基础自定义弹出框 (CustomDialog)(不推荐)

CustomDialog是自定义弹出框,可用于广告、中奖、警告、软件更新等与用户交互响应操作。开发者可以通过CustomDialogController类显示自定义弹出框。具体用法请参考自定义弹出框

说明:

当前,ArkUI弹出框默认为非页面级弹出框,在页面路由跳转时,如果开发者未调用close方法将其关闭,弹出框将不会自动关闭。若需实现在跳转页面时覆盖弹出框的场景,可以使用组件导航子页面显示类型的弹窗类型或者页面级弹出框

弹出框(CustomDialog)可以通过配置isModal来实现模态和非模态弹窗。isModal为true的时候,弹出框为模态弹窗。isModal为false时,弹出框为非模态弹窗。

创建自定义弹出框

  1. 使用@CustomDialog装饰器装饰自定义弹出框,可在此装饰器内自定义弹出框内容。CustomDialogController需在@Component内定义。

    @CustomDialog
    struct CustomDialogExample {
      controller: CustomDialogController = new CustomDialogController({
        builder: CustomDialogExample({}),
      })
    
      build() {
        Column() {
          Text('我是内容')
            .fontSize(20)
        }.height(60).justifyContent(FlexAlign.Center)
      }
    }
    
  2. 创建构造器,与装饰器呼应相连。

     @Entry
     @Component
     struct CustomDialogUser {
       dialogController: CustomDialogController = new CustomDialogController({
         builder: CustomDialogExample(),
       })
     }
    
  3. 点击与onClick事件绑定的组件使弹出框弹出。

    @Entry
    @Component
    struct CustomDialogUser {
      dialogController: CustomDialogController = new CustomDialogController({
        builder: CustomDialogExample(),
      })
    
      build() {
        Column() {
          Button('click me')
            .onClick(() => {
              this.dialogController.open()
            })
        }.width('100%').margin({ top: 5 })
      }
    }
    

    zh-cn_image_0000001562700493

弹出框的交互

弹出框可用于数据交互,完成用户一系列响应操作。

  1. 在@CustomDialog装饰器内添加按钮,同时添加数据函数。

    @CustomDialog
    struct CustomDialogExample {
      cancel?: () => void
      confirm?: () => void
      controller: CustomDialogController
    
      build() {
        Column() {
          Text('我是内容').fontSize(20).margin({ top: 10, bottom: 10 })
          Flex({ justifyContent: FlexAlign.SpaceAround }) {
            Button('cancel')
              .onClick(() => {
                this.controller.close()
                if (this.cancel) {
                  this.cancel()
                }
              }).backgroundColor(0xffffff).fontColor(Color.Black)
            Button('confirm')
              .onClick(() => {
                this.controller.close()
                if (this.confirm) {
                  this.confirm()
                }
              }).backgroundColor(0xffffff).fontColor(Color.Red)
          }.margin({ bottom: 10 })
        }
      }
    }
    
  2. 页面内需要在构造器内进行接收,同时创建相应的函数操作。

    @Entry
    @Component
    struct CustomDialogUser {
      dialogController: CustomDialogController = new CustomDialogController({
        builder: CustomDialogExample({
          cancel: ()=> { this.onCancel() },
          confirm: ()=> { this.onAccept() },
        }),
      })
    
      onCancel() {
        console.info('Callback when the first button is clicked')
      }
    
      onAccept() {
        console.info('Callback when the second button is clicked')
      }
    
      build() {
        Column() {
          Button('click me')
            .onClick(() => {
              this.dialogController.open()
            })
        }.width('100%').margin({ top: 5 })
      }
    }
    

    zh-cn_image_0000001511421320

    3.可通过弹出框中的按钮实现路由跳转,同时获取跳转页面向当前页传入的参数。

    // Index.ets
    @CustomDialog
    struct CustomDialogExample {
      @Link textValue: string
      controller?: CustomDialogController
      cancel: () => void = () => {
      }
      confirm: () => void = () => {
      }
    
