Hi all. I am not sure what is wrong with my current code. What I am looking to do is change all values of a string with a substring of "around #C" where # is the temperature. I am converting between farenheit and celsius and i wish to get all substrings then change the correct value depending on the current setting. So if i have a string where "This is today. The temperature is around 14C. Tomorrow the temperature will be around 18C" So the regex would get "around 14C" and "around 18C" and change the values to farenheit. Result would be something like "This is today. The temperature is around -1F. Tomorrow the temperature will be around -4F" This is my function. func formatCorrectDetail(_ detail: String, _ isCelsius: Bool) -> String {     let regex = try! NSRegularExpression(pattern: "around ((\\d+)" + (isCelsius ? "F" : "C") + ")", options: [])     let matches = regex.matches(in: detail, options: [], range: NSRange(location: 0, length: detail.utf16.count))     let formattedString = NSMutableString(string: detail)     for match in matches {       let range = match.range(at: 2)       if let rangeSubstring = Range(range, in: detail),         let temperature = Double(String(detail[rangeSubstring])) {         let val = isCelsius ? NumberTool.far2cel(temperature) : NumberTool.cel2far(temperature)         formattedString.replaceCharacters(in: range, with: val)       }     }     if formattedString.length > 0 {       return String(formattedString)     }     else {       return detail     }   } The NumberTool.far2cel() and NumberTool.cel2far() are my custom functions to convert between celsius and farehnheit. Thoughts?

Hi, i had successfully fetched data from a URL but i cannot figure out why its sub link from the same domain, does not fetch any data. it always shows nil, but it contains byte like 39962 bytes. If it is nil, shouldnt that be something like 0 bytes Sample url is this. https://earthquake.phivolcs.dost.gov.ph/2022_Earthquake_Information/September/2022_0922_1059_B2.html This is how I fetch the data from url URLSession.shared.dataTask(with: URL(urlString)) { (data, response, error) in       guard let data = data else {         completion(nil)         return       }       if error != nil {         completion(nil)       }       else {         print(data)         completion(String(data: data, encoding: .utf8))       }     }.resume() Thoughts? What could be wrong? If it is https://earthquake.phivolcs.dost.gov.ph, i can fetch its data without issues.

Please see image. I want the text "one case per million to extend". but in this scenario, it seems that the image overlay is occupying space inside the the view where the text are located Same as "One Death Per People". I think the first line should be "One Death Per" and maybe because the image is big that it somehow is occupying its area? (But i placed the image in overlay so it should be rendered no top) I think the word "Per" should still in in the first line. Any idea what could be the problem? This is my code struct Stat: View {       var body: some View {     VStack {       Text("One Case Per People")         .frame(maxWidth: .infinity, alignment: .leading)         .font(.system(size: 19))       Text("2")         .frame(maxWidth: .infinity, alignment: .leading)         .font(.system(size: 15))       Spacer()     }     .padding(8)     .frame(minHeight: 100)     .cornerRadius(8)     .background(Color.gray)     .overlay(       Image(systemName: "person.3.fill")         .resizable()         .frame(width: 60, height: 60, alignment: .trailing)         .padding(8),       alignment: .bottomTrailing     )   } } I used a grid to display them ScrollView {         LazyVGrid(columns: [GridItem(.flexible()), GridItem(.flexible())]) {             Stat()             Stat()             Stat()             Stat()           }         }       } Thoughts?

I wish to ask suggestion on how to avoid this. i dont want every tab switch to reload the component..worse, fetch from url s this where mvvm comes in? so that even if component is reloaded, the mvvm data will be used? i think it is overkill though. my first and 3rd tab fetches data and loads markers in a map. my 2nd tab is a wkwebview that loads a url i noticed that whej i switch to the 3rd tab, the 1st tab gets reloaded still. thoughts on how to avood reloading? also tried setting tag to each tab item and setting a state variable to tab view to keep track of tab switching. to no avail. thoughts?

I have a model struct struct Temp { var cityUrlId: String {     get {       print(_cityUrlId)       print("gettting="+StringTool.nullToString(_cityUrlId).trim())              return _cityUrlId     }     set(newValue) {       print("newvalue="+newValue)       _cityUrlId = _cityUrlId       print("_cityUrlId="+_cityUrlId!)     }   } } The parent view has a state variable e.g. @State var temp: Temp and a child view as a new window with @Binding var temp: Temp My question is that when the temp in child view sets a value for cityUrlId property, it's ok. but once i set a new value in the parent view, the getter returns nil. why is that? is the solution for this have to be a class for Temp instead of a struct?

Hi, is there a heatmap class that can be used in a SwiftUI Map? I do not want to use MKMapView and I have seen libraries that are not Swifty and does not make use of the new Map() Tips are welcome on how to go about this? Or if anyone has a sample code? I basically have an array of CLCoordinate2D and i wish to use that to generate a heatmap in the map. No Google Maps please. I decidede not to use this since they do not have a SwiftUI version for it.

Hi. this is my observable object final class ToolbarItemProperties: ObservableObject {   var visible = false   var disabled = false   var icon = "questionmark"   var action: () -> Void = { }   var opacity: Double = 1 } the opacity property value should either be 0.5 or 1 depending on the value of the property disabled. How to listen to it? The purpose for this is because if i set a button to disabled, it does not render any way to the user to let them know it is disabled. So i thought of changing the opacity instead, hence the opacity property. So if i do something like this item.disabled = true the opacity property value should become 0.5. if disabled is set to false, the opacity value will be 1.

I do not understand why AVPlayer is always nil  Unexpectedly found nil while unwrapping an Optional value struct SatelliteVideoView: View {       init() {     player = AVPlayer(url: URL(string: "https://www.learningcontainer.com/wp-content/uploads/2020/05/sample-mp4-file.mp4")!) }       var body: some View {     VideoPlayer(player: player!) } The documentation uses this code.

Hi. Beginner here. https://github.com/lhuanyu/SwiftClipper I am trying out Swift Clipper and when clipping arrays of CGPoint, I get the error message ClipperError(message: "Error: PolyTree struct is needed for open path clipping.") Problem is, I cannot instantiate PolyTree class because there is no init() inside of it. https://github.com/lhuanyu/SwiftClipper/blob/master/Sources/SwiftClipper/PolyNode.swift Does this mean it is best I copy the whole library source code to my project so I can at least add an init() so I can instantiate it? This is a simple method I am using to loop through each CGPoint array and union them. func cb(_ e: [[CGPoint]]) -> [CGPoint] {     var t: [CGPoint] = []     if !e.isEmpty && e.count > 1 {       t = e[0]       var paths = Paths()       let c = Clipper()       for o in (1..<e.count) {         do {           paths.removeAll()           c.clear()           c.addPath(t, .subject, false)           c.addPath(e[o], .subject, false)           try c.execute(clipType: .union, solution: &paths)           t = paths.first ?? []         } catch {           print(error)         }       }     }     return t   } Thoughts? Is this the only way to instantiate? By copying the source files to my project and add the init constructor there? Or, is there a hack to forcefully add an init constructor of a lib? (Though I do not think this is possible)