单击按钮从我的第二个活动返回到第一个活动后，整个数据都消失了

Question

I have two activties: activity_main, activity_display

in the main_activity user enters his/her name and presses the toggle button to display. that takes the user to display_activity page where the result is displayed. if the user finds that he/she has entered the wrong info they can go back and edit.

here is where the problem starts after pressing the toggle button - display it goes to display_activity and displays but when I press "back" button I'm restarting the whole (first) main_activity again... no values are present... even the toggle button that needs to be set to "reset" is again showing "display".

should i use something else instead of

                        startActivity(intend1);

i want to resume the (first) activity main not restart everything

Answer 1

Seems like your first activity uses results from second activity. you can use startActivityForResult. Here is a very good answer refer to it.

How to manage startActivityForResult on Android