Let's say I have Activity1 that creates a simple custom object CustObject. CustObject doesn't reference any Context or similar type of object. Then, I want to pass this instance to Activity2 by setting it as a static variable in Activity2. Have a look at the corresponding code:
public class CustObject {
private int attr;
public CustObject(int arg) { // takes only integers and Strings
attr = arg;
}
}
Here's the first activity :
public class Activity1 extends Activity {
private CustObject co;
@Override
protected void onCreate(Bundle b) {
co = new CustObject(42);
}
public void launchActivity2() {
Activity2.co = co;
startActivity(new Intent(this, Activity2.class);
}
}
And here's the second activity :
public class Activity2 extends Activity {
public static CustObject co;
@Override
protected void onCreate(Bundle b) {
// stuff
}
// Do operations on the co object.
}
So my thought is that when we launch Activity2, we only "leak" the co object - which is wanted - but the rest of Activity1 and its context can be garbage collected if necessary without any problems/leaks, right?
Note that I want to do it that way because, the CustObject co is likely to be changed by Activity2 and I would like these changes to be displayed automatically in Activity1 if it hasn't been killed. If it has been killed, then it works because everything will be reloaded and the changes to CustObject in Activity2 were also stored in a database.
Thank you for your help!
PS : Also, I've always wondered if launching an activity by giving "this" as context for an Intent is leaking the parent activity??
