在两个活动之间切换而不启动新活动？

Question

Lets say I have a three Activities (Activity A) - (Activity B) - (Activity C) and I am switching between them respectively. A to B, B to C . What I want to do is after making three passes ( A->B->C ) Back to B from C and then pass again from B to C without starting new Activity. I know how to back to Home (C->A) and make a single back (C->B). I Hope I made my self clear. Is there a way to make the transition B from C just like using finish() method.

Answer 1

I suggest you look at the various flags which can be used in an Intent when starting a new Activity .

One or more of the following may do what you want...

FLAG_ACTIVITY_CLEAR_TOP

FLAG_ACTIVITY_REORDER_TO_FRONT

FLAG_ACTIVITY_SINGLE_TOP

Answer 2

To not create extra instances of an Android activity, the following line to the AndroidManifest.xml inside your activity tag.

android:launchMode="singleTop"

Other than “singleTop”, the other ones are “standard”, “singleTop”, and “singleInstance”. More info here.