通过系统相机拍照和录像(CameraPicker),无需申请相机权限。

import { camera, cameraPicker as picker } from '@kit.CameraKit';
import { fileIo, fileUri } from '@kit.CoreFileKit';

@Entry
@Component
struct Index {
  @State imgSrc: string = '';
  @State videoSrc: string = '';
  createPickerProfile(context: Context): picker.PickerProfile {
    let pathDir = context.filesDir;
    let fileName = `${new Date().getTime()}`;
    let filePath = pathDir + `/${fileName}.tmp`;
    fileIo.createRandomAccessFileSync(filePath, fileIo.OpenMode.CREATE);
    
    let uri = fileUri.getUriFromPath(filePath);
    let pickerProfile: picker.PickerProfile = {
      cameraPosition: camera.CameraPosition.CAMERA_POSITION_BACK,
      saveUri: uri
    };
    return pickerProfile;
  }
  async getPickerResult(context: Context, pickerProfile: picker.PickerProfile): Promise<picker.PickerResult> {
    let result: picker.PickerResult =
      await picker.pick(context, [picker.PickerMediaType.PHOTO, picker.PickerMediaType.VIDEO],
        pickerProfile);
    console.info(`picker resultCode: ${result.resultCode},resultUri: ${result.resultUri},mediaType: ${result.mediaType}`);
    return result;
  }
  getContext(): Context | undefined {
    let uiContext: UIContext = this.getUIContext();
    let context: Context | undefined = uiContext.getHostContext();
    return context;
  }
  build() {
    RelativeContainer() {
      Column() {
        Image(this.imgSrc).width(200).height(200).backgroundColor(Color.Black).margin(5);
        Video({ src: this.videoSrc}).width(200).height(200).autoPlay(true);
        Button("Test Picker Photo&Video").fontSize(20)
          .fontWeight(FontWeight.Bold)
          .onClick(async () => {
            let context = this.getContext();
            if (context === undefined) {
              return;
            }
            let pickerProfile = this.createPickerProfile(context);
            let result = await this.getPickerResult(context, pickerProfile);
            if (result.resultCode == 0) {
              if (result.mediaType === picker.PickerMediaType.PHOTO) {
                this.imgSrc = result.resultUri;
              } else {
                this.videoSrc = result.resultUri;
              }
            }
          }).margin(5);
      }.alignRules({
        center: { anchor: '__container__', align: VerticalAlign.Center },
        middle: { anchor: '__container__', align: HorizontalAlign.Center }
      });
    }
    .height('100%')
    .width('100%')
  }
}