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This article mainly explains "how to fix Mini Program navigation after scrolling to the head". The content in the article is simple and clear, and it is easy to learn and understand. let's study and learn how to fix Mini Program navigation after scrolling to the head.

The previous code is more important here.

{{navItem.text}} the overall layout of the front segment should use scroll-view

.positionfixed {position: fixed;left: 0 * top: 0;} data configuration information is promising

Data: {adData: ['http://pic.qiantucdn.com/58pic/17/70/72/02U58PICKVg_1024.jpg',' http://pic2.ooopic.com/12/09/64/46bOOOPICf5_1024.jpg'],navData: [{text: 'home'}, {text: 'health'}, {text: 'emotion'}, {text: 'workplace'}, {text: 'parenting'}, {text: 'dispute'} {text: 'green onions'}, {text: 'class'}, {text: 'class'}], currentNavTab: 0scrollTop:', / / the distance to slide navFixed: false, / / whether the navigation is fixed onLoad method to obtain width and height

Wx.getSystemInfo ({success: (res) = > {this.setData ({pixelRatio: res.pixelRatio,windowHeight: res.windowHeight,windowWidth: res.windowWidth})},}) js main event

/ / Navigation Click switchNav (event) {var cur = event.currentTarget.dataset.current;// the width of each tab option accounts for 1/5var singleNavWidth = this.data.windowWidth / 5 alternate tab tab option center this.setData ({navScrollLeft: (cur-2) * singleNavWidth}) if (this.data.currentNavTab = = cur) {return false } else {this.setData ({currentNavTab: cur})}}, / / listen for sliding layoutScroll: function (e) {this.data.scrollTop = this.data.scrollTop * 1 + e.detail.deltaY * 1 console.log (this.data.scrollTop) console.log (this.data.navFixed) if (this.data.scrollTop)

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