[url_launcher] canLaunch can return false for http(s) links with a specific application handler #93765
Description
Steps to Reproduce
- Run on Android 11+
- Install amazon on your phone
- Write a flutter app that runs
canLaunch('https://www.amazon.com') - This will return
falsewhen it should returntrue - However,
canLaunch('https://amazon.com')will returntrue, I'm not entirely sure why, might have something to do with the amazon app setup?
My guess is that this is related to this line:
https://github.com/flutter/plugins/blob/b548ae18646d1725a8e1f004c26bf42e4d362aa8/packages/url_launcher/url_launcher/android/src/main/java/io/flutter/plugins/urllauncher/UrlLauncher.java#L84
According to this blog post,
In Android 11 there’s a better way to do this, which avoids the need to query other apps: the FLAG_ACTIVITY_REQUIRE_NON_BROWSER intent flag. When you call startActivity() with this flag, an ActivityNotFoundException will be thrown if a browser would have been launched. When this happens, you can open the URL in a Custom Tab instead.
So should the ActivityNotFoundException handling be more forgiving?
Setup
AndroidManifest.xml:
...
<!-- Provide required visibility configuration for API level 30 and above -->
<queries>
<intent>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="https" />
</intent>
</queries>
...
Logs
[√] Flutter (Channel stable, 2.5.2, on Microsoft Windows [Version 10.0.19043.1348], locale en-US)
• Flutter version 2.5.2 at D:\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 3595343e20 (7 weeks ago), 2021-09-30 12:58:18 -0700
• Engine revision 6ac856380f
• Dart version 2.14.3
[√] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
• Android SDK at C:\Users\1\AppData\Local\Android\sdk
• Platform android-31, build-tools 31.0.0
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[√] Android Studio (version 4.0)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 51.0.1
• Dart plugin version 193.7547
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
[√] IntelliJ IDEA Community Edition (version 2017.2)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2017.2.3
• Flutter plugin version 21.2.2
• Dart plugin version 172.3968.27
[√] Connected device (3 available)
• Pixel 5 (mobile) • 13151FDD4000NV • android-arm64 • Android 12 (API 31)
• Chrome (web) • chrome • web-javascript • Google Chrome 95.0.4638.69
• Edge (web) • edge • web-javascript • Microsoft Edge 93.0.961.52
• No issues found!