Android - Clearing Navigation Backstack

Question

I have 4 pages.

From page_1 > page_2 > page_3 > page_4.

Once the user reaches page_3 and clicks a button, it navigates to page_4. Once the button is clicked

Answer 1

Try set Intent.FLAG_ACTIVITY_NO_HISTORY And Intent.FLAG_ACTIVITY_TASK_ON_HOME

From documentation Intent.FLAG_ACTIVITY_NO_HISTORY

If set, the new activity is not kept in the history stack. As soon as the user navigates away from it, the activity is finished. This may also be set with the noHistory attribute.

Intent.FLAG_ACTIVITY_TASK_ON_HOME

If set in an Intent passed to Context.startActivity(), this flag will cause a newly launching task to be placed on top of the current home activity task (if there is one). That is, pressing back from the task will always return the user to home even if that was not the last activity they saw. This can only be used in conjunction with FLAG_ACTIVITY_NEW_TASK.