70d9854d8d
Issue number: resolves #25990 --------- <!-- 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. --> The tab bar and footer are being shown too soon after the keyboard begins to hide. This is happening because the webview resizes _after_ the keyboard begins to dismiss. As a result, it is possible for the tab bar and footer to briefly appear on the top of the keyboard in environments where the webview resizes. ## What is the new behavior? <!-- Please describe the behavior or changes that are being added by this PR. --> - The tab bar and footer wait until after the webview has resized before showing again | before | after | | - | - | | <video src="https://user-images.githubusercontent.com/2721089/236905066-42ac17a5-a5bf-458b-9c62-005fcce05e20.MP4"></video> | <video src="https://user-images.githubusercontent.com/2721089/236905185-d2f539d1-6d93-4385-b1cb-24dd7aa06393.MP4"></video> | This code works by adding an optional parameter to the keyboard controller callback called `waitForResize`. When defined, code within Ionic can wait for the webview to resize as a result of the keyboard opening or closing. Tab bar and footer wait for this `waitForResize` promise to resolve before re-showing the relevant elements. This `waitForResize` parameter is only only defined when all of the following are two: **1. The webview resize mode is known and is _not_ "None".** If the webview resize mode is unknown then either the Keyboard plugin is not installed (in which case the tab bar/footer are never hidden in the first place) or the app is being deployed in a browser/PWA environment (in which case the web content typically does not resize). If the webview resize mode is "None" then that means the keyboard plugin is installed, but the webview is configured to never resize when the keyboard opens/closes. As a result, there is no need to wait for the webview to resize. **2. The webview has previously resized.** If the keyboard is closed _before_ the opening keyboard animation completes then it is possible for the webview to never resize. In this case, the webview is at full height and the tab bar/footer can immediately be re-shown. ------ Under the hood, we use a [ResizeObserver](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver) to listen for when the web content resizes. Which element we listen on depends on the resize mode set in the developer's Capacitor app. We determine this in the `getResizeContainer` function. From there, we wait for the ResizeObserver callback, then wait 1 more frame so the promise resolves _after_ the resize has finished. ## 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. --> Dev build: `7.0.6-dev.11683905366.13943af0`
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 |
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| 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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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