How to know if a particular application is installed or not on the device?

Question

I want to check whether an app is installed on the device or not. I am using code below :

PackageManager pm = context.getPackageManager();
        List

        

Answer 1

just check using application id of particular app for example check

getPackageManager().getPackageInfo("com.facebook.katana", 0);

return true;

else false

check this answer it may helpful to you. How to check programmatically if an application is installed or not in Android?