      build() {
        Column({ space: 20 }) {
          if (this.textValue != '') {
            Text(`第二个页面的内容为:${this.textValue}`)
              .fontSize(20)
          } else {
            Text('是否获取第二个页面的内容')
              .fontSize(20)
          }
          Flex({ justifyContent: FlexAlign.SpaceAround }) {
            Button('cancel')
              .onClick(() => {
                if (this.controller != undefined) {
                  this.controller.close()
                  this.cancel()
                }
              }).backgroundColor(0xffffff).fontColor(Color.Black)
            Button('confirm')
              .onClick(() => {
                if (this.controller != undefined && this.textValue != '') {
                  this.controller.close()
                } else if (this.controller != undefined) {
                  this.getUIContext().getRouter().pushUrl({
                    url: 'pages/Index2'
                  })
                  this.controller.close()
                }
              }).backgroundColor(0xffffff).fontColor(Color.Red)
          }.margin({ bottom: 10 })
        }.borderRadius(10).padding({ top: 20 })
      }
    }
    
    @Entry
    @Component
    struct CustomDialogUser {
      @State textValue: string = ''
      dialogController: CustomDialogController | null = new CustomDialogController({
        builder: CustomDialogExample({
          cancel: () => {
            this.onCancel()
          },
          confirm: () => {
            this.onAccept()
          },
          textValue: $textValue
        })
      })
    
      // 在自定义组件即将析构销毁时将dialogController置空
      aboutToDisappear() {
        this.dialogController = null // 将dialogController置空
      }
    
      onPageShow() {
        const params = this.getUIContext().getRouter().getParams() as Record<string, string>; // 获取传递过来的参数对象
        if (params) {
          this.dialogController?.open()
          this.textValue = params.info as string; // 获取info属性的值
        }
      }
    
      onCancel() {
        console.info('Callback when the first button is clicked')
      }
    
      onAccept() {
        console.info('Callback when the second button is clicked')
      }
    
      exitApp() {
        console.info('Click the callback in the blank area')
      }
    
      build() {
        Column() {
          Button('click me')
            .onClick(() => {
              if (this.dialogController != null) {
                this.dialogController.open()
              }
            }).backgroundColor(0x317aff)
        }.width('100%').margin({ top: 5 })
      }
    }
    
    // Index2.ets
    @Entry
    @Component
    struct Index2 {
      @State message: string = '点击返回';
    
      build() {
        Column() {
          Button(this.message)
            .type(ButtonType.Capsule)
            .onClick(() => {
               this.getUIContext().getRouter().back({
                 url: 'pages/Index',
                 params: {
                 info: 'Hello World'
               }
            });
          })
        }.width('100%').height('100%').margin({ top: 20 })
      }
    }
    

    DialogRouter

弹出框的动画

弹出框通过定义openAnimation控制弹出框出现动画的持续时间,速度等参数。

@CustomDialog
struct CustomDialogExample {
  controller?: CustomDialogController

  build() {
    Column() {
      Text('Whether to change a text?').fontSize(16).margin({ bottom: 10 })
    }
  }
}

@Entry
@Component
struct CustomDialogUser {
  @State textValue: string = ''
  @State inputValue: string = 'click me'
  dialogController: CustomDialogController | null = new CustomDialogController({
    builder: CustomDialogExample(),
    openAnimation: {
      duration: 1200,
      curve: Curve.Friction,
      delay: 500,
      playMode: PlayMode.Alternate,
      onFinish: () => {
        console.info('play end')
      }
    },
    autoCancel: true,
    alignment: DialogAlignment.Bottom,
    offset: { dx: 0, dy: -20 },
    gridCount: 4,
    customStyle: false,
    backgroundColor: 0xd9ffffff,
    cornerRadius: 10,
  })

  // 在自定义组件即将析构销毁时将dialogController置空
  aboutToDisappear() {
    this.dialogController = null // 将dialogController置空
  }

  build() {
    Column() {
      Button(this.inputValue)
        .onClick(() => {
          if (this.dialogController != null) {
            this.dialogController.open()
          }
        }).backgroundColor(0x317aff)
    }.width('100%').margin({ top: 5 })
  }
}

openAnimator

弹出框的样式

弹出框通过定义宽度、高度、背景色、阴影等参数来控制样式。

@CustomDialog
struct CustomDialogExample {
  controller?: CustomDialogController

  build() {
    Column() {
      Text('我是内容').fontSize(16).margin({ bottom: 10 })
    }
  }
}

