Robert Pieta

Swift

Matrix Multiplication, Division, Addition, and Subtraction in Swift

Learn how to multiply, divide, add and subtract matrices in Swift using the performance optimized Accelerate framework.

Swift

Accelerometer and Gyroscope Examples in Swift

Learn how to read motion data (accelerometer, gyroscope, and magnetometer) from iOS devices in Swift.

Swift

Play A Sound Using AVAudioPlayer In Swift

Learn how to load a sound file or sound effect, configure an AVSession to play sound, and play a sound file using AVAudioPlayer in Swift.

Create, Throw, and Handle Custom Errors In Swift

Learn how to create, extend, throw, and handle custom error types in Swift.

Swift

Rounding Floats and Doubles in Swift

Learn how to round decimal numbers up, down, and with custom decimal precision in Swift.

Swift

Get User Location In Swift With CLLocationManager

Learn how to request location permissions, get updates on a user’s location, and check location permissions in Swift.

Swift

How To Create A Custom Delegate In Swift

Learn how to use the Delegate pattern by defining a protocol and creating a Delegate in Swift.

let vs var in Swift

Learn what is the difference between let and var in Swift, and when to use var and let variables.

Swift

Parallel For Loops in Swift

Learn how for loops can be implemented as parallel for loops using DispatchQueue and DispatchGroup in Swift.

Swift

The Swift Guard Keyword

Learn about Swift guard with examples for guard else throw, guard let optional, guard available, guard multiple conditions, and guard case enum.

Swift

The Swift Defer Keyword

Learn about defer in Swift with examples for defer after return, defer completion, defer logic, and defer return value.

Swift

Delay A Function Call and Sleep A Thread in Swift

Learn how to delay execution of a function and block a thread with sleep in Swift.