1. How can I increase the hight of my navigation bar just like Apple did for the iMessage app:
2. How do they make the navigation bar expand when the titleView is clicked to look like this:
I've tried creating a larger titleView, but it just gets clipped to the bounds of the default navigation bar height. How are they able to achieve this? Also, my view controllers are embedded in a navigation controller programmatically.
Unsure if you've just embedded Navigation into the app... or set this up programatically.
You'll need to add your navBar as a sort of "IBOulet", and then modify it's height based on an function/action/etc.
Say when you click "name button"; then something akin to "mainNavBar.heightAnchor.constant = 400" (where 400 is the new height).
Or if you've set this up manually, and have a auto layout constraint on the height of your nav bar, then you could set that up as a IBOutlet; and access it easier.
It would help if you posted some of your code, or atleast how you've set this up.
Use this class for navigation bar height :
import Foundation
import UIKit
class NavigationBar: UINavigationBar {
//set NavigationBar's height
//For iphonex, I recommended to set the minimum height to 88 or higher.
var customHeight : CGFloat = 100
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
translatesAutoresizingMaskIntoConstraints = false
}
override func sizeThatFits(_ size: CGSize) -> CGSize {
return CGSize(width: UIScreen.main.bounds.width, height: customHeight)
}
override func layoutSubviews() {
super.layoutSubviews()
self.tintColor = .black
frame = CGRect(x: frame.origin.x, y: 0, width: frame.size.width, height: customHeight)
// title position (statusbar height / 2)
setTitleVerticalPositionAdjustment(-10, for: UIBarMetrics.default)
for subview in self.subviews {
var stringFromClass = NSStringFromClass(subview.classForCoder)
if stringFromClass.contains("BarBackground") {
subview.frame = CGRect(x: 0, y: 0, width: self.frame.width, height: customHeight)
subview.backgroundColor = .yellow
}
stringFromClass = NSStringFromClass(subview.classForCoder)
if stringFromClass.contains("BarContent") {
subview.frame = CGRect(x: subview.frame.origin.x, y: 20, width: subview.frame.width, height: customHeight - 20)
}
}
}
}
Use navigation view instead of navigation bar or use custom view on viewDidLoad function hide navigation bar and show your custom view
Related
I have a tab bar. I changed its colour, gave it a corner radius, set its border width and colour, and everything is working good. Until now, everything is done in a storyboard.
Now I want to give it left and right margins, as by default it is sticking to the screen's edges.
This is the tab bar's current look:
The black arrows point to the lines that stick to the screen's edges. I want space between this line and the edges.
You can create this placeholder view inside a custom UITabBar as below,
class CustomTabBar: UITabBar {
let roundedView = UIView(frame: .zero)
override func awakeFromNib() {
super.awakeFromNib()
roundedView.layer.masksToBounds = true
roundedView.layer.cornerRadius = 12.0
roundedView.layer.borderWidth = 2.0
roundedView.isUserInteractionEnabled = false
roundedView.layer.borderColor = UIColor.black.cgColor
self.addSubview(roundedView)
}
override func layoutSubviews() {
super.layoutSubviews()
let margin: CGFloat = 12.0
let position = CGPoint(x: margin, y: 0)
let size = CGSize(width: self.frame.width - margin * 2, height: self.frame.height)
roundedView.frame = CGRect(origin: position, size: size)
}
}
Set this class for TabBar in storyboard/xib. It should give you the following,
I'm working on a app where I've got a NavigationBar at the top and added a UIViewController as an RootViewController.
Now my plan was to add a new Subview to this UIViewController. The new Subview extended also of UIViewController. I added de view (Gray Rect) of the controller to the UIViewController but it is placed behind the NavigationBar. I don't want that.. So I searched for a solution and found something interesting..:
When I just add a UIView() (Green Rect) to the UIViewController, the placing of the view works perfectly, as I would love see it from the other UIViewController-View.
My code looks like following:
class DashboardController: UIViewController {
var ccview:ContactCircleController!
override func viewDidLoad() {
super.viewDidLoad()
edgesForExtendedLayout = []
self.view.backgroundColor = .white
let test = UIView()
test.backgroundColor = .green
test.frame = CGRect(x: self.view.frame.width - 200, y: 0, width: self.view.frame.width / 2, height: self.view.frame.width / 2)
self.view.addSubview(test)
setup()
}
func setup(){
ccview = ContactCircleController()
ccview.view.frame = CGRect(x: 0, y: 0, width: self.view.frame.width / 2, height: self.view.frame.width / 2)
ccview.edgesForExtendedLayout = UIRectEdge.top
self.view.addSubview(ccview.view)
}}
I've already unchecked the "Extend Edges" - toggle of the navigationcontroller on the storyboard. I also added edgesForExtendedLayout = [] to the UIViewController and for the UIView it worked fine. But for the view of another UIViewController... it didn't worked.
Thank you!
