dcd23e188b
Issue number: Internal --------- <!-- Please do not submit updates to dependencies unless it fixes an issue. --> <!-- Please try to limit your pull request to one type (bugfix, feature, etc). Submit multiple pull requests if needed. --> ## What is the current behavior? <!-- Please describe the current behavior that you are modifying. --> Toast does not support the dynamic type feature in iOS. _A brief history on Ionic's toast..._ The toast component is influenced based on Material Design's [Snackbar](https://m2.material.io/components/snackbars) component. iOS does not include a toast component in their Human Interface Guidelines. Ionic's implementation is a hybrid of a "close enough" design for iOS that somewhat resembles iOS notifications. Taking this into account, the new behavior specified below is very much a best guess of reasonable defaults to provide an appropriate user experience for a user that is displayed a toast while using the dynamic type feature in iOS. ## What is the new behavior? <!-- Please describe the behavior or changes that are being added by this PR. --> - The toast content (header and message) content will scale to a maximum of 310% of its base size of 14px. - Note: Header is not a valid aspect of MD Snackbar. This is an area where the iOS notification style has bled into public API. We scale both the header and message text to be consistent, but developers should be cautious with how much content they are rendering. MD recommends a maximum of 2 lines of text for mobile, this would include both the header and message text[^1]. - The toast button will scale based on the same sizing rules as the back button does for dynamic type. The action is important to scale for visibility, but the content of the toast is the primary content that should be scaled to the maximum size allocated. - On iOS, the toast container has a maximum height of 478px. This value is taken from scaling the notification UI in iOS to 310% and capturing the height of the largest allowed notification[^2]. Developers that display too much text will have the contents overflow (visibly hidden). This is intentional to prevent the toast from covering the entire application UI and to enforce developers limit their text. Developers can continue to override this value through the `--max-height` CSS variable. - The fixed height requirement for toast has been removed. On iOS, the toast container can expand up to the max height (defaults to `478px`). On MD, the container will expand and overflow the viewport. Once again, developers _should_ follow best practices of limiting their message to 1-2 lines of text. https://github.com/ionic-team/ionic-framework/assets/13732623/d19e93c9-55c3-4b35-85af-3be9d98e008d ## Does this introduce a breaking change? - [ ] Yes - [x] No <!-- If this introduces a breaking change, please describe the impact and migration path for existing applications below. --> ## Other information <!-- Any other information that is important to this PR such as screenshots of how the component looks before and after the change. --> I attempted to enforce the line requirements to have the header and message text overflow, but line-clamp is not consistently implemented across browsers and Safari does not render an ellipsis when the content overflows. For this reason, I do not believe clamping the text to a fixed number of lines is viable at this time. [^1]: Reference to Material Design 2 Snackbar spec: https://m2.material.io/components/snackbars#specs [^2]: Reference image for iOS notifications scaled to 310%: https://github.com/ionic-team/ionic-framework/assets/13732623/e2420340-8046-4a56-81c8-9e2ee1c1399b --------- Co-authored-by: ionitron <hi@ionicframework.com>
Ionic
Ionic is an open source app development toolkit for building modern, fast, top-quality cross-platform native and Progressive Web Apps from a single codebase with JavaScript and the Web.
Ionic is based on Web Components, which enables significant performance, usability, and feature improvements alongside support for popular web frameworks like Angular, React, and Vue.
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| Project | Package | Version | Downloads | Links |
|---|---|---|---|---|
| Core | @ionic/core |
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README.md |
| Angular | @ionic/angular |
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README.md |
| Vue | @ionic/vue |
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README.md |
| React | @ionic/react |
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README.md |
Looking for the ionic-angular package? Ionic 3 has been moved to the ionic-v3 repo. See Earlier Versions.
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The Ionic Conference App is a full featured Ionic app. It is the perfect starting point for learning and building your own app.
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As Ionic Framework components migrate to the web component standard, a goal of ours is to have Ionic Framework easily work within all of the popular frameworks.
Earlier Versions
The source code for earlier versions of the Ionic Framework may exist in other repositories. Please open issues and pull requests in their respective repositories.
- Ionic 2/3: Moved to
ionic-team/ionic-v3 - Ionic 1: Moved to
ionic-team/ionic-v1