HarmonyOS photoAccessHelper.getAssets报错:errCode:14000014 errMsg:member not exist
通过photoViewPicker取得照片的uri后,再使用photoAccessHelper.getAssets,出现报错:
errCode:14000014 errMsg:member not exist
工程机版本:ALT-AL10 3.0.0.22(SP35DEVC00E22R6P1log)
DevEco Studio版本:5.0.3.200
SDK版本:5.0.0.22
async handle():void{
const count =4;
const photoSelectOptions = new photoAccessHelper.PhotoSelectOptions();
photoSelectOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE; // 过滤选择媒体文件类型为IMAGE
photoSelectOptions.maxSelectNumber = count; // 选择媒体文件的最大数目
const photoViewPicker = new photoAccessHelper.PhotoViewPicker();
try {
const photoSelectResult: photoAccessHelper.PhotoSelectResult = await photoViewPicker.select(photoSelectOptions);
const uris = photoSelectResult.photoUris;
console.info('photoViewPicker.select to file succeed and uris are:' + uris);
const tempImgs: Array<TempImage> = [];
for (let i = 0 ; i < uris.length ; i++) {
const tempImg = await getImageInfo(uris[i], getContext(this));
tempImgs.push(tempImg);
}
} catch (err) {
return this.onFailure(-1, `selectImages error occurs. ${err}`);
}
}
async function getImageInfo(uri: string, context: Context): Promise<TempImage> {
let phAccessHelper = photoAccessHelper.getPhotoAccessHelper(context);
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
predicates.equalTo(photoAccessHelper.PhotoKeys.URI, uri.toString());
let fetchOptions: photoAccessHelper.FetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
const PhotoKeys = photoAccessHelper.PhotoKeys;
const pixelMap = await photoAsset.getThumbnail({ width: 120, height: 120 })
const base64 = await converToBase64(pixelMap);
const result: TempImage = {
file_size: photoAsset.get(PhotoKeys.SIZE) as number,
file_type: convertToFileType(photoAsset.photoType) as number,
image_height: photoAsset.get(PhotoKeys.HEIGHT) as number,
image_width: photoAsset.get(PhotoKeys.WIDTH) as number,
original_height: photoAsset.get(PhotoKeys.HEIGHT) as number,
original_width: photoAsset.get(PhotoKeys.WIDTH) as number,
path: uri, // "file:///private/var/mobile/Containers/Data/Application/D64C9CD3-3E33-412C-BFCC-1BAEFF52887B/tmp/0DF557E6-ED48-4696-BB94-8C4104A67870"
path_uri: uri, // "/tmp/0DF557E6-ED48-4696-BB94-8C4104A67870"
thumb: base64
}
console.info('base64: ' + base64);
fetchResult.close();
return result;
}
HarmonyOS
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请将IDE升级到canary3版本,5.0.3.300重新编译成员参数名称,在get时,除了uri、photoType和displayName三个属性之外,其他的属性都需要在fetchColumns中填入需要get的PhotoKeys,例如:get title属性fetchColumns: [‘title’]。
https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-photoaccesshelper-V5#ZH-CN_TOPIC_0000001893368817__get