harmony 鸿蒙@ohos.file.RecentPhotoComponent (RecentPhotoComponent)
@ohos.file.RecentPhotoComponent (RecentPhotoComponent)
The RecentPhotoComponent embedded in the UI of an application allows the application to access the latest image or video in the user directory without the required permission. This component grants the application only the read permission.
NOTE
This component is supported since API version 12. Updates will be marked with a superscript to indicate their earliest API version.
Modules to Import
import {
RecentPhotoComponent, RecentPhotoOptions, RecentPhotoCheckResultCallback,
RecentPhotoClickCallback, PhotoSource, RecentPhotoInfo, RecentPhotoCheckInfoCallback,
} from '@ohos.file.RecentPhotoComponent';
Properties
The universal properties are supported.
RecentPhotoComponent
RecentPhotoComponent({ recentPhotoOptions?: RecentPhotoOptions, onRecentPhotoCheckResult?: RecentPhotoCheckResultCallback, onRecentPhotoClick: RecentPhotoClickCallback, onRecentPhotoCheckInfo?: RecentPhotoCheckInfoCallback, })
Allows the application to access the latest image or video in the user directory without the media access permission.
Decorator: @Component
System capability: SystemCapability.FileManagement.PhotoAccessHelper.Core
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
recentPhotoOptions | RecentPhotoOptions | No | Configuration of the latest image or video. Atomic service API: This API can be used in atomic services since API version 12. |
onRecentPhotoCheckResult | RecentPhotoCheckResultCallback | No | Callback used to return the query result of the latest image or video. Atomic service API: This API can be used in atomic services since API version 12. |
onRecentPhotoClick | RecentPhotoClickCallback | Yes | Callback to be invoked when the latest image or video is selected. Atomic service API: This API can be used in atomic services since API version 12. |
onRecentPhotoCheckInfo13+ | RecentPhotoCheckInfoCallback | No | Callback used to return information about the latest image or video obtained. Atomic service API: This API can be used in atomic services since API version 13. |
RecentPhotoOptions
Represents the configuration of the latest image or video.
Atomic service API: This API can be used in atomic services since API version 12.
System capability: SystemCapability.FileManagement.PhotoAccessHelper.Core
Name | Type | Mandatory | Description |
---|---|---|---|
period | number | No | Time period for the latest image or video, in seconds. The maximum value is 86400 seconds (one day), which is also the default value. If the value is less than or equal to 0, greater than 86400, or not set, the most recent photos over the longest period of up to one day is displayed by default. If there is no image or video in the specified period, the component is not displayed. |
MIMEType | photoAccessHelper.PhotoViewMIMETypes | No | Types of the file displayed. The default value is PhotoViewMIMETypes.IMAGE_VIDEO_TYPE. |
photoSource | PhotoSource | No | Source of the latest image or video, for example, photo or video taken by the camera or screenshot. By default, the source is not restricted. |
RecentPhotoInfo13+
Represents information about the latest image or video.
Atomic service API: This API can be used in atomic services since API version 13.
System capability: SystemCapability.FileManagement.PhotoAccessHelper.Core
Name | Type | Mandatory | Description |
---|---|---|---|
dateTaken | number | No | Time when the latest image or video is taken, in ms. The value is the number of milliseconds elapsed since the Unix epoch (00:00:00 UTC on January 1, 1970). |
identifier | string | No | Hash value of the name of the latest image or video, which is used to help the application determine whether the image or video to be displayed is the same as the one displayed before. |
RecentPhotoCheckResultCallback
type RecentPhotoCheckResultCallback = (recentPhotoExists: boolean) => void
Called to return the query result of the latest image or video.
Atomic service API: This API can be used in atomic services since API version 12.
System capability: SystemCapability.FileManagement.PhotoAccessHelper.Core
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
recentPhotoExists | boolean | Yes | Whether the latest image or video exists. The value true means that the latest image or video exists, and false means the opposite. The default value is true. |
RecentPhotoClickCallback
type RecentPhotoClickCallback = (recentPhotoInfo: BaseItemInfo) => boolean
Called when the latest image or video is selected.
