Picker View iOS Tutorial

Picker View iOS Tutorial

The picker view is a slot-machine view to show one or more sets of values. Users select values by rotating the wheels so that the desired row of values aligns with a selection indicator. The user interface provided by a picker view consists of components and rows. A component is a wheel, which has a series of rows at indexed locations on the wheel. This tutorial is made with Xcode 8.3 and built for iOS 10.3

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Scale Images with Pinch Gesture iOS Tutorial

Scale Images with Pinch Gesture iOS Tutorial

The UIKit framework provides predefined gesture recognizers that detect common gestures. Gesture recognizers are objects that you attach to a view, which allows the view to respond to actions. In this tutorial we will display an image, which can be scaled up and down with the pinch gesture. This tutorial is made with Xcode 8.2.1 and built for iOS 10.2.

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Draw Gradients with Core Graphics Tutorial

Draw Gradients with Core Graphics Tutorial

Core Graphics is a very powerful low-level API. In this tutorial we will create gradients with the help of Core Graphics. For simplicity sake, we'll use linear gradients. Linear gradients start from one point and color to another point and color. The gradient will move from left to right on the view. This tutorial is made with Xcode 8 and built for iOS 10.

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