如何实现上下切换的页面间跳转动画

使用pageTransition函数实现页面转场效果。通过PageTransitionEnter和PageTransitionExit指定页面进入和退出的动画效果。将slide属性设置为SlideEffect.Bottom，页面入场时从下方滑入，出场时滑出到下方，从而实现上下切换效果。参考代码如下：

// Index.ets
@Entry
@Component
struct PageTransition1 {
pageInfos: NavPathStack = new NavPathStack();

build() {
Stack({ alignContent: Alignment.Bottom }) {
Navigation(this.pageInfos) {
Image($r('app.media.ic_banner01')).width('100%').height(200) // The image is stored in the media folder
}
}.height('100%').width('100%')
}

pageTransition() {
PageTransitionEnter({ duration: 500, curve: Curve.Linear }).slide(SlideEffect.Bottom)
PageTransitionExit({ duration: 500, curve: Curve.Ease }).slide(SlideEffect.Bottom)
}
}
// Page1.ets
@Entry
@Component
struct PageTransition2 {
pageInfos: NavPathStack = new NavPathStack();

build() {
Stack({ alignContent: Alignment.Bottom }) {
Navigation(this.pageInfos) {
Image($r('app.media.ic_banner02')).width('100%').height(200) // The image is stored in the media folder
}
}.height('100%').width('100%')
}

pageTransition() {
PageTransitionEnter({ duration: 500, curve: Curve.Linear }).slide(SlideEffect.Bottom)
PageTransitionExit({ duration: 500, curve: Curve.Ease }).slide(SlideEffect.Bottom)
}
}
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