If I set an alertview for push notification handling, how it will look like in lock screen?
Is it like this one?

And also for the title, is it from apps name? Can’t i change it dynamically?
Sorry I can’t test it by myself since still on brainstorming and design process..
Yes it will look exactly like this one although it can change.
Users can choose the style of alerts they want: Banners, Alerts or None.
And for the title, yes, it is the application’s name itself. You can’t change it.
Hope this answers your question!