@Entry
@Component
struct CustomDialogUser {
  @State textValue: string = ''
  @State inputValue: string = 'click me'
  dialogController: CustomDialogController | null = new CustomDialogController({
    builder: CustomDialogExample(),
    autoCancel: true,
    alignment: DialogAlignment.Center,
    offset: { dx: 0, dy: -20 },
    gridCount: 4,
    customStyle: false,
    backgroundColor: 0xd9ffffff,
    cornerRadius: 20,
    width: '80%',
    height: '100px',
    borderWidth: 1,
    borderStyle: BorderStyle.Dashed,//使用borderStyle属性,需要和borderWidth属性一起使用
    borderColor: Color.Blue,//使用borderColor属性,需要和borderWidth属性一起使用
    shadow: ({ radius: 20, color: Color.Grey, offsetX: 50, offsetY: 0}),
  })

  // 在自定义组件即将析构销毁时将dialogController置空
  aboutToDisappear() {
    this.dialogController = null // 将dialogController置空
  }

  build() {
    Column() {
      Button(this.inputValue)
        .onClick(() => {
          if (this.dialogController != null) {
            this.dialogController.open()
          }
        }).backgroundColor(0x317aff)
    }.width('100%').margin({ top: 5 })
  }
}

custom_style

嵌套自定义弹出框

通过第一个弹出框打开第二个弹出框时,最好将第二个弹出框定义在第一个弹出框的父组件处,通过父组件传给第一个弹出框的回调来打开第二个弹出框。

@CustomDialog
struct CustomDialogExampleTwo {
  controllerTwo?: CustomDialogController
  @State message: string = "I'm the second dialog box."
  @State showIf: boolean = false;
  build() {
    Column() {
      if (this.showIf) {
        Text("Text")
          .fontSize(30)
          .height(100)
      }
      Text(this.message)
        .fontSize(30)
        .height(100)
      Button("Create Text")
        .onClick(()=>{
          this.showIf = true;
        })
      Button ('Close Second Dialog Box')
        .onClick(() => {
          if (this.controllerTwo != undefined) {
            this.controllerTwo.close()
          }
        })
        .margin(20)
    }
  }
}
@CustomDialog
struct CustomDialogExample {
  openSecondBox?: ()=>void
  controller?: CustomDialogController

  build() {
    Column() {
      Button ('Open Second Dialog Box and close this box')
        .onClick(() => {
          this.controller!.close();
          this.openSecondBox!();
        })
        .margin(20)
    }.borderRadius(10)
  }
}
@Entry
@Component
struct CustomDialogUser {
  @State inputValue: string = 'Click Me'
  dialogController: CustomDialogController | null = new CustomDialogController({
    builder: CustomDialogExample({
      openSecondBox: ()=>{
        if (this.dialogControllerTwo != null) {
          this.dialogControllerTwo.open()
        }
      }
    }),
    cancel: this.exitApp,
    autoCancel: true,
    alignment: DialogAlignment.Bottom,
    offset: { dx: 0, dy: -20 },
    gridCount: 4,
    customStyle: false
  })
  dialogControllerTwo: CustomDialogController | null = new CustomDialogController({
    builder: CustomDialogExampleTwo(),
    alignment: DialogAlignment.Bottom,
    offset: { dx: 0, dy: -25 } })

  aboutToDisappear() {
    this.dialogController = null
    this.dialogControllerTwo = null
  }

  onCancel() {
    console.info('Callback when the first button is clicked')
  }

  onAccept() {
    console.info('Callback when the second button is clicked')
  }

  exitApp() {
    console.info('Click the callback in the blank area')
  }
  build() {
    Column() {
      Button(this.inputValue)
        .onClick(() => {
          if (this.dialogController != null) {
            this.dialogController.open()
          }
        }).backgroundColor(0x317aff)
    }.width('100%').margin({ top: 5 })
  }
}

nested_dialog

由于自定义弹出框在状态管理侧有父子关系,如果将第二个弹出框定义在第一个弹出框内,那么当父组件(第一个弹出框)被销毁(关闭)时,子组件(第二个弹出框)内无法再继续创建新的组件。

相关实例

针对自定义弹出框开发,有以下相关实例可供参考: