Android Question How to kill all activities in the app?

[Beja]

The tech advice is to let the OS kill them at its own convenience! but the problem is when I run the same app again,
it started from where it last closed, not from Main activity. and there's a lot of data in memory too.

 

[timwil]

I end my apps with

Activity.Finish
ExitApplication

 

[Beja]

I end my apps with

Activity.Finish
ExitApplication

In which activity you put that if you have 4 beside main, and you want to exit while in the third?

 

[timwil]

I only use the main activity

If you have service modules you can use stopservice(name)

I am trying to understand why have multiple Activities - I just use panels and make them visible or not visible as required or zoom them down to .setlayout(0,0,1,1)

 

[Beja]

You are right, if I use only one activity then there is no problem.. the problem is when I use more than activity, and this is very normal in large business apps.
Thanks anyways.
Question still on...

 

[KZero]

if all activities are finished the app should start from the main activity in the next time you run it

adding this line to your manifest editor may help

SetApplicationAttribute(android:clearTaskOnLaunch, "true")

I only use the main activity

If you have service modules you can use stopservice(name)

I am trying to understand why have multiple Activities - I just use panels and make them visible or not visible as required or zoom them down to .setlayout(0,0,1,1)

this approach makes your app consume more resources its much better to use multiple activities instead

 

[timwil]

I guess this answers my question on multiple activities

http://stackoverflow.com/questions/...ltiple-activities-or-switching-views-manually

 

[Beja]

Thanks KZero, but the manifest line didn't change it..
If all activities are finished then the app will start from main next time.. but the question is how to finish all the activities?

 

[Troberg]

I only use the main activity

If you have service modules you can use stopservice(name)

I am trying to understand why have multiple Activities - I just use panels and make them visible or not visible as required or zoom them down to .setlayout(0,0,1,1)

You can load them and unload them as needed to conserve resources, and keep as much code as possible in classes. That way, you can get "best of both worlds", you get the simplicity of a single activity without the overhead of a single activity.

 

[KZero]

Thanks KZero, but the manifest line didn't change it..
If all activities are finished then the app will start from main next time.. but the question is how to finish all the activities?

'code by JakeBullet70

Sub RestartApp
Dim R, R2 As Reflector
    R.Target = R.GetActivity
    R.Target = R.RunMethod("getApplicationContext")
    R2.Target = R.RunMethod("getPackageManager")
   
Dim I As Intent
    I = R2.RunMethod2("getLaunchIntentForPackage", R.RunMethod("getPackageName"), "java.lang.String" )
    R.Target = I
    R.RunMethod2("addFlags",  67108864, "java.lang.int")
    StartActivity(I)
End Sub

this code will close all activities and restart the app
you can use it in Activity_Resume after checking if the app need to be restarted

 

[Beja]

Thanks KZero for your efforts..
(Activity_Resume ) of each activity? I have 5 activities in my project.
Also I don't want to restart the app. but when I restart it (anytime later) must restart from Main

 

[KZero]

Thanks KZero for your efforts..
(Activity_Resume ) of each activity? I have 5 activities in my project.
Also I don't want to restart the app. but when I restart it (anytime later) must restart from Main

-Add this sub to "Code Module"
-in the Code Module Process_Globals add

Dim aExit as boolean

-in your exit buttons add

CodeModule.aExit=True

-in all activities Resume event add

if CodeModule.aExit=True then
     CodeModule.RestartApp
