HarmonyOS 文件选择器，设置最大选择数，没效果

代码设置最大选择数为5 ，但是选择还是单选一个

let documentSelectOptions = new filePicker.DocumentSelectOptions();
documentSelectOptions.maxSelectNumber = 5
let documentPicker = new filePicker.DocumentViewPicker();
let documentSelectResult = await documentPicker.select(documentSelectOptions)
return documentSelectResult

HarmonyOS

zbw_apple

2024-12-25 15:09:47

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回答 1

待解决

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Heiang

使用以下demo试试

import { common } from '@kit.AbilityKit';
import  { picker } from '@kit.CoreFileKit';
import { BusinessError } from '@kit.BasicServicesKit';

@Entry
@Component
struct Index {
  @State message: string = 'hello World';

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
          .onClick(()=>{
            let context = getContext(this) as common.Context; // 请确保getContext(this)返回结果为UIAbilityContext
            // let documentPicker = new picker.DocumentViewPicker();
            example07(context)
          })
      }
      .width('100%')
    }
    .height('100%')
  }
}

async function example07(context: common.Context) { // 需确保 context 由 UIAbilityContext 转换而来
  try {
    let documentSelectOptions = new picker.DocumentSelectOptions();
    documentSelectOptions.maxSelectNumber = 3
    let documentPicker = new picker.DocumentViewPicker(context);
    documentPicker.select(documentSelectOptions).then((documentSelectResult: Array<string>) => {
      console.info('DocumentViewPicker.select successfully, documentSelectResult uri: ' + JSON.stringify(documentSelectResult));
    }).catch((err: BusinessError) => {
      console.error('DocumentViewPicker.select failed with err: ' + JSON.stringify(err));
    });
  } catch (error) {
    let err: BusinessError = error as BusinessError;
    console.error('DocumentViewPicker failed with err: ' + JSON.stringify(err));
  }
}