初始化

2026-09-15 15:44:13 +07:00
commit a23ba685e9
1065 changed files with 101122 additions and 0 deletions
@@ -0,0 +1,101 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+class LoadingAlertWidget extends StatefulWidget {
+  final String? title;
+  final bool canCancel;
+
+  const LoadingAlertWidget({super.key, this.title, this.canCancel = false});
+
+  static GlobalKey<_LoadingAlertWidgetState>? _globalKey;
+
+  static int showCount = 0;
+
+  static show({String? title, bool canCancel = false}) {
+    _globalKey = GlobalKey<_LoadingAlertWidgetState>();
+    showCount++;
+    Get.dialog(
+      LoadingAlertWidget(key: _globalKey, title: title, canCancel: canCancel),
+      barrierColor: Colors.transparent,
+    );
+  }
+
+  static showExchangeTitle(String title) {
+    _globalKey?.currentState?._flushTitle(title);
+  }
+
+  static cancel() {
+    _globalKey = null;
+    if (showCount > 0) {
+      Get.back();
+      showCount--;
+    }
+  }
+
+  @override
+  State<StatefulWidget> createState() {
+    return _LoadingAlertWidgetState();
+  }
+}
+
+class _LoadingAlertWidgetState extends State<LoadingAlertWidget> {
+  late String title;
+
+  @override
+  void initState() {
+    super.initState();
+    title = widget.title ?? "加载中...";
+  }
+
+  void _flushTitle(String text) {
+    title = text;
+    setState(() {});
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return WillPopScope(
+      onWillPop: () async {
+        if (widget.canCancel == true) {
+          LoadingAlertWidget._globalKey = null;
+          return true;
+        }
+        return false;
+      },
+      child: Center(
+        child: ClipRRect(
+          borderRadius: BorderRadius.circular(10),
+          child: Container(
+            color: Colors.black45,
+            height: 100,
+            padding: const EdgeInsets.symmetric(horizontal: 24),
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                SizedBox(
+                  width: 36,
+                  height: 36,
+                  child: CircularProgressIndicator(
+                    backgroundColor: Colors.grey[500],
+                    valueColor: const AlwaysStoppedAnimation(Colors.white70),
+                    strokeWidth: 2,
+                  ),
+                ),
+                const SizedBox(height: 12),
+                Text(
+                  title,
+                  style: const TextStyle(
+                    fontSize: 12,
+                    color: Colors.white,
+                    fontWeight: FontWeight.normal,
+                    decoration: TextDecoration.none,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}