How to Get a Cgpoint from a Tapped Location

How to get a CGPoint from a tapped location?

you have two way ...

1.

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 
{
  UITouch *touch = [[event allTouches] anyObject];
  CGPoint location = [touch locationInView:touch.view];
}

here,you can get location with point from current view...

2.

UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
[tapRecognizer setNumberOfTapsRequired:1];
[tapRecognizer setDelegate:self];
[self.view addGestureRecognizer:tapRecognizer];

here,this code use when you want to do somthing with your perticular object or subview of your mainview

how to get tap point (coordinates) in iOS swift

In PageViewController,if you want to get pop up

In viewDidLoad:

let tap = UITapGestureRecognizer(target: self, action: "showMoreActions:")
    tap.numberOfTapsRequired = 1
    view.addGestureRecognizer(tap)

Make the page view controller inherit UIGestureRecognizerDelegate then add:

  func showMoreActions(touch: UITapGestureRecognizer) {

        let touchPoint = touch.locationInView(self.view)
        let DynamicView = UIView(frame: CGRectMake(touchPoint.x, touchPoint.y, 100, 100))
        DynamicView.backgroundColor=UIColor.greenColor()
        DynamicView.layer.cornerRadius=25
        DynamicView.layer.borderWidth=2
        self.view.addSubview(DynamicView)

}

UIPageViewController with TouchEvent

How could I get the CGPoint of the TapGesture in SwiftUI

Here is possible approach (tested with Xcode 11.4 / iOS 13.4)

fileprivate struct ImageWrapper: View {
    let image: UIImage

    @State var lastLocation: CGPoint = .zero
    var body: some View {
        let fitToFill = TapGesture(count: 2)
            .onEnded {
                // << use self.lastLocation here as needed
            }.simultaneously(with: 
            DragGesture(minimumDistance: 0, coordinateSpace: .local).onChanged { value in
                // location in image own coordinates, if needed in screen,
                // then change above coordinateSpace to .global
                self.lastLocation = value.location 
            })

         return Image(uiImage: image)
            .renderingMode(.original)
            .gesture(fitToFill)
        }
}

Getting the coordinates from the location I touch the touchscreen

In a UIResponder subclass, such as UIView:

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    let touch = touches.anyObject()! as UITouch
    let location = touch.locationInView(self)
}

This will return a CGPoint in view coordinates.

Updated with Swift 3 syntax

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    let touch = touches.first!
    let location = touch.location(in: self)
}

Updated with Swift 4 syntax

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    let touch = touches.first!
    let location = touch.location(in: self.view)
}

Find CGPoint Location of substring in TextView

You can use firstRectForRange(_:) method on UITextView

let textFont = [NSFontAttributeName: UIFont(name: "GillSansMT", size: 30.0) ?? UIFont.systemFontOfSize(18.0)]
let attrString1 = NSMutableAttributedString(string: "My name is Dug.", attributes: textFont)

// range of substring to search
let str1 = attrString1.string as NSString
let range = str1.rangeOfString("name", options: nil, range: NSMakeRange(0, str1.length))

// prepare the textview
let textView = UITextView(frame:CGRectMake(0,0,200,200))
textView.attributedText = attrString1

// you should ensure layout
textView.layoutManager.ensureLayoutForTextContainer(textView.textContainer)

// text position of the range.location
let start = textView.positionFromPosition(textView.beginningOfDocument, offset: range.location)!
// text position of the end of the range    
let end = textView.positionFromPosition(start, offset: range.length)!

// text range of the range
let tRange = textView.textRangeFromPosition(start, toPosition: end)

// here it is!
let rect = textView.firstRectForRange(tRange)

How to transform multiple view to same location(CGPoint)

I think your problem was that you didn't reduce the size of the image view so that they stack at the exact centre of the screen.

let deltaX = (self.view.center.x - card.frame.minX) - card.frame.width/2
let deltaY = (self.view.center.y - card.frame.minY) - card.frame.height/2
UIView.animate(withDuration: 1) {
    card.transform = .init(translationX: deltaX, y: deltaY)
}

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