CSS
.carousel-control-prev-icon, .carousel-control-next-icon {
height: 100px;
width: 100px;
outline: black;
background-color: rgba(0, 0, 0, 0.3);
background-size: 100%, 100%;
border-radius: 50%;
border: 1px solid black;
}
轮播HTML
<div class = 'col-md-9'>
<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
</ol>
<div class="carousel-inner" role="listbox">
<div class="carousel-item active">
<img class="d-block img-fluid" src="carousel/Bars%20and%20Dots.jpg" alt="First slide" class = 'img-responsive'>
</div>
<div class="carousel-item">
<img class="d-block img-fluid" src="carousel/murial.jpg" alt="Second slide" class = 'img-responsive'>
</div>
<div class="carousel-item">
<img class="d-block img-fluid" src="carousel/Upper%20Partialism%20album%20covers004white.jpg" alt="Third slide" class = 'img-responsive'>
</div>
</div>
<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
答案 0 :(得分:64)
我知道这是一篇较老的帖子,但它帮助了我。我还发现,对于bootstrap v4,您还可以通过覆盖这样的控件来更改箭头颜色:
.carousel-control-prev-icon {
background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E") !important;
}
.carousel-control-next-icon {
background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E") !important;
}
将最后的fill='%23fff'
fff更改为您想要的任何十六进制值。例如:
fill='%23000'
表示黑色,fill='%23ff0000'
表示红色,依此类推。只是一个注释,我没有在没有!important声明的情况下测试过。
答案 1 :(得分:27)
我希望这有效,欢呼。
{
"success": true,
"message": "got the locations!",
"data": {
"LocationList": [
{
"LocID": 1,
"LocName": "Downtown"
},
{
"LocID": 2,
"LocName": "Uptown"
},
{
"LocID": 3,
"LocName": "Midtown"
}
]
}
}
struct Location: Codable {
var data: [LocationList]
}
struct LocationList: Codable {
var LocID: Int!
var LocName: String!
}
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let url = URL(string: "/getlocationlist")
let task = URLSession.shared.dataTask(with: url!) { data, response, error in
guard error == nil else {
print(error!)
return
}
guard let data = data else {
print("Data is empty")
return
}
do {
let locList = try JSONDecoder().decode(Location.self, from: data)
print(locList)
} catch let error {
print(error)
}
}
task.resume()
}
&#13;
答案 2 :(得分:18)
如果您只想在Bootstrap 4中将其设为黑色。
.carousel-control-next {
filter: invert(100%);
}
答案 3 :(得分:4)
您还应该使用:<span><i class="fa fa-angle-left" aria-hidden="true"></i></span>
使用fontawesome。您必须覆盖原始代码。执行以下操作,您可以自由定制CSS:
<a class="carousel-control-prev" href="#carouselExampleIndicatorsTestim" role="button" data-slide="prev">
<span><i class="fa fa-angle-left" aria-hidden="true"></i></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicatorsTestim" role="button" data-slide="next">
<span><i class="fa fa-angle-right" aria-hidden="true"></i></span>
<span class="sr-only">Next</span>
</a>
原始代码
<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
答案 4 :(得分:3)
当前,Bootstrap 4使用带有嵌入的SVG数据信息的背景图像,其中包括SVG形状的颜色。像这样:
.carousel-control-prev-icon { background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"); }
请注意,fill='%23fff'
周围的部分用颜色填充了颜色,在这种情况下为#fff(白色),对于红色,只需替换为#f00
最后,可以安全地添加此内容(对下一个图标进行相同的更改):
.carousel-control-prev-icon {background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23f00' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"); }
答案 5 :(得分:3)
这对我有用:
.carousel-control-prev-icon {
background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%23000' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath d='M5.25 0l-4 4 4 4 1.5-1.5L4.25 4l2.5-2.5L5.25 0z'/%3e%3c/svg%3e");
}
.carousel-control-next-icon {
background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%23000' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath d='M2.75 0l-1.5 1.5L3.75 4l-2.5 2.5L2.75 8l4-4-4-4z'/%3e%3c/svg%3e");
}
我更改了图标网址中的颜色。多数民众赞成在引导页面中使用的原始内容,但此部分为黑色:
“ ... fill ='%23000'...”
