HarmonyOS 自定义弹窗选择

import { BusinessError } from '@ohos.base';  
import { ComponentContent } from "@ohos.arkui.node";  
class Params {  
  text: string = ""  
  
  constructor(text: string) {  
    this.text = text;  
  }  
}  
@Builder  
function buildText(params: Params) {  
  Column() {  
    Text(params.text)  
      .fontSize(50)  
      .fontWeight(FontWeight.Bold)  
      .margin({ bottom: 36 })  
  }.backgroundColor('#FFF0F0F0')  
}  
@Entry  
@Component  
struct Index {  
  @State message: string = "hello"  
  build() {  
    Row() {  
      Column() {  
        Button("click me")  
          .onClick(() => {  
            let uiContext = this.getUIContext();  
            let promptAction = uiContext.getPromptAction();  
            let contentNode = new ComponentContent(uiContext, wrapBuilder(buildText), new Params(this.message));  
            try {  
              promptAction.openCustomDialog(contentNode);  
            } catch (error) {  
              let message = (error as BusinessError).message;  
              let code = (error as BusinessError).code;  
              console.error(`OpenCustomDialog args error code is ${code}, message is ${message}`);  
            }  
            ;  
          })  
      }  
      .width('100%')  
      .height('100%')  
    }  
    .height('100%')  
  }  
}