From 50df1aea9c4a2c7427a84c5b66a5bd1c7cea31eb Mon Sep 17 00:00:00 2001
From: Timm Preetz <52437+tp@users.noreply.github.com>
Date: Wed, 29 Apr 2020 20:12:21 +0200
Subject: [PATCH] Add note that `canLaunch` only works for some schemes

And that some configuration is necessary to support custom schemes.
---
 packages/url_launcher/url_launcher/lib/url_launcher.dart | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/url_launcher/url_launcher/lib/url_launcher.dart b/packages/url_launcher/url_launcher/lib/url_launcher.dart
index 97af77143936..d27c7fba4732 100644
--- a/packages/url_launcher/url_launcher/lib/url_launcher.dart
+++ b/packages/url_launcher/url_launcher/lib/url_launcher.dart
@@ -101,6 +101,11 @@ Future<bool> launch(
 
 /// Checks whether the specified URL can be handled by some app installed on the
 /// device.
+///
+/// On iOS 9.0 and later this only works for non-standard URL schemes if those are
+/// declared in your app's `Info.plist` file under the `LSApplicationQueriesSchemes` key
+/// For more details see:
+/// https://developer.apple.com/documentation/uikiAndt/uiapplication/1622952-canopenurl
 Future<bool> canLaunch(String urlString) async {
   if (urlString == null) {
     return false;