新增媒体图片file://格式

Signed-off-by: zgf <zenggaofeng2@h-partners.com>

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 3.0.0-rc.7
 - 修复成功回调获取不到宽高
 - 新增svg图片解码
+- 新增媒体图片file://格式
 
 ## 3.0.0-rc.6
 - 支持多种组合变换

entry/src/main/ets/entryability/EntryAbility.ets

@@ -19,6 +19,8 @@ import Want from '@ohos.app.ability.Want';
 import window from '@ohos.window';
 import { ImageKnife, InitImageKnife, LogUtil } from '@ohos/libraryimageknife';
 import { CustomEngineKeyImpl } from '../common/CustomEngineKeyImpl';
+import abilityAccessCtrl, { Permissions } from '@ohos.abilityAccessCtrl';
+import { BusinessError } from '@ohos.base'
 
 export default class EntryAbility extends UIAbility {
   onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
@@ -31,6 +33,18 @@ export default class EntryAbility extends UIAbility {
 
   async onWindowStageCreate(windowStage: window.WindowStage): Promise<void> {
     // Main window is created, set main page for this ability
+    let list: Array<Permissions> = ['ohos.permission.MEDIA_LOCATION', 'ohos.permission.READ_MEDIA'];
+    let permissionRequestResult: Object;
+    let atManager = abilityAccessCtrl.createAtManager();
+    atManager.requestPermissionsFromUser(this.context, list, (err: BusinessError, result: Object) => {
+      if (err) {
+
+      } else {
+        permissionRequestResult = result;
+
+      }
+    })
+
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
 
     LogUtil.mLogLevel = LogUtil.ALL

entry/src/main/ets/pages/Index.ets

@@ -126,6 +126,13 @@ struct Index {
           });
         })
 
+        Button("测试媒体url").margin({top:10}).onClick(()=>{
+          router.push({
+            uri: 'pages/dataShareUriLoadPage',
+
+          });
+        })
+
       }
     } .width('100%')
     .height('100%')

entry/src/main/ets/pages/dataShareUriLoadPage.ets

@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import mediaLibrary from '@ohos.multimedia.mediaLibrary';
+import { ImageKnifeComponent, ImageKnifeOption } from '@ohos/libraryimageknife'
+
+
+@Entry
+@Component
+struct DataShareUriLoadPage {
+  @State imageKnifeOption1: ImageKnifeOption =
+    {
+      loadSrc: $r('app.media.icon'),
+
+      placeholderSrc: $r('app.media.loading'),
+      errorholderSrc: $r('app.media.failed')
+    };
+
+
+  build() {
+    Scroll() {
+      Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
+        Text("获取媒体图库的uri用ImageKnife展示").fontSize(15)
+        Flex({ direction: FlexDirection.Row, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
+          Button("点击加载Uri并展示")
+            .onClick(() => {
+              // 获取mediaLibrary实例，后续用到此实例均采用此处获取的实例
+              const context = getContext(this);
+              let media = mediaLibrary.getMediaLibrary(context);
+
+              let imageType = mediaLibrary.MediaType.IMAGE;
+              // 创建文件获取选项，此处参数为获取image类型的文件资源
+              let imagesFetchOp:mediaLibrary.MediaFetchOptions = {
+                selections: mediaLibrary.FileKey.MEDIA_TYPE + '= ?',
+                selectionArgs: [imageType.toString()],
+              };
+              // 获取文件资源，使用callback方式返回异步结果
+              media.getFileAssets(imagesFetchOp, (error, fetchFileResult) => {
+                // 判断获取的文件资源的检索结果集是否为undefined，若为undefined则接口调用失败
+                if (fetchFileResult == undefined) {
+                  console.log('get fetchFileResult failed with error: ' + error);
+                  return;
+                }
+                // 获取文件检索结果集中的总数
+                const count = fetchFileResult.getCount();
+                // 判断结果集中的数量是否小于0，小于0时表示接口调用失败
+                if (count < 0) {
+                  console.log('get count from fetchFileResult failed, count: ' + count);
+                  return;
+                }
+                // 判断结果集中的数量是否等于0，等于0时表示接口调用成功，但是检索结果集为空，请检查文件获取选项参数配置是否有误和设备中是否存在相应文件
+                if (count == 0) {
+                  console.log('The count of fetchFileResult is zero');
+                  return;
+                }
+                console.log('Get fetchFileResult successfully, count: ' + count);
+                // 获取文件检索结果集中的第一个资源，使用callback方式返回异步结果
+                fetchFileResult.getFirstObject((error, fileAsset) => {
+                  // 检查获取的第一个资源是否为undefined，若为undefined则接口调用失败
+                  if (fileAsset == undefined) {
+                    console.log('get first object failed with error: ' + error);
+                    return;
+                  }
+                  console.log("fileAsset id=" + fileAsset.id + " fileAsset uri=" + fileAsset.uri + " fileAsset displayName=" + fileAsset.displayName)
+
+                  // 加载图库第一张图片的uri
+                  this.imageKnifeOption1 = {
+                    loadSrc: fileAsset.uri,
+                    placeholderSrc: $r('app.media.loading'),
+                    errorholderSrc: $r('app.media.failed')
+                  }
+                  // 释放FetchFileResult实例并使其失效。无法调用其他方法
+                  fetchFileResult.close();
+                });
+              });
+            }).margin({ top: 5, left: 3 })
+          ImageKnifeComponent({ imageKnifeOption: this.imageKnifeOption1 }).width(300).height(300)
+        }.width('100%').backgroundColor(Color.Pink)
+
+      }
+    }
+    .width('100%')
+    .height('100%')
+  }
+}

entry/src/main/resources/base/profile/main_pages.json

@@ -17,6 +17,7 @@
     "pages/TestWriteCacheStage",
     "pages/LoadStatePage",
     "pages/TestHspPreLoadImage",
-    "pages/TestRemoveCache"
+    "pages/TestRemoveCache",
+    "pages/dataShareUriLoadPage"
   ]
 }

library/src/main/ets/ImageKnifeDispatcher.ets

@@ -464,6 +464,22 @@ async function requestJob(request: RequestJobRequest, requestList?: List<ImageKn
           LogUtil.log("success get image from filecache for key = " + fileKey);
           loadError = "success get image from filecache for key = " + fileKey;
         }
+      } else if (request.src.startsWith('datashare://') || request.src.startsWith('file://')) {
+          await fs.open(request.src, fs.OpenMode.READ_ONLY).then(async (file) => {
+            await fs.stat(file.fd).then(async (stat) =>{
+              let buf = new ArrayBuffer(stat.size);
+              await fs.read(file.fd, buf).then((readLen) => {
+                resBuf = buf;
+                fs.close(file.fd);
+              }).catch((err:BusinessError) => {
+                loadError = 'LoadDataShareFileClient fs.read err happened uri=' + request.src + " err.msg=" + err?.message + " err.code=" + err?.code;
+              })
+            }).catch((err:BusinessError) => {
+              loadError = 'LoadDataShareFileClient fs.stat err happened uri=' + request.src + " err.msg=" + err?.message + " err.code=" + err?.code;
+            })
+          }).catch((err:BusinessError) => {
+            loadError ='LoadDataShareFileClient fs.open err happened uri=' + request.src + " err.msg=" + err?.message + " err.code=" + err?.code;
+          })
       } else { //从本地文件获取
         try {
           let stat = fs.statSync(request.src);