答案 6 :(得分:2)
for bootstrap-3可以使用:
.carousel-control span.glyphicon {
color: red;
}
答案 7 :(得分:2)
在引导程序4中,如果您只是更改控件的颜色,则可以使用sass变量,通常在custom.scss中:
$ carousel-control-color:#7b277d;
如本github问题说明中所述:https://github.com/twbs/bootstrap/issues/21985#issuecomment-281402443
答案 8 :(得分:1)
如果您使用bootstrap.min.css作为轮播 -
<a class="left carousel-control" href="#carouselExample" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#carouselExample" data-slide="next">
<span class="glyphicon glyphicon-chevron-right"></span>
<span class="sr-only">Next</span>
</a>
打开bootstrap.min.css文件,找到属性&#34; glyphicon-chevron-right&#34;并添加属性&#34; color:red&#34;
答案 9 :(得分:1)
一个对我有用的小例子
.carousel-control-prev,
.carousel-control-next{
height: 50px;
width: 50px;
outline: $color-white;
background-size: 100%, 100%;
border-radius: 50%;
border: 1px solid $color-white;
background-color: $color-white;
}
.carousel-control-prev-icon {
background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23009be1' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E");
width: 30px;
height: 48px;
}
.carousel-control-next-icon {
background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23009be1' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E");
width: 30px;
height: 48px;
}
答案 10 :(得分:0)
要使用Sass自定义轮播控件,标题和指示器的颜色,您可以包含以下变量
$carousel-control-color:
$carousel-caption-color:
$carousel-indicator-active-bg:
答案 11 :(得分:0)
要更改颜色,您应该将样式添加到 css 文件中,并对用作类背景图像的 svg 代码中的填充属性进行一些更改 .carousel-control-prev-icon 和 .carousel-control-next-icon
fill='%23fff' 仅将 fff 更改为您需要的颜色,例如 f00 表示红色。 (也可以使用 6 个字母的十六进制 --> %23ff0000)
.carousel-control-pre-icon {background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'fill='% 23fff' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath d='M5.25 0l-4 4 4 4 1.5-1.5L4.25 4l2.5-2.5L5.25 0z'/%3e%3c/svg%3e");}
青少年: .carousel-container .carousel .carousel-control-next .carousel-control-next-icon
答案 12 :(得分:-1)
带有“真棒字体”图标:
<!-- Controls -->
<a class="carousel-control-prev" href="#carousel-example-generic" role="button" data-slide="prev">
<span class="fa fa-chevron-left fa-lg" style="color:red;"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carousel-example-generic" role="button" data-slide="next">
<span class="fa fa-chevron-right fa-lg" style="color:red;"></span>
<span class="sr-only">Next</span>
</a>
答案 13 :(得分:-1)
我也遇到类似的问题,有些图像很亮,有些图像很暗,所以箭头并不总是清晰地显示出来,所以我采用了一种更为简单的方法。
在模态主体部分中,我删除了以下几行:
<!-- Left and right controls -->
<a class="carousel-control-prev" href="#id" data-slide="prev">
<span class="carousel-control-prev-icon"></span>
</a>
<a class="carousel-control-next" href="#id" data-slide="next">
<span class="carousel-control-next-icon"></span>
</a>
并将以下内容插入模式标题部分
<!-- Left and right controls -->
<a href="#gamespandp" data-slide="prev" class="btn btn-outline-secondary btn-sm">❮</a>
<a href="#gamespandp" data-slide="next" class="btn btn-outline-secondary btn-sm">❯</a>
现在可以清楚地看到指示器,无需添加额外的图标或弄乱样式表,尽管您可以根据需要对它们进行样式设置!
查看此演示图像:
[