Can I change the platform version of an android app after creating it?
<p>I am just learning about android app development and have created my first app which is a relatively simple app with a link to a gallery of images and some text pages. I created this using the 1.5 platform as it seemed sensible to make it backwards compatible. I've been testing it on 3.0 and it comes up tiny on the screen and I have since learnt I need to use supports-screens and other related commands to allow variable screen support which from what i read is only available in 1.6 and above. As a result I need to change the app platform to 1.6 or above and my questions are as follows:</p>

<p>1) Am I able to just go to project properties and change the platform version tickbox to a newer one (in this case 1.6)? As I tried this with the project but the supports-screens tag still gives an error (which it doesn't when I create a brand new project)?</p>

<p>2) What version should I be creating it in these days for ideal backwards compatibility but able to use most desirable features? I understand 1.6 includes a lot of the newer functionality but according to <a href="http://developer.android.com/resources/dashboard/platform-versions.html" rel="nofollow">http://developer.android.com/resources/dashboard/platform-versions.html</a> only about 4% of people are using less than 2.1 so is it better to just code using 2.1 (assuming I want to target mobiles and tablets)?</p>

<p>Thanks so much for your help as ever,</p>

<p>Dave</p>
