Question 1

How do I save a drawing as an image with NXDrawKit?

Accepted Answer

Use the UIImage extension methods like asPNGData() or asJPEGData() provided by the framework. After getting the merged image from the canvas delegate, call these methods to convert it to data for saving or sharing.

Question 2

What is the undo redo limit in NXDrawKit?

Accepted Answer

The canvas has a maximum history size of 50 steps for undo and redo operations, as mentioned in the public methods section. Once exceeded, older strokes are lost and cannot be recovered.

Question 3

Can I customize the colors in the NXDrawKit palette?

Accepted Answer

Yes, through the delegate method colorWithTag(tag:), you can return custom UIColor for each tag from 1 to 12. If you return nil, default colors are used; returning clearColor sets it as an eraser.

Question 4

NXDrawKit vs Apple's PencilKit: which should I use?

Accepted Answer

NXDrawKit is a lightweight, third-party framework ideal for quick integration of basic drawing in iOS 8.0+ apps. PencilKit is Apple's official, more robust solution with features like pressure sensitivity, but it requires iOS 13+ and might be overkill for simple needs.

Question 5

How to remove a background image in NXDrawKit?

Accepted Answer

Currently, there is no built-in method to remove a background image after it's set, as noted in the 'Will be improved' section. Developers need to work around this, such as by setting a new background image or handling it manually in code.

Question 6

Is NXDrawKit compatible with the latest Swift version?

Accepted Answer

Yes, version 0.8.0 and above support Swift 5.0, and the README includes badges and warnings to ensure you use the correct pod version for your Swift setup to avoid compatibility issues.

NXDrawKit

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