How can i get the application's icon from the package name?

Question

I have tried various solution from stack overflow with no luck. What I want.

1. I know package name of different applications.
2. I want to get application

Answer 1

try
{
    Drawable drawable = getPackageManager()
            .getApplicationIcon("com.whatsapp");
    imageView.setImageDrawable(drawable);
}
catch (PackageManager.NameNotFoundException e)
{
    e.printStackTrace();
}