iOS 11 在导航栏中自定义搜索栏
<p><p>我想在 iOS 11 搜索栏中嵌入导航栏中时更改文本和图标的颜色。所以占位符文本、搜索文本和搜索图标。</p>
<p> <a href="/image/sDDJ0.png" rel="noreferrer noopener nofollow"><img src="/image/sDDJ0.png" alt="enter image description here"/></a> </p>
<pre><code>if #available(iOS 11.0, *) {
navigationController?.navigationBar.prefersLargeTitles = false
let searchController = UISearchController(searchResultsController: nil)
navigationItem.searchController = searchController
navigationItem.hidesSearchBarWhenScrolling = false
searchController.searchBar.placeholder = "Suchen"
searchController.searchBar.tintColor = .white
}
</code></pre>
<p>正如您在图像中看到的那样，深蓝色背景上的文本是灰色的，看起来很难看。我希望文本和图标至少是白色的。 (改变蓝色背景颜色也不是很好，见<a href="https://stackoverflow.com/questions/45997996/ios-11-uisearchbar-in-uinavigationbar" rel="noreferrer noopener nofollow">my other question</a>)</p>
<p>唯一有效的方法是更改闪烁光标和“取消”按钮的颜色，这是通过 .tintColor 属性完成的。</p>
<p>似乎适用于 iOS 10 及更低版本的解决方案在 iOS 11 中似乎不再适用，因此请仅发布您知道适用于 iOS 11 的解决方案。谢谢。</p>
<p>也许我错过了关于 iOS 11 中这种“自动样式”的要点。感谢任何帮助。</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>我刚刚发现了如何设置它们的其余部分:(在 Brandon 的帮助下，谢谢!)</p>
<p>“取消”文本:</p>
<pre><code>searchController.searchBar.tintColor = .white
</code></pre>
<p>搜索图标:</p>
<pre><code>searchController.searchBar.setImage(UIImage(named: "my_search_icon"), for: UISearchBarIcon.search, state: .normal)
</code></pre>
<p>清除图标:</p>
<pre><code>searchController.searchBar.setImage(UIImage(named: "my_search_icon"), for: UISearchBarIcon.clear, state: .normal)
</code></pre>
<p>搜索文本:</p>
<pre><code>UITextField.appearance(whenContainedInInstancesOf: ).defaultTextAttributes =
</code></pre>
<p>感谢@Brandon 的帮助!</p>
<p> <a href="/image/QrB9B.png" rel="noreferrer noopener nofollow"><img src="/image/QrB9B.png" alt="enter image description here"/></a> </p>
<p>占位符:</p>
<pre><code>UITextField.appearance(whenContainedInInstancesOf: ).attributedPlaceholder = NSAttributedString(string: "placeholder", attributes: )
</code></pre>
<p> <a href="/image/5qdvs.png" rel="noreferrer noopener nofollow"><img src="/image/5qdvs.png" alt="enter image description here"/></a> </p>
<p>白色背景:</p>
<pre><code>let searchController = UISearchController(searchResultsController: nil)
searchController.delegate = self
let searchBar = searchController.searchBar
searchBar.tintColor = UIColor.white
searchBar.barTintColor = UIColor.white
if let textfield = searchBar.value(forKey: "searchField") as? UITextField {
textfield.textColor = UIColor.blue
if let backgroundview = textfield.subviews.first {
// Background color
backgroundview.backgroundColor = UIColor.white
// Rounded corner
backgroundview.layer.cornerRadius = 10;
backgroundview.clipsToBounds = true;
}
}
if let navigationbar = self.navigationController?.navigationBar {
navigationbar.barTintColor = UIColor.blue
}
navigationItem.searchController = searchController
navigationItem.hidesSearchBarWhenScrolling = false
</code></pre>
<p> <a href="/image/vPbx7.png" rel="noreferrer noopener nofollow"><img src="/image/vPbx7.png" alt="enter image description here"/></a> </p>
<p>取自 <a href="https://stackoverflow.com/questions/45997996/ios-11-uisearchbar-in-uinavigationbar/45999985#comment79464623_45999985" rel="noreferrer noopener nofollow">here</a> .</p></p>
<p style="font-size: 20px;">关于iOS 11 在导航栏中自定义搜索栏，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/46861355/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/46861355/
</a>
</p>
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