Default splash screen persists after following the setup steps

[ivanhercaz]

Describe the bug

Splash screen is showing the same color and icon after follow all the required steps in the documentation of the package. I even tried to clean all the data of application in the smartphone, uninstall it, restart and install it again. I also retry all the process with a totally new application.

I really don't think it may be a real bug, but maybe some misunderstanding I am having, although it seems very simple, so I have not clear what is wrong.

Configuration

flutter_native_splash:
  color: "#ff0000"
  color_dark: "#ff0000"
  image: "assets/logo.png"
  image_dark: "assets/logo.png"
  android12:
    color: "#ff0000"
    color_dark: "#ff0000"
    image: "assets/logo.png"
    image_dark: "assets/logo.png"

Device (please complete the following information):

• Device: Realme RMX3710
• OS: realme UI 4.0 (Android 13)

To Reproduce Steps to reproduce the behavior, using the example app:

1. Add flutter_native_splash: ^2.3.4 to dependencies.
2. Set the splash screen (above configuration).
3. Run the create command: dart run flutter_native_splash:create
4. flutter run and check the log attached below to see if there is some error (it seems not):

[flutter_application_1] flutter run                                   main  ✈ ✱
Launching lib/main.dart on RMX3710 in debug mode...
Running Gradle task 'assembleDebug'...                             12,3s
✓  Built build/app/outputs/flutter-apk/app-debug.apk.
Installing build/app/outputs/flutter-apk/app-debug.apk...           3,9s
Syncing files to device RMX3710...                                  69ms

A Dart VM Service on RMX3710 is available at:
http://127.0.0.1:39393/CporL13lIik=/
I/mali    (16469): [DebugProp] GPU Debug-Mechanism Disable !
D/hw-ProcessState(16469): Binder ioctl to enable oneway spam detection failed: Invalid argument
The Flutter DevTools debugger and profiler on RMX3710 is available at:
http://127.0.0.1:9104?uri=http://127.0.0.1:39393/CporL13lIik=/
D/BLASTBufferQueue(16469): [SurfaceView[com.example.flutter_application_1/com.example.flutter_application_1.MainActivity]#1](f:0,a:1) acquireNextBufferLocked size=1080x2268 mFrameNumber=1 applyTransaction=true mTimestamp=845747668434(auto) mPendingTransactions.size=0 graphicBufferId=70733816397824 transform=0
D/VRI[MainActivity](16469): registerCallbacksForSync syncBuffer=false
D/BLASTBufferQueue(16469): [VRI[MainActivity]#0](f:0,a:1) acquireNextBufferLocked size=1080x2400 mFrameNumber=1 applyTransaction=true mTimestamp=845802004434(auto) mPendingTransactions.size=0 graphicBufferId=70733816397826 transform=0
D/VRI[MainActivity](16469): Received frameCommittedCallback lastAttemptedDrawFrameNum=1 didProduceBuffer=true syncBuffer=false
W/Parcel  (16469): Expecting binder but got null!
D/VRI[MainActivity](16469):  debugCancelDraw  cancelDraw=false,count = 240,android.view.ViewRootImpl@3813173
D/VRI[MainActivity](16469): draw finished.
D/VRI[MainActivity](16469): onFocusEvent true
D/OplusScrollToTopManager(16469): com.example.flutter_application_1/com.example.flutter_application_1.MainActivity,This DecorView@dcece18[MainActivity] change focus to true

The only suspicious log line is:

W/Parcel  (16469): Expecting binder but got null!

But that's related with not having WidgetsFlutterBinding.ensureInitialized(); before runApp(const MyApp());, but doesn't affect to have it.

Additional context

As I commented above, I really don't have clear if it is a bug or something I configured wrong, but it seems really strange to me because it even happens with a new application.

android/app/src/main/res/drawable/launch_background.xml file has the correct code:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <bitmap android:gravity="fill" android:src="@drawable/background"/>
    </item>
    <item>
        <bitmap android:gravity="center" android:src="@drawable/splash"/>
    </item>
</layer-list>

Same in the other cases and in drawable-hdpi and other related directories, the splash.png is the correct image. The Flutter logo is just in mipmap-* for the icon launcher, ic_launcher.png. In values/styles.xml there is:

<item name="android:windowBackground">@drawable/launch_background</item>

Does someone has any idea? Thank you very much in advance!

Regards, Iván

[ivanhercaz]

Well, a bit of progress. The same configuration in a different app works on iOS:

• Device: iPad Air (4th gen).
• OS: iPadOS 16.6.1

I will try to test it in another Android device to discard if it is just a problem with my current smartphone. I will also test the another sample app I am using for Android.

[jonbhanson]

You may want to try it on an Android emulator. Sometimes the Android clone operating systems do not implement their splash screens according to the Android API.

[ivanhercaz]

@jonbhanson, I tried just now with an Android emulator (Pixel 2 XL API 31) but it doesn't work either. Strange...

[ivanhercaz]

@jonbhanson, already found my error and I could confirm it was an error and not a bug! Looking on res directory I decided to check the values-v31/styles.xml and I saw there isn't any mention to the background color nor the icon nor the launcher theme. I edited it manually and it works.

I decided to reread one more time my configuration and I saw the error android12 must be android_12... I don't know why I didn't see it before, I think I need to sleep more 😅 .

Thank you for your attention and for this awesome package! It saves a lot of time. When I have a little more economic slack, I will invite you to a coffee!

[jonbhanson]

Thanks for the feedback @ivanhercaz and I'm glad you got it resolved. This gives me an idea though: the package should check each parameter and give the user an error message on an invalid parameter. I'll see if I can add this in the next version.

[ivanhercaz]

This gives me an idea though: the package should check each parameter and give the user an error message on an invalid parameter.

Wow! That's a great idea and a helpful hint help for distracted people like me 😅 .