Inconsistent default bot prompt behavior between Android and iOS

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
78/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Active
Tech stack
dart, flutter, ios

Research direction

Start at the iOS plugin path used by LineSDK.instance.login() when no LoginOption is supplied, and trace how botPrompt is read before the authorization request. Verify that the fallback is "normal" while explicitly supplied "normal" and "aggressive" values remain unchanged; done means matching Android behavior for default and explicit values.

Written by the indexing model from the issue text.

Description

When calling LineSDK.instance.login() without a LoginOption, the plugin handles botPrompt differently across platforms:

  • Android: Defaults to "normal".
  • iOS: Leaves botPromptStyle as nil, omitting bot_prompt from the authorization request.

This can cause different add-friend prompt behavior for the same Flutter login call.

Expected behavior

Default to "normal" on both platforms when no value is provided, while preserving explicitly supplied "normal" and "aggressive" values.

Proposed fix

Apply the "normal" fallback when reading botPrompt in the iOS plugin.

Dominant language
Dart
Stars
225
Forks
60
PR merge metrics
No merged PRs in 30d

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