refactor: Move widgets to lib

lib/widgets/log_view.dart

@@ -0,0 +1,65 @@
+import 'package:famedlysdk/famedlysdk.dart';
+import 'package:flutter/material.dart';
+
+class LogViewer extends StatefulWidget {
+  @override
+  _LogViewerState createState() => _LogViewerState();
+}
+
+class _LogViewerState extends State<LogViewer> {
+  Level logLevel = Level.debug;
+  double fontSize = 14;
+  @override
+  Widget build(BuildContext context) {
+    final outputEvents = Logs()
+        .outputEvents
+        .where((e) => e.level.index >= logLevel.index)
+        .toList();
+    return Scaffold(
+      backgroundColor: Colors.black,
+      appBar: AppBar(
+        title: Text(logLevel.toString()),
+        leading: BackButton(),
+        actions: [
+          IconButton(
+            icon: Icon(Icons.zoom_in_outlined),
+            onPressed: () => setState(() => fontSize++),
+          ),
+          IconButton(
+            icon: Icon(Icons.zoom_out_outlined),
+            onPressed: () => setState(() => fontSize--),
+          ),
+          PopupMenuButton<Level>(
+            itemBuilder: (context) => Level.values
+                .map((level) => PopupMenuItem(
+                      value: level,
+                      child: Text(level.toString()),
+                    ))
+                .toList(),
+            onSelected: (Level level) => setState(() => logLevel = level),
+          ),
+        ],
+      ),
+      body: ListView.builder(
+        itemCount: outputEvents.length,
+        itemBuilder: (context, i) => SingleChildScrollView(
+          scrollDirection: Axis.horizontal,
+          child: Text(outputEvents[i].toDisplayString()),
+        ),
+      ),
+    );
+  }
+}
+
+extension on LogEvent {
+  String toDisplayString() {
+    var str = '# $title';
+    if (exception != null) {
+      str += ' - ${exception.toString()}';
+    }
+    if (stackTrace != null) {
+      str += '\n${stackTrace.toString()}';
+    }
+    return str;
+  }
+}