iOS Code Snippet ZoomableView (custom view)

When I look a photo in a smartphone, enough often appears a wish to increase a image/text like in WebView.

So I did special custom view based on ScrollView.
Works in two regimes.
1) As zoomable Panel (if is set ContentView property)
2) As zoomable ImageView (if is set ContentImage property)

If you notice any problem, pls, let me know.

 

[MarcoRome]

Look

[B4X] ZoomImageView - Cross platform zoomable + pannable image view

A custom view that shows an image and allows the user to zoom and pan the image. Instructions: - Add with designer. - Call SetBitmap. Updates: v1.06 - Fixes an issue with Android 15. v1.05 - Base_Resize is public. Call it after resizing the view in B4A. v1.04 - Fixes an issue in B4i where the...

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[Erel]

And for huge images:

[B4X] HugeImageView - show very large images

Q: I want to load a 10,000 x 10,000 image? A: That's impossible!!! The memory required is: width * height * 4 = 400MB. A: You will need to scale down the image. A: Sure. Use HugeImageView: (image source: https://images4.alphacoders.com/655/655004.jpg) How does it work? It uses two layers -...

www.b4x.com