image - Android : Understanding drawable folder

Question

I have an image with dimensions 250*70 pixels under drawable folder (I'm just starting out in Android development, so i created drawable folder in res) and I have the same image with higher dimensions in drawable-large folder; but the image is not looking as I expected.

Can anyone explain the reason behind/purpose of 3 drawable folders?

Where should I store my image so that it displays properly in both modes (landscape & portrait) and in all the mobiles (including tablets)?

I want my image to scale dynamically to the size of the device screen.

Can anyone share your views or links to search ?

Answer 1

The folder names need to be :

• /drawable-ldpi For low density screens
• /drawable-mdpi For medium density screens
• /drawable-hdpi For high resolution screens
• /drawable-xhdpi For extra high resolution screens

/drawable should be reserved for assets that you either (1) don't care about which device or for (2) xml drawable assets

Then on top of that you can provide different resources based on configuration by using config qualifiers, you can read all about it here http://developer.android.com/guide/topics/resources/providing-resources.html

for instance, you can have high resolution assets for landscape with a folder

• /drawable-land-hdpi

Hope that helps