图片下载获取权限

chenjun
Commit 4049b9ee31168c06d6a562ab634167a51d405c54 4049b9ee 1 parent 115ff784
Showing 1 changed file with 80 additions and 40 deletions
sight_harmony/features/wdComponent/src/main/ets/components/ImageDownloadComponent.ets
--- a/sight_harmony/features/wdComponent/src/main/ets/components/ImageDownloadComponent.ets
View file @4049b9e
+++ b/sight_harmony/features/wdComponent/src/main/ets/components/ImageDownloadComponent.ets
View file @4049b9e
@@ -5,7 +5,12 @@ import { promptAction } from '@kit.ArkUI';
 import { image } from '@kit.ImageKit';
 import { photoAccessHelper } from '@kit.MediaLibraryKit';
 import fs from '@ohos.file.fs';
-import { NetworkUtil } from 'wdKit';
+import { DateTimeUtils, NetworkUtil, PermissionUtil } from 'wdKit';
+import { PrivacySettingModel } from '../model/PrivacySettingModel';
+import { TrackConstants, TrackingButton } from 'wdTracking';
+import { faceDetector } from '@kit.CoreVisionKit';
+import mediaLibrary from '@ohos.multimedia.mediaLibrary';
+import fileIo from '@ohos.file.fs';
 const PERMISSIONS: Array<Permissions> = [
   'ohos.permission.READ_IMAGEVIDEO',
@@ -22,6 +27,8 @@ export struct ImageDownloadComponent {
   @State photoAccessHelper: photoAccessHelper.PhotoAccessHelper | undefined = undefined; // 相册模块管理实例
   @State imageBuffer: ArrayBuffer | undefined = undefined; // 图片ArrayBuffer
   @Prop @Watch('onChangeUrl') url: string = ''
+  @State isGranted: boolean = false
+  @State name: string = ''
   build() {
     Column() {
@@ -34,14 +41,20 @@ export struct ImageDownloadComponent {
         .backgroundColor(Color.Transparent)
         .iconColor(Color.White)
         .onClick(async () => {
-          console.info(`cj2024 onClick ${this.imageBuffer}`)
+          //console.info(`cj2024 onClick ${this.imageBuffer}`)
           if (this.imageBuffer !== undefined) {
-            await this.saveImage(this.imageBuffer);
-            promptAction.showToast({
-              message: $r('app.string.image_request_success'),
-              duration: 2000,
-              alignment:Alignment.Center
-            })
+            try {
+              await this.saveImage(this.imageBuffer);
+              promptAction.showToast({
+                message: $r('app.string.image_request_success'),
+                duration: 2000,
+                alignment: Alignment.Center
+              })
+            } catch (error) {
+              const err: BusinessError = error as BusinessError;
+              //console.info(`Failed to save photo. Code is ${err.code}, message is ${err.message}`);
+              promptAction.showToast({ message: '保存图片失败！' });
+            }
           }
         })
     }
@@ -55,10 +68,11 @@ export struct ImageDownloadComponent {
       // 有网络
       this.onChangeUrl()
     }
+
   }
   async onChangeUrl(): Promise<void> {
-    console.info(`cj2024 图片下载 ${this.url}`)
+    //console.info(`cj2024 图片下载 ${this.url}`)
     const context = getContext(this) as common.UIAbilityContext;
     const atManager = abilityAccessCtrl.createAtManager();
     await atManager.requestPermissionsFromUser(context, PERMISSIONS);
@@ -73,7 +87,7 @@ export struct ImageDownloadComponent {
     let httpRequest = http.createHttp();
     // 用于订阅HTTP响应头事件
     httpRequest.on('headersReceive', (header: Object) => {
-      console.info('header: ' + JSON.stringify(header));
+      //console.info('header: ' + JSON.stringify(header));
     });
     // 用于订阅HTTP流式响应数据接收事件
     let res = new ArrayBuffer(0);
@@ -83,40 +97,40 @@ export struct ImageDownloadComponent {
       resView.set(new Uint8Array(res));
       resView.set(new Uint8Array(data), res.byteLength);
       res = newRes;
-      // console.info('dataReceive res length: ' + res.byteLength);
+      // //console.info('dataReceive res length: ' + res.byteLength);
     });
     // 用于订阅HTTP流式响应数据接收完毕事件
     httpRequest.on('dataEnd', () => {
       this.transcodePixelMap(res);
       // 判断网络获取到的资源是否为ArrayBuffer类型
-      console.info(`dataEnd getPicture ${res}`)
+      //console.info(`dataEnd getPicture ${res}`)
