tree a938d8b42d3bcdbff019fcbb319c9e2906db90f1
parent 3cc6e26ea830b18b94d8d0eb8f53cdf76976ba75
author stuartmorgan <stuartmorgan@google.com> 1698174301 -0700
committer GitHub <noreply@github.com> 1698174301 +0000
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[url_launcher] Add an `inAppBrowserView` mode (#5155)

`url_launcher_android` recently switched from an in-app webview to an Android Custom Tab (when supported), which was intended to be an in-place upgrade. However, this broke `closeInAppWebView`, and that couldn't be fixed directly because Android Custom Tab has no mechanism for programatic close. To address the regression, this adds a new `inAppBrowserView` launch mode which is distinct from `inAppWebView`, so that use cases that require programatic close can specifically request `inAppWebView` instead. The default for web links is the new `inAppBrowserView` since that gives better results in most cases.

Since whether `closeInAppWebView` will work in any given case is now non-trivial (on iOS, both in-app modes are supported, but on Android it's only the web view mode), this adds a new support API to query it, in keeping with the relatively new guidance of https://github.com/flutter/flutter/wiki/Contributing-to-Plugins-and-Packages#api-support-queries. It also adds API to query for support for being able to use specific launch modes, since there wasn't a good way to understand which modes worked in general on different platforms.

Since there are new APIs, this adds support for those APIs to all of our implementations to ensure that they give accurate responses.

Fixes https://github.com/flutter/flutter/issues/134208