Bootstrap 4 - Grupo de botões
Descrição
Os grupos de botões permitem que vários botões sejam empilhados em uma única linha.
Grupo de botões básicos
Você pode criar o grupo de botões básicos usando a classe .btn-group dentro do elemento <div>, conforme mostrado no exemplo abaixo -
Exemplo
<html lang = "en">
<head>
<!-- Meta tags -->
<meta charset = "utf-8">
<meta name = "viewport" content = "width = device-width, initial-scale = 1, shrink-to-fit = no">
<!-- Bootstrap CSS -->
<link rel = "stylesheet"
href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Button Group</h2>
<div class = "btn-group">
<button type = "button" class = "btn btn-info">Cricket</button>
<button type = "button" class = "btn btn-info">Football</button>
<button type = "button" class = "btn btn-info">Hockey</button>
</div>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Isso produzirá o seguinte resultado -
Resultado
Barra de ferramentas de botões
Você pode agrupar conjuntos de grupos de botões em uma única barra de ferramentas usando a classe .btn-toolbar conforme mostrado no exemplo abaixo -
Exemplo
<html lang = "en">
<head>
<!-- Meta tags -->
<meta charset = "utf-8">
<meta name = "viewport" content = "width = device-width, initial-scale = 1, shrink-to-fit = no">
<!-- Bootstrap CSS -->
<link rel = "stylesheet"
href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Button Toolbar</h2>
<div class = "btn-toolbar" role = "toolbar" aria-label = "Toolbar with button groups">
<div class = "btn-group mr-2" role = "group" aria-label = "First group">
<button type = "button" class =" btn btn-info">Cricket</button>
<button type = "button" class = "btn btn-info">Football</button>
<button type = "button" class = "btn btn-info">Hockey</button>
<button type = "button" class = "btn btn-info">Tennis</button>
</div>
<div class = "btn-group mr-2" role = "group" aria-label = "Second group">
<button type = "button" class = "btn btn-info">Basketball</button>
<button type = "button" class = "btn btn-info">Volleyball</button>
<button type = "button" class = "btn btn-info">Boxing</button>
</div>
<div class = "btn-group mr-2" role = "group" aria-label = "Third group">
<button type = "button" class = "btn btn-info">Archery</button>
<button type = "button" class = "btn btn-info">Badminton</button>
</div>
</div>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Isso produzirá o seguinte resultado -
Resultado
Tamanhos de grupos de botões
Você pode controlar o tamanho do grupo de botões adicionando a classe .btn-group-sm ou .btn-group-lg à classe .button-group conforme mostrado no exemplo abaixo -
Exemplo
<html lang = "en">
<head>
<!-- Meta tags -->
<meta charset = "utf-8">
<meta name = "viewport" content = "width = device-width, initial-scale = 1, shrink-to-fit = no">
<!-- Bootstrap CSS -->
<link rel = "stylesheet"
href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Button Group Sizes</h2>
<div class = "btn-group btn-group-lg" role = "group">
<button type = "button" class = "btn btn-info">Cricket</button>
<button type = "button" class = "btn btn-info">Football</button>
<button type = "button" class = "btn btn-info">Hockey</button>
</div>
<br>
<br>
<div class = "btn-group" role = "group">
<button type = "button" class = "btn btn-info">Cricket</button>
<button type = "button" class = "btn btn-info">Football</button>
<button type = "button" class = "btn btn-info">Hockey</button>
</div>
<br>
<br>
<div class = "btn-group btn-group-sm" role = "group">
<button type = "button" class = "btn btn-info">Cricket</button>
<button type = "button" class = "btn btn-info">Football</button>
<button type = "button" class = "btn btn-info">Hockey</button>
</div>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Isso produzirá o seguinte resultado -
Resultado
Grupo de Botão Vertical
Você pode exibir o grupo de botões verticalmente usando a classe .btn-group-vertical conforme mostrado no exemplo abaixo -
Exemplo
<html lang = "en">
<head>
<!-- Meta tags -->
<meta charset = "utf-8">
<meta name = "viewport" content = "width = device-width, initial-scale = 1, shrink-to-fit = no">
<!-- Bootstrap CSS -->
<link rel = "stylesheet"
href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Vertical Button Group</h2>
<div class = "btn-group-vertical" role = "group">
<button type = "button" class = "btn btn-info">Cricket</button>
<button type = "button" class = "btn btn-info">Football</button>
<button type = "button" class = "btn btn-info">Hockey</button>
</div>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Isso produzirá o seguinte resultado -
Resultado
Grupo de botões de aninhamento
Você pode colocar um .btn-group dentro de outro .btn-group , quando quiser exibir o menu suspenso dentro de uma série de botões.
O exemplo a seguir demonstra o aninhamento de grupos de botões -
Exemplo
<html lang = "en">
<head>
<!-- Meta tags -->
<meta charset = "utf-8">
<meta name = "viewport" content = "width = device-width, initial-scale = 1, shrink-to-fit = no">
<!-- Bootstrap CSS -->
<link rel = "stylesheet"
href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin = "anonymous">
<title>Bootstrap 4 Example</title>
</head>
<body>
<div class = "container">
<h2>Nesting Button Group</h2>
<div class = "btn-group" role = "group">
<button type = "button" class = "btn btn-info">Cricket</button>
<button type = "button" class = "btn btn-info">Football</button>
<button type = "button" class = "btn btn-info">Hockey</button>
<div class = "btn-group" role = "group">
<button id = "nestingbtngroup" type = "button" class = "btn btn-info
dropdown-toggle" data-toggle = "dropdown" aria-haspopup = "true"
aria-expanded = "false">
Sports
</button>
<div class = "dropdown-menu" aria-labelledby = "nestingbtngroup">
<a class = "dropdown-item" href = "#">Cricket</a>
<a class = "dropdown-item" href = "#">Football</a>
<a class = "dropdown-item" href = "#">Hockey</a>
</div>
</div>
</div>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin = "anonymous">
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin = "anonymous">
</script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin = "anonymous">
</script>
</body>
</html>Isso produzirá o seguinte resultado -