Manipulate Activities

I have 4 Activit开发者_StackOverflow中文版ies A,B,C,D now I have in each activity a button of Back and button Cancel

Now I went on the button back to move to the activity that I have before example if I am on B when I press on back I get to A that I have done that by finish but the problem that I have is when I am on example C and I press cancel I should get to A but dose not work I try to make a new activity but don't work.

how can I make my function Cancel to take me back to the activity A?

Just use onActivityResult() in middle activity, and while finishing C just add the line

setResult(5)

in the middle Activity B in onActivityResult

just check in resultcode=5 finish it.

check this link

You can use Intent with flag FLAG_ACTIVITY_CLEAR_TOP in startActivity. So if you have A B C after launching A activity B and C will be closed.

For example on Activity C in cancel button click listener:

Intent cancelIntent = new Intent(this, A.class);
cancelIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

startActivity(cncelIntent);