leviathan

#import <objc/runtime.h>

- (NSArray *)discoverAppModuleClasses
{
    NSMutableArray *appModuleClasses = [NSMutableArray array];

    // Integrate all classes which comply to the provider protocol
    unsigned int count = 0;
    Class *classList = objc_copyClassList(&count);
    for (NSUInteger index = 0; index < count; index++)

leviathan

/**
 * Determines the properties of @c className and returns list of these properties as strings.
 * The method will iterate through @c className superclass hierarchy and fetch the properties from
 * the superclass hierarchy as well.
 *
 * @return the list of properties found on @c className
 */
- (NSOrderedSet<NSString *> *)getMethodListForClass:(Class)className
{
    NSMutableOrderedSet<NSString *> *propertiesList = [NSMutableOrderedSet orderedSet];

leviathan

git checkout develop
git pull origin develop
git checkout stage
git reset --hard develop
git push origin stage --force-with-lease

leviathan

Environment Info

xcode-select --print-path
xcodebuild -version
swift --version
swift build --version
pkgutil --pkg-info=com.apple.pkg.CLTools_Executables | grep version   // Check Xcode Command-Line-Tools Version

leviathan

/// Quickly dump a UIImage from memory into a tmp file.

var image: UIImage?
// ...

let imageFilePath = NSTemporaryDirectory() + "\(Date().timeIntervalSince1970).png"
try? image.pngData()!.write(to: URL(fileURLWithPath: imageFilePath))
print("Saved turn-by-turn advice image to: \(imageFilePath)")

leviathan

Show Terminal config variables

$ env
TERM_PROGRAM=Apple_Terminal
SHELL=/usr/local/bin/zsh
TERM=xterm-256color
TMPDIR=/var/folders/l4/kb9wf5dn5g31y8ctr6fj_f9c0000gn/T/
...

leviathan

Table

Before	After

raw

| Before | After |

leviathan

Swift code snippets

Make every view scollable

You can constrain the content, the UIStackView, to the contentLayoutGuide top, bottom, leading, and trailing to define the scrollable area. You can then constrain the UIStackView’s width to the frameLayoutGuide so that it only scrolls vertically. That’s it—your content can now scroll as it shrinks or grows!

UIView update constraints

final class SomeView: UIView {

leviathan

import Foundation
import UIKit
import Combine
import PlaygroundSupport

/// The `ScopedReceivePublisher` modifies any returned `Publisher` property  of `V` to receive
/// published elements on the specified `Scheduler`.
///
/// Usage:
/// ```

leviathan

import Combine
import UIKit

/// View controller, that publishes events for it's `view`'s lifecycle,
/// and allows type safe access to it's main `UIView`.
class ObservableViewController<V: UIView>: UIViewController {

    typealias LifecycleEvent = (view: V, animated: Bool)

    /// Broadcasts event after the controller's view is loaded, e.g. `viewDidLoad()`.