Android Question calling subs from other activities

[apti]

I have a case that I bring up a screen or activity on top of another. The form is basically modal. I need to take information from the 2nd screen and put it into the 1st screen and click a button.

I have not figured out how to do this simple thing. Can I get help?

 

[Erel]

Switch to B4XPages. Everything will be simpler.

 

[Filippo]

I have a case that I bring up a screen or activity on top of another. The form is basically modal. I need to take information from the 2nd screen and put it into the 1st screen and click a button.

I have not figured out how to do this simple thing. Can I get help?

Define a variable for the information in the starter service or in a code module, so you can change and check the variable from any activity.

 

[Jeffrey Cameron]

I have a case that I bring up a screen or activity on top of another. The form is basically modal. I need to take information from the 2nd screen and put it into the 1st screen and click a button.

I have not figured out how to do this simple thing. Can I get help?

As @Erel suggested, B4XPages would be simpler, but to answer your question each "activity" is basically it's own "program." If you call "Activity2.Subroutine1(SomeParm)" the activity you're in stops running and the activity you called starts running.

To use this methodology, you will need to store the necessary global variables in the Starter service or in a module and then access them from each activity via "Starter.MyVariable1" or "ModuleName.MyVariable1."

 

[apti]

As @Erel suggested, B4XPages would be simpler, but to answer your question each "activity" is basically it's own "program." If you call "Activity2.Subroutine1(SomeParm)" the activity you're in stops running and the activity you called starts running.

To use this methodology, you will need to store the necessary global variables in the Starter service or in a module and then access them from each activity via "Starter.MyVariable1" or "ModuleName.MyVariable1."

a switch to b4x is not going to help here. means rewriting. The problem is as you described. I am doing this
Page 1 is the normal page that does everything.
page 2 is a front end that optionally can be used to send information often as a macro to page1

All the processing is done on page1 but if page1 is suspended while page2 runs how can I get something on page1 to run without stopping page2?

 

[Jeffrey Cameron]

a switch to b4x is not going to help here. means rewriting. The problem is as you described. I am doing this
Page 1 is the normal page that does everything.
page 2 is a front end that optionally can be used to send information often as a macro to page1

All the processing is done on page1 but if page1 is suspended while page2 runs how can I get something on page1 to run without stopping page2?

Short answer, it can't. That's why @Erel suggested you use B4xPages instead of multiple activities.

[B4X] B4XPages - Cross platform and simple framework for managing multiple pages

B4XPages is a library that serves two purposes: 1. Make it simple to develop B4A apps by solving almost all of the challenges involved with Android complex activities life cycle. B4XPages makes B4A behave more similar to B4J and B4i where the new "B4XPage" element is a regular object that is...

www.b4x.com

 

[Sagenut]

a switch to b4x is not going to help here. means rewriting. The problem is as you described. I am doing this
Page 1 is the normal page that does everything.
page 2 is a front end that optionally can be used to send information often as a macro to page1

All the processing is done on page1 but if page1 is suspended while page2 runs how can I get something on page1 to run without stopping page2?

If you don't want to switch to B4XPages than you could show in a Panel what you are now showing in the second Activity, keeping all the code in a single activity.
Anyway I think that switching to Pages would not require so much rewriting.

 

[apti]

If you don't want to switch to B4XPages than you could show in a Panel what you are now showing in the second Activity, keeping all the code in a single activity.
Anyway I think that switching to Pages would not require so much rewriting.

is there another advantage to pages? and what is so different?

as for the issue I found a work around. I finish the activity allow the main process to continue and process then restart the 2nd activity and return where you left off.

 

[josejad]

I have a case that I bring up a screen or activity on top of another.

Understand this example (maybe harder than switching to B4XPages)

Different examples with 2 layouts

As an answer to the thread Forms alike, I thought that the examples below would be of general interest. Attached there are 4 examples with two same layouts but with different managements: - TwoPanelActivity One Activity with 1 Layout with 2 Panels and all views on the panels. All the code is...

www.b4x.com

put it into the 1st screen and click a button.

Using CallSubDelayed to interact between activities and services

Until Basic4android v2.00 the way to pass information between activities and services was through process global variables. CallSubDelayed makes it much simpler. It allows you to call a sub in a different service or activity. If the target module is not active, then it will be started...

www.b4x.com