[BUG] `placeholderImage` doesn't work

[Farrukh1198]

Describe The Bug
I want to show my custom tile image while tile is loading. For this purpose I use placeholderImage option of TileLayerOptions but I still get grey tiles instead of my image.

Expected Behavior
I expected my custom tiles to be shown while map tiles are loading

Screenshots & Recordings
I think it's clear without screenshots

---

Doctors Report

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.0.0, on Microsoft Windows [Version 10.0.14393], locale ru-RU)
[!] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
    X cmdline-tools component is missing
      Run `path/to/sdkmanager --install "cmdline-tools;latest"`
      See https://developer.android.com/studio/command-line for more details.
    X Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
[√] Chrome - develop for the web
[X] Visual Studio - develop for Windows
    X Visual Studio not installed; this is necessary for Windows development.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2021.1)
[√] VS Code (version 1.67.2)
[√] Connected device (3 available)
[√] HTTP Host Availability

To Reproduce
Steps to reproduce the behavior:

My code is

                TileLayerOptions(
                  updateInterval: 100,
                  placeholderImage: Image.asset('uploads/tile.png').image,
                  urlTemplate:
                      "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
                  subdomains: ['a', 'b', 'c'],
                )

---

Severity
This will help us to label the issue quicker and decide what needs attention first. Only choose fatal if the entire app crashes, otherwise choose non-fatal.

• Non-Fatal

Frequency/Rarity
This will help us to label the issue quicker and decide what needs attention first.

• Always

Applicable Platforms
Only select those that you've tested on - one or more. If possible, test on a variety of platforms.

• Android

[JaffaKetchup]

Hi there,

Do you get any errors trying to retrieve the image? Can you get the same image from other places in the app?

If those show no apparent issues, try this instead of your current method of getting the image:

// Image.asset('uploads/tile.png').image
AssetImage('uploads/tile.png')

Let me know if anything shows up!

[Farrukh1198]

Hi there,

Do you get any errors trying to retrieve the image? Can you get the same image from other places in the app?

If those show no apparent issues, try this instead of your current method of getting the image:

// Image.asset('uploads/tile.png').image
AssetImage('uploads/tile.png')

Let me know if anything shows up!

I don't get any errors. But grey tile shows up instead of my image like placeholderImage doesn't exist

[JaffaKetchup]

OK. I'm assuming that the same image can be loaded elsewhere in the app? This would be good to check.
If it can be, maybe try a MemoryImage and copy in some raw data just for testing?

[Farrukh1198]

OK. I'm assuming that the same image can be loaded elsewhere in the app? This would be good to check. If it can be, maybe try a MemoryImage and copy in some raw data just for testing?

Hi. Thanks for your reply. The same image loaded inside or using other widgets. But to my great regret, I could not deal with MemoryImage, for which I feel uncomfortable in front of you.

[JaffaKetchup]

Nah, no need to be uncomfortable! Everyone has somethings they can't do, and I'm here to help (along with other maintainers) :). Maybe in the future you will be the best at Flutter!

In this case, I'll have to do some deeper digging and try to reproduce myself. Thanks for the info, it helps me to get to the bottom of the issue better!

[ibrierley]

I think actually placeholderImage has become deprecated ? Someone tell me I'm not going mad! Just noticed this when I was surprised I couldn't find it in the code being used....

#572 (comment)

[JaffaKetchup]

That's interesting, does anything say why it was deprecated? Seems like useful functionality to me!

[Farrukh1198]

Indeed, it helps a lot to highlight your brand and product.

[Farrukh1198]

Nah, no need to be uncomfortable! Everyone has somethings they can't do, and I'm here to help (along with other maintainers) :). Maybe in the future you will be the best at Flutter!

In this case, I'll have to do some deeper digging and try to reproduce myself. Thanks for the info, it helps me to get to the bottom of the issue better!

I do appreciate your efforts to help me. And thank you for your wishes!

[JaffaKetchup]

Hi there,
With the release of v1.0.0, we've deprecated this feature for now within the codebase. For this feature to return it will need to be recreated from scratch.

[JaffaKetchup]

Thanks for your report!