Android如何向片段添加活动

Question

I have multiple activities. I want to add them to backstack, when i open the activities one by one like fragments. Will it be possible for activities to add them in backstack like fragments. Any help will be useful. Thanks!

Answer 1

Just launch new activities on top of an activity and do not finish the current activity. Android will maintain an activity stack of its own. you will return to the previous activity once you finish the current activity

Answer 2

use this code when you are switching from one activity to another

 Intent a = new Intent(this, A.class);
    a.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(a);

this will give u

A>b>c>d
a>b>c
a>b
a