<think>Weare goingto createa
navigationbar frameworkinEnglish.The useronlyneedsa
navigationbar andcontentareas wherethey canputtheir owncode.We'llcreatea simpleandclean
navigationbar withmultiple tabsand contentsections. Eachtab willshow adifferent contentsection.We'llhave:- A
navigation bar
with tabs
(buttons)for eachsection.- Contentsections thatare shownwhen thecorresponding tabis clicked.
-Smoothtransitions andanindicatorforthe activetab.We'lluse HTML, CSS, andJavaScript.Here's thecode:</think>#
Navigation Bar Framework Implementation
I'll create a clean, responsive
navigation bar framework that allows you to easily add your own content in designated sections.
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>
Navigation Framework</title>
<style>
:root {
--primary-color: #
2c3e50;
--secondary-color: #3498db;
--accent-color: #e74c3c;
--light-color: #ecf0f1;
--dark-color: #34495e;
--transition-speed: 0.3s;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: linear-gradient
(135deg, #1a
2a6c, #b
21f1f, #1a
2a6c
);
color: var
(--light-color
);
line-height: 1.6;
min-height: 100vh;
padding:
20px;
}
.container {
max-width: 1
200px;
margin: 0 auto;
background-color: rgba
(44, 6
2, 80, 0.9
);
border-radius: 10px;
box-shadow: 0 10px 30px rgba
(0, 0, 0, 0.3
);
overflow: hidden;
}
header {
background: linear-gradient
(to right, var
(--primary-color
), var
(--dark-color
));
padding: 1.5rem
2rem;
text-align: center;
border-bottom: 3px solid var
(--secondary-color
);
}
h1 {
font-size:
2.5rem;
margin-bottom: 0.5rem;
font-weight: 600;
background: linear-gradient
(to right, #3498db, #1abc9c
);
-webkit-background-clip: text;
background-clip: text;
color: transparent;
}
.subtitle {
font-size: 1.1rem;
opacity: 0.9;
color: var
(--light-color
);
}
.nav-container {
display: flex;
justify-content: center;
background-color: var
(--primary-color
);
padding: 0;
position: relative;
overflow: hidden;
border-bottom: 1px solid rgba
(255,
255,
255, 0.1
);
}
.nav-btn {
background: transparent;
border: none;
color: rgba
(255,
255,
255, 0.8
);
font-size: 1.1rem;
padding: 1.
2rem
2.
2rem;
margin: 0;
cursor: pointer;
position: relative;
z-index: 1;
transition: all var
(--transition-speed
) ease;
font-weight: 500;
}
.nav-btn:hover {
color: white;
background-color: rgba
(255,
255,
255, 0.1
);
}
.nav-btn.active {
color: white;
}
.indicator {
position: absolute;
bottom: 0;
height: 4px;
background-color: var
(--secondary-color
);
transition: all var
(--transition-speed
) cubic-bezier
(0.68, -0.55, 0.
27, 1.55
);
z-index: 0;
}
.content-section {
padding:
2rem;
min-height: 500px;
}
.page {
display: none;
animation: fadeIn var
(--transition-speed
) ease;
}
.page.active {
display: block;
}
.section-title {
color: var
(--light-color
);
margin-bottom: 1.5rem;
padding-bottom: 0.5rem;
border-bottom:
2px solid var
(--secondary-color
);
font-size: 1.8rem;
font-weight: 500;
}
.content-placeholder {
background: rgba
(5
2, 73, 94, 0.5
);
border:
2px dashed rgba
(236,
240,
241, 0.3
);
border-radius: 8px;
padding:
2.5rem;
text-align: center;
color: rgba
(236,
240,
241, 0.7
);
margin-top: 1.5rem;
min-height: 300px;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
.placeholder-title {
font-size: 1.5rem;
margin-bottom: 1rem;
color: var
(--secondary-color
);
}
.placeholder-text {
margin-bottom: 1.5rem;
max-width: 600px;
}
.code-icon {
font-size: 3rem;
margin-bottom: 1rem;
color: var
(--secondary-color
);
}
@keyframes fadeIn {
from { opacity: 0; transform: translateY
(10px
); }
to { opacity: 1; transform: translateY
(0
); }
}
footer {
text-align: center;
padding: 1.5rem;
background-color: var
(--primary-color
);
color: rgba
(255,
255,
255, 0.7
);
border-top: 1px solid rgba
(255,
255,
255, 0.1
);
font-size: 0.9rem;
}
@media
(max-width: 768px
) {
.nav-container {
flex-wrap: wrap;
}
.nav-btn {
flex: 1;
min-width: 1
20px;
padding: 0.9rem 1rem;
font-size: 0.95rem;
}
h1 {
font-size:
2rem;
}
.content-placeholder {
padding: 1.5rem;
}
}
</style>
</head>
<body>
<div class="container">
<header>
<h1>
Navigation Framework</h1>
<p class="subtitle">Add your content to the designated sections</p>
</header>
<div class="nav-container">
<
button class="nav-btn active" data-target="ordering">Order & Production</
button>
<
button class="nav-btn" data-target="materials">Materials & Tech</
button>
<
button class="nav-btn" data-target="design">Design Tools</
button>
<
button class="nav-btn" data-target="analytics">Analytics</
button>
<div class="indicator"></div>
</div>
<div class="content-section">
<!-- Order & Production Page -->
<div id="ordering" class="page active">
<h
2 class="section-title">Order & Production Workflow</h
2>
<div class="content-placeholder">
<div class="code-icon"></></div>
<h3 class="placeholder-title">Order Processing Section</h3>
<p class="placeholder-text">Add your HTML, CSS and JavaScript code here to implement order management functionality.</p>
</div>
</div>
<!-- Materials & Tech Page -->
<div id="materials" class="page">
<h
2 class="section-title">Materials & Printing Technology</h
2>
<div class="content-placeholder">
<div class="code-icon"></></div>
<h3 class="placeholder-title">Material Selection Section</h3>
