Jags in .9.png buttons in Android!

I am developing an Android app. I have a custom button with a .9.png as background, it is perfect in the UI tool in Eclipse, shown here:

but on phone it's like this:

As you can see this is very jaggy(not sure I use the correct word) and this is my 9-patch file:

I know I can replace this simple button with an Shape XML drawable, but does a开发者_JAVA百科nyone know what may be causing this problem and how to solve it?

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Try putting your resource in res/drawable-nodpi/, or possibly res/drawable/, instead of wherever it is, and see if that helps. As @MisterSquonk suggests, I think this is Android applying automatic density scaling.