Android check for dependent application during installation?

I want to publish my application (ABC). Its an audiobook file(just for example.) wrapped as apk. When the user install this application it needs to check whether another a开发者_开发百科pplication (XYZ) already installed or not. If not let the user know they have to install the application XYZ first before installing ABC.

Thanks in advance

Rajesh

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If you know the package name of the application you are looking for you can use the PackageManager to test for the existence of an application.

try{
     ApplicationInfo info = getPackageManager()
                             .getApplicationInfo("com.myproject", 0 );
     //-- application exists
    } catch( PackageManager.NameNotFoundException e ){
     //-- application doesn't exist
}

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In case XYZ is a shared library, you may set-up the android manifest of your application to prevent users installing ABC without XYZ. Please use the element inside the AndroidManifest.xml of ABC, by stating:

<uses-library android:name="package name of XYZ" android:required="true" />

Hope this help your problem.