fling and pinchzoom for an imageview in one activity

Question

I have an Imageview(like a Magazine page).When i swype in to that image then i want the next image(page).Also want Zoom in and out option for this image.How i can achieve this?

Thanks

Avram

Check this article: ImageView Zoom and Scroll. – Silverpoint

I guess you are looking for a library that does that. – Victoria

See duplicate of this: #8976086 – Victoria

Possible duplicate: #11672710 – Victoria

check my ans: https://mcmap.net/q/1471356/-zoom-and-mask-using-glide – Verlinevermeer

Answer 1

Assuming you already researched separately on pinch-to-zoom and swipe gestures, you may want to impose limitations on useability. When the image is zoomed (occupying an area greater than the screen size), you should disable swipe detection, and enable it again once the image size is less than the screen size.

Bridgettebridgewater

how can i detect whether it is a pinch zoom or swype gesture? – Avram

in detecting pinch zoom, you're using MotionEvent.ACTION_POINTER_DOWN to detect the second finger touching the screen. while there's no MotionEvent.ACTION_UP, whatever the onTouchEvent is processing should be a pinch gesture. try setting up flags to enable/disable swipe detection. that of course, in support to checking for the size of the image, as mentioned in my answer. – Bridgettebridgewater

But it contradicts the scroll gesture. Isn't there a more generic way doing this? I mean one component with pinch to zoom and scroll. Another with swipe and make them work together. – Victoria

Answer 2

I implemented such a library. There are still minor issues but it's functional and can be extended.

Here's the fork on github: https://github.com/kilaka/ImageViewZoom

Enjoy.

Victoria

Answer 3

Found this post on a a gallery (swipe between photos) with pinch-to-zoom.

Victoria

Answer 4

I recently implemented it and it works great

https://github.com/chrisbanes/PhotoView

Silverpoint