[android help] Using If and else to change to change layout file @ runtime

I am currently working on a project that i am trying to add an icon making competition and the winner will receive a special app plugin that only the contest winner will get and i would like my app to check if the package(special app plugin) exists on the users device and if it does i would like the app to display an alternate display on run-time.Would i use "if" and "else" statements to achieve this and if so how would i go about this andThanks in advanced. Note:I have successfully made the app load a different layout depending on the android version so i have a little bit of an idea but need some help. asked 12 mins ago

you can change your xml file according to your requirement in onCreate().. as i did in my code, for the different density i used different xml file. if (metrics.densityDpi == DisplayMetrics.DENSITY_MEDIUM) { setContentView(R.layout.activity_main); } else if (metrics.densityDpi == DisplayMetrics.DENSITY_LOW) { setContentView(R.layout.activity_main_small); } else { setContentView(R.layout.activity_main_large); } answered 1 min ago

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