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iOS – How to Drag and Scale an UIImageView over another UIImageView

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We can drag and scale an UIImageView over another UIImageView using two gestures :

UIPanGestureRecognizer and UIPinchGestureRecognizer.

For Dragging an Image View : UIPanGestureRecognizer

For Scaling an Image View : UIPinchGestureRecognizer

Here is my view that looks like : Click here —— >

Take two images :

outerImgView in background with Content mode as AspectFit

innerImgView in background with Content mode as AspectFit

Apply UIPanGestureRecognizer over innerImgView as :

dragImg func definition :

Apply UIPinchGestureRecognizer over innerImgView as :

I hope from this, it will make you more comfortable using Draggable and Scalable functionality into your app for developing various different features. Thanks for tuning in once again!

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Big thanks to Webkul and his team for helping get Opencart 3.0.3.7 release ready!

Deniel Kerr

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