最近分別用vue和Android實(shí)現(xiàn)了一個(gè)券碼復(fù)制功能，長(zhǎng)按券碼會(huì)在上方彈出一個(gè)拷貝的icon提示，點(diǎn)擊icon將券碼內(nèi)容復(fù)制到剪貼板?，F(xiàn)將一些經(jīng)驗(yàn)代碼分享給大家以供參考。廢話不多說(shuō)，先上效果圖
vue實(shí)現(xiàn)：
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">券碼:/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;
// 對(duì)x,y的計(jì)算結(jié)果進(jìn)行微調(diào)
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 => {
// 釋放內(nèi)存
clipboard.off('error');
clipboard.off('success');
clipboard.destroy();
});
clipboard.on('error', e => {
// 釋放內(nèi)存
clipboard.off('error');
clipboard.off('success');
clipboard.destroy();
});
clipboard.onClick(e);
}
}
實(shí)現(xiàn)原理是將氣泡彈窗設(shè)置為絕對(duì)定位，根據(jù)券碼的位置來(lái)計(jì)算氣泡彈窗相對(duì)于父元素的位置，其中父元素為每一條item的包裹元素coupon-code-item
本次的實(shí)現(xiàn)難點(diǎn)是需要自己手動(dòng)定義vue的長(zhǎng)按點(diǎn)擊事件：
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();//獲取焦點(diǎn)
if(!propagation){
if (e.stopImmediatePropagation) {
e.stopImmediatePropagation();
} else {
e.propagationStopped = true;
}
e.stopPropagation();
return false;
}
}
},false);
}
})
Android實(shí)現(xiàn)：
Android原生實(shí)現(xiàn)起來(lái)比較簡(jiǎn)單，直接貼代碼
以上兩種實(shí)現(xiàn)方法全部完成，為了簡(jiǎn)單直接讓UI切了一張氣泡彈窗的顯示圖，如果感興趣也可以用代碼手動(dòng)繪制
總結(jié)
以上所述是小編給大家介紹的分別使用vue和Android實(shí)現(xiàn)長(zhǎng)按券碼復(fù)制功能,希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！
如果你覺(jué)得本文對(duì)你有幫助，歡迎轉(zhuǎn)載，煩請(qǐng)注明出處，謝謝！
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