自定义弹窗自定义转场动画

let anmDuration: number = 800; 
// 弹窗交互 
@CustomDialog 
struct CustomDialogExample { 
  @State showFlag: Visibility = Visibility.Visible; 
  @State isAutoCancel: boolean = false; 
  
  controller: CustomDialogController = new CustomDialogController({ 
    builder: CustomDialogExample({}), 
    autoCancel:false 
  }) 
  
  build() { 
    Column() { 
      Text('我是内容').fontSize(20).margin({ top: 10, bottom: 10 }) 
        .backgroundColor('#FFFFFF') 
        .textAlign(TextAlign.Center) 
        .height(200) 
        .width('100%') 
        .margin({top:600}) 
        .onClick(()=>{ 
          this.cancel(); 
        }) 
    } 
    .width('100%') 
    .height('100%') 
    .margin({ 
      bottom: -15 
    }) 
    .onClick(()=>{ 
      if(this.isAutoCancel){ 
        this.cancel(); 
      } 
    }) 
    .visibility(this.showFlag) 
    // 定义进场出场转场动画效果 
    .transition(TransitionEffect.OPACITY.animation({duration: anmDuration}).combine(TransitionEffect.translate({y: 100}))) 
  } 
  
  // 延迟关闭弹窗，让自定义的出场动画显示 
  cancel(){ 
    this.showFlag=Visibility.Hidden 
    setTimeout(()=>{ 
      this.controller.close() 
    }, anmDuration) 
  } 
} 
  
@Entry 
@Component 
struct CustomDialogUser { 
  // 是否允许点击遮障层退出 
  @State isAutoCancel: boolean = true; 
  
  dialogController: CustomDialogController = new CustomDialogController({ 
    builder: CustomDialogExample({ isAutoCancel: this.isAutoCancel }), 
    autoCancel: this.isAutoCancel, 
    // 弹窗容器样式是否自定义 
    customStyle:true 
  }) 
  
  build() { 
    Column() { 
      Button('click me') 
        .onClick(() => { 
          this.dialogController.open() 
        }) 
    }.width('100%').height('100%').margin({ top: 5 }) 
  } 
}