自定義彈窗

接口

CustomDialogController(value:{builder: CustomDialog, cancel?: () => void, autoCancel?: boolean, alignment?: DialogAlignment, offset?: Offset, customStyle?: boolean, gridCount?: number})

參數(shù):

CustomDialogController

導(dǎo)入對(duì)象

dialogController : CustomDialogController = new CustomDialogController(value:{builder: CustomDialog, cancel?: () => void, autoCancel?: boolean})

open()

open(): void

顯示自定義彈窗內(nèi)容，允許多次使用，但如果彈框?yàn)镾ubWindow模式，則該彈框不允許再彈出SubWindow彈框。

close

close(): void

關(guān)閉顯示的自定義彈窗，若已關(guān)閉，則不生效。

示例

// xxx.ets
@CustomDialog
struct CustomDialogExample {
  @Link textValue: string
  @Link inputValue: string
  controller: CustomDialogController
  // 若嘗試在CustomDialog中傳入多個(gè)其他的Controller，以實(shí)現(xiàn)在CustomDialog中打開另一個(gè)或另一些CustomDialog，那么此處需要將指向自己的controller放在最后
  cancel: () => void
  confirm: () => void

  build() {
    Column() {
      Text('Change text').fontSize(20).margin({ top: 10, bottom: 10 })
      TextInput({ placeholder: '', text: this.textValue }).height(60).width('90%')
        .onChange((value: string) => {
          this.textValue = value
        })
      Text('Whether to change a text?').fontSize(16).margin({ bottom: 10 })
      Flex({ justifyContent: FlexAlign.SpaceAround }) {
        Button('cancel')
          .onClick(() => {
            this.controller.close()
            this.cancel()
          }).backgroundColor(0xffffff).fontColor(Color.Black)
        Button('confirm')
          .onClick(() => {
            this.inputValue = this.textValue
            this.controller.close()
            this.confirm()
          }).backgroundColor(0xffffff).fontColor(Color.Red)
      }.margin({ bottom: 10 })
    }
    // dialog默認(rèn)的borderRadius為24vp，如果需要使用border屬性，請(qǐng)和borderRadius屬性一起使用。
  }
}

@Entry
@Component
struct CustomDialogUser {
  @State textValue: string = ''
  @State inputValue: string = 'click me'
  dialogController: CustomDialogController = new CustomDialogController({
    builder: CustomDialogExample({
      cancel: this.onCancel,
      confirm: this.onAccept,
      textValue: $textValue,
      inputValue: $inputValue
    }),
    cancel: this.existApp,
    autoCancel: true,
    alignment: DialogAlignment.Bottom,
    offset: { dx: 0, dy: -20 },
    gridCount: 4,
    customStyle: false
  })

  // 在自定義組件即將析構(gòu)銷毀時(shí)將dialogController置空
  aboutToDisappear() {
    this.dialogController = undefined // 將dialogController置空
  }

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

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

  existApp() {
    console.info('Click the callback in the blank area')
  }

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