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[Bug]: (share_plus) iOS drops the subject when sharing a uri

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#3,994 0 comentarios 0 reacciones 0 asignados Ver en GitHub

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Evaluación

Dificultad
2/5
Tiempo estimado
1-3 horas
Aptitud para principiantes
82/100
Tipo de issue
Error
Claridad
Bien especificado
Estado de actividad
Activo
Stack tecnológico
dart, ios, objective-c
Área
mobile

Línea de trabajo

Empieza en packages/share_plus/share_plus/ios/share_plus/Sources/share_plus/FPPSharePlusPlugin.m, siguiendo la ruta de shareUri: y comparándola con shareText: y shareFiles:. Pasa el shareTitle ya leído a través de shareUri: hacia share:withSubject:. El trabajo está terminado cuando un uso compartido de URI en iOS conserva el asunto en Mail y mantiene la vista previa enriquecida del enlace.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

bug triage
Platform

iOS 15

Plugin

share_plus

Version

13.3.0

Flutter SDK

3.44.9

Steps to reproduce
  1. On an iOS device, share a uri with a subject (see the code sample).
  2. Pick Mail in the share sheet.
  3. The Mail compose view opens with an empty subject line.

On Android the same call fills the subject, because Share.kt puts it in EXTRA_SUBJECT for a uri too. ShareParams.subject is documented as "Supported platforms: All".

This is not a duplicate of #3968, #347 or #691. Those are about the text path and Gmail. This is the uri path, where the subject never reaches the share sheet at all.

Cause

The uri branch of FPPSharePlusPlugin.m never reads the subject:

  • The subject is read into shareTitle (L294-L297), but only shareText: and shareFiles: receive it.
  • shareUri: calls share:withSubject:nil (L460-L472).
  • share:withSubject: only skips NSNull, so it sets the controller's subject to nil (L409-L411). The comment on that block says it is there to force the subject "when sharing a raw url or files", which is exactly the case that gets nil.

Suggested fix

Pass shareTitle into shareUri: and forward it to share:withSubject: instead of nil, as shareText: and shareFiles: already do. The item stays an NSURL, so the rich link preview is unaffected.

Code Sample
await SharePlus.instance.share(
  ShareParams(
    uri: Uri.parse('https://flutter.dev'),
    subject: 'Subject for Mail',
  ),
);
Logs
No error or exception. The share sheet and Mail open normally, only the subject is empty.
Flutter Doctor
[✓] Flutter (Channel stable, 3.44.9, on macOS 26.6.2 25G83 darwin-arm64, locale en-EE) [431ms]
    • Flutter version 3.44.9 on channel stable at /Users/**/.local/share/mise/http-tarballs/e5c14d6b5e917a8578327d2564ab78ece83cd685c74c29572ddaf7655f42205d
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 6b182d2c75 (8 weeks ago), 2026-08-05 10:04:07 -0700
    • Engine revision 5a2a6a42cc
    • Dart version 3.12.2
    • DevTools version 2.57.0
    • Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios, cli-animations, enable-native-assets, no-enable-swift-package-manager,
      omit-legacy-version-file, enable-lldb-debugging, no-enable-uiscene-migration

[✓] Android toolchain - develop for Android devices (Android SDK version 37.0.0) [1,412ms]
    • Android SDK at /Users/**/Library/Android/sdk
    • Emulator version 36.1.9.0 (build_id 13823996) (CL:N/A)
    • Platform android-37.0, build-tools 37.0.0
    • ANDROID_HOME = /Users/**/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/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 21.0.9+-14787801-b1163.94)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 26.6) [1,046ms]
    • Xcode at /Applications/Xcode-26.6.0.app/Contents/Developer
    • Build 17F113
    • CocoaPods version 1.17.0

[✓] Chrome - develop for the web [5ms]
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
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
Lenguaje dominante
Dart
Estrellas
1.9k
Forks
1.3k
Merge medio
6 d 16 h
PR fusionados (30 d)
16

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