如何為動態生成的選項卡提供左右滾動按鈕

Question

我根據我的要求生成了選項卡，但是當選項卡越來越多時，它們將進入下一行。它們看起來很奇怪，我想使用向右和向左滾動選項。 下一個和上一個功能應該起作用。 但是我也不是沒有辦法包含此功能，因為我是腳本的新手，任何人都可以幫助我。如果生成的標簽更多，則它們已經生成了標簽。 在此功能中，所有都是靜態選項卡，如何使它們在變得更多時適當出現。

 function openCity(evt, cityName) { var i, tabcontent, tablinks; tabcontent = document.getElementsByClassName("tabcontent"); for (i = 0; i < tabcontent.length; i++) { tabcontent[i].style.display = "none"; } tablinks = document.getElementsByClassName("tablinks"); for (i = 0; i < tablinks.length; i++) { tablinks[i].className = tablinks[i].className.replace(" active", ""); } document.getElementById(cityName).style.display = "block"; evt.currentTarget.className += " active"; return false; } 

 body {font-family: Arial;} /* Style the tab */ .tab { overflow: hidden; border: 1px solid #ccc; background-color: #f1f1f1; } /* Style the buttons inside the tab */ .tab button { background-color: inherit; float: left; border: none; outline: none; cursor: pointer; padding: 14px 16px; transition: 0.3s; font-size: 17px; } /* Change background color of buttons on hover */ .tab button:hover { background-color: #ddd; } /* Create an active/current tablink class */ .tab button.active { background-color: #ccc; } /* Style the tab content */ .tabcontent { display: none; padding: 6px 12px; border: 1px solid #ccc; border-top: none; } 

 <p>Click on the buttons inside the tabbed menu:</p> <div class="tab"> <button class="tablinks"onclick="return openCity(event,'London')">Jan 2017</button> <button class="tablinks" onclick="return openCity(event, 'Paris')">Feb 2017</button> <button class="tablinks" onclick="return openCity(event, 'Tokyo')">Mar 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">April 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">May 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">June 2017</button> <button class="tablinks" onclick="return openCity(event, 'Paris')">July 2017</button> <button class="tablinks" onclick="return openCity(event, 'Tokyo')">August 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">September 2017</button> <button class="tablinks"onclick="openCity(event,'London')">October 2017</button> <button class="tablinks"onclick="openCity(event,'London')">Novenber 2017</button> <button class="tablinks" onclick="openCity(event, 'Paris')">December 2017</button> <button class="tablinks" onclick="openCity(event, 'Tokyo')">Jan 2018</button> <button class="tablinks"onclick="openCity(event,'London')">Feb 2018</button> </div> <div id="London" class="tabcontent"> <h3>Januaray</h3> <p>London is the capital city of England.</p> </div> <div id="Paris" class="tabcontent"> <h3>Febrary</h3> <p>Paris is the capital of France.</p> </div> <div id="Tokyo" class="tabcontent"> <h3>March</h3> <p>Tokyo is the capital of Japan.</p> </div> 

Answer 1

如果僅使用CSS來解決此問題該怎么辦。

添加white-space: nowrap; 和overflow-x: scroll; 到.tab ：

然后移除float: left; 從.tab button並添加display: inline-block; 代替

這將使您的.tab元素滾動，並防止您的按鈕換行到下一行。

/* Style the tab */
.tab {
    /* overflow: hidden; */
    overflow-x: scroll;
    white-space: nowrap;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
}

/* Style the buttons inside the tab */
.tab button {
    background-color: inherit;
    /* float: left; */
    display: inline-block;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    transition: 0.3s;
    font-size: 17px;
}

結果將是：

 function openCity(evt, cityName) { var i, tabcontent, tablinks; tabcontent = document.getElementsByClassName("tabcontent"); for (i = 0; i < tabcontent.length; i++) { tabcontent[i].style.display = "none"; } tablinks = document.getElementsByClassName("tablinks"); for (i = 0; i < tablinks.length; i++) { tablinks[i].className = tablinks[i].className.replace(" active", ""); } document.getElementById(cityName).style.display = "block"; evt.currentTarget.className += " active"; return false; } 

 body {font-family: Arial;} /* Style the tab */ .tab { overflow-x: scroll; white-space: nowrap; border: 1px solid #ccc; background-color: #f1f1f1; } /* Style the buttons inside the tab */ .tab button { background-color: inherit; display: inline-block; border: none; outline: none; cursor: pointer; padding: 14px 16px; transition: 0.3s; font-size: 17px; } /* Change background color of buttons on hover */ .tab button:hover { background-color: #ddd; } /* Create an active/current tablink class */ .tab button.active { background-color: #ccc; } /* Style the tab content */ .tabcontent { display: none; padding: 6px 12px; border: 1px solid #ccc; border-top: none; } 