Atomic service API: This API can be used in atomic services since API version 12.
System capability: SystemCapability.FileManagement.PhotoAccessHelper.Core
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
recentPhotoInfo | BaseItemInfo | Yes | Information about the latest image or video. |
Return value
Type | Description |
---|---|
boolean | Processing result of the latest image or video. The value true means that the processing is complete. |
RecentPhotoCheckInfoCallback13+
type RecentPhotoCheckInfoCallback = (recentPhotoExists: boolean, info: RecentPhotoInfo) => void
Called to return whether the latest image or video exists and the information about it.
Atomic service API: This API can be used in atomic services since API version 13.
System capability: SystemCapability.FileManagement.PhotoAccessHelper.Core
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
recentPhotoExists | boolean | Yes | Whether the latest image or video exists. The value true means that the latest image or video exists, and false means the opposite. The default value is true. |
info | RecentPhotoInfo | Yes | Information about the latest image or video. |
PhotoSource
Enumerates the sources of the image or video data.
Atomic service API: This API can be used in atomic services since API version 12.
System capability: SystemCapability.FileManagement.PhotoAccessHelper.Core
Name | Value | Description |
---|---|---|
ALL | 0 | Images and videos from all sources. |
CAMERA | 1 | Photo or video taken by the camera. |
SCREENSHOT | 2 | Screenshot or screen capture video. |
Example
// xxx.ets
import {
photoAccessHelper
} from '@kit.MediaLibraryKit';
import {
RecentPhotoComponent, RecentPhotoOptions, PhotoSource, RecentPhotoInfo, RecentPhotoCheckResultCallback, RecentPhotoClickCallback, RecentPhotoCheckInfoCallback
} from '@ohos.file.RecentPhotoComponent';
import {
BaseItemInfo
} from '@ohos.file.PhotoPickerComponent';
@Entry
@Component
struct PickerDemo {
private recentPhotoOptions: RecentPhotoOptions = new RecentPhotoOptions();
private recentPhotoCheckResultCallback: RecentPhotoCheckResultCallback = (recentPhotoExists: boolean) => this.onRecentPhotoCheckResult(recentPhotoExists);
private recentPhotoClickCallback: RecentPhotoClickCallback = (recentPhotoInfo: BaseItemInfo): boolean => this.onRecentPhotoClick(recentPhotoInfo);
private recentPhotoCheckInfoCallback: RecentPhotoCheckInfoCallback = (recentPhotoExists: boolean, info: RecentPhotoInfo) => this.onRecentPhotoCheckInfo(recentPhotoExists, info);
aboutToAppear() {
this.recentPhotoOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.IMAGE_VIDEO_TYPE;
this.recentPhotoOptions.period = 30;
this.recentPhotoOptions.photoSource = PhotoSource.ALL;
}
private onRecentPhotoCheckResult(recentPhotoExists: boolean): void {
// Photo or video that meets the search criteria exists.
if (recentPhotoExists) {
console.info('The photo is exist.');
}
}
private onRecentPhotoClick(recentPhotoInfo: BaseItemInfo): boolean {
// Return the photo or video.
if (recentPhotoInfo) {
console.info('The photo uri is ' + recentPhotoInfo.uri);
return true;
}
return true;
}
private onRecentPhotoCheckInfo(recentPhotoExists: boolean, info: RecentPhotoInfo): void {
// Check whether a photo or video that meets the conditions exists. If yes, obtain information about the photo or video.
}
build() {
Stack() {
RecentPhotoComponent({
recentPhotoOptions: this.recentPhotoOptions,
onRecentPhotoCheckResult: this.recentPhotoCheckResultCallback,
onRecentPhotoClick: this.recentPhotoClickCallback,
onRecentPhotoCheckInfo: this.recentPhotoCheckInfoCallback,
}).height('100%').width('100%')
}
}
}
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