I'm wondering how I would go about accessing the same int
variable between all my Activity
classes in my Android app. My situation is that I have a variable that represents a number of points and I've placed it in its own class and I want the value to be the same between every Activity
that uses it.
When the user gets a point, it increases by 1 so let's say the user gets 12 points, I want it to be the same throughout all the Activity
s.
STEP 1:
Extend all your Activity
s from a common BaseActivity
class.
STEP 2:
Put your int
variable in BaseActivity
and add the protected
and static
qualifiers to the int
variable:
public class BaseActivity extends Activity{
....
....
protected static int points;
....
....
}
Now you can access the points
variable in every Activity
and it will have the same value.
There is no need to use a singleton here as the other answers are suggesting. Its much simpler to have a common static
variable. Its programming 101.
Try this. This will work.