 <p>Click on the buttons inside the tabbed menu:</p> <div class="tab"> <button class="tablinks"onclick="return openCity(event,'London')">Jan 2017</button> <button class="tablinks" onclick="return openCity(event, 'Paris')">Feb 2017</button> <button class="tablinks" onclick="return openCity(event, 'Tokyo')">Mar 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">April 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">May 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">June 2017</button> <button class="tablinks" onclick="return openCity(event, 'Paris')">July 2017</button> <button class="tablinks" onclick="return openCity(event, 'Tokyo')">August 2017</button> <button class="tablinks"onclick="return openCity(event,'London')">September 2017</button> <button class="tablinks"onclick="openCity(event,'London')">October 2017</button> <button class="tablinks"onclick="openCity(event,'London')">Novenber 2017</button> <button class="tablinks" onclick="openCity(event, 'Paris')">December 2017</button> <button class="tablinks" onclick="openCity(event, 'Tokyo')">Jan 2018</button> <button class="tablinks"onclick="openCity(event,'London')">Feb 2018</button> </div> <div id="London" class="tabcontent"> <h3>Januaray</h3> <p>London is the capital city of England.</p> </div> <div id="Paris" class="tabcontent"> <h3>Febrary</h3> <p>Paris is the capital of France.</p> </div> <div id="Tokyo" class="tabcontent"> <h3>March</h3> <p>Tokyo is the capital of Japan.</p> </div> 

Answer 2

結合JoelStüdle的答案和一些JS應該可以解決問題：

1. 添加white-space: nowrap; 和overflow-x: hidden; 到.tab並在邊上留一點空白（用於控件）
2. 刪除float: left; 從.tab按鈕並添加display: inline-block;
3. 在.tab周圍添加一個包裝器以將所有導航元素保留在一個空間（稱為.tab-navigation ）中，將background-color從.tab移至其中，以便所有控件具有相同的背景色
4. 在包裝器內，添加兩個浮動導航控件.arrow-left和.arrow-right ，它們調用新函數moveNavigation(byX)
5. 添加一個新函數moveNavigation(byX)進行滾動

我還創建了一個小提琴 ，以便您可以使用它。

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碼

 function openCity(evt, cityName) { var i, tabcontent, tablinks; tabcontent = document.getElementsByClassName("tabcontent"); for (i = 0; i < tabcontent.length; i++) { tabcontent[i].style.display = "none"; } tablinks = document.getElementsByClassName("tablinks"); for (i = 0; i < tablinks.length; i++) { tablinks[i].className = tablinks[i].className.replace(" active", ""); } document.getElementById(cityName).style.display = "block"; evt.currentTarget.className += " active"; return false; } function moveNavigation(byX) { var navigation= document.getElementsByClassName("tab")[0]; navigation.scrollLeft= navigation.scrollLeft + byX; } 

 /* Style the tab */ .tab-navigation { border: 1px solid #ccc; background-color: #f1f1f1; } .tab { overflow-x: hidden; white-space: nowrap; margin-left: 30px; margin-right: 30px; } /* Style the buttons inside the tab */ .tab button, .tab-control { background-color: inherit; display: inline-block; border: none; outline: none; cursor: pointer; padding: 14px 16px; transition: 0.3s; font-size: 17px; } /* Change background color of buttons on hover */ .tab button:hover { background-color: #ddd; } /* Create an active/current tablink class */ .tab button.active { background-color: #ccc; } /* Style the tab content */ .tabcontent { display: none; padding: 6px 12px; border: 1px solid #ccc; border-top: none; } .arrow-left { float: left; } .arrow-right { float: right; } 

 <p>Click on the buttons inside the tabbed menu:</p> <div class="tab-navigation"> <button class="tab-control arrow-left" onclick="moveNavigation(-100)"> &lt; </button> <button class="tab-control arrow-right" onclick="moveNavigation(100)"> &gt; </button> <div class="tab"> <button class="tablinks" onclick="return openCity(event,'London')">Jan 2017</button> <button class="tablinks" onclick="return openCity(event, 'Paris')">Feb 2017</button> <button class="tablinks" onclick="return openCity(event, 'Tokyo')">Mar 2017</button> <button class="tablinks" onclick="return openCity(event,'London')">April 2017</button> <button class="tablinks" onclick="return openCity(event,'London')">May 2017</button> <button class="tablinks" onclick="return openCity(event,'London')">June 2017</button> <button class="tablinks" onclick="return openCity(event, 'Paris')">July 2017</button> <button class="tablinks" onclick="return openCity(event, 'Tokyo')">August 2017</button> <button class="tablinks" onclick="return openCity(event,'London')">September 2017</button> <button class="tablinks" onclick="openCity(event,'London')">October 2017</button> <button class="tablinks" onclick="openCity(event,'London')">Novenber 2017</button> <button class="tablinks" onclick="openCity(event, 'Paris')">December 2017</button> <button class="tablinks" onclick="openCity(event, 'Tokyo')">Jan 2018</button> <button class="tablinks" onclick="openCity(event,'London')">Feb 2018</button> </div> </div> <div id="London" class="tabcontent"> <h3>Januaray</h3> <p>London is the capital city of England.</p> </div> <div id="Paris" class="tabcontent"> <h3>Febrary</h3> <p>Paris is the capital of France.</p> </div> <div id="Tokyo" class="tabcontent"> <h3>March</h3> <p>Tokyo is the capital of Japan.</p> </div>