTLE_TIME_WINDOW_FG_APPS_MS}.
这个的意思是BackGroud应用可以没30*60s(30分钟)扫描一次
* b) Background apps combined can request 1 scan every
* {@link #SCAN_REQUEST_THROTTLE_INTERVAL_BG_APPS_MS}.
public static final int SCAN_REQUEST_THROTTLE_TIME_WINDOW_FG_APPS_MS = 120 * 1000;
public static final int SCAN_REQUEST_THROTTLE_MAX_IN_TIME_WINDOW_FG_APPS = 4;
public static final int SCAN_REQUEST_THROTTLE_INTERVAL_BG_APPS_MS = 30 * 60 * 1000;
与android wifi api的介绍一样:
WLAN 扫描功能概览 | Android 开发者 | Android Developers
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