Home Web Front-end HTML Tutorial WeChat applet realizes page jump animation effect

WeChat applet realizes page jump animation effect

Nov 21, 2023 pm 03:10 PM
WeChat applet Animation effects Page jump

WeChat applet realizes page jump animation effect

WeChat applet implements page jump animation effect

In WeChat applet, page jump is a very common function. In order to improve the user experience, we can make page switching smoother and more vivid by adding animation effects. Below I will introduce how to use the WeChat applet API to achieve page jump animation effects, and attach specific code examples.

First of all, we need to understand the life cycle function of the page in the WeChat applet. When the page is about to be displayed, you can achieve the page jump animation effect by listening to the onShow life cycle function of the page. In the onShow function, we can use the WeChat applet API createAnimation to create an animation instance. Then, we can achieve different animation effects by calling different methods of the animation instance, such as translateY, opacity, etc.

The following is a sample code to achieve the effect of sliding into the page from the bottom:

Page({
  onShow: function() {
    const animation = wx.createAnimation({
      duration: 500,
      timingFunction: 'ease',
    })
    animation.translateY(300).opacity(0).step()
    this.setData({
      animation: animation.export()
    })
    setTimeout(() => {
      animation.translateY(0).opacity(1).step()
      this.setData({
        animation: animation.export()
      })
    }, 100)
  }
})
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In the above code, we first created an animation instanceanimation, The duration of the animation is set to 500 milliseconds, and the animation effect of ease is selected. We then set the initial animation state by calling the translateY and opacity methods: moving the page down 300 pixels and setting the transparency to 0. Next, we export the animation instance as an object describing the animation by calling the export method. Finally, we bind this object to the animation property of the page through the setData method.

In order to achieve the effect of sliding into the page, we set a timer setTimeout. After 100 milliseconds, we call translateY and opacity## again. #Method to set the final state of the animation: return the page to its original position and set the transparency to 1. Export the animation instance by calling the export method again, and bind it to the animation attribute of the page through the setData method, thereby achieving the effect of sliding into the page.

When other pages jump, we can add this code to the

onShow life cycle function of the target page to achieve the animation effect when the page jumps.

It should be noted that the above code is just a simple example. In actual development, more complex animation effects may need to be customized according to needs. You can refer to the animation API document of WeChat applet to achieve more diverse animation effects.

In summary, by using the API of the WeChat applet, we can easily achieve the page jump animation effect. By creating animation instances in the page's

onShow life cycle function and setting different animation states, you can achieve rich and diverse page jump animation effects, thereby improving the user experience.

The above is the detailed content of WeChat applet realizes page jump animation effect. For more information, please follow other related articles on the PHP Chinese website!

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