# Page Transition
The page transition navigates users between pages. You can customize page transitions by configuring the page entrance and exit components in the global **pageTransition** API.
> **NOTE**
>
> This event is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.
| Name | Parameter | Description |
| ------------------- | ------ | ------------------------------- |
| PageTransitionEnter | Object | Page entrance component, which is used to customize the entrance effect of the current page. For details, see animation parameters.|
| PageTransitionExit | Object | Page exit component, which is used to customize the exit effect of the current page. For details, see animation parameters.|
- Animation parameters
| Name | Type | Default Value | Mandatory | Description |
| -------- | ------------------------- | ------ | ---- | ---------------------------------------- |
| type | RouteType | - | No | Animation type. If this parameter is not set, the reverse playback effect as **pop** switches to **push** is used. |
| duration | number | 1000 | No | Animation duration, in ms. |
| curve | Curve \| Curves | Linear | No | Animation curve. For details about the valid values, see [Curve](ts-animatorproperty.md).|
| delay | number | 0 | No | Animation delay, in ms. Delayed animation is disabled by default. |
- RouteType enums
| Name| Description |
| ---- | ---------------- |
| Pop | Redirects to a specified page. When the user is redirected from page A to page B, page A is Exit+Push, and page B is Enter+Push.|
| Push | Redirects to the next page. When the user is redirected back from page B to page A, page A is Enter+Pop, and page B is Exit+Pop.|
## Attributes
The **PageTransitionEnter** and **PageTransitionExit** parameters support the following attributes:
| Name | Type | Default Value | Mandatory | Description |
| --------- | ---------------------------------------- | ----------------- | ---- | ---------------------------------------- |
| slide | SlideEffect | SlideEffect.Right | No | Slide effect during page transition. For details about the valid values, see **SlideEffect** enums. |
| translate | {
x? : number \| string,
y? : number \| string,
z? : number \| string
} | - | No | Translation effect during page transition, which is the value of the start point of entrance and the end point of exit. When this parameter is set together with **slide**, the latter takes effect by default.|
| scale | {
x? : number,
y? : number,
z? : number,
centerX? : number \| string,
centerY? : number \| string
} | - | No | Scaling effect during page transition, which is the value of the start point of entrance and the end point of exit. |
| opacity | number | 1 | No | Opacity, which is the opacity value of the start point of entrance or the end point of exit. |
- SlideEffect enums
| Name | Description |
| ------ | ------------------------- |
| Left | When set to Enter, slides in from the left. When set to Exit, slides out to the left.|
| Right | When set to Enter, slides in from the right. When set to Exit, slides out to the right.|
| Top | When set to Enter, slides in from the top. When set to Exit, slides out to the top.|
| Bottom | When set to Enter, slides in from the bottom. When set to Exit, slides out to the bottom.|
## Events
The **PageTransitionEnter** and **PageTransitionExit** parameters support the following events:
| Name | Description |
| ---------------------------------------- | ----------------------------------- |
| onEnter(type: RouteType, progress: number) => void | The callback input parameter is the normalized progress of the current entrance animation. The value range is 0–1.|
| onExit(type: RouteType, progress: number) => void | The callback input parameter is the normalized progress of the current exit animation. The value range is 0–1.|
## Example
Customization method 1: The entrance animation of the current page is configured as fade-in, and the exit animation is configured as zoom-out.
```ts
// index.ets
@Entry
@Component
struct PageTransitionExample1 {
@State scale1: number = 1
@State opacity1: number = 1
build() {
Column() {
Navigator({ target: 'pages/page1', type: NavigationType.Push }) {
Image($r('app.media.bg1')).width("100%").height("100%")
}
}.scale({ x: this.scale1 }).opacity(this.opacity1)
}
// Customization method 1: Customize the transition process.
pageTransition() {
PageTransitionEnter({ duration: 1200, curve: Curve.Linear })
.onEnter((type: RouteType, progress: number) => {
this.scale1 = 1
this.opacity1 = progress
}) // The onEnter callback is triggered frame by frame during the entrance process. The input parameter is the normalized progress of the animation (0% to 100%).
PageTransitionExit({ duration: 1500, curve: Curve.Ease })
.onExit((type: RouteType, progress: number) => {
this.scale1 = 1 - progress
this.opacity1 = 1
}) // The onExit callback is triggered frame by frame during the exit process. The input parameter is the normalized progress of the animation (0% to 100%).
}
}
```
```ts
// page1.ets
@Entry
@Component
struct AExample {
@State scale2: number = 1
@State opacity2: number = 1
build() {
Column() {
Navigator({ target: 'pages/index' ,type: NavigationType.Push}) {
Image($r('app.media.bg2')).width("100%").height("100%")
}
}.height("100%").width("100%").scale({ x: this.scale2 }).opacity(this.opacity2)
}
// Customization method 1: Customize the transition process.
pageTransition() {
PageTransitionEnter({ duration: 1200, curve: Curve.Linear })
.onEnter((type: RouteType, progress: number) => {
this.scale2 = 1
this.opacity2 = progress
}) // The onEnter callback is triggered frame by frame during the entrance process. The input parameter is the normalized progress of the animation (0% to 100%).
PageTransitionExit({ duration: 1500, curve: Curve.Ease })
.onExit((type: RouteType, progress: number) => {
this.scale2 = 1 - progress
this.opacity2 = 1
}) // The onExit callback is triggered frame by frame during the exit process. The input parameter is the normalized progress of the animation (0% to 100%).
}
}
```
Customization method 2: The entrance animation of the current page is configured to slide in from the left, and the exit animation is configured to zoom out with opacity change.
```ts
// index.ets
@Entry
@Component
struct PageTransitionExample {
@State scale1: number = 1
@State opacity1: number = 1
build() {
Column() {
Navigator({ target: 'pages/page1', type: NavigationType.Push }) {
Image($r('app.media.bg1')).width("100%").height("100%")
}
}.scale({ x: this.scale1 }).opacity(this.opacity1)
}
// Customization method 2: Use the default effects provided by the system, such as translation, scaling, and opacity.
pageTransition() {
PageTransitionEnter({ duration: 1200 })
.slide(SlideEffect.Left)
PageTransitionExit({ delay: 100 })
.translate({ x: 100.0, y: 100.0 })
.opacity(0)
}
}
```
```ts
// page1.ets
@Entry
@Component
struct PageTransitionExample1 {
@State scale2: number = 1
@State opacity2: number = 1
build() {
Column() {
Navigator({ target: 'pages/index', type: NavigationType.Push }) {
Image($r('app.media.bg2')).width ("100%").height("100%")
}
}.scale({ x: this.scale2 }).opacity(this.opacity2)
}
// Customization method 2: Use the default effects provided by the system, such as translation, scaling, and opacity.
pageTransition() {
PageTransitionEnter({ duration: 1200 })
.slide(SlideEffect.Left)
PageTransitionExit({ delay: 100 })
.translate({ x: 100.0, y: 100.0 })
.opacity(0)
}
}
```
