HarmonyOS 鸿蒙Next相册时间问题咨询

参考：https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-image-V5#getimageproperties12

下述demo可以获取照片的拍照时间，

demo：

Button('打开相册')
.onClick(() => {
//创建图库选择器对象实例
const photoViewPicker =new photoAccessHelper.PhotoViewPicker();
//调用select()接口拉起图库界面进行文件选择,文件选择成功后，返回PhotoSelectResult结果集
photoViewPicker.select().then(async (photoSelectResult: picker.PhotoSelectResult) => {
//用一个全局变量存储返回的uri
selectUris = photoSelectResult.photoUris;
console.info(‘photoViewPicker.select to file succeed and uris are:’ + selectUris);
}).catch((err: BusinessError) => {
console.error(Invoke photoViewPicker.select failed, code is ${err.code}, message is ${err.message});
})
})
Button(‘creatPixelMap’)
.margin({ top: 10 })
.onClick((event: ClickEvent) => {
//使用fs.openSync接口，通过uri打开这个文件得到fd
let file = fs.openSync(selectUris[0], fs.OpenMode.READ_ONLY);
console.info('file fd: ’ + file.fd);
//根据文件fd创建imagSource
const imageSource: image.ImageSource = image.createImageSource(file.fd);
let key = [image.PropertyKey.IMAGE_WIDTH, image.PropertyKey.IMAGE_LENGTH, image.PropertyKey.DATE_TIME_ORIGINAL];
imageSource.getImageProperties(key).then((data) => {
console.info(JSON.stringify(data));
}).catch((err: BusinessError) => {
console.error(JSON.stringify(err));
});//这个年月日之间使用冒号是标准，后续不会改变