NEW: Get your ticket for Hacking with Swift Live 2019! >>

< How to blend views together   How to create a basic animation >

How to adjust views by tinting, and desaturating, and more

SwiftUI lets us finely control the way views look by adjusting their brightness, tint, hue, saturation, and much more, all by using various modifiers.

For example, this creates an image view and tints the whole thing red:

Image("paul-hudson")
    .colorMultiply(.red)

You can adjust the saturation of views to any amount, where 0.0 is fully gray and 1.0 is its original color:

Image("paul-hudson")
    .saturation(0.5)

You can even dynamically adjust the contrast of a view by using the contrast() modifier. A value of 0.0 yields no contrast (a flat gray image), 1.0 gives you the original image, and everything above 1.0 adds contrast.

So, this will reduce the image contrast to 50%:

Image("paul-hudson")
    .contrast(0.5)

HACKING WITH SWIFT LIVE This July is a new two-day event where you'll be inspired by great speakers on day one then learn all the amazing new features from WWDC on day two – click here for more information and tickets.

< How to blend views together   How to create a basic animation >
MASTER SWIFT NOW
Buy Testing Swift Buy Practical iOS 12 Buy Pro Swift Buy Swift Design Patterns Buy Swift Coding Challenges Buy Server-Side Swift (Vapor Edition) Buy Server-Side Swift (Kitura Edition) Buy Hacking with macOS Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with Swift Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code

Was this page useful? Let me know!

Average rating: 4.0/5

Click here to visit the Hacking with Swift store >>