初始化

2026-09-15 15:44:13 +07:00
commit a23ba685e9
1065 changed files with 101122 additions and 0 deletions
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+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:hgdj/assets_tool/images.dart';
+
+import '../../hj_model/splash/ads_model.dart';
+import '../../hj_utils/screen.dart';
+import '../../tools_base/banner/ads_banner_widget.dart';
+import '../../tools_base/banner/ads_item.dart';
+
+class AppCenterDialog extends StatefulWidget {
+  final List<AdsInfoModel>? appList;
+  final List<AdsInfoModel>? adsList;
+  final VoidCallback? callback;
+
+  const AppCenterDialog({super.key, this.appList, this.callback, this.adsList});
+
+  @override
+  State<AppCenterDialog> createState() => _AppCenterDialogState();
+}
+
+class _AppCenterDialogState extends State<AppCenterDialog> {
+  bool _showClose = false;
+
+  List<AdsInfoModel> get _appList => widget.appList ?? [];
+
+  /// 网格高度上限 = 4 行 + 底部留白，超出滚动。数字跟下面 gridDelegate 对应，改一处要同步。
+  /// 别用「首帧 shrinkWrap 量高度、次帧再改成固定高」那套——两帧布局不同，弹窗又居中，打开瞬间会跳
+  double get _maxGridHeight {
+    final itemWidth = (Get.width - 32 * 2 - 12 * 3) / 4;
+    return itemWidth * 93 / 68 * 4 + 16 * 3 + 25;
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    // 1 秒后再显示关闭按钮，防误触
+    Future.delayed(const Duration(milliseconds: 1000), () {
+      if (mounted) setState(() => _showClose = true);
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      color: Colors.black.withValues(alpha: 0.6),
+      child: Center(
+        child: Container(
+          padding: const EdgeInsets.symmetric(horizontal: 32),
+          alignment: Alignment.center,
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              if (widget.adsList?.isNotEmpty == true)
+                Container(
+                  margin: const EdgeInsets.only(bottom: 24),
+                  child: AdsBannerWidget(
+                    widget.adsList,
+                    width: 329,
+                    height: 88,
+                    autoPlayMs: 5000,
+                  ),
+                ),
+              //Flexible 兜住矮屏：内容再多也不会顶破屏幕
+              Flexible(
+                child: ConstrainedBox(
+                  constraints: BoxConstraints(maxHeight: _maxGridHeight),
+                  child: GridView.builder(
+                    padding: const EdgeInsets.only(bottom: 25),
+                    shrinkWrap: true, //不足 4 行时按内容收，不留空
+                    physics: const ClampingScrollPhysics(),
+                    itemCount: _appList.length,
+                    gridDelegate:
+                        const SliverGridDelegateWithFixedCrossAxisCount(
+                      crossAxisCount: 4,
+                      crossAxisSpacing: 12,
+                      mainAxisSpacing: 16,
+                      childAspectRatio: 68 / 93,
+                    ),
+                    itemBuilder: (context, index) {
+                      return AdsItem(
+                        adInfo: _appList[index],
+                      );
+                    },
+                  ),
+                ),
+              ),
+              32.sizeBoxH,
+              //一直挂在树上只切显隐：等 _showClose 才 build 的话，asset 解码前图高是 0，
+              //会先塌一下再弹回来，居中布局跟着抖
+              Opacity(
+                opacity: _showClose ? 1 : 0,
+                child: IgnorePointer(
+                  ignoring: !_showClose,
+                  child: GestureDetector(
+                    onTap: () => Get.back(),
+                    child: Image.asset("close_button.png".commonImgPath,
+                        width: 32, height: 32),
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}