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Add a parameter to configure InputDecorator hint fade animations duration #135211

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bleroux
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@bleroux bleroux commented Sep 21, 2023

Description

This PR adds a parameter to configure the input decorator hint fade transition duration.

This animation is not part of the Material specification.
Removing it was considered but it breaks internal tests (see #107406).
I also considered several ways to avoid the fade animation (setting duration to 0, removing the hint text, etc) but it breaks many existing tests that assumes the hint text to be visible.

To mitigate the issue in a non disruptive way, I set the default duration to 20ms (an arbitrary short value).

Related Issue

Fixes #20283.

Tests

Adds 3 tests, updates 3 tests.

@github-actions github-actions bot added framework flutter/packages/flutter repository. See also f: labels. f: material design flutter/packages/flutter/material repository. labels Sep 21, 2023
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Changing the default to 20ms was a nice compromise. LGTM

@HansMuller HansMuller added the autosubmit Merge PR when tree becomes green via auto submit App label Sep 21, 2023
@auto-submit auto-submit bot merged commit de44daf into flutter:master Sep 21, 2023
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 21, 2023
@bleroux bleroux deleted the add_input_decorator_hint_text_fade_animation_duration_parameter branch September 21, 2023 18:15
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 21, 2023
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 27, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 27, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 27, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 27, 2023
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 28, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 28, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 28, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 28, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Sep 28, 2023
Mairramer pushed a commit to Mairramer/flutter that referenced this pull request Oct 10, 2023
…tion (flutter#135211)

## Description

This PR adds a parameter to configure the input decorator hint fade transition duration.

This animation is not part of the Material specification.
Removing it was considered but it breaks internal tests (see flutter#107406).
I also considered several ways to avoid the fade animation (setting duration to 0, removing the hint text, etc) but it breaks many existing tests that assumes the hint text to be visible.

To mitigate the issue in a non disruptive way, I set the default duration to 20ms (an arbitrary short value).

## Related Issue

Fixes flutter#20283.

## Tests

Adds 3 tests, updates 3 tests.
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 15, 2023
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Hint text should disappear instead of fade out
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