599 questions
The other day, I wrote a program for audio playback, but it doesn't play.Thank you for pointing it out.import UIKitimport AVFoundationclassViewController:UIViewController { varplayer —AVAudioPlayer? l...
Please tell me how to use multiple TableView Cells when using TableView on Swift.As an image, I would like to display two different cells in one table.As for the atmosphere, I would like to display th...
Attempting to save the image Type 'Storage' has no member 'storage' error when set to let storageRef=Storage.storage().reference().child(profile_image).child(fileName).I have imported the Firebase mod...
I'm a beginner, when I select a file from the album on my device.How do I describe the file when I determine whether it is an image or a video within the imagePickerControlle delivery?We assume the fo...
uint8_t*buf=(uint8_t*) [characteristic.value bytes];_textField.text=[NSString stringWithFormat:@%d, buf[0]];I'd like to write this Objective-C code on Swift, but I don't know how to write it well.I wo...
I'd like to create an app that uses coredata linked to the contact identifier to extend my contact information, but will iTunes maintain the identifier after backup and restoration to other devices?I ...
When you press the button, the camera starts, and when the camera screen is switched to the main view, the image you are adding to the view disappears.I'd like to make it a specification, but it doesn...
There are screens A, B, and C, and I would like to use the segment on the Storyboard for screen transition.The transition is ·Screen A→C ·Screen B→Cis available.At this time, when I press the back bu...
Using UICollectionView, we implement screens with multiple sections.We use UICollectionViewFlowLayout customized to make cell sizes variable.To display the header, the recognition is to set the follow...
UserDefault saves the array of Strings and tries to reload it.However, when I read it, it gets nil and the application drops due to an error.I'm trying with code on Playground, but please tell me how ...
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