Add code excerpt for stream listen hint and fix markdown highlighting…

… (#3432)
Vadaski · Jul 28, 2021 · 79bed10 · 79bed10
1 parent 33ef8db
commit 79bed10
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Showing 2 changed files with 14 additions and 1 deletion.
diff --git a/examples/misc/lib/articles/creating-streams/stream_controller.dart b/examples/misc/lib/articles/creating-streams/stream_controller.dart
@@ -68,6 +68,18 @@ void main() {
  // demoPause();
 }
 
+void onListenHint() {
+ var stream = Stream.empty();
+ void handler(dynamic) {}
+ StreamSubscription<dynamic> subscription;
+
+ // #docregion stream-listen-hint
+ subscription = stream.listen(handler);
+ // #enddocregion stream-listen-hint
+
+ subscription.cancel();
+}
+
 void showBasicUsage() {
  // #docregion basic-usage
  var counterStream =

diff --git a/src/_articles/libraries/creating-streams.md b/src/_articles/libraries/creating-streams.md
@@ -443,8 +443,9 @@ keep these tips in mind:
  before the `subscription` variable
  has a valid value.
 
+ <?code-excerpt "misc/lib/articles/creating-streams/stream_controller.dart (stream-listen-hint)"?>
  ```dart
-subscription = stream.listen(handler);
+ subscription = stream.listen(handler);
  ```
 
 * The `onListen`, `onPause`, `onResume`, and `onCancel`