Hello,
If you're pertaining to having created an android app and want it to run in your imx board, First, you have to make your board detectable by eclipse (or adb in that matter). There's instruction on the android bundle docs on how to do this.
Then build and run the android program from eclipse, choosing your imx board.
for .apk files, all I do is use "adb install" command.
at least this is how I do it. :D