Guide on using OCMock
OCMock is a great framework for Objective-C (iOS or Mac OS) for test driven development.
My Dev Notes
Figuring out software, one rabbit hole at a time.
Archive
Page 12 of 18How to download all WWDC 2015 PDF Slides Only
Last year, I provided the script to download all PDFs for WWDC 2014.
Pitfall: Using UIActionSheet (or UIAlertController) and first tap does not work
There is constantly bug with UIActionSheet.
Pitfall: Creating Parent/Abstract Entitiy in Core Data
If you design your data model with parent entity, then you are most likely doing it wrong, unknowingly.
How to create retina banner ads for MoPub line item
If you have been using MoPub to serve your banner ads eg. for backfills, it is important that you know it is possible to serve retina sizes @2x.
How to make an expandable header image in a UIScrollView
A common UI design pattern is to make an image fill the header as you scroll beyond the top, like this:
Everything About NSDateFormatter
When it comes to dealing with date, it is never simple.
How to handle keyboard hide/show events in your view
It is a very common task in iOS when you have eg UITextField, which on tap brings up the keyboard, and in the process obscure part of your view.
Using appledoc to generate documentation for project
It is good practise to generate documentation for your project.
Guide to using Unwind Segues
Unwind segue is a very nice concept in iOS to “go back” to a previous view controller.
Guide to using PromiseKit
PromiseKit is a wonderful library for dealing for async callbacks.
UIScrollView Content View Contraints
The Content view in a UIScrollView is very unique when it comes to configuring a scroll view with auto layout.
Always Needed Guide to Customize UINavigationBar
Customizing UINavigationBar remains a not-easy-to-remember topic.
Long Standing Bug With Using UIScreenEdgePanGestureRecognizer Created with Xcode Interface Builder
Encountered the same bug when creating a UIScreenEdgePanGestureRecognizer via Interface Builder.
ITMS-90203 iTunes Connect Error: Require arm64 architecture
When I tried to publish an app with Watch Kit App/Extension, I have the error:
Loading (Encrypted) Custom Fonts in iOS
We talked about adding and using custom font back in 2012.
Using SWRevealViewController together with RBStoryboardLink
I posted about how to modularize storyboard using RBStoryboardLink and how to use SWRevealViewController.
Setting up SWRevealViewController
SWRevealViewController is a very well written iOS library by John Lluch.
The correct way to type quotation marks (the curly kind)
Most of us have been typing on keyboard without knowing this hideous trick. Can’t be blamed for how keyboard is designed.
How to use Reflect to set a struct field
Golang reflect package is one of the hardest to understand.
Xcode Commands to build app and run on simulator
There will be times where you want to do these on the command line.
Pitfall: NSLayoutConstraint breaking in UICollectionView
I encountered a weird error when using UICollectionView, where the storyboard is using autolayout.
Pitfall: Release Scheme optimizes code
I was once writing a simple piece of code, something along the line of:
How to break into multiple storyboards in a project
Xcode kind of just want us to have ONE storyboard in a project.
Golang Testing
Go has a lightweight testing framework.
Golang: interface is also a type
An interface is two things: it is a set of methods, but it is also a type.
Pitfall: Extensions MUST be built for iPhone/iPad
I was integrating the new feature of iOS 8 - Today Widget Extension - into one of my app, but got rejected by the Apple review team.
Bumping Build Number
Every new version uploaded to iTunes Connect needs to have a different build number in order to differentiate the version.
Fastlane - replacing ui-screen-shooter and screenshot uploader
Some 8 months ago, I had a post on how to upload many localized screenshots to iTunes Connect.
Homebrew broken on Yosemite
After upgrading to Yosemite, your brew could run into an error: