HarmonyOS 鸿蒙Next image.createImageSource 打不开 photoViewPicker.select 出来的URI
HarmonyOS 鸿蒙Next image.createImageSource 打不开 photoViewPicker.select 出来的URI
我已将请求并拿到了三个权限：[‘ohos.permission.READ_MEDIA’,‘ohos.permission.WRITE_MEDIA’, ‘ohos.permission.MEDIA_LOCATION’]，但是imageSource始终是ubdefined
这种情况该怎么办啊
uri的值是：file://media/Photo/1/IMG_1722854354_000/test.png
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该接口仅支持应用沙箱路径。
需要将其复制到对应沙箱，才能进行相关操作。
import picker from ‘@ohos.multimedia.cameraPicker’ import camera from ‘@ohos.multimedia.camera’; import common from ‘@ohos.app.ability.common’; import { BusinessError } from ‘@ohos.base’; import fileuri from ‘@ohos.file.fileuri’; import fs from ‘@ohos.file.fs’; import photoAccessHelper from ‘@ohos.file.photoAccessHelper’;
let context = getContext(this) as common.Context;
class CameraPosition { cameraPosition: camera.CameraPosition saveUri: string
constructor(cameraPosition: camera.CameraPosition, saveUri: string) { this.cameraPosition = cameraPosition this.saveUri = saveUri } }
let pathDir = getContext().filesDir;
console.log(‘保存路径为’+pathDir)
let filePath = pathDir + ‘/picture.jpg’
fs.createRandomAccessFileSync(filePath, fs.OpenMode.CREATE);
let uri = fileuri.getUriFromPath(filePath);
async function photo() {
try {
let pickerProfile = new CameraPosition(camera.CameraPosition.CAMERA_POSITION_BACK, uri)
let pickerResult: picker.PickerResult = await picker.pick(context,
[picker.PickerMediaType.PHOTO, picker.PickerMediaType.VIDEO], pickerProfile);
console.log(“the pick pickerResult is:” + JSON.stringify(pickerResult));
} catch (error) {
let err = error as BusinessError;
console.error(the pick call failed. error code: ${err.code});
}
}
async function picture() {
let PhotoSelectOptions = new photoAccessHelper.PhotoSelectOptions();
PhotoSelectOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE;
PhotoSelectOptions.maxSelectNumber = 1;
let photoPicker = new photoAccessHelper.PhotoViewPicker();
photoPicker.select(PhotoSelectOptions).then((PhotoSelectResult: photoAccessHelper.PhotoSelectResult) => {
let photouri: Array<string> = PhotoSelectResult.photoUris
let file = fs.openSync(photouri[0], fs.OpenMode.READ_ONLY)
let file2 = fs.openSync(pathDir+’/picture2.jpg’, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE)
fs.copyFileSync(file.fd, file2.fd)
fs.closeSync(file);
fs.closeSync(file2);
})
}
@Entry @Component export struct Index { build() { Column() { Button(‘选择并保存’).onClick(() => { picture() }) Button(‘拍照并保存’).onClick(() => { photo() }) } } }
权限申请，你试一下添加和我下面一样的，再运行看看
const PERMISSIONS: Array<Permissions> = [
'ohos.permission.READ_MEDIA',
'ohos.permission.WRITE_MEDIA',
'ohos.permission.MEDIA_LOCATION',
'ohos.permission.MANAGE_MISSIONS',
'ohos.permission.WRITE_IMAGEVIDEO'
];<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>
会不会是异步问题，你加上await看一下 类似这样的 // 获取图片源 let imageSource: PixelMap = await image.createImageSource(fd).createPixelMap();