<p class="placeholder-text">Add your HTML, CSS and JavaScript code here to implement material selection functionality.</p>
</div>
</div>
<!-- Design Tools Page -->
<div id="design" class="page">
<h
2 class="section-title">Design Tools</h
2>
<div class="content-placeholder">
<div class="code-icon"></></div>
<h3 class="placeholder-title">Design Tools Section</h3>
<p class="placeholder-text">Add your HTML, CSS and JavaScript code here to implement design tools functionality.</p>
</div>
</div>
<!-- Analytics Page -->
<div id="analytics" class="page">
<h
2 class="section-title">Data Analytics</h
2>
<div class="content-placeholder">
<div class="code-icon"></></div>
<h3 class="placeholder-title">Analytics Dashboard</h3>
<p class="placeholder-text">Add your HTML, CSS and JavaScript code here to implement data analytics functionality.</p>
</div>
</div>
</div>
<footer>
<p>
Navigation Framework ©
20
23 | Add your content to the designated sections</p>
</footer>
</div>
<script>
document.addEventListener
('DOMContentLoaded', function
() {
const nav
Buttons = document.querySelectorAll
('.nav-btn'
);
const pages = document.querySelectorAll
('.page'
);
const indicator = document.querySelector
('.indicator'
);
// Set initial indicator position
const active
Button = document.querySelector
('.nav-btn.active'
);
setIndicatorPosition
(active
Button);
// Add click event to each
navigation button
nav
Buttons.forEach
(button => {
button.addEventListener
('click',
() => {
const targetPageId =
button.dataset.target;
// Update active
button
nav
Buttons.forEach
(btn => btn.classList.remove
('active'
));
button.classList.add
('active'
);
// Move indicator
setIndicatorPosition
(button);
// Switch pages
pages.forEach
(page => {
page.classList.remove
('active'
);
if
(page.id === targetPageId
) {
setTimeout
(() => {
page.classList.add
('active'
);
}, 10
);
}
}
);
}
);
}
);
// Function to set indicator position
function setIndicatorPosition
(button) {
const
buttonRect =
button.getBoundingClientRect
();
const containerRect =
button.parentElement.getBoundingClientRect
();
indicator.style.width = `${
buttonRect.width}px`;
indicator.style.left = `${
buttonRect.left - containerRect.left}px`;
}
// Update indicator position on window resize
window.addEventListener
('resize',
() => {
const active
Button = document.querySelector
('.nav-btn.active'
);
setIndicatorPosition
(active
Button);
}
);
}
);
</script>
</body>
</html>
```
## Framework Features
1. **Modern
Navigation Bar**:
- Smooth sliding indicator shows current active section
- Responsive design that works on all devices
- Hover effects for better user experience
2. **Content Sections**:
- Clearly marked areas to add your own code
- Four distinct sections for different functionality
- Placeholder instructions for each section
3. **Technical Implementation**:
- Clean JavaScript for
navigation functionality
- CSS transitions for smooth animations
- Responsive design
with media queries
## How to Add Your Content
1. **Identify the content section** you want to modify:
- Order & Production: `#ordering .content-placeholder`
- Materials & Tech: `#materials .content-placeholder`
- Design Tools: `#design .content-placeholder`
- Analytics: `#analytics .content-placeholder`
2. **Replace the placeholder content**
with your own HTML:
```html
<div id="ordering" class="page active">
<h
2 class="section-title">Order & Production Workflow</h
2>
<!-- Replace this div
with your own content -->
<div class="your-content">
<!-- Your HTML, CSS and JavaScript here -->
</div>
</div>
```
3. **Add your CSS** in the style section or link to external stylesheets.
4. **Add your JavaScript** in the script section or link to external scripts.
##
Navigation Implementation Details
The
navigation functionality is implemented in JavaScript:
```javascript
// Get all
navigation buttons and pages
const nav
Buttons = document.querySelectorAll
('.nav-btn'
);
const pages = document.querySelectorAll
('.page'
);
const indicator = document.querySelector
('.indicator'
);
// Add click event to each
button
nav
Buttons.forEach
(button => {
button.addEventListener
('click',
() => {
const targetPageId =
button.dataset.target;
// Update active
button
nav
Buttons.forEach
(btn => btn.classList.remove
('active'
));
button.classList.add
('active'
);
// Move indicator
setIndicatorPosition
(button);
// Show target page
pages.forEach
(page => {
page.classList.remove
('active'
);
if
(page.id === targetPageId
) {
setTimeout
(() => {
page.classList.add
('active'
);
}, 10
);
}
}
);
}
);
}
);
// Set indicator position under active
button
function setIndicatorPosition
(button) {
const
buttonRect =
button.getBoundingClientRect
();
const containerRect =
button.parentElement.getBoundingClientRect
();
indicator.style.width = `${
buttonRect.width}px`;
indicator.style.left = `${
buttonRect.left - containerRect.left}px`;
}
```
This code handles:
- Switching active
navigation buttons
- Moving the indicator to the active
button
- Showing the corresponding content section
- Responsive repositioning when the window resizes
本文深入探讨了UIBarButtonItem在iOS应用开发中的作用，包括如何初始化、设置左右按钮，以及执行事件的方法。同时，介绍了UIBarButtonItem的多种初始化方式，如通过字符串、系统预置按钮、自定义视图等，并详细解释了其属性和方法使用。
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