599 questions
Is it okay to put endless data into UserDefaults?I'm not sure if I should switch to Sqlite or Realm.It would be better to centralize the database, but it would be troublesome if it were an existing ap...
It was during practice at Myplayground.(https://i.stack.imgur.com/CXHAv.jpg)I've just started the programming grammar on swift, and it's a basic one, but I don't know why I get an error.
I would like ViewController to handle changes in the number of elements in an array in another class.//ViewControllerdataSource.addObserver(self, forKeyPath: dataArray, options: .New, context:nil)over...
I use AVPlayerViewController to play videos.After playing the video I gave to Player, I would like to play the next video with the Fast Forward/Skip button (>>|).However, I don't know how to get...
Thank you for your continuous support.I would like to use UITableView with SpriteKit.We would like to customize the cells by referring to the following site.In the following source, the cell is compos...
How do I run a shell script from Swift?Also, I would like to wait for Swift to finish executing the shell script.
I'm a beginner at Realm, so I'm sorry if this is a misguided question.Currently, I convert the database created in Excel into csv, load it from SQLite, and run it with the iPhone app.However, since th...
let videoInput=AVCaptureDeviceInput.deviceInputWithDevice(self.videoDevice, error:nil)!Extra argument 'error' in call with the above codeWhat is the cause of the error?
Like dealing with illustrator figures, Is there any way to handle lines as a figure?Draw a line from one point to another and It is assumed that the line itself can be dragged to move, rotate, or shri...
The question is whether the code below is correct or not.In XCode 9.0, this is the code for Swift 4.When I tried to execute it with the code below error:Execution was interrupted, reason:EXC_BAD_ACCES...
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