I am working in an android application and I want to support my application in all devices. But I don\'t know from which drawable folder 8 inch tablet takes
The qualifiers hdpi,xhdpi,xxhdpi describes the screen density of the device, not the size of screen. From the official doc
The better practice is to put the following drawables
// for Phones
drawable-ldpi
drawable-mdpi
drawable-hdpi
//for 7 inch tablets
drawable-large-mdpi
drawable-large-hdpi(for Nexus 7)
// for 10 inch tablets
drawable-xlarge-mdpi