There appears to be a bug with on Kindle / FireOS where translucent activities can occasionally disappear when returning back to them.
Reproduced on a number of kindles, but the one in the video is as follows
Model: Fire HD 8 (10th generation)
Build: 0022247233412
Note: This does not happen every time, sometimes it happens on the first try, other times it takes many (tens of tries).
Note: This appears to only happen when using a custom tabs view intent to open the Silk browser, and not a regular view intent.
Video: https://imgur.com/a/mi43G3s
- Open the example app
- Click “With Custom Tabs” button
- Observe the translucent activity appearing with an additional “With Custom Tabs” button
- Click the button that appeared
- Assuming Silk is the default browser, observe Silk opening a web page via custom tabs
- Press the back button
- Observe the translucent activity being visible, and very quickly dissapearing
- Observe the ability to interact with the invisible overlay activity as if it were visible
- Observe pressing back briefly shows the activity finishing with an exit transition
- Observe pressing the button defined in step 2 briefly shows the activity starting with an enter transition
- Observe the translucent activity being invisible again, but remaining intractable as if it were visible