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This is not strictly a programming question but more "how to accomplish this" question.
I am curious (and working on an app that will probably require this) how is left-right parallax scrolling implemented. To know exactly what I mean check the Yahoo Weather app (it's free - no worries there).
Are they using just one view controller or a separate controller for each view that is shown there?
What is the easiest way to implement this? I have found this topic here which kinda explains it a bit but when are they getting information from their servers? Is it when the views are changed or at the startup of the app?
Any information how to implement such scrolling would be much appreciated.
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Parallax Scrolling works with the so-called movement parallax. When an observer moves parallel to two objects, the objects appear to move at different speeds. The closer object seems to move faster, the farther away object seems to move slower.
Parallax scrolling allows your background to move slower than the foreground. This creates the illusion of depth and movement on the website for the visitors. If you check it on mobile devices, you'll notice that your parallax sections don't work but show static images instead.
Parallax is a beautiful, immersive display format designed for mobile web. It leverages a layered, parallax animation effect to capture attention in an interesting and non-intrusive way. The format creates a unique perception that different image layers of the ad have different depths.
It's really simple actually:
That's it!
I've made a multifunctional UIScrollView subclass myself that's really simple to use, perfect for this case! Get it on GitHub: https://github.com/LeonardPauli/LPParallaxScrollView
Good Luck!
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