       if (res instanceof ArrayBuffer) {
-        console.info(`dataEnd getPicture`)
+        //console.info(`dataEnd getPicture`)
         this.imageBuffer = res as ArrayBuffer;
       }
-      console.info('No more data in response, data receive end');
+      //console.info('No more data in response, data receive end');
     });
     httpRequest.requestInStream(this.url,
-        (error: BusinessError, data: number) => {
-          if (error) {
-            // 下载失败时弹窗提示检查网络，不执行后续逻辑
-            promptAction.showToast({
-              message: $r('app.string.image_request_fail'),
-              duration: 2000
-            })
-            console.error(`http reqeust failed with. Code: ${error.code}, message: ${error.message}`);
-            return;
-          }
-          // 取消订阅HTTP响应头事件
-          httpRequest.off('headersReceive');
-          // 取消订阅HTTP流式响应数据接收事件
-          httpRequest.off('dataReceive');
-          // 取消订阅HTTP流式响应数据接收完毕事件
-          httpRequest.off('dataEnd');
-          // 当该请求使用完毕时，调用destroy方法主动销毁
-          httpRequest.destroy();
+      (error: BusinessError, data: number) => {
+        if (error) {
+          // 下载失败时弹窗提示检查网络，不执行后续逻辑
+          promptAction.showToast({
+            message: $r('app.string.image_request_fail'),
+            duration: 2000
+          })
+          //console.error(`http reqeust failed with. Code: ${error.code}, message: ${error.message}`);
+          return;
         }
-      )
+        // 取消订阅HTTP响应头事件
+        httpRequest.off('headersReceive');
+        // 取消订阅HTTP流式响应数据接收事件
+        httpRequest.off('dataReceive');
+        // 取消订阅HTTP流式响应数据接收完毕事件
+        httpRequest.off('dataEnd');
+        // 当该请求使用完毕时，调用destroy方法主动销毁
+        httpRequest.destroy();
+      }
+    )
   }
   /**
@@ -147,13 +161,39 @@ export struct ImageDownloadComponent {
    * @returns
    */
   async saveImage(buffer: ArrayBuffer | string): Promise<void> {
-    console.info(`cj2024 saveImage buffer ${buffer}`)
+    //console.info(`cj2024 saveImage buffer ${buffer}`)
+    if (!this.isGranted) {
+      //跳转权限设置
+      // const permissionUtil = new PermissionUtil();
+      PermissionUtil.reqPermissionsFromUser(['ohos.permission.READ_MEDIA'], this).then((res) => {
+        this.isGranted = res;
+      });
+    } else {
+      // PermissionUtil.openPermissionsInSystemSettings(this);
+    }
+
+
     const context = getContext(this) as common.UIAbilityContext; // 获取getPhotoAccessHelper需要的context
-    const helper = photoAccessHelper.getPhotoAccessHelper(context); // 获取相册管理模块的实例
-    const uri = await helper.createAsset(photoAccessHelper.PhotoType.IMAGE, 'jpg'); // 指定待创建的文件类型、后缀和创建选项，创建图片或视频资源
-    console.info(`cj2024 saveImage uri ${uri}`)
-    const file = await fs.open(uri, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
-    await fs.write(file.fd, buffer);
-    await fs.close(file.fd);
+    // const helper = photoAccessHelper.getPhotoAccessHelper(context); // 获取相册管理模块的实例
+    // const uri = await helper.createAsset(photoAccessHelper.PhotoType.IMAGE, 'jpg'); // 指定待创建的文件类型、后缀和创建选项，创建图片或视频资源
+    // //console.info(`cj2024 saveImage uri ${uri}`)
+    // const file = await fs.open(uri, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
+    // await fs.write(file.fd, buffer);
+    // await fs.close(file.fd);
+    let media = mediaLibrary.getMediaLibrary(context);
+    let publicPath = await media.getPublicDirectory(mediaLibrary.DirectoryType.DIR_IMAGE);
+    let picName = DateTimeUtils.getCurDate(DateTimeUtils.PATTERN_DATE_TIME_DEFAULT) + '.jpg'
+    // //console.info(`cj2024 saveImage time ${picName}`)
+    let asset = await media.createAsset(mediaLibrary.MediaType.IMAGE, picName, publicPath);
+
+    if (asset) {
+      let fd = await asset.open('rw');
+      await fileIo.write(fd, buffer);
+      await asset.close(fd);
+      promptAction.showToast({ message: '已保存至相册！' });
+    } else {
+      promptAction.showToast({ message: '保存图片失败！' });
+      throw new Error('Failed to create asset');
+    }
   }
 }