update VDialogSelect

lib/components/dialog_select.dart

@@ -1,60 +1,49 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 
+import 'alert_dialog.dart';
+
 class VDialogSelect<T, TValue> extends StatelessWidget {
+  /// 数据集
   final List<T> source;
-  final TValue? value;
+
+  /// 初始值
+  final TValue? initialValue;
+
+  /// 弹窗标题
   final String? title;
+
+  /// 选项文本提取函数
   final String Function(T data)? labelGetter;
+
+  /// 选项外显组件构建器
   final Widget Function(T data)? labelBuilder;
+
+  /// 选项值提取函数
   final TValue Function(T data) valueGetter;
-  final ValueChanged<TValue>? onChanged;
 
   const VDialogSelect({
     super.key,
     required this.source,
     this.title,
-    this.value,
+    this.initialValue,
     this.labelGetter,
     this.labelBuilder,
     required this.valueGetter,
-    this.onChanged,
   }) : assert(labelGetter != null || labelBuilder != null);
 
-  void show() {
-    Get.dialog(this);
-  }
+  Future<T?> show<T>() => VAlertDialog.showDialog<T>(this);
 
   @override
   Widget build(BuildContext context) {
-    return AlertDialog(
-      backgroundColor: Colors.white,
-      elevation: 0,
-      title: title != null ? Text(title!) : null,
-      titleTextStyle: const TextStyle(fontSize: 24, color: Colors.black),
-      actionsAlignment: MainAxisAlignment.center,
-      actions: [
-        SizedBox(
-          width: 90,
-          child: TextButton(
-            onPressed: () {
-              Navigator.of(context).pop();
-            },
-            child: const Text(
-              "取消",
-              style: TextStyle(fontSize: 18),
-            ),
-          ),
-        ),
-      ],
-      contentPadding: const EdgeInsets.only(top: 20, bottom: 8),
-      content: SizedBox(
-        width: 460,
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: _buildOptions(context),
-        ),
+    return VAlertDialog(
+      width: 460,
+      title: title,
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: _buildOptions(context),
       ),
+      showCancel: true,
     );
   }
 
@@ -64,7 +53,7 @@ class VDialogSelect<T, TValue> extends StatelessWidget {
     for (var i = 0; i < source.length; i++) {
       final data = source[i];
       final val = valueGetter(data);
-      final isSelected = value == val;
+      final isSelected = initialValue == val;
       Widget label;
       if (labelBuilder != null) {
         label = labelBuilder!(data);
@@ -108,7 +97,9 @@ class VDialogSelect<T, TValue> extends StatelessWidget {
           color: Colors.transparent,
           child: Ink(
             child: InkWell(
-              onTap: () {},
+              onTap: () {
+                _onSelected(val);
+              },
               child: widget,
             ),
           ),
@@ -117,4 +108,8 @@ class VDialogSelect<T, TValue> extends StatelessWidget {
     }
     return children;
   }
+
+  void _onSelected(TValue value) {
+    Get.back(result: value);
+  }
 }