Will Android 2.2 apps work on Tablets running on 3.0 and higher version

My basic question is : Will d开发者_Python百科eveloping android apps with android 2.2 SDK work for android tablets running on Honeycomb (android 3.0) and higher versions ?

Also, will apps developed for phones work on tablets ?

Adithya.

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Yes, you can have the same apk work with 2.x and 3.x. Just use something like this in your manifest xml:

<uses-sdk android:minSdkVersion="4" 
          android:targetSdkVersion="11" />

If you have created a virtual android tablet you can test it on a tablet emulator, just right click your eclipse project, Run as -> Run Configurations, then check android 3.0+ in target tab.

For more info see: http://developer.android.com/guide/practices/optimizing-for-3.0.html#Optimizing

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As to the first they should, it's supposed to be forward compatible.

Having said that depending on how you developed you app it's possible that you are making use of features not present on the tablet. I have had apps that work on phones tank when I tried them on the tablet, mostly because I was not checking feature sets properly (mostly in the camera) so you do have to take some care.

Really this is not a tablet issue, more of a supported hardware issue but it becomes pretty apparent on those, many don't have cameras for instance, some don't have GPS etc.

As to the second, yes, but they won't be optimized for the tablet so your users might not like tiny images if you have not provided for higher resolution screens

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I think no. Devices with Android 3.0 ang higher have xLargeScreen resolutions. And Android 2.2 doesn't have support for this. Only Android 2.3+