Add example, update description (#103)

Author: mit-mit

CHANGELOG.md

@@ -1,4 +1,7 @@
-## 1.0.2-dev
+## 1.0.2
+
+* Update description.
+* Add example.
 
 ## 1.0.1
 

example/main.dart

@@ -0,0 +1,37 @@
+import 'package:logging/logging.dart';
+
+final log = Logger('ExampleLogger');
+
+/// Example of configuring a logger to print to stdout.
+///
+/// This example will print:
+///
+/// INFO: 2021-09-13 15:35:10.703401: recursion: n = 4
+/// INFO: 2021-09-13 15:35:10.707974: recursion: n = 3
+/// Fibonacci(4) is: 3
+/// Fibonacci(5) is: 5
+/// SHOUT: 2021-09-13 15:35:10.708087: Unexpected negative n: -42
+/// Fibonacci(-42) is: 1
+void main() {
+  Logger.root.level = Level.ALL; // defaults to Level.INFO
+  Logger.root.onRecord.listen((record) {
+    print('${record.level.name}: ${record.time}: ${record.message}');
+  });
+
+  print('Fibonacci(4) is: ${fibonacci(4)}');
+
+  Logger.root.level = Level.SEVERE; // skip logs less then severe.
+  print('Fibonacci(5) is: ${fibonacci(5)}');
+
+  print('Fibonacci(-42) is: ${fibonacci(-42)}');
+}
+
+int fibonacci(int n) {
+  if (n <= 2) {
+    if (n < 0) log.shout('Unexpected negative n: $n');
+    return 1;
+  } else {
+    log.info('recursion: n = $n');
+    return fibonacci(n - 2) + fibonacci(n - 1);
+  }
+}

pubspec.yaml

@@ -1,10 +1,9 @@
 name: logging
-version: 1.0.2-dev
+version: 1.0.2
 
 description: >-
-  Provides APIs for debugging and error logging. This library introduces
-  abstractions similar to those used in other languages, such as the Closure
-  JS Logger and java.util.logging.Logger.
+  Provides APIs for debugging and error logging, similar to loggers in other
+  languages, such as the Closure JS Logger and java.util.logging.Logger.
 repository: https://github.com/dart-lang/logging
 
 environment: