Pass data between classes

Question

I have two classes. 1st class extends AppCompatActivity and has all my data like arraylist, constants... My 2nd class extends BaseAdapter. Now the question is: I need to use som

Answer 1

you can pass data in constructor of second class like this:

YourBaseAdapter adapter = new YourBaseAdapter(YourDataType1 data1, YourDatatype2 data2, ....)

all you need to do is create matching constructor in YourBaseAdapter