Use uniapp to implement gesture operation functions

Use uniapp to implement gesture operation functions

With the popularity of mobile devices and the continuous advancement of touch screen technology, gesture operation has become an important way for users to interact with applications. one. In uniapp, we can implement gesture operation functions by using HBuilderX for development. This article will introduce how to use uniapp to implement gesture operation functions and provide specific code examples.

1. Introducing the gesture library
   First, we need to introduce the gesture library into the uniapp project. The gesture library u-gesture has been built into uniapp and can be used directly. The code to introduce the gesture library into the page is as follows:

<template>
  <view class="container">
    <view class="content" @tap="onTap" @swiperight="onSwiperight">
      // 页面内容
    </view>
  </view>
</template>

<script>
  export default {
    methods: {
      onTap() {
        console.log('tap')
      },
      onSwiperight() {
        console.log('swiperight')
      },
    },
  }
</script>

In the above code, we use @tap and @swiperight to monitor tap and swiperight gesture events, and implement the corresponding in the corresponding method logic.

2. Use of various gesture events
   In addition to tap and swiperight, uniapp also provides some other commonly used gesture events. The following is an introduction and usage examples of some commonly used gesture events:

• @longtap: Long press gesture event is triggered after a long press on an element for a period of time. Usage example:

<view class="content" @longtap="onLongtap">
  // 页面内容
</view>

• @touchstart: Touch start event, triggered when a finger touches the screen. Usage example:

<view class="content" @touchstart="onTouchstart">
  // 页面内容
</view>

• @touchend: Touch end event, triggered when the finger leaves the screen. Usage example:

<view class="content" @touchend="onTouchend">
  // 页面内容
</view>

• @scroll: Scroll event, triggered when the element is scrolled. Usage example:

<view class="content" @scroll="onScroll">
  // 页面内容
</view>

• @pinch: Pinch gesture event, triggered when two fingers pinch or spread on the screen. Usage example:

<view class="content" @pinch="onPinch">
  // 页面内容
</view>

• @rotate: Rotate gesture event, triggered when two fingers rotate on the screen. Usage example:

<view class="content" @rotate="onRotate">
  // 页面内容
</view>

Through the above code examples, we can easily use various gesture events in uniapp.

Summary
This article introduces how to implement gesture operation functions in uniapp and provides specific code examples. By using uniapp's built-in gesture library, we can easily implement various gesture operations in mobile applications and improve user experience. I believe that after reading this article, readers will be able to master how to implement gesture operation functions in uniapp, and can flexibly apply it to their own projects.

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