UIView.clipsToBounds 让子 View 只显示落在父 View 的 Frame 部分_子view不超出父view的范围 clicktobounds-优快云博客

android 如何在两个textview并行，优先让第二个textview完整显示

08-05

3641

一、使用RelativeLayout，textview2优先第一位置，向父控件右边对齐，textview1位于textview2左边显示，RelativeLayout将子控件的gravity设置为left。此处textview2最好设置一个最大宽度。当textview1文案长时。当textview1文案短时。...

uni-app：多方法实现两个view在同一行展示（布局）

weixin_46001736的博客

09-26

1万+

uni-app：实现两个view在同一行展示（布局）

import UIKit class FlowingImageViewController: UIViewController { private let containerView: UIView = { let view = UIView() view.backgroundColor = UIColor.clear view.layer.borderWidth = 2.0 view.layer.borderColor = UIColor.white.withAlphaComponent(0.5).cgColor view.layer.cornerRadius = 10 view.clipsToBounds = true view.translatesAutoresizingMaskIntoConstraints = false return view }() private let imageView: UIImageView = { let imageView = UIImageView() imageView.contentMode = .scaleAspectFill imageView.translatesAutoresizingMaskIntoConstraints = false return imageView }() private var animator: UIViewPropertyAnimator? private var imageSize: CGSize = .zero private var containerSize: CGSize = .zero override func viewDidLoad() { super.viewDidLoad() setupViews() setupImage() } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) startAnimation() } override func viewWillDisappear(_ animated: Bool) { super.viewWillDisappear(animated) stopAnimation() } private func setupViews() { view.backgroundColor = .black view.addSubview(containerView) containerView.addSubview(imageView) NSLayoutConstraint.activate([ containerView.centerXAnchor.constraint(equalTo: view.centerXAnchor), containerView.centerYAnchor.constraint(equalTo: view.centerYAnchor), containerView.widthAnchor.constraint(equalToConstant: 300), containerView.heightAnchor.constraint(equalToConstant: 200) ]) } private func setupImage() { // 使用示例图片，你可以替换为你自己的图片 if let image = UIImage(named: "sampleImage") ?? UIImage(systemName: "photo") { imageView.image = image imageSize = image.size contain

09-18

- **错误处理**：在创建`UIImageView`之前检查图片是否存在，如果图片不存在则输出错误日志。 - **代码结构优化**：将动画逻辑封装到单独的方法`performImageAnimation`中，提高代码的可读性和可维护性。

import UIKit class FlowingImageViewController: UIViewController { private let containerView: UIView = { let view = UIView() view.backgroundColor = UIColor.clear view.layer.borderWidth = 2.0 view.layer.borderColor = UIColor.white.withAlphaComponent(0.5).cgColor view.layer.cornerRadius = 10 view.clipsToBounds = true view.translatesAutoresizingMaskIntoConstraints = false return view }() private let imageView: UIImageView = { let imageView = UIImageView() imageView.contentMode = .scaleAspectFill imageView.translatesAutoresizingMaskIntoConstraints = false return imageView }() private var animator: UIViewPropertyAnimator? private var imageSize: CGSize = .zero private var containerSize: CGSize = .zero override func viewDidLoad() { super.viewDidLoad() setupViews() setupImage() } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) startAnimation() } override func viewWillDisappear(_ animated: Bool) { super.viewWillDisappear(animated) stopAnimation() } private func setupViews() { view.backgroundColor = .black view.addSubview(containerView) containerView.addSubview(imageView) NSLayoutConstraint.activate([ containerView.centerXAnchor.constraint(equalTo: view.centerXAnchor), containerView.centerYAnchor.constraint(equalTo: view.centerYAnchor), containerView.widthAnchor.constraint(equalToConstant: 300), containerView.heightAnchor.constraint(equalToConstant: 200) ]) } private func setupImage() { // 使用示例图片，你可以替换为你自己的图片 if let image = UIImage(named: "sampleImage") ?? UIImage(systemName: "photo") { imageView.image = image imageSize = image.size containerSize = CGSize(width: 300, height: 200) // 初始位置 - 居中 let initialX = (containerSize.width - imageSize.width) / 2 let initialY = (containerSize.height - imageSize.height) / 2 imageView.frame = CGRect(x: initialX, y: initialY, width: imageSize.width, height: imageSize.height) } } private func startAnimation() { stopAnimation() // 确保没有正在运行的动画 // 计算动画路径 let horizontalRange = imageSize.width - containerSize.width let verticalRange = imageSize.height - containerSize.height // 创建动画 animator = UIViewPropertyAnimator(duration: 10.0, curve: .easeInOut) { // 水平移动 if horizontalRange > 0 { let randomX = CGFloat.random(in: -horizontalRange...0) self.imageView.frame.origin.x = randomX } // 垂直移动 if verticalRange > 0 { let randomY = CGFloat.random(in: -verticalRange...0) self.imageView.frame.origin.y = randomY } } animator?.addCompletion { _ in // 动画完成后重新开始 self.startAnimation() } animator?.startAnimation() } private func stopAnimation() { animator?.stopAnimation(true) animator = nil } // 添加手势可以暂停/继续动画 @objc private func toggleAnimation() { if let animator = animator { if animator.isRunning { animator.pauseAnimation() } else { animator.startAnimation() } } else { startAnimation() } } }

09-18

通过创建 `containerView` 和 `imageView`，并在视图加载和显示时分别进行视图设置、图片设置和动画启动操作。 #### 优点 - 使用了闭包初始化视图，代码结构清晰，便于维护。 - 利用 `NSLayoutConstraint` 进行自动...

12-03

→ 这些方法在你们的组件库中很可能 **不存在或命名不同**。 --- ## ✅ 正确做法：完全对齐 `EditOrganizationMainViewController` 写法我们将做以下调整： 1. 移除所有 `.customContent { }` 和 `with:` 调用 ...

最新发布

12-03

let cv = UICollectionView(frame: .zero, collectionViewLayout: layout) cv.backgroundColor = .clear cv.isPagingEnabled = true cv.showsHorizontalScrollIndicator = false cv.bounces = true cv....

12-02

- 让它在最后一个 section cell 中展示 - 设置其高度为固定值（比如 500）或动态（后续可改） --- ## ✅ 修改后的完整代码（重点修改 `reloadData()` 部分） ```swift import UIKit import SnapKit class ...

UIView的clipsTobounds属性