Question

I have put image as background of button. but I don’t know at what size of images should I create in Photoshop for all three folders drawable-hdpi,drawable-ldpi, and drawable-mdpi?

Thank you.

Answer 1

If your buttom image is Plain-colored background and if it can be a Stretchable image then Create a bitmap using 9-Patch Tool.

Otherwise, read about Alternate Drawables section on Android developer site:

To create alternative bitmap drawables for different densities, you
should follow the 3:4:6:8 scaling ratio between the four generalized
densities. For example, if you have a bitmap drawable that’s 48×48
pixels for medium-density screen (the size for a launcher icon), all
the different sizes should be:

36×36 for low-density

48×48 for medium-density

72×72 for high-density

96×96 for extra high-density