Android calls the activity method/variable in the adapter.

There is a popupwindow in the activity.

When you want to set a checbox Click Event in getview of the adapter, this popupwindow is displayed and hidden.

 

However, because the adapter and activity are not the same class, the operation is a little troublesome ..

 

-------------------------- Split line --------------------------------------------

 

Class: the adapter inherits the baseadapter

Class: The activity inherits the activity

 

------------------------------ In the adapter --------------------------

 

Weakreference <activity> weak; // defines weak reference variables.

 

Public adapter (context ){

This. Weak = new weakreference <activity> (activity) context );

........

}

In the getview Method

In the checkbox listener

Final atistmactivity = weak. Get ();

Activity. **(); /// // The method in the activity is called here ////////////////////////////

 

 

 

------------------------------------------- The preceding method is always used, but it is too complicated. I have heard from others these days that there is another simpler method ----------------------

 

The red code is the part of the call.

 

Activity:

Public class myactivity extends Activity

{

Public void test (){};

Public void test (INT position ){}

}

Baseadater:

Public class mybaseadapter extends baseadapter {

Myactivity context;

Public mybaseadapter (MyactivityContext ){

This. Context = context;

}

// Call the myactivity method in other functions.

Context. Test ();

Context. Text (1 );

 

 

 

}