Joshua C. Lerner jlerner
ole
/ UIAlertController+TextField.swift
Last active
January 24, 2025 19:07
A UIAlertController with a text field and the ability to perform validation on the text the user has entered while the alert is on screen. The OK button is only enabled when the entered text passes validation. More info: https://oleb.net/2018/uialertcontroller-textfield/
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| import UIKit | |
| /// A validation rule for text input. | |
| public enum TextValidationRule { | |
| /// Any input is valid, including an empty string. | |
| case noRestriction | |
| /// The input must not be empty. | |
| case nonEmpty | |
| /// The enitre input must match a regular expression. A matching substring is not enough. | |
| case regularExpression(NSRegularExpression) |
JohnSundell
/ simrecord
Created
March 16, 2018 21:05
🎥 Script that lets you start a video recording from the iOS simulator with one command
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| #!/bin/bash | |
| ITERATION=1 | |
| EXTENSION="mp4" | |
| FILENAME="$HOME/Desktop/Simulator Recording.$EXTENSION" | |
| while [ -e "$FILENAME" ] | |
| do | |
| ITERATION=$((ITERATION+1)) | |
| FILENAME="$HOME/Desktop/Simulator Recording $ITERATION.$EXTENSION" |
manishkkatoch
/ CLLocationManager+Swizzle.swift
Created
December 6, 2017 17:51
Swizzling CLLocationManager to use MockCLLocationManager
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| // | |
| // CLLocationManager+Swizzle.swift | |
| // mockLocation | |
| // | |
| // Created by Manich Katoch on 11/30/17. | |
| // Copyright © 2017 mk. All rights reserved. | |
| // | |
| import Foundation | |
| import MapKit |
manishkkatoch
/ MockCLLocationManager.swift
Created
December 6, 2017 17:42
Mocking CLLocationManager
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| // | |
| // MockCLLocationManager.swift | |
| // | |
| // Created by Manish Katoch on 11/28/17. | |
| // Copyright © 2017 Manish Katoch. All rights reserved. | |
| // | |
| import Foundation | |
| import CoreLocation |
myell0w
/ externalKeyboard.m
Last active
October 31, 2023 11:21
Detect if there's an external keyboard attached (iOS)
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| // direct check for external keyboard | |
| + (BOOL)_isExternalKeyboardAttached | |
| { | |
| BOOL externalKeyboardAttached = NO; | |
| @try { | |
| NSString *keyboardClassName = [@[@"UI", @"Key", @"boa", @"rd", @"Im", @"pl"] componentsJoinedByString:@""]; | |
| Class c = NSClassFromString(keyboardClassName); | |
| SEL sharedInstanceSEL = NSSelectorFromString(@"sharedInstance"); | |
| if (c == Nil || ![c respondsToSelector:sharedInstanceSEL]) { |
steipete
/ Macros.h
Last active
January 6, 2024 07:24
Declare on your main init that all other init methods should call. It's a nice additional semantic warning. Works with Xcode 5.1 and above. Not tested with earlier variants, but should just be ignored. A reference to this macro shortly appeared in https://developer.apple.com/library/ios/releasenotes/ObjectiveC/ModernizationObjC/AdoptingModernObj…
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| #ifndef NS_DESIGNATED_INITIALIZER | |
| #if __has_attribute(objc_designated_initializer) | |
| #define NS_DESIGNATED_INITIALIZER __attribute((objc_designated_initializer)) | |
| #else | |
| #define NS_DESIGNATED_INITIALIZER | |
| #endif | |
| #endif |
steventroughtonsmith
/ gist:7515380
Last active
April 2, 2019 01:38
iOS 7 UIKeyCommand keydown/keyup and keycode input implementation for a UIResponder. Private API, of course…
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| -(BOOL)canBecomeFirstResponder | |
| { | |
| return YES; | |
| } | |
| -(UIKeyCommand *)_keyCommandForEvent:(UIEvent *)event // UIPhysicalKeyboardEvent | |
| { | |
| NSLog(@"keyCommandForEvent: %@\n\ | |
| type = %i\n\ | |
| keycode = %@\n\ |
andrewsardone
/ gist:7130116
Last active
December 26, 2015 09:29
Using a compound statement enclosed in parentheses to enclose scope of a local UIView that's added to your view controller's view hierarchy and held as a weak reference. In response to http://ashfurrow.com/blog/weakstrong-dance
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| #import "ViewController.h" | |
| @interface ViewController () | |
| @property (nonatomic, weak) UILabel *label; | |
| @end | |
| @implementation ViewController |
steipete
/ PSPDFUIKitMainThreadGuard.m
Last active
May 27, 2024 12:11
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
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| // Taken from the commercial iOS PDF framework http://pspdfkit.com. | |
| // Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved. | |
| // Licensed under MIT (http://opensource.org/licenses/MIT) | |
| // | |
| // You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it. | |
| // PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit. | |
| #import <objc/runtime.h> | |
| #import <objc/message.h> |
crowl
/ NSDictionary+NSNullUtility.h
Created
July 13, 2012 03:06
NSDictionary category to deal with nil instead of NSNull objects created by NSJSONSerialization
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| // | |
| // NSDictionary+NSNullUtility.h | |
| // | |
| // | |
| // Created by Pablo Heredia on 12-07-12. | |
| // Copyright (c) 2012. All rights reserved. | |
| // | |
| #import <Foundation/Foundation.h> |
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