开发过程中有时候会有些需求,常规的方法并不能解决问题。此文介绍下一些解决方案
小程序
获取头部高度
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| wx.getSystemInfo({ success: e => { let pixelRatio = 750 / e.windowWidth; this.globalData.pixelRatio = pixelRatio; this.globalData.statusBar = e.statusBarHeight; this.globalData.headerHeight = 44; this.globalData.customBar = e.statusBarHeight+this.globalData.headerHeight; } })
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移动端
判断浏览器环境
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| const ua = navigator.userAgent;
if(ua.toLowerCase().indexOf('micromessenger') > -1){ console.log('微信浏览器') }
if(ua.indexOf("Android") > -1 || ua.indexOf("Adr") > -1){ console.log('安卓环境') }else{ console.log('苹果环境') }
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其他
富文本解决方案
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formatRichText(html) { let newContent = html.replace(/<img[^>]*>/gi, function (match, capture) { match = match.replace(/style="[^"]+"/gi, ''); match = match.replace(/width="[^"]+"/gi, ''); match = match.replace(/height="[^"]+"/gi, ''); return match; }) newContent = newContent.replace(/style="[^"]+"/gi, function (match, capture) { match = match.replace(/width:[^;]+;/gi, 'max-width:100%;').replace(/width:[^;]+;/gi, 'max-width:100%;'); return match; }) newContent = newContent.replace(/<br[^>]*\/>/gi, '') newContent = newContent.replace(/\<img/gi, '<img style="max-width:100%;height:auto;display:block;margin-top:0;margin-bottom:0;"'); return newContent; }
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