Merge branch '2datePicker'

* 2datePicker:
  update 2datePicker

example/lib/example_picker.dart

@@ -50,6 +50,16 @@ class _ExamplePickerState extends State<ExamplePicker> {
               },
             ),
           ),
+          ListTile(
+            title: Text('时间区间选择器'),
+            subtitle: Text('DateRangePicker'),
+            trailing: ASButton(
+              title: '时间区间选择器',
+              onPressed: () async {
+                show2DatePicker(context);
+              },
+            ),
+          ),
         ],
       ),
     );

lib/ansu_ui.dart

@@ -38,6 +38,8 @@ part 'pickers/as_date_picker.dart';
 part 'pickers/as_picker_box.dart';
 part 'pickers/as_city_picker.dart';
 part 'pickers/as_show_city_picker.dart';
+part 'pickers/as_two_date_picker.dart';
+part 'pickers/as_date_range_picker_part.dart';
 
 part 'dialog/as_dialog.dart';
 part 'dialog/as_dialog_button.dart';

lib/pickers/as_date_range_picker.dart

@@ -1,15 +0,0 @@
-import 'package:flutter/material.dart';
-
-class ASDateRangePicker extends StatefulWidget {
-  ASDateRangePicker({Key key}) : super(key: key);
-
-  @override
-  _ASDateRangePickerState createState() => _ASDateRangePickerState();
-}
-
-class _ASDateRangePickerState extends State<ASDateRangePicker> {
-  @override
-  Widget build(BuildContext context) {
-    return SizedBox();
-  }
-}

lib/pickers/as_date_range_picker_part.dart

@@ -0,0 +1,19 @@
+part of ansu_ui;
+
+class RangeDate {
+  DateTime start;
+  DateTime end;
+  RangeDate({
+    this.start,
+    this.end,
+  });
+}
+
+Future<RangeDate> show2DatePicker(BuildContext context) async {
+  return await showModalBottomSheet(
+    context: context,
+    builder: (context) {
+      return AS2DatePicker();
+    },
+  );
+}

lib/pickers/as_two_date_picker.dart

@@ -0,0 +1,102 @@
+part of ansu_ui;
+
+class AS2DatePicker extends StatefulWidget {
+  AS2DatePicker({Key key}) : super(key: key);
+
+  @override
+  _AS2DatePickerState createState() => _AS2DatePickerState();
+}
+
+class _AS2DatePickerState extends State<AS2DatePicker>
+    with TickerProviderStateMixin {
+  int _selectedDay = 0;
+
+  DateTime get now => DateTime.now();
+  TabController _tabController;
+
+  DateTimeRange get singleHour => DateTimeRange(
+        start: now,
+        end: now.add(Duration(hours: 1)),
+      );
+  Widget _buildDayButton(int index, String title) {
+    bool sameDay = _selectedDay == index;
+    return MaterialButton(
+      elevation: 0,
+      disabledElevation: 0,
+      focusElevation: 0,
+      highlightElevation: 0,
+      hoverElevation: 0,
+      color: sameDay ? kForegroundColor : kForegroundColor.withOpacity(0),
+      onPressed: () => setState(() => _selectedDay = index),
+      materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
+      height: 70.w,
+      child: title.text.black
+          .size(16)
+          .copyWith(fontWeight: sameDay ? FontWeight.bold : FontWeight.normal),
+    );
+  }
+
+  Widget get _renderCheckBox => Container(
+        height: 14.w,
+        width: 14.w,
+        decoration: BoxDecoration(
+          color: kSecondaryColor,
+          borderRadius: 7.radius,
+        ),
+        child: Icon(Icons.check, size: 12.w),
+      );
+
+  @override
+  void initState() {
+    super.initState();
+    _tabController = TabController(length: 3, vsync: this);
+  }
+
+  @override
+  void dispose() {
+    _tabController?.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      height: 340.w,
+      child: Material(
+        color: kForegroundColor,
+        child: Column(
+          children: [
+            Row(
+              children: [
+                SizedBox(
+                  width: 112.w,
+                  child: Material(
+                    color: Color(0xFFF2F2F2),
+                    child: ListView(
+                      children: [
+                        _buildDayButton(0, '今天'),
+                        _buildDayButton(1, '明天'),
+                        _buildDayButton(2, '后天'),
+                      ],
+                    ),
+                  ),
+                ),
+                Expanded(child: SizedBox()),
+              ],
+            ).expanded,
+            Container(
+              margin: EdgeInsets.symmetric(
+                horizontal: 24.w,
+                vertical: 18.w,
+              ),
+              child: ASLongButton.solid(
+                title: '确认',
+                onPressed: () {},
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}