If you use Debug View Hierarchy, you will see that your gray ccview.view is not behind the navigation bar, but rather it is not keeping the height of self.view.frame.width / 2.
This is because the .view of a UIViewController instantiated from Storyboard has by default an .autoresizingMask = [], whereas the .view of a UIViewController instantiated without a storyboard has a default .autoresizingMask = [.flexibleWidth, .flexibleHeight].
You can correct this by changing setup() to:
func setup(){
ccview = ContactCircleController()
ccview.view.frame = CGRect(x: 0, y: 0, width: self.view.frame.width / 2, height: self.view.frame.width / 2)
// remove this line
//ccview.edgesForExtendedLayout = UIRectEdge.top
// add this line
ccview.view.autoresizingMask = []
self.view.addSubview(ccview.view)
}
I have a UIButton subclass intended to show a selected state of a button. The selected state simply places a thick black line at the bottom of the button view and when unselected it hides the black line. However, when using this in a UIButton subclass, the black line view is offset. I have tried playing around with insets, but I don't think that is the problem. Here is my subclass:
class TabButton: UIButton {
private var height:CGFloat = 5
private var selectedIndicator:UIView?
override var isSelected: Bool {
didSet {
selectedIndicator?.isHidden = !isSelected
}
}
fileprivate func initializeSelector(_ frame: CGRect) {
selectedIndicator = UIView(frame: CGRect(x: 0, y: frame.size.height - height, width: frame.size.width, height: height))
selectedIndicator?.backgroundColor = UIColor.black
self.addSubview(selectedIndicator!)
}
override func awakeFromNib() {
super.awakeFromNib()
initializeSelector(self.frame)
}
}
The desired button should look like this:
But instead it looks like this:
Can anyone help me understand what is happening here and how to fix it? Thanks!
Try this, in layoutSubviews you get the final frame:
override layoutSubviews() {
super.layoutSubviews()
selectedIndicator.frame = CGRect(x: 0, y: frame.size.height - height, width: frame.size.width, height: height)
}
The frame of the selectedIndicator is set only once when initializeSelector is called. When the button changes its frame, it does not change the frame of subviews, you need to manually update the frame of selectedIndicator.
To do so, you need to override layoutSubviews() method of UIView.
override layoutSubviews() {
super.layoutSubviews()
selectedIndicator?.frame = CGRect(x: 0, y: frame.size.height - height, width: frame.size.width, height: height)
}
See this answer to know when layoutSubviews() is called.
How can i change the height of UISegmented control. I'm using Swift 3.0 with xcode 8. Height property is disabled by default.
I found this:
https://stackoverflow.com/a/41889155/7652057
#IBDesignable class MySegmentedControl: UISegmentedControl {
#IBInspectable var height: CGFloat = 29 {
didSet {
let centerSave = center
frame = CGRect(x: frame.minX, y: frame.minY, width: frame.width, height: height)
center = centerSave
}
}
}
https://stackoverflow.com/a/37716960/7652057
One of three options from the link,
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
let rect = CGRect(origin: segment.frame.origin, size: CGSize(width: segment.frame.size.width, height: 100))
segment.frame = rect
}
Ok, I was trying to do it for a long while and here is the solution.
Firstly, It is possible within IB but for that we need to have a good bunch of autolayout constraints.
I've placed that Segmented control in a UIVIew with all the edges pinned inside it.
Then I gave the desired height to that view and it worked.
Also.. thanks to all of your answer
It's very easy. You can access it programmaticly by using frame's height:
yourSegmentedControllOutlet.frame.size.height = yourHeight
I have tried embedding it, but my stack view is dynamic and my app is also changing orientations time to time. I have segment control at the end of the view.
I have also tried googling it but had no luck. thanks in advance.
So far I have done:
In view did load:
mainStackView.axis = UILayoutConstraintAxis.Vertical
mainStackView.spacing = 3
scrollView.frame = self.view.bounds
scrollView.addSubview(mainStackView)
view.addSubview(scrollView)
In view did layout:
override func viewDidLayoutSubviews()
{
super.viewDidLayoutSubviews()
let top = topLayoutGuide.length
let bottom = bottomLayoutGuide.length
self.mainStackView.frame = CGRect(x: 0, y: top, width: view.frame.width, height: view.frame.height - top - bottom).insetBy(dx: 10, dy: 10)
dispatch_async(dispatch_get_main_queue())
{
self.scrollView.frame = self.view.bounds
self.scrollView.contentSize = CGSize(width: self.view.bounds.width, height: self.segmentedControl.frame.origin.y + self.segmentedControl.frame.height + 50)
}
print(scrollView.contentSize)
}
You need to set the height constraint of segment control.
For Example:
segmentedControl.heightAnchor.constraintEqualToConstant(50).active = true
More over, you can Add Empty bottom view to avoid stack view's must fill mechanism. This will show you desired view output.
var bottomView = UIView(frame: CGRectZero)
stackView.addArrangedSubview(bottomView)