Initial commit

lib/memo_editor.dart

@@ -0,0 +1,125 @@
+import 'package:flutter/material.dart';
+
+import 'memo.dart';
+import 'date_utils.dart';
+
+/// A screen for editing or creating a memo.
+/// 
+/// The new memo will be returned when popping the navigator. A return value of
+/// null indicates that the user has canceled the editor.
+class MemoEditor extends StatefulWidget {
+  /// The memo to edit.
+  /// 
+  /// A value of null indicates that the user will be creating a new memo.
+  final Memo memo;
+
+  MemoEditor({
+    this.memo,
+  });
+
+  @override
+  _MemoEditorState createState() => _MemoEditorState();
+}
+
+class _MemoEditorState extends State<MemoEditor> {
+  final _textController = TextEditingController();
+
+  DateTime _date;
+  TimeOfDay _time;
+
+  @override
+  void initState() {
+    super.initState();
+
+    if (widget.memo != null) {
+      _textController.text = widget.memo.text;
+      _date = widget.memo.scheduled.copy();
+      _time = TimeOfDay.fromDateTime(_date);
+    } else {
+      _date = DateTime.now().add(Duration(days: 1));
+      _time = TimeOfDay(
+        hour: 8,
+        minute: 0,
+      );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(widget.memo != null ? 'Edit memo' : 'Add memo'),
+        actions: <Widget>[
+          FlatButton(
+            child: Text(
+              widget.memo != null ? 'SAVE' : 'CREATE',
+              style: theme.textTheme.button.copyWith(
+                color: theme.colorScheme.onPrimary,
+              ),
+            ),
+            onPressed: () {
+              Navigator.pop(
+                context,
+                Memo(
+                  text: _textController.text,
+                  scheduled: _date.copyWithTime(_time),
+                ),
+              );
+            },
+          ),
+        ],
+      ),
+      body: ListView(
+        children: <Widget>[
+          Padding(
+            padding: const EdgeInsets.all(16.0),
+            child: TextField(
+              controller: _textController,
+              maxLines: null,
+              decoration: InputDecoration(
+                border: OutlineInputBorder(),
+                labelText: 'Memo',
+              ),
+            ),
+          ),
+          ListTile(
+            title: Text('Date'),
+            subtitle: Text(_date.dateString),
+            onTap: () async {
+              final result = await showDatePicker(
+                context: context,
+                initialDate: _date,
+                firstDate: DateTime.now(),
+                lastDate: DateTime.now().add(Duration(days: 3560)),
+              );
+
+              if (result != null) {
+                setState(() {
+                  _date = result;
+                });
+              }
+            },
+          ),
+          ListTile(
+            title: Text('Time'),
+            subtitle: Text(_time.format(context)),
+            onTap: () async {
+              final result = await showTimePicker(
+                context: context,
+                initialTime: _time,
+              );
+
+              if (result != null) {
+                setState(() {
+                  _time = result;
+                });
+              }
+            },
+          ),
+        ],
+      ),
+    );
+  }
+}