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Almost every app needs a way of inserting information using keyboard. When keyboard shows up, we do not want to keep content behind the keyboard hidden and instead, allow user to see it. UIResponder contains several notifications we can use to adjust the layout. Keyboard change notifications UIResponder contains a list of notifications and user …
Every app consists of different flows for achieving a specific goal. For example, there is a sequence of views for sign up. When sign up flow ends, we need to move to so called main view what represents the main functionality of the app. There are definitely a lot of different ways how to handle …
Continue reading "Navigating using flow controllers and responder chain on iOS"
This time we are going to take a look on how to create a form with text input using UITableView. Displaying static text in UITableView is easy but for enabling text input in UITableView and propagating the change back to a model object requires a couple of steps. Introduction In this example project we are …
Storing data persistently on iOS is something what is needed quite often. In this post, we are going to look into how to build a persistent data store and how to store image data. Initialising the persistent data store Persistent data store is an object managing a folder on disk. It allows writing and reading …
In the beginning of this year I blogged about how to generate random float and integers. Meanwhile, SE-0202 "Random Unification" got implemented in Swift 4.2 making my additions unnecessary. Let's take a look how to use new API for getting random numbers. Random integers, floats and booleans In my own implementation I was extending range …
