How to access UIView in ViewController when calling function from another file?
0
Situation: I paint stuff through a button-click on a subview. Then I add the subview to the view.
Problem: When calling drawNew from another swift file, the if-loop is not triggered. Probably because the view with the tag 777 does not get found.
Question: How do I tell the code to look for the view in ViewController?
When do I call the function drawNew()? I call it from another file with override func touchesEnded(...)
//###########################
// ViewController.swift
//###########################
var dv = Painting() // in here are functions to create a cg path
//
// IBActions
//
@IBAction func buttonPressed(_ sender: UIButton) {
// painting
if sender.tag == 1 {
drawNew()
} else if sender.tag == 2 {
CanvasView.clearCanvas()
}
}
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = view.viewWithTag(777) { // problem lies here maybe
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// prepare the canvas for
let newView = CharacterView(frame: CGRect(x: 0,
y:0,
width: HandwritingCanvasView.frame.width,
height: HandwritingCanvasView.frame.height))
newView.tag = 777
HandwritingCanvasView.addSubview(newView)
// self.view.addSubview(demoView)
}
Then this is the other file from where I call the drawNew() func
// HandwritingCanvasView.swift
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
ViewController.drawNew()
}
ios swift uiview
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
add a comment |
0
Situation: I paint stuff through a button-click on a subview. Then I add the subview to the view.
Problem: When calling drawNew from another swift file, the if-loop is not triggered. Probably because the view with the tag 777 does not get found.
Question: How do I tell the code to look for the view in ViewController?
When do I call the function drawNew()? I call it from another file with override func touchesEnded(...)
//###########################
// ViewController.swift
//###########################
var dv = Painting() // in here are functions to create a cg path
//
// IBActions
//
@IBAction func buttonPressed(_ sender: UIButton) {
// painting
if sender.tag == 1 {
drawNew()
} else if sender.tag == 2 {
CanvasView.clearCanvas()
}
}
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = view.viewWithTag(777) { // problem lies here maybe
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// prepare the canvas for
let newView = CharacterView(frame: CGRect(x: 0,
y:0,
width: HandwritingCanvasView.frame.width,
height: HandwritingCanvasView.frame.height))
newView.tag = 777
HandwritingCanvasView.addSubview(newView)
// self.view.addSubview(demoView)
}
Then this is the other file from where I call the drawNew() func
// HandwritingCanvasView.swift
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
ViewController.drawNew()
}
ios swift uiview
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
Needs more details, When do you add the view with tag 777? and on what event you call drawNew() from another swift file?
– Gkolunia
Nov 25 '18 at 14:25
@Gkolunia I added more code... Hope it helps...
– ItsMeDom
Nov 25 '18 at 14:47
And where do you set ViewController for HandwritingCanvasView?
– Gkolunia
Nov 25 '18 at 14:57
add a comment |
0
0
0
0
Situation: I paint stuff through a button-click on a subview. Then I add the subview to the view.
Problem: When calling drawNew from another swift file, the if-loop is not triggered. Probably because the view with the tag 777 does not get found.
Question: How do I tell the code to look for the view in ViewController?
When do I call the function drawNew()? I call it from another file with override func touchesEnded(...)
//###########################
// ViewController.swift
//###########################
var dv = Painting() // in here are functions to create a cg path
//
// IBActions
//
@IBAction func buttonPressed(_ sender: UIButton) {
// painting
if sender.tag == 1 {
drawNew()
} else if sender.tag == 2 {
CanvasView.clearCanvas()
}
}
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = view.viewWithTag(777) { // problem lies here maybe
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// prepare the canvas for
let newView = CharacterView(frame: CGRect(x: 0,
y:0,
width: HandwritingCanvasView.frame.width,
height: HandwritingCanvasView.frame.height))
newView.tag = 777
HandwritingCanvasView.addSubview(newView)
// self.view.addSubview(demoView)
}
Then this is the other file from where I call the drawNew() func
// HandwritingCanvasView.swift
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
ViewController.drawNew()
}
ios swift uiview
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
Situation: I paint stuff through a button-click on a subview. Then I add the subview to the view.
Problem: When calling drawNew from another swift file, the if-loop is not triggered. Probably because the view with the tag 777 does not get found.
Question: How do I tell the code to look for the view in ViewController?
When do I call the function drawNew()? I call it from another file with override func touchesEnded(...)
//###########################
// ViewController.swift
//###########################
var dv = Painting() // in here are functions to create a cg path
//
// IBActions
//
@IBAction func buttonPressed(_ sender: UIButton) {
// painting
if sender.tag == 1 {
drawNew()
} else if sender.tag == 2 {
CanvasView.clearCanvas()
}
}
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = view.viewWithTag(777) { // problem lies here maybe
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// prepare the canvas for
let newView = CharacterView(frame: CGRect(x: 0,
y:0,
width: HandwritingCanvasView.frame.width,
height: HandwritingCanvasView.frame.height))
newView.tag = 777
HandwritingCanvasView.addSubview(newView)
// self.view.addSubview(demoView)
}
Then this is the other file from where I call the drawNew() func
// HandwritingCanvasView.swift
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
ViewController.drawNew()
}
ios swift uiview
ios swift uiview
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
edited Nov 25 '18 at 14:46
ItsMeDom
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
asked Nov 25 '18 at 13:38
ItsMeDomItsMeDom
1842317
1842317
Needs more details, When do you add the view with tag 777? and on what event you call drawNew() from another swift file?
– Gkolunia
Nov 25 '18 at 14:25
@Gkolunia I added more code... Hope it helps...
– ItsMeDom
Nov 25 '18 at 14:47
And where do you set ViewController for HandwritingCanvasView?
– Gkolunia
Nov 25 '18 at 14:57
add a comment |
Needs more details, When do you add the view with tag 777? and on what event you call drawNew() from another swift file?
– Gkolunia
Nov 25 '18 at 14:25
@Gkolunia I added more code... Hope it helps...
– ItsMeDom
Nov 25 '18 at 14:47
And where do you set ViewController for HandwritingCanvasView?
– Gkolunia
Nov 25 '18 at 14:57
Needs more details, When do you add the view with tag 777? and on what event you call drawNew() from another swift file?
– Gkolunia
Nov 25 '18 at 14:25
Needs more details, When do you add the view with tag 777? and on what event you call drawNew() from another swift file?
– Gkolunia
Nov 25 '18 at 14:25
@Gkolunia I added more code... Hope it helps...
– ItsMeDom
Nov 25 '18 at 14:47
@Gkolunia I added more code... Hope it helps...
– ItsMeDom
Nov 25 '18 at 14:47
And where do you set ViewController for HandwritingCanvasView?
– Gkolunia
Nov 25 '18 at 14:57
And where do you set ViewController for HandwritingCanvasView?
– Gkolunia
Nov 25 '18 at 14:57
add a comment |
1 Answer
1
active
oldest
votes
0
It will be easier to have reference on newView in ViewController.
Try to do next
//###########################
// ViewController.swift
//###########################
weak var subView: UIView? //Add reference on your view
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = subView { // Use the reference instead of searching view with tag
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
// Your code is here
// ...
HandwritingCanvasView.addSubview(newView)
subView = newView
//...
}
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
Works, thanks! I also needed to declare ``let mainViewController = ViewController()´´ in the HandwritingCanvas Class.. Above the class...
– ItsMeDom
Nov 26 '18 at 6:34
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
It will be easier to have reference on newView in ViewController.
Try to do next
//###########################
// ViewController.swift
//###########################
weak var subView: UIView? //Add reference on your view
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = subView { // Use the reference instead of searching view with tag
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
// Your code is here
// ...
HandwritingCanvasView.addSubview(newView)
subView = newView
//...
}
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
Works, thanks! I also needed to declare ``let mainViewController = ViewController()´´ in the HandwritingCanvas Class.. Above the class...
– ItsMeDom
Nov 26 '18 at 6:34
add a comment |
0
It will be easier to have reference on newView in ViewController.
Try to do next
//###########################
// ViewController.swift
//###########################
weak var subView: UIView? //Add reference on your view
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = subView { // Use the reference instead of searching view with tag
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
// Your code is here
// ...
HandwritingCanvasView.addSubview(newView)
subView = newView
//...
}
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
Works, thanks! I also needed to declare ``let mainViewController = ViewController()´´ in the HandwritingCanvas Class.. Above the class...
– ItsMeDom
Nov 26 '18 at 6:34
add a comment |
0
0
0
It will be easier to have reference on newView in ViewController.
Try to do next
//###########################
// ViewController.swift
//###########################
weak var subView: UIView? //Add reference on your view
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = subView { // Use the reference instead of searching view with tag
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
// Your code is here
// ...
HandwritingCanvasView.addSubview(newView)
subView = newView
//...
}
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
It will be easier to have reference on newView in ViewController.
Try to do next
//###########################
// ViewController.swift
//###########################
weak var subView: UIView? //Add reference on your view
//
// FUNCTIONS
//
func drawNew() {
dv.makeMeSomePath()
if let foundView = subView { // Use the reference instead of searching view with tag
dv.tag = 111
foundView.addSubview(dv)
print("added subview")
}
}
override func viewDidAppear(_ animated: Bool) {
// Your code is here
// ...
HandwritingCanvasView.addSubview(newView)
subView = newView
//...
}
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
answered Nov 25 '18 at 15:18
GkoluniaGkolunia
828
828
Works, thanks! I also needed to declare ``let mainViewController = ViewController()´´ in the HandwritingCanvas Class.. Above the class...
– ItsMeDom
Nov 26 '18 at 6:34
add a comment |
Works, thanks! I also needed to declare ``let mainViewController = ViewController()´´ in the HandwritingCanvas Class.. Above the class...
– ItsMeDom
Nov 26 '18 at 6:34
Works, thanks! I also needed to declare ``let mainViewController = ViewController()´´ in the HandwritingCanvas Class.. Above the class...
– ItsMeDom
Nov 26 '18 at 6:34
Works, thanks! I also needed to declare ``let mainViewController = ViewController()´´ in the HandwritingCanvas Class.. Above the class...
– ItsMeDom
Nov 26 '18 at 6:34
add a comment |
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Needs more details, When do you add the view with tag 777? and on what event you call drawNew() from another swift file?
– Gkolunia
Nov 25 '18 at 14:25
@Gkolunia I added more code... Hope it helps...
– ItsMeDom
Nov 25 '18 at 14:47
And where do you set ViewController for HandwritingCanvasView?
– Gkolunia
Nov 25 '18 at 14:57