Krzysztof Zabłocki • 5/20/2014

Implementing image comparison view in 20 minutes

Read Original

This article provides a step-by-step guide to building an image comparison view similar to Kaleidoscope's split feature for iOS. It details using two stacked UIImageViews, a CAShapeLayer mask in the shape of a triangle, and a pan gesture recognizer to dynamically adjust the mask. Code examples cover path calculation, gesture handling, and adding snapping behavior with CoreAnimation for a polished user interface.

0 comments
#Io #Uikit #Coreanimation
Implementing image comparison view in 20 minutes

Comments

No comments yet

Be the first to share your thoughts!

Browser Extension

Get instant access to AllDevBlogs from your browser

Top of the Week

1
React, useEffect, and Stale Closures: How to Avoid Them with Dependencies and useRef
Jivbcoop • 4 votes
2
Better react-hook-form Smart Form Components
Maarten Hus • 2 votes
3
AGI, ASI, A*I – Do we have all we need to get there?
John D. Cook • 1 votes
4
Quoting Thariq Shihipar
Simon Willison • 1 votes
5
Dew Drop – January 15, 2026 (#4583)
Alvin Ashcraft • 1 votes
6
Using Browser Apis In React Practical Guide
Jivbcoop • 1 votes