upload a file which goes to the firebase database You should better visit the Firebase documentation site. Or find a community site for Firebase. Firebase is not a framework of Apple's and not preferred to be discussed here.

You can check the Github page I've mentioned above. Sorry, but the repository lacks some important definitions -- Emoji or EmojiView. Or do you expect all readers watch the video?

Now every time I hit compile, Xcode just launching my widget's Target by default, not my app's Target Have you chosen the right target you want to run on the Choose scheme button on the toolbar - https://help.apple.com/xcode/mac/current/#/devf0d1df47a of Xcode?

On a real device, the AuthorizationStatus always return value 2 (denied). Once user decided to deny or allow tracking, the result is stored in the device, which needs to be modified through the Settings app. Have you checked the Privacy (Tracking) settings of the real device?

Hi, this is my code : Thanks for showing your code, but maybe my words were not well representing what I wanted. But anyway, if you want some changeable color set, why don't you make it an environment object? import SwiftUI struct ContentView: View { 		@EnvironmentObject var colorManager: ColorManager 		var body: some View { 				Text("Hello, world!") 						.padding() 						//↓ Apply the changeable color 						.background(colorManager.spotifyGreen) 		} } class ColorManager: ObservableObject { 		@Published var spotifyGreen = Color("SpotifyGreen") 		//... } struct ContentView_Previews: PreviewProvider { 		static var previews: some View { 				ContentView() 						.environmentObject(ColorManager()) 		} }

 if I use todoTableView.reloadData() it works perfectly.  That cannot be a good reason. If you try not using SwipeCellKit and can reproduce the issue, it may not be the cause of the issue.

@OOPer  Thanks for showing your new code. But unfortunately, it does not reproduce the issue. I do not know what are SwipeCellKit and StrikethroughLabel, and filled missing parts with my own code which I guessed. so any of the two is causing the issue. Please try removing SwipeCellKit and see what happens.

Is there any solution to resolve?  Give up using the one which is causing the issue. Or tell the author of it and wait until the issue will be fixed. How come this issue was avoided in previous xcode versions? When a pod is doing something wrong, the bad effects may be observed only on some specific conditions.

so I just paste the necessary part here. Sorry, but it was less than necessary. What I am trying to do is that I try to reload the row of my tableview whenever user click on a specific row by doing all the logic inside the didSelectRowAt() method as I have stated above. Please show enough code to reproduce the issue. As I wrote I cannot reproduce the issue with your shown code.

I couldn't run it on the ipad.  Can you explain the details of couldn't run it on the ipad. What happens when you try to run it on the iPad?

But I don't want the old appid as my default appid. Then wait 7 days. There may be some illegal hacks but Apple would not like such things being discussed in the dev forums.

As far as I know, SwiftUI cannot manage static @State variables properly. Please try this: struct ContainerView: View { 		@State var toggle = true 		var body: some View { 				PreviewOnchangeTest(toggle: $toggle) 		} } struct PreviewOnchangeTest_Previews: PreviewProvider { 		static var previews: some View { 				ContainerView() 		} }

I guess I call the init when I create it ? True. You call init when creating a struct. (You may need to find the documentation of init. Not the header of the type.) I am old :-) I started way back on paper terminal and then on punch card :-)  Same as me. Maybe I am older than you but I don't think I'm too old to learn Swift. One advice, forget about C Sharp. Generics in C sharp and generics in Swift are different. Another advice, you should better include the chapter name/section name of the Swift book (especially in case you do not understand the descriptions). That may help both readers who want to answer to your question and yourself.

Is there any way to compile and run without the server authorization? Try one of your old AppIDs. If you get any errors with it, fix it in the right way. Better clarify what was the error before your retrying.

I'm not good at MIDI, so just read Apple's documentations and very few articles on the web. (This - https://stackoverflow.com/questions/54871326/how-is-a-coremidi-thru-connection-made-in-swift-4-2 was the only useful one I found.) One thing sure is that using MIDIThruConnectionParams is very difficult even for experienced Swift programmers. You may need something like the following: import CoreMIDI /// Fixed size C-array UInt8[128] typealias MIDIValueMapValueType = (UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8) extension MIDIValueMap { &#9;&#9; &#9;&#9;init(_ array: [UInt8]) { &#9;&#9;&#9;&#9;assert(array.count == 128, "array needs to contain 128 elements") &#9;&#9;&#9;&#9;let value = array.withUnsafeBytes {bytes in &#9;&#9;&#9;&#9;&#9;&#9;bytes.load(as: MIDIValueMapValueType.self) &#9;&#9;&#9;&#9;} &#9;&#9;&#9;&#9;self.init(value: value) &#9;&#9;} &#9;&#9; } extension UnsafeMutablePointer where Pointee == MIDIThruConnectionParams { &#9;&#9; &#9;&#9;var controls: UnsafeMutablePointer<MIDIControlTransform> { &#9;&#9;&#9;&#9;return ( &#9;&#9;&#9;&#9;&#9;&#9;UnsafeMutableRawPointer(self) &#9;&#9;&#9;&#9;&#9;&#9;&#9;&#9;+ MemoryLayout<MIDIThruConnectionParams>.stride &#9;&#9;&#9;&#9;).assumingMemoryBound(to: MIDIControlTransform.self) &#9;&#9;} &#9;&#9; &#9;&#9;var maps: UnsafeMutablePointer<MIDIValueMap> { &#9;&#9;&#9;&#9;return ( &#9;&#9;&#9;&#9;&#9;&#9;UnsafeMutableRawPointer(self) &#9;&#9;&#9;&#9;&#9;&#9;&#9;&#9;+ MemoryLayout<MIDIThruConnectionParams>.stride &#9;&#9;&#9;&#9;&#9;&#9;&#9;&#9;+ MemoryLayout<MIDIControlTransform>.stride * Int(self.pointee.numControlTransforms) &#9;&#9;&#9;&#9;).assumingMemoryBound(to: MIDIValueMap.self) &#9;&#9;} } func createMIDIThruConnectionParams( &#9;&#9;source: MIDIEndpointRef? = nil, &#9;&#9;destination: MIDIEndpointRef? = nil, &#9;&#9;controlTransforms: [MIDIControlTransform] = [], &#9;&#9;maps: [MIDIValueMap] = [] ) -> Data { &#9;&#9;let size = MemoryLayout<MIDIThruConnectionParams>.stride &#9;&#9;&#9;&#9;+ MemoryLayout<MIDIControlTransform>.stride * controlTransforms.count &#9;&#9;&#9;&#9;+ MemoryLayout<MIDIValueMap>.stride * maps.count &#9;&#9;var midiThruConnectionParams = Data(count: size) &#9;&#9;midiThruConnectionParams.withUnsafeMutableBytes {bufPtr in &#9;&#9;&#9;&#9;let paramsPtr = bufPtr.baseAddress!.assumingMemoryBound(to: MIDIThruConnectionParams.self) &#9;&#9;&#9;&#9;MIDIThruConnectionParamsInitialize(paramsPtr) &#9;&#9;&#9;&#9;// &#9;&#9;&#9;&#9;if let source = source { &#9;&#9;&#9;&#9;&#9;&#9;let thruSource = MIDIThruConnectionEndpoint(endpointRef: source, uniqueID: MIDIUniqueID(1)) &#9;&#9;&#9;&#9;&#9;&#9;paramsPtr.pointee.numSources = 1 &#9;&#9;&#9;&#9;&#9;&#9;paramsPtr.pointee.sources.0 = thruSource &#9;&#9;&#9;&#9;} &#9;&#9;&#9;&#9;if let dest = destination { &#9;&#9;&#9;&#9;&#9;&#9;let thruDest = MIDIThruConnectionEndpoint(endpointRef: dest, uniqueID: MIDIUniqueID(2)) &#9;&#9;&#9;&#9;&#9;&#9;paramsPtr.pointee.numDestinations = 1 &#9;&#9;&#9;&#9;&#9;&#9;paramsPtr.pointee.destinations.0 = thruDest &#9;&#9;&#9;&#9;} &#9;&#9;&#9;&#9;// &#9;&#9;&#9;&#9;paramsPtr.pointee.numControlTransforms = UInt16(controlTransforms.count) &#9;&#9;&#9;&#9;paramsPtr.pointee.numMaps = UInt16(maps.count) &#9;&#9;&#9;&#9;memcpy(paramsPtr.controls, controlTransforms, MemoryLayout<MIDIControlTransform>.stride * controlTransforms.count) &#9;&#9;&#9;&#9;memcpy(paramsPtr.maps, maps, MemoryLayout<MIDIValueMap>.stride * maps.count) &#9;&#9;&#9;&#9;//Do other initializations &#9;&#9;&#9;&#9;//paramsPtr.pointee.... = ... &#9;&#9;&#9;&#9;//... &#9;&#9;} &#9;&#9;return midiThruConnectionParams } let connectionParams = createMIDIThruConnectionParams( &#9;&#9;controlTransforms: [ &#9;&#9;&#9;&#9;MIDIControlTransform(/*...*/), &#9;&#9;&#9;&#9;//... &#9;&#9;] ) var connectionRef = MIDIThruConnectionRef() let status = MIDIThruConnectionCreate(nil, connectionParams as CFData, &connectionRef) (You may need to fix many parts and add more codes...) a Swift beginner. If you really are a Swift beginner, I would recommend not to use these structs directly in your Swift code. Find some third party frameworks that are more Swifty (sorry I do not know if any). Or learn how to interact with C-based APIs including pointers and C-structs with variable-length member for months, possibly for years.