我有一个视图控制器,它有一个UIView(ParentView),然后是UIScrollview(ScrollView)。 ParentView锚定到ViewController的前导,尾随,顶部和底部。 ScrollView锚定到ParentView的前导,尾随,顶部和底部。结构是这样的:
-UIView
--ParentView
---ScrollView
然后我创建了一个包含图像和标签的xib文件。 xib将动态添加到ScrollView。 xib框架的高度和宽度等于ScrollView的高度和宽度。
当我在iphone 6上运行模拟器时,滚动效果很好; xib的宽度正好是屏幕的宽度。但是当我用iphone 6运行模拟器时,xib的宽度与屏幕大小相同,滚动到下一个项目时会有一个额外的空间。我该怎么做才能删除它!?
这是iphone 6 plus的屏幕截图
这是我的代码:
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var ParentView: UIView!
@IBOutlet weak var ScrollView: UIScrollView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let photos = ["joe", "john"]
let userNames = ["joe", "john"]
self.ScrollView.frame = CGRectMake(0, 0, self.ParentView.frame.size.width, self.ParentView.frame.size.height)
self.ScrollView.contentSize = CGSizeMake(self.ParentView.frame.size.width * CGFloat(photos.count), self.ParentView.frame.size.height)
self.ScrollView.pagingEnabled = true
var i: Int = 0
while i < 2 {
if let userXib = NSBundle.mainBundle().loadNibNamed("User", owner: self, options: nil)[0] as? User {
userXib.frame = CGRect(x: self.ScrollView.frame.size.width * CGFloat(i), y: 0, width: self.ScrollView.frame.size.width, height: userXib.frame.size.height)
userXib.assignValues(photos[i], myName: userNames[i])
self.ScrollView.addSubview(userXib)
}
i = i + 1
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
更新#1 - Coder1000解决方案: 我尝试实施#3&amp;通过在滚动内添加UIView图层,在答案中为#4。我称之为ScrollMainView。在故事板中,我设置其前导,尾随,顶部和底部以填充其超级视图:Scrollview然后在循环中将这些元素添加到它而不是scrollview。 但是现在滚动不会滚动!我的代码和最终显示如下所示:
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var ParentView: UIView!
@IBOutlet weak var ScrollView: UIScrollView!
@IBOutlet weak var ScrollMainView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
let photos = ["joe", "john"]
let userNames = ["joe", "john"]
self.ScrollView.frame = CGRectMake(0, 0, self.ParentView.frame.size.width, self.ParentView.frame.size.height)
self.ScrollView.contentSize = CGSizeMake(self.ParentView.frame.size.width * CGFloat(photos.count), self.ParentView.frame.size.height)
self.ScrollView.pagingEnabled = true
self.ScrollMainView.frame = CGRectMake(0, 0, self.ScrollView.frame.size.width, self.ScrollView.frame.size.height)
print("the frame for parentview is: \(self.ParentView.frame)")
var i: Int = 0
while i < 2 {
if let userXib = NSBundle.mainBundle().loadNibNamed("User", owner: self, options: nil)[0] as? User {
userXib.frame = CGRect(x: self.ScrollMainView.frame.size.width * CGFloat(i), y: 0, width: self.ScrollMainView.frame.size.width, height: userXib.frame.size.height)
userXib.assignValues(photos[i], myName: userNames[i])
self.ScrollMainView.addSubview(userXib)
}
i = i + 1
}
self.ScrollView.addSubview(ScrollMainView)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
答案 0 :(得分:2)
有几种解决方案,在viewDidLoad中框架设置不正确,所以当你问它时,它是错误的。
稍后会通过autolayout约束调整parentView和scrollView,但是用户视图不是......
一个简单的解决方案可能是将代码放入:
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
self.ScrollView.frame = CGRectMake(0, 0, self.ParentView.frame.size.width, self.ParentView.frame.size.height)
self.ScrollView.contentSize = CGSizeMake(self.ParentView.frame.size.width * CGFloat(photos.count), self.ParentView.frame.size.height)
self.ScrollView.pagingEnabled = true
for subView: UIView in self.ScrollView.subviews {
if subView is User { subView.removeFromSuperview()
}
var i: Int = 0
while i < 2 {
if let userXib = NSBundle.mainBundle().loadNibNamed("User", owner: self, options: nil)[0] as? User {
userXib.frame = CGRect(x: self.ScrollView.frame.size.width * CGFloat(i), y: 0, width: self.ScrollView.frame.size.width, height: userXib.frame.size.height)
userXib.assignValues(photos[i], myName: userNames[i])
self.ScrollView.addSubview(userXib)
}
i = i + 1
}
}
或者您可以通过编程方式为自定义xib添加约束。
或者你可以保留一组你的costom xib并调整它们的帧,以及在viewDidLayoutSubviews()
中的SCROLLVIEW CONTENTSIZE或者您可以将代码放在viewDidAppear()
中