Question

how can i call an activity from stack instead of launching new instance ?
here is a scenario :

1. calling activity A with parameters in order to retrieve data
2. navigate from A to B
3. navigate from B to C
4. i want launch A again but not with a new instance , i want get it from the stack so no need to pass parameters and wait to retrieve data.

Answer 1

If I get your point correctly you can simple exit your activity B and C with finish();.

So if you ActivityC finishes and also ActivityB the ActivityA should come to the front, which should be that what you want.