we can add image as pdf in ios assets for application.But i'm confusing that which approach is good for application.
i have follows links https://icons8.com/articles/how-to-use-vectors-in-xcode-7/ and https://bjango.com/articles/idontusepdfs/ but not able to decide which one is better solution for assets. i know how to works with pdf asset but cannot decide which method is better from development point of view.
Thanks in advance.
If your artwork has complex gradients, generate the PNGs yourself. Otherwise, use PDFs. That's how I read it.
Personally, I have the luxury of working with a designer who just gives me assets at all the required sizes. On another project, Sketch was used which can auto-generate PNGs from a script as part of the build process. So I've never actually used PDFs.