[Bug]: Linux bug on batteryState getter

Open packages/battery_plus/battery_plus/lib/src/battery_plus_linux.dart and compare the batteryState cleanup callback with the batteryLevel implementation. Confirm that each batteryState request closes its D-Bus client when complete, then run the package's relevant checks or example to verify the behavior.

Platform

Debian 12

Plugin

battery_plus

Version

7.1.1

Flutter SDK

3.41.9

Steps to reproduce

Just do a get on battery state.
I didn't test as I currently don't have time but here the code found here : https://github.com/fluttercommunity/plus_plugins/blob/main/packages/battery_plus/battery_plus/lib/src/battery_plus_linux.dart

  /// Returns the current battery state.
  @override
  Future<BatteryState> get batteryState {
    final client = createClient();
    return client
        .connect()
        .then((_) => client.displayDevice.state.toBatteryState())
        .whenComplete(() => client.close);
  }

The line .whenComplete(() => client.close); should be .whenComplete(() => client.close()); as done juste before for the battery level :

  /// Returns the current battery level in percent.
  @override
  Future<int> get batteryLevel {
    final client = createClient();
    return client
        .connect()
        .then((_) => client.displayDevice.percentage.round())
        .whenComplete(() => client.close());
  }

The Dbus client behind is never closed, and each call create a new one. There is a risk to reach OS limits here.

Code Sample

Logs

No logs or errors to report

Flutter Doctor

[✓] Flutter (Channel stable, 3.41.9, on Debian GNU/Linux 12 (bookworm) 6.1.0-52-amd64, locale en_US.UTF-8) [210ms]
    • Flutter version 3.41.9 on channel stable at /data/develop/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 00b0c91f06 (4 months ago), 2026-04-29 10:03:19 -0700
    • Engine revision 42d3d75a56
    • Dart version 3.11.5
    • DevTools version 2.54.2
    • 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, enable-uiscene-migration

[✗] Android toolchain - develop for Android devices [148ms]
    ✗ Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/to/linux-android-setup for detailed instructions).
      If the Android SDK has been installed to a custom location, please use
      `flutter config --android-sdk` to update to that location.


[✗] Chrome - develop for the web (Cannot find Chrome executable at google-chrome) [67ms]
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.

[✓] Linux toolchain - develop for Linux desktop [2.1s]
    • Debian clang version 14.0.6
    • cmake version 3.25.1
    • ninja version 1.11.1
    • pkg-config version 1.8.1
    • GL_EXT_framebuffer_blit: no
    • GL_EXT_texture_format_BGRA8888: no

[✓] Connected device (1 available) [202ms]
    • Linux (desktop) • linux • linux-x64 • Debian GNU/Linux 12 (bookworm) 6.1.0-52-amd64

[✓] Network resources [637ms]
    • All expected network resources are available.

! Doctor found issues in 2 categories.

Checklist before submitting a bug

• I searched issues in this repository and couldn't find such bug/problem
• I Google'd a solution and I couldn't find it
• I searched on StackOverflow for a solution and I couldn't find it
• I read the README.md file of the plugin
• I'm using the latest version of the plugin
• All dependencies are up to date with flutter pub upgrade
• I did a flutter clean
• I tried running the example project