分别使用vue和Android实现长按券码复制功能
最近分别用vue和Android实现了一个券码复制功能,长按券码会在上方弹出一个拷贝的icon提示,点击icon将券码内容复制到剪贴板。现将一些经验代码分享给大家以供参考。废话不多说,先上效果图
vue实现:
npm install clipboard --save
<div class="coupon-count-container" @click="closePopBubble"> <ul> <li v-for="(couponItem, index) in couponArray" :key="index"> <div class="coupon-code-item"> <img class="pop-bubble-copy" :style="{left: x + 'px', top: y + 'px', visibility: showPopBubble && index === clickedIndex ? 'visible' : 'hidden'}" src="../../assets/couponPayResult/copy_icon.png" @click="copyToClipboard($event, couponArray[clickedIndex].codeNo)"> <span class="code-label">券码:</span><span class="code-active" v-tap="{longMethod: getPopBubble, params: index}">{{couponItem.codeNo}}</span> </div> </li> </ul> </div>
data: function() { return { couponArray: [], showPopBubble: false, x: 0, y: 0, clickedIndex: 0 } } .coupon-code-item { position: relative; padding: 10px 0; font-size: 13px; } .pop-bubble-copy { position: absolute; width: 73px; height: 39px; } .code-label { margin-left: 28px; margin-right: 26px; color: #989898; } .code-active { color: $color-ff5532; } methods: { closePopBubble() { if (this.showPopBubble) { this.showPopBubble = false; } }, getPopBubble(e, index) { this.showPopBubble = true; this.clickedIndex = index; // 对x,y的计算结果进行微调 this.x = e.target.offsetLeft + 30; this.y = e.target.offsetTop - 40; }, copyToClipboard(e, text) { this.showPopBubble = false; var clipboard = new Clipboard(e.target, {text: () => text.replace(/\s/g, "")}); clipboard.on('success', e => { // 释放内存 clipboard.off('error'); clipboard.off('success'); clipboard.destroy(); }); clipboard.on('error', e => { // 释放内存 clipboard.off('error'); clipboard.off('success'); clipboard.destroy(); }); clipboard.onClick(e); } }
实现原理是将气泡弹窗设置为绝对定位,根据券码的位置来计算气泡弹窗相对于父元素的位置,其中父元素为每一条item的包裹元素coupon-code-item
本次的实现难点是需要自己手动定义vue的长按点击事件:
Vue.directive('tap',{ bind:function(el,binding){ var startTx, startTy,endTx,endTy,longClick,timeOutEvent, longMethod=binding.value.longMethod, method = binding.value.method, params = binding.value.params, propagation=binding.value.propagation; el.addEventListener("touchstart",function(e){ var touch=e.touches[0]; startTx = touch.clientX; startTy = touch.clientY; if(longMethod && typeof longMethod==='function'){ longClick=0; timeOutEvent =setTimeout(function(){ longClick=1; longMethod(e, params); },500) } if(!propagation){ if (e.stopImmediatePropagation) { e.stopImmediatePropagation(); } else { e.propagationStopped = true; } } },false ); el.addEventListener("touchmove",function(e){ if(longMethod && timeOutEvent){ clearTimeout(timeOutEvent); timeOutEvent = 0; } },false); el.addEventListener("touchend",function(e){ var touch = e.changedTouches[0]; endTx = touch.clientX; endTy = touch.clientY; if(longMethod && timeOutEvent){ clearTimeout(timeOutEvent); } if((timeOutEvent!=0 && longClick==0)||!longMethod){ if( Math.abs(startTx - endTx) < 6 && Math.abs(startTy - endTy) < 6){ if(params instanceof Array){ method(...params); } else method(params); } var focusInput=document.querySelector('input:focus'); if(focusInput)focusInput.blur(); var tagName=el.tagName.toLowerCase(); if(tagName==='input'||tagName==='textarea')el.focus();//获取焦点 if(!propagation){ if (e.stopImmediatePropagation) { e.stopImmediatePropagation(); } else { e.propagationStopped = true; } e.stopPropagation(); return false; } } },false); } })
Android实现:
Android原生实现起来比较简单,直接贴代码
以上两种实现方法全部完成,为了简单直接让UI切了一张气泡弹窗的显示图,如果感兴趣也可以用代码手动绘制
总结
以上所述是小编给大家介绍的分别使用vue和Android实现长按券码复制功能,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对我们网站的支持!
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