#鸿蒙通关秘籍#如何在HarmonyOS Next中封装自定义弹窗组件并与UI解耦

在HarmonyOS Next应用中，封装一个可重用的自定义弹窗组件，与UI解耦，可以按照以下步骤进行：

1. 封装弹窗UI组件： 创建一个弹窗选项类来封装所有的弹窗参数及样式：

   export class AppDialogOption {
     view?: WrappedBuilder<Object[]>
     buildParams?: Object
     params?: Object
     autoClose?: number
     onPop?: (data: PopInfo) => void
     onBackPressed?: () => boolean
     styles?: AppDialogStyle = new AppDialogStyle()
     animation?: TransitionEffect
     instance?: AppDialog
   }
   
   export class AppDialogStyle {
     transparent: boolean = false
     background: string = 'rgba(0,0,0,0.5)'
     radius: Length = 5
     align: Alignment = Alignment.Center
   }
   

2. 封装弹窗控制器： 提供一套链式调用API用于管理弹窗生命周期：

   export class AppDialog {
     static indexArr: number[] = [];
     private stackIndex: number = 0;
     private options?: AppDialogOption;
   
     public static buildWithOptions(options?: AppDialogOption): AppDialog {
       let instance: AppDialog = new AppDialog();
       let index: number = AppRouter.getInstance().getPathStack().size() - 1;
       AppDialog.indexArr.push(index);
       instance.stackIndex = index;
       instance.options = options;
       options!.instance = instance;
       return instance;
     }
   
     // More methods...
   }