[Bug report] Android `getAssetListRange` slow with many files

[pierrexn]

Version

3.8.3

Platforms

Android

Device Model

Samsung S20+

flutter info

[!] Flutter (Channel stable, 3.38.5, on Microsoft Windows [version 10.0.26100.7462], locale fr-FR) [337ms]
    • Flutter version 3.38.5 on channel stable at C:\flutter
    ! The flutter binary is not on your path. Consider adding C:\flutter\bin to your path.
    ! The dart binary is not on your path. Consider adding C:\flutter\bin to your path.
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision f6ff1529fd (4 weeks ago), 2025-12-11 11:50:07 -0500
    • Engine revision 1527ae0ec5
    • Dart version 3.10.4
    • DevTools version 2.51.1
    • Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios, cli-animations, enable-native-assets, omit-legacy-version-file, enable-lldb-debugging
    • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and upgrades.

[√] Windows Version (Windows 11 or higher, 24H2, 2009) [1 887ms]

[!] Android toolchain - develop for Android devices (Android SDK version 36.1.0-rc1) [3,6s]
    • Android SDK at C:\Users\pierre\AppData\Local\Android\sdk
    • Emulator version 36.1.9.0 (build_id 13823996) (CL:N/A)
    • Platform android-36, build-tools 36.1.0-rc1
    • Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 21.0.8+-14196175-b1038.72)

[√] Chrome - develop for the web [127ms]
[√] Visual Studio - develop Windows apps (Visual Studio Professional 2022 17.14.15 (September 2025)) [126ms]
    • Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Professional
    • Visual Studio Professional 2022 version 17.14.36511.14
    • Windows 10 SDK version 10.0.26100.0

[√] Connected device (4 available) [318ms]
    • SM G985F (mobile) • R58N330DJTH • android-arm64  • Android 13 (API 33)

[√] Network resources [606ms]
    • All expected network resources are available.

! Doctor found issues in 2 categories.

How to reproduce?

getAssetListRange is very slow when getting a lot of files, checkIfExists should be False in

flutter_photo_manager/android/src/main/kotlin/com/fluttercandies/photo_manager/core/utils/AndroidQDBUtils.kt

Line 213 in 7716cda

cursor.toAssetEntity(context, throwIfNotExists = false)?.apply {

Logs

Example code (optional)

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[fluttercandies-dev]

AI Summary: Android getAssetListRange is very slow, especially with many files. The user suggests checkIfExists should be False in AndroidQDBUtils.kt to improve performance.