怎么实现自定义弹窗1打开自定义弹窗2？

Question

怎么实现自定义弹窗1打开自定义弹窗2

Answer 1

使用CustomDialogController实现。需要注意如下两点：

1. 必须在自定义弹窗1中实例化一个控制器，里面的builder传自定义弹窗2中的内容
2. 自定义弹窗1自身的控制器定义放在最后。

示例代码

@Entry 
@Component 
struct DialogTest { 
  @State dialogTitle: string = ''; 
  @State dialogData: string = ''; 
  dialogController2: CustomDialogController = new CustomDialogController({ 
    builder: MyDialog2({ 
      title: '弹窗2', 
      data: this.dialogData, 
      confirm: this.confirm.bind(this), // 绑定自定义的回调函数,这里要修改this的指向 
    }), 
    customStyle: false 
  }) 
  dialogController1: CustomDialogController = new CustomDialogController({ 
    builder: MyDialog1({ 
      controller2: this.dialogController2, 
      title: '弹窗1', 
      data: this.dialogData, 
      confirm: this.confirm.bind(this) // 绑定自定义的回调函数,这里要修改this的指向 
    }), 
    customStyle: false 
  }) 
 
  confirm(data: string) { 
    this.dialogData = data; 
    console.info(`recv dialog data: ${data}`); // 获取弹窗输入的信息 
  } 
 
  build() { 
    Row() { 
      Column({ space: 10 }) { 
        Button('点击打开弹窗1') 
          .onClick(() => { 
            this.dialogController1.open(); 
          }) 
        Text(`接受弹窗的数据：`) 
          .fontSize(20) 
        TextInput({ placeholder: "输入内容", text: this.dialogData }) 
          .width("50%") 
          .onChange((data) => { 
            this.dialogData = data; // 获取输入框数据 
          }) 
      }.width("100%") 
    }.height("100%") 
  } 
} 
 
// 弹窗组件 
@CustomDialog 
struct MyDialog1 { 
  controller2: CustomDialogController 
  controller1: CustomDialogController 
  title: string = ''; 
  confirm: (data: string) => void = () => { 
  }; 
  data: string = ''; 
 
  build() { 
    Row() { 
      Column({ space: 10 }) { 
        Text(this.title) 
          .fontSize(30) 
          .fontColor(Color.Blue) 
        Button('点击打开弹窗2') 
          .onClick(() => { 
            this.controller2.open(); 
          }).backgroundColor(0xffffff).fontColor(Color.Red) 
        Flex({ justifyContent: FlexAlign.SpaceAround }) { 
          Button('cancel') 
            .onClick(() => { 
              this.controller1.close(); 
            }).backgroundColor(0xffffff).fontColor(Color.Black) 
        }.width("100%") 
      }.width("50%") 
    }.height("50%") 
  } 
} 
 
// 弹窗组件 
@CustomDialog 
struct MyDialog2 { 
  controller: CustomDialogController; 
  title: string = ''; 
  confirm: (data: string) => void = () => { 
  }; 
  data: string = ''; 
 
  build() { 
    Row() { 
      Column({ space: 10 }) { 
        Text(this.title) 
          .fontSize(30) 
          .fontColor(Color.Blue) 
        TextInput({ placeholder: "输入内容", text: this.data }) 
          .onChange((data) => { 
            this.data = data; // 获取输入框数据 
          }) 
 
        Flex({ justifyContent: FlexAlign.SpaceAround }) { 
          Button('cancel') 
            .onClick(() => { 
              this.controller.close(); 
            }).backgroundColor(0xffffff).fontColor(Color.Black) 
          Button('confirm') 
            .onClick(() => { 
              this.confirm(this.data); // 将输入框数据通过回调函数传给主页面 
              this.controller.close(); 
            }).backgroundColor(0xffffff).fontColor(Color.Red) 
        }.width("100%") 
      }.margin({ bottom: 10 }) 
    }.height("50%") 
  } 
}