這是我的代碼:
function setToTop(t) {
var n = 0;
$(".box").each(function(t, o) {
var e = Number.parseInt($(o).css("z-index"));
e = Number.isNaN(e) ? 0 : e, n = Math.max(n, e)
}), t.css({
zIndex: n 1
})
}
$(function() {
$(document).mouseleave(function() {
$(document).trigger("mouseup")
}), $(".box").draggable({
helper: "original",
containment: "body",
drag: function(t, n) {
n.offset.left < 0 && (n.position.left = n.position.left - n.offset.left)
},
stop: function(t, n) {},
start: function(t, n) {
setToTop(n.helper)
}
})
}), $(".box span").click(function() {
$(this).parents(".box").css("display", "none")
});
* {
margin: 0;
padding: 0;
}
html,
body {
width: 100%;
height: 100%;
font-size: 50px;
font-family: Arial;
background-color: rgb(220, 220, 220);
}
.box {
background-color: yellow;
color: black;
padding: 20px;
display: block;
position: absolute;
border: 2px black;
cursor: all-scroll;
border: 1px solid black;
}
.box:nth-child(1) {
left: 20%;
top: 10%;
}
.box:nth-child(2) {
left: 10%;
top: 15%;
}
.box:nth-child(3) {
left: 25%;
top: 30%;
}
.box:nth-child(4) {
left: 30%;
top: 20%;
}
.box span {
background-color: red;
color: white;
position: absolute;
top: -40px;
right: -40px;
padding: 10px;
cursor: pointer;
border: 1px solid black;
}
<div class="box">Hello <span>?</span></div>
<div class="box">Love <span>?</span></div>
<div class="box">Freedom <span>?</span></div>
<div class="box">Peace <span>?</span></div>
<script src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/ui/1.13.0/jquery-ui.min.js" integrity="sha256-hlKLmzaRlE8SCJC1Kw8zoUbU8BxA 8kR3gseuKfMjxA=" crossorigin="anonymous"></script>
<script src="https://raw.githubusercontent.com/furf/jquery-ui-touch-punch/master/jquery.ui.touch-punch.min.js"></script>
功能是:
- 有可拖動的框
- 當前拖動的框被設定在頂部
- 可以使用
?按鈕關閉一個盒子
不幸的是,該?按鈕不適用于許多觸摸設備。我的研究表明它在 Apple 設備上運行良好,但在許多 Android 設備上卻相當糟糕。
有沒有人想辦法解決這個問題?另外,有沒有人有優化代碼的想法?
將非常感謝您的幫助!<3
uj5u.com熱心網友回復:
考慮以下。
$(function() {
function setToTop(t) {
var n = $(".box").length;
$(".box").each(function(i, el) {
if (!isNaN($(el).css("z-index"))) {
n = parseInt($(el).css("z-index"));
}
});
t.css("z-index", n 1);
return true;
}
$(document).mouseleave(function() {
$(document).trigger("mouseup");
});
$(".box").draggable({
containment: "body",
cancel: ".btn",
start: function(event, ui) {
setToTop(ui.helper)
}
});
$(".box .btn").click(function() {
$(this).parents(".box").css("display", "none")
});
});
* {
margin: 0;
padding: 0;
}
html,
body {
width: 100%;
height: 100%;
font-size: 50px;
font-family: Arial;
background-color: rgb(220, 220, 220);
}
.box {
background-color: yellow;
color: black;
padding: 20px;
display: block;
position: absolute;
border: 2px black;
cursor: all-scroll;
border: 1px solid black;
}
.box:nth-child(1) {
left: 20%;
top: 10%;
}
.box:nth-child(2) {
left: 10%;
top: 15%;
}
.box:nth-child(3) {
left: 25%;
top: 30%;
}
.box:nth-child(4) {
left: 30%;
top: 20%;
}
.box span {
background-color: red;
color: white;
position: absolute;
top: -40px;
right: -40px;
padding: 10px;
cursor: pointer;
border: 1px solid black;
}
<div class="box">Hello <span class="btn">?</span></div>
<div class="box">Love <span class="btn">?</span></div>
<div class="box">Freedom <span class="btn">?</span></div>
<div class="box">Peace <span class="btn">?</span></div>
<script src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/ui/1.13.0/jquery-ui.min.js" integrity="sha256-hlKLmzaRlE8SCJC1Kw8zoUbU8BxA 8kR3gseuKfMjxA=" crossorigin="anonymous"></script>
<script src="https://raw.githubusercontent.com/furf/jquery-ui-touch-punch/master/jquery.ui.touch-punch.min.js"></script>
該cancel方法防止從指定元素開始拖動。
查看更多:https ://api.jqueryui.com/draggable/#option-cancel
在您的代碼中使用相同的變數名稱不是一個好習慣。
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