!73 解决变换存在的已知问题

Merge pull request !73 from zhoulisheng2/master
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openharmony_ci 2023-12-01 08:40:39 +00:00 committed by Gitee
commit 89fcb3a5d3
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4 changed files with 86 additions and 109 deletions

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@ -207,35 +207,11 @@ struct IndexFunctionDemo {
}.width('100%').height(60).backgroundColor(Color.Pink)
Flex({ direction: FlexDirection.Row, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Button("大量照片和重复数据")
.onClick(() => {
console.log("pages/manyPhotoShowPage 页面跳转")
router.pushUrl({ url: "pages/manyPhotoShowPage" });
}).margin({ top: 15 })
Button("图片加载暂停和恢复")
.onClick(() => {
console.log("pages/manyPhotoShowPage 页面跳转")
router.pushUrl({ url: "pages/photosPausedResumedPage" });
}).margin({ top: 15 })
Button("部分url测试")
.onClick(() => {
console.log("pages/tempUrlTestPage 页面跳转")
router.pushUrl({ url: "pages/tempUrlTestPage" });
}).margin({ top: 15 })
Button("测试drawFactory")
.onClick(() => {
console.log("pages/drawFactoryTestPage 页面跳转")
router.pushUrl({ url: "pages/drawFactoryTestPage" });
}).margin({ top: 15 })
}.width('100%').height(60).backgroundColor(Color.Pink) }.width('100%').height(60).backgroundColor(Color.Pink)
Flex({ direction: FlexDirection.Row, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) { Flex({ direction: FlexDirection.Row, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Button("大量照片和重复数据") Button("大量照片")
.onClick(() => { .onClick(() => {
console.log("pages/manyPhotoShowPage 页面跳转") console.log("pages/manyPhotoShowPage 页面跳转")
router.pushUrl({ url: "pages/manyPhotoShowPage" }); router.pushUrl({ url: "pages/manyPhotoShowPage" });
@ -254,12 +230,12 @@ struct IndexFunctionDemo {
}.width('100%').height(60).backgroundColor(Color.Pink) }.width('100%').height(60).backgroundColor(Color.Pink)
Flex({ direction: FlexDirection.Row, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) { Flex({ direction: FlexDirection.Row, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Button("图片加载暂停和恢复") Button("图片暂停和恢复")
.onClick(() => { .onClick(() => {
console.log("pages/photosPausedResumedPage 页面跳转") console.log("pages/photosPausedResumedPage 页面跳转")
router.pushUrl({ url: "pages/photosPausedResumedPage" }); router.pushUrl({ url: "pages/photosPausedResumedPage" });
}).margin({ top: 15 }) }).margin({ top: 15 })
Button("List滑动时暂停图片加载,滑动结束恢复图片加载") Button("List滑动暂停和恢复")
.onClick(() => { .onClick(() => {
console.log("pages/photosPausedResumedPage2 页面跳转") console.log("pages/photosPausedResumedPage2 页面跳转")
router.pushUrl({ url: "pages/photosPausedResumedPage2" }); router.pushUrl({ url: "pages/photosPausedResumedPage2" });

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@ -16,6 +16,8 @@ import {AsyncTransform} from '../transform/AsyncTransform'
import image from '@ohos.multimedia.image' import image from '@ohos.multimedia.image'
import { Size } from '../../imageknife/RequestOption' import { Size } from '../../imageknife/RequestOption'
import { BusinessError } from '@ohos.base' import { BusinessError } from '@ohos.base'
import { Constants } from '../constants/Constants'
export class TransformUtils { export class TransformUtils {
static centerCrop(buf: ArrayBuffer, outWidth: number, outHeihgt: number, static centerCrop(buf: ArrayBuffer, outWidth: number, outHeihgt: number,
callback?: AsyncTransform<Promise<PixelMap>>) { callback?: AsyncTransform<Promise<PixelMap>>) {
@ -69,16 +71,21 @@ export class TransformUtils {
} }
static centerInside(buf: ArrayBuffer, outWidth: number, outHeihgt: number, static centerInside(buf: ArrayBuffer, outWidth: number, outHeihgt: number,
callback?: AsyncTransform<Promise<PixelMap>>) { callback?: AsyncTransform<PixelMap>) {
let imageSource: image.ImageSource = image.createImageSource(buf); let imageSource: image.ImageSource = image.createImageSource(buf);
imageSource.getImageInfo() imageSource.getImageInfo()
.then((p: image.ImageInfo) => { .then((p: image.ImageInfo) => {
let pw = p.size.width; let pw = p.size.width;
let ph = p.size.height; let ph = p.size.height;
if (pw <= outWidth && ph <= outHeihgt) { if (pw <= outWidth && ph <= outHeihgt) {
let promise:Promise<PixelMap> = imageSource.createPixelMap() imageSource.createPixelMap()
.then(p => {
callback?.asyncTransform('', p);
imageSource.release() imageSource.release()
callback?.asyncTransform('', promise); }).catch((e: BusinessError) => {
callback?.asyncTransform(Constants.PROJECT_TAG + ';CenterInside error:' + e, null);
imageSource.release()
})
} else { } else {
TransformUtils.fitCenter(buf, outWidth, outHeihgt, callback); TransformUtils.fitCenter(buf, outWidth, outHeihgt, callback);
} }
@ -90,7 +97,7 @@ export class TransformUtils {
} }
static fitCenter(buf: ArrayBuffer, outWidth: number, outHeihgt: number static fitCenter(buf: ArrayBuffer, outWidth: number, outHeihgt: number
, callback?: AsyncTransform<Promise<PixelMap>>) { , callback?: AsyncTransform<PixelMap>) {
let imageSource: image.ImageSource = image.createImageSource(buf); let imageSource: image.ImageSource = image.createImageSource(buf);
imageSource.getImageInfo() imageSource.getImageInfo()
.then((p: image.ImageInfo) => { .then((p: image.ImageInfo) => {
@ -115,10 +122,16 @@ export class TransformUtils {
rotate: 0, rotate: 0,
desiredSize: { width: targetWidth, height: targetHeight } desiredSize: { width: targetWidth, height: targetHeight }
} }
if (callback) { if (callback != undefined) {
let promise:Promise<PixelMap> = imageSource.createPixelMap(options); imageSource.createPixelMap(options)
.then(p => {
callback?.asyncTransform('', p);
imageSource.release(); imageSource.release();
callback.asyncTransform('', promise); })
.catch((e: BusinessError) => {
callback?.asyncTransform(Constants.PROJECT_TAG + ';FitCenter error:' + e, null);
imageSource.release();
})
} }
}) })
.catch((e: BusinessError) => { .catch((e: BusinessError) => {

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@ -31,12 +31,6 @@ export class CenterInside implements BaseTransform<PixelMap> {
} }
return; return;
} }
TransformUtils.centerInside(buf, request.size.width, request.size.height, {asyncTransform:(error:BusinessError|string, data:Promise<PixelMap>|null) => { TransformUtils.centerInside(buf, request.size.width, request.size.height, func)
data?.then(p => {
func?.asyncTransform('', p);
}).catch((e:BusinessError) => {
func?.asyncTransform(Constants.PROJECT_TAG + ';CenterInside error:' + e, null);
})
}})
} }
} }

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@ -31,12 +31,6 @@ export class FitCenter implements BaseTransform<PixelMap> {
} }
return; return;
} }
TransformUtils.fitCenter(buf, request.size.width, request.size.height, {asyncTransform:(error:BusinessError|string, data:Promise<PixelMap>|null) => { TransformUtils.fitCenter(buf, request.size.width, request.size.height, func)
data?.then(p => {
func?.asyncTransform('', p);
}).catch((e:BusinessError) => {
func?.asyncTransform(Constants.PROJECT_TAG + ';FitCenter error:' + e, null);
})
}})
} }
} }