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frameBuilder or loadingProgressBuilder error handling support #49292

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dballesteros7 opened this issue Jan 22, 2020 · 0 comments
Open

frameBuilder or loadingProgressBuilder error handling support #49292

dballesteros7 opened this issue Jan 22, 2020 · 0 comments
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c: proposal A detailed proposal for a change to Flutter customer: dream (g3) framework flutter/packages/flutter repository. See also f: labels. P3 Issues that are less important to the Flutter project team-framework Owned by Framework team triaged-framework Triaged by Framework team

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@dballesteros7
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Use case

The spec for image loading for our product specifies that there is a different placeholder image shown before an image is loaded and when the image loading fails. Let's call it an errorPlaceholder.

Implementing this with the current Image widget is not possible because there's no way to access the onError callback from the underlying ImageStream. Currently, this requires re-implementing the Image widget.

Proposal

Add a way in frameBuilder or the loadingProgressBuilder to access the onError callback of the underlying stream.
@VladyslavBondarenko VladyslavBondarenko added framework flutter/packages/flutter repository. See also f: labels. c: proposal A detailed proposal for a change to Flutter labels Jan 22, 2020
@goderbauer goderbauer added the P3 Issues that are less important to the Flutter project label Oct 10, 2022
@flutter-triage-bot flutter-triage-bot bot added team-framework Owned by Framework team triaged-framework Triaged by Framework team labels Jul 8, 2023
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c: proposal A detailed proposal for a change to Flutter customer: dream (g3) framework flutter/packages/flutter repository. See also f: labels. P3 Issues that are less important to the Flutter project team-framework Owned by Framework team triaged-framework Triaged by Framework team
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@goderbauer @dballesteros7 @VladyslavBondarenko