How do I take Android Screen shots at the right size for publishing?

I'm sorry if this is a daft question but I appear to be missing so开发者_运维知识库mething.

I am trying to publish my first app and I need at least 2 screen shots. I have taken these using DDMS in eclipse which produces an image 240 by 400. The market requires an image that is at least 320 by 480!

How do I generate a screenshot of this size?

Create an emulator from Eclipse with the required screen-size and run your app in the emulator and then use DDMS to take the screenshot.

From Eclipse: Window > Android SDK and AVD Manager. Create a New one. Specify a screen resolution of your desired size.

Create an AVD which has an HVGA skin/resolution. HVGA is by default 320x480. Run your application once more using this AVD and use DDMS to take screen shots.