Stage模型

版本：Api9，Stage模型

import mediaLibrary from '@ohos.multimedia.mediaLibrary';
import Ability from '@ohos.application.Ability';
import AbilityStage from "@ohos.application.AbilityStage";
import context from '@ohos.application.context';
@Entry
@Component
struct Index {
  @State message: string = '选择单张图片'
  @State img: string = ''
  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold).onClick(()=>{
          let context = getContext(this) as any
          let startParmameter = {
            bundleName:"com.ohos.photos",
            abilityName: "com.ohos.photos.MainAbility",
            parameters: {
              uri: "singleselect"
            }
          };
          context.startAbilityForResult(startParmameter).then((result) => {
            console.info(`startAbilityForResult Promise.resolve is called, result.resultCode =  ${JSON.stringify(result)}`)
            let want = result['want'];
            console.info(`test select single ${JSON.stringify(want)}`);
            if (want != null && want != undefined) {
              let param = want['parameters'];
              console.info(`test select single ${JSON.stringify(param)}`);
              if (param != null && param != undefined) {
                let uri = param['select-item-list'];
                this.img=param['select-item-list'];
                console.info(`图片路径是 ${uri}`);
              }
            }
          }, (error) => {
            console.info(`startAbilityForResult Promise.Reject is called, error.code = ${error.code}`)
          })
        })
        Image(this.img).width(50).height(50)

      .width('100%')
    }
    .height('100%')
  }
}}