Question

I am trying to use a Button in an AlertDialog to view a webpage.

The problem is that this AlertDialog is located inside a class that extends ItemizedOverlay and doesn’t extend Activity, so Eclipse underlines it and gives the following error:

The method startActivity() is undefined for the type new DialogInterface.OnClickListener(){}

I would like to launch activities from the PositiveButton, NeutralButton and NegativeButton, but I am not able to.

In case you need more context, the main Activity is a MapView with some ItemizedOverlay, and I would like to launch a webpage with directions or another activity that does that.

Answer 1

Construct a constructor in the class which contains your alert with Context object as a parameter. Assign it to a Context variable.

Use this context variable for creating the intent.

Intent intent = new Intent(mContext, "Your next activity to be shown");//mContext is the Context variable over here.
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);    
mContext.startActivity(intent);