HarmonyOS 鸿蒙Next 相册读写权限
HarmonyOS 鸿蒙Next 相册读写权限
更多关于HarmonyOS 鸿蒙Next 相册读写权限的实战系列教程也可以访问 https://www.itying.com/category-93-b0.html
可以通过调用这个接口
通过picker拉起图库选择图片,不需要进行授权(应用是有界面的,无界面无法拉起图库)无应用限制的,三方应用都可以调用
无需设置额外的权限就可以访问到手机相册,参考demo:
import { BusinessError } from ‘@ohos.base’;
import photoAccessHelper from ‘@ohos.file.photoAccessHelper’;
@Entry
@Component
struct ss{
build() {
Button(‘访问手机相册’).onClick(()=>{
try {
let PhotoSelectOptions = new photoAccessHelper.PhotoSelectOptions();
PhotoSelectOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE;
PhotoSelectOptions.maxSelectNumber = 5;
let photoPicker = new photoAccessHelper.PhotoViewPicker();
photoPicker.select(PhotoSelectOptions).then((PhotoSelectResult: photoAccessHelper.PhotoSelectResult) => {
console.info('PhotoViewPicker.select successfully, PhotoSelectResult uri: ’ + JSON.stringify(PhotoSelectResult));
}).catch((err: BusinessError) => {
console.error('PhotoViewPicker.select failed with err: ’ + JSON.stringify(err));
});
} catch (error) {
let err: BusinessError = error as BusinessError;
console.error('PhotoViewPicker failed with err: ’ + JSON.stringify(err));
}
})
}
}
可以不用申请权限,参考如下demo试下:
import picker from '@ohos.multimedia.cameraPicker';
import camera from '@ohos.multimedia.camera';
import common from '@ohos.app.ability.common';
import { BusinessError } from '@ohos.base';
@Entry
@Component
struct Index {
mContext = getContext(this) as common.Context;
async demo() {
try {
let pickerProfile: picker.PickerProfile = {
cameraPosition: camera.CameraPosition.CAMERA_POSITION_BACK
};
let pickerResult: picker.PickerResult = await picker.pick(this.mContext,
[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}`);
}
}
@State message: string = 'Hello World';
build() {
Row() {
Column() {
Button(this.message)
.onClick(()=>{
this.demo()
})
}
.width('100%')
}
.height('100%')
}
}
保存图片也可以不申请ohos.permission.WRITE_IMAGEVIDEO的权限,参考链接https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/savebutton-0000001820999677-V5
您可以参考这边的codelab使用PhotoViewPicker保存图片到图库
https://developer.huawei.com/consumer/cn/codelabsPortal/carddetails/tutorials_NEXT-FilesManger
更多关于HarmonyOS 鸿蒙Next 相册读写权限的实战系列教程也可以访问 https://www.itying.com/category-93-b0.html
photoAccessHelper.PhotoSelectResult的uri,元服务不支持getAssets获取图片
在HarmonyOS 鸿蒙Next系统中,相册读写权限的管理与Android系统有所不同,但同样注重用户隐私保护。以下是如何在HarmonyOS应用中请求相册读写权限的基本步骤:
-
配置权限声明: 在应用的
config.json
文件中,需要声明对相册读写权限的需求。添加以下配置:"module": { "package": "com.example.yourapp", "reqPermissions": [ "ohos.permission.READ_MEDIA", "ohos.permission.WRITE_MEDIA" ] }
-
动态请求权限: 在运行时,应用需要动态请求用户授予相册读写权限。可以使用
PermissionManager
和PermissionRequest
类来实现:var permissionManager = PermissionManager.create(); var permissions = [ "ohos.permission.READ_MEDIA", "ohos.permission.WRITE_MEDIA" ]; permissionManager.requestPermissionsFromUser(permissions, (permissions, grantResults) => { // 处理权限请求结果 });
注意:此处示例代码框架与Java类似,但实际代码应使用HarmonyOS的ArkUI或JS扩展API。
-
处理权限结果: 在回调中检查
grantResults
,以确定用户是否授予了所需权限。
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