[url_launcher] Update result to True when the url was loaded successfully. (flutter#3475)

* Update FLTURLLauncherPlugin.m

Update result to `True` when the url was loaded successfully.

* Update pubspec.yaml

* Update CHANGELOG.md

* Undo the re-addition of pre-release changelogs.

Co-authored-by: Ben Li <libe@google.com>
Co-authored-by: stuartmorgan <stuart.morgan@gmail.com>

Author: 3 people

packages/url_launcher/url_launcher/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 6.0.1
+
+* Update result to `True` on iOS when the url was loaded successfully.
+
 ## 6.0.0
 
 * Migrate to null safety.

packages/url_launcher/url_launcher/ios/Classes/FLTURLLauncherPlugin.m

@@ -34,7 +34,7 @@ - (instancetype)initWithUrl:url withFlutterResult:result {
 - (void)safariViewController:(SFSafariViewController *)controller
       didCompleteInitialLoad:(BOOL)didLoadSuccessfully API_AVAILABLE(ios(9.0)) {
   if (didLoadSuccessfully) {
-    self.flutterResult(nil);
+    self.flutterResult(@YES);
   } else {
     self.flutterResult([FlutterError
         errorWithCode:@"Error"

packages/url_launcher/url_launcher/pubspec.yaml

@@ -2,7 +2,7 @@ name: url_launcher
 description: Flutter plugin for launching a URL. Supports
   web, phone, SMS, and email schemes.
 homepage: https://github.com/flutter/plugins/tree/master/packages/url_launcher/url_launcher
-version: 6.0.0
+version: 6.0.1
 
 flutter:
   plugin: