FlexibleSpaceBar background disappears when app resumes on Android

[kroikie]

node: this issue does not happen on iOS so it looks like it is Android specific.

Steps to Reproduce

1. Create a SliverAppBar with a flexibleSpaceBar that has a background image set.
2. Run app on Android so that background image is visible
3. Go to home screen
4. Return to app
5. Note that the background image is not visible. If you adjust the SliverAppBar the image returns.

Logs

D/EGL_emulation(21302): eglMakeCurrent: 0xebf05a20: ver 3 0 (tinfo 0xd55a9dc0)
D/EGL_emulation(21302): eglCreateContext: 0xf0545100: maj 3 min 0 rcv 3
D/EGL_emulation(21302): eglMakeCurrent: 0xf0545100: ver 3 0 (tinfo 0xebc133d0)
D/EGL_emulation(21302): eglMakeCurrent: 0xf0545100: ver 3 0 (tinfo 0xd55a9410)
D/EGL_emulation(21302): eglMakeCurrent: 0xebf05a20: ver 3 0 (tinfo 0xd55a9dc0)

###Analyze

No issues found! (ran in 2.7s)

##Flutter doctor

[✓] Flutter (Channel master, v0.11.10-pre.1, on Mac OS X 10.13.6 17G3025, locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
[!] iOS toolchain - develop for iOS devices (Xcode 10.0)
    ✗ Verify that all connected devices have been paired with this computer in Xcode.
      If all devices have been paired, libimobiledevice and ideviceinstaller may require updating.
      To update with Brew, run:
        brew update
        brew uninstall --ignore-dependencies libimobiledevice
        brew uninstall --ignore-dependencies usbmuxd
        brew install --HEAD usbmuxd
        brew unlink usbmuxd
        brew link usbmuxd
        brew install --HEAD libimobiledevice
        brew install ideviceinstaller
    ✗ ios-deploy out of date (1.9.4 is required). To upgrade with Brew:
        brew upgrade ios-deploy
[✓] Android Studio (version 3.2)
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] IntelliJ IDEA Ultimate Edition (version 2018.2.5)
[!] VS Code (version 1.28.1)
[✓] Connected device (2 available)

[diegoveloper]

I can't repo this issue on Android , could you add an image and a simple code to test?

[✓] Flutter (Channel dev, v0.11.9, on Mac OS X 10.14.1 18B75, locale en-PE)

[kroikie]

Well of course! when I try to produce a simple example of this and respond with a snarky emoji it works as expected on both emulator and device.

Likely user error on this one, sorry for the distraction.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.