Question

I want to know that the specific Application as App1 is Installed or Not on my App.
Here I don’t know the actual package name of that App1(App1 is only name).
Then How to find that application is currently installed or not?
I have tried this ,

private static final String PACKAGE_NAME = "App1";

/**
 * Returns true if "App1" is installed. 
 */
public static boolean isApp1Installed( Context context )
{
    boolean output = false;
    PackageManager pm = context.getPackageManager();
    try { 
        PackageInfo pi = pm.getPackageInfo( PACKAGE_NAME, 0 );
        if( pi != null )
        {
            output = true;
        }
    } catch (PackageManager.NameNotFoundException e) {}
    return output;
}

Please Help Me..

Answer 1

You can use PackageManager to get a list of all installed packages by using the:

getInsatlledPackages

or a list of activities by

queryIntentActivities 

for an intent with CATEGORY_LAUNCHER

By name you can find whether the app is installed or not:

String appname = packageManager.getApplicationLabel(pk).toString();

You may also follow the below link for more help:

http://www.androidsnippets.com/get-installed-applications-with-name-package-name-version-and-icon

Hope it solves your problem.