gboyegadada

On .task modifier and the main thread

You have to think about threading differently with async/await and the .task modifier. Although it begins on the main thread, each line of await code goes off and does something and when it completes it moves on to the next line. The actual thread that the awaited line runs on depends on its actor. If it is an async func inside the View struct then it is the main thread because that is marked with @MainActor, thus the main thread will be blocked during the await line. If it is declared in a different struct or class then it should be a random background thread. You can also get a background thread within the .task by using a child Task { } and even if the screen that is showing this View struct dissapears this child Task will still be cancelled same way .task is, be careful not to use Task.detatched because that will not be cancelled and could cause a crash. Another way to get a background thread in a View func is to mark it as nonisolated. Put a breakpo

gboyegadada

How to add a silent audio track to App Store Preview with ffmpeg

---

Note to self.

ffmpeg -i video-with-no-audio.mp4 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -c:v copy -shortest -map 0:v -map 1:a video-with-stereo-track.mp4

gboyegadada

// issue: you are writing a bunch of CGImages to disk concurrently and getting this in the logs:

AVEBridge Info: AVEEncoder_CreateInstance: Received CreateInstance (from VT)
AVEBridge Error: startUserClient: IOServiceOpen returned 0xe00002e2
Assert - (err == noErr) - f: /AppleInternal/Library/BuildRoots/989643e2-e205-11ee-ae2f-ae2a9a6175d7/Library/Caches/com.apple.xbs/Sources/AppleAVEBridge/AppleAVEEncoder/AppleAVEEncoder.c l: 1955
AVE FIG ERROR: createChannel failed.
AVEBridge Error: AVEEncoder_CreateInstance: returning err = -536870174
IMKInputSession (deactivate) timed out waiting for response
IMKInputSession (deactivate) timed out waiting for response

gboyegadada

//
//  AlertCenter.swift
//
//  Created by Gboyega Dada on 03/05/2024.
//

import Foundation
import SwiftUI

@Observable class AlertCenter {

gboyegadada

# Examples of Different Styles and Syntax

# legal / positive case / you can do these stuffs
# ---------------------------------------------------------------------------

# single line, nothing special
Enum.map(0...2, fn i -> IO.puts i end)
"""
0
1

gboyegadada

//
//  ExampleView.swift
//
//  Created by Gboyega Dada on 13/01/2024.
//

import SwiftUI

struct ExampleView: View {
    var src: URL

gboyegadada

//
//  TransferableItem.swift
//
//  Created by Gboyega Dada on 22/11/2023.
//
// @see https://stackoverflow.com/a/57648296/1661299
// @see https://exploringswift.com/blog/creating-a-nsitemprovider-for-custom-model-class-drag-drop-api
// @see https://stackoverflow.com/a/66169874/1661299
//

gboyegadada

// For images...

import AppKit

extension URL {   

  func getImageSize() -> CGSize? {
        guard let src = CGImageSourceCreateWithURL(self as CFURL, nil) else {
            return nil
        }

gboyegadada

struct WebImageMetaData: Decodable {
    let title: String?
    let summary: String?
    let url: URL?
    let image: URL?
    let mimetype: String?
    let width: String?
    let height: String?
    
    private enum CodingKeys: String, CodingKey {

gboyegadada

// Based on: https://gist.github.com/terranware/962da63ca547f55667f6

var https = require('https');
var util = require('util');

exports.handler = function(event, context) {
    console.log(JSON.stringify(event, null, 2));
    console.log('From SNS:', event.Records[0].Sns.Message);

    var postData = {