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脚本之家网站的支持!
如果你觉得本文对你有帮助,欢迎转载,烦请注明出处,谢谢!
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