初始化

lib/hj_model/splash/watch_count_model.dart

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+class WatchCount {
+  int? watchCount; // 剩余免费观看次数
+  int? total; // 免费观看总次数(后端下发，用于"剩余 x/y 次"展示)
+  bool? isCan; // 金币视频不再免费次数内
+
+  //⚠️注意: coinWatchCount: 活动权益金币视频免费观看次数, 需要手动赋值,
+  int coinWatchCount = -1; //短视频业务专用, 因为短视频业务提前预加载数据,需要copy对象,保存当前对应的count值
+
+  static WatchCount fromJson(Map<String, dynamic>? map) {
+    map ??= {};
+    return WatchCount()
+      ..watchCount = map['watchCount']
+      ..total = map['total']
+      ..isCan = map['isCan'];
+  }
+
+  //只复制展示用的次数；coinWatchCount 按注释由调用方自行赋值
+  WatchCount copy() => WatchCount()
+    ..watchCount = watchCount
+    ..total = total;
+}