在Android Oreo中.活动可以进入点模式并返回启动器.
https://developer.android.com/guide/topics/ui/picture-in-picture.html
现在我是发射器.有没有办法知道目前屏幕上是否显示了一个点子窗口？
isInPictureInPictureMode() 仅指示您的应用程序pipmode,如果有其他应用程序进入pip模式,则该pipmode将为false.
退出应用程序并转到pipmode返回启动程序时,intent标志是相同的.
12-15 03:31:39.580 11671 11671 D FLAG_ACTIVITY_FORWARD_RESULT
12-15 03:31:39.580 11671 11671 D FLAG_ACTIVITY_NEW_TASK
12-15 03:31:39.580 11671 11671 D FLAG_ACTIVITY_PREVIOUS_IS_TOP
12-15 03:31:39.581 11671 11671 D FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
12-15 03:31:39.581 11671 11671 D FLAG_RECEIVER_BOOT_UPGRADE
12-15 03:31:39.581 11671 11671 D FLAG_RECEIVER_FOREGROUND
12-15 03:31:39.581 11671 11671 D FLAG_RECEIVER_INCLUDE_BACKGROUND
12-15 03:31:39.581 11671 11671 D FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS
12-15 03:31:50.174 11671 11671 D FLAG_ACTIVITY_FORWARD_RESULT
12-15 03:31:50.174 11671 11671 D FLAG_ACTIVITY_NEW_TASK
12-15 03:31:50.174 11671 11671 D FLAG_ACTIVITY_PREVIOUS_IS_TOP
12-15 03:31:50.174 11671 11671 D FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
12-15 …