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I have a problem: my scroll view scrollable, when content is fully visible. What should i do, to enable scrolling, when some part of content is hidden?
This is the solution. I faced the same issue few months back.
public override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
ScrollView.contentSize = CGSize(width: self.view.frame.width, height: self.view.frame.height)
ScrollView.isScrollEnabled = true
ScrollView.showsVerticalScrollIndicator = false
}
Enjoy!
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I am trying to add a card view to the rows of the section, where for the first row I want the top left and top right shadow with corner radius and the last row of the section will have the bottom left and bottom right shadow with corner radius. So in the middles rows will have only left and right shadow without corner radius.
Try this it is working for me
yourRowView.layer.shadowOpacity = 0.8
yourRowView.layer.shadowOffset = CGSize(width: 0, height: 3)
yourRowView.layer.shadowRadius = 4.0
let shadowRect: CGRect = imageView.bounds.insetBy(dx: 0, dy: 4)
yourRowView.layer.shadowPath = UIBezierPath(rect: shadowRect).cgPath
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QLPreviewController navigationBar Title showing current page number like 2 of 6 but I want to change this title to any String like current file name.
Try this
let lblNavTitle = UILabel(frame: CGRect(x: 60, y: 10, width: view.frame.size.width-110, height: 20))
lblNavTitle?.textAlignment = .center
lblNavTitle?.lineBreakMode = .byTruncatingMiddle
lblNavTitle?.text = "File Name"
navigationItem.titleView = lblNavTitle
OR
Simply set title property like
self.title = "File Name"
May be it will work for you
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I want to display a picker next to a textfield, when the user starts editig. After editing, the picker disappears.
Therefore I changed the width of a textfield like this in textFieldDidBeginEditing:
func textFieldDidBeginEditing(_ textField: UITextField)
{ print ("textFieldDidBeginEditing")
let newSize = CGSize(width: 90.0, height: textfield.frame.height)
let newFrame = CGRect(origin: textfield.frame.origin, size: newSize)
textfield.frame = newFrame
}
In textFieldDidEndEditing the width is reset to the old value.
This works fine the time (beginEditing, endEditing)
In following attempts the with is not changed again (the print statement is reached)
What´s going wrong.
Everything works fine in my test project, try insert textfield.setNeedsDisplay() after set new frame.
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I do not want to make IBOutlet of the constraint between view and the top layout guide.I do not want to put identifier also. I want to find it programatically.Anyone please help me.
Select the constraint and add the identifier 'TopLayOut' like added in the pic below:
and in your code iterate through the constraints and find the right one as below:
for constraint in self.view.constraints{
if constraint == "TopLayOut"{
print("matches")
break;
}
}
This is how you have to declare the constraint programatically. Please find the code snippet.
let view = UIView()
let leadingConstraint = view.leadingAnchor.constraintEqualToAnchor(self.view.leadingAnchor)
let trailingConstraint = view.trailingAnchor.constraintEqualToAnchor(self.view.trailingAnchor)
let topConstraint = view.topAnchor.constraintEqualToAnchor(self.view.topAnchor)
let bottomConstraint = view.bottomAnchor.constraintEqualToAnchor(self.view.bottomAnchor, constant: 0)
var setConstraints = [NSLayoutConstraint]()
setConstraints.appendContentsOf([leadingConstraint,trailingConstraint,topConstraint,bottomConstraint])
NSLayoutConstraint.activateConstraints(setConstraints)
Please tick If it's helps.
Thanks.
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Can anyone suggest me how to create a 4 digit pin entry screen like One time password, User will enter and one circle will be checked/darken.
I know I can create this by using images and hidden text field. But I am unable to decide best way for the same.
Any help will be appreciated.
Imagine you have a UITextField. Getting the user's input to show up as black dots (and not expose their information) is as easy as doing this (assuming the UITextField is called field, and that you're using Swift).
field.secureTextEntry = true
Honestly I'm not totally sure what you're asking but this is my best guess.
My best guess to achieve this using image. You can simply add image on your UITextField's subview.
func addImageToTextField(txtPin : UITextField)
{
let imageView = UIImageView();
let image = UIImage(named: "darkImage.png");
imageView.image = image;
imageView.frame = CGRect(x: 0, y: 0, width: txtPin.frame.width, height: txtPin.frame.height)
txtPin.addSubview(imageView)
}
And call this method from textFieldshouldChangeCharactersInRange
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
textField.textColor = UIColor.clearColor()
if (!string.isEmpty) {
self.addImageToTextField(textField)
}
Similarly you can do the same if user hits back button to clear the textfield
I have done this and works like a charm for me. Cheers !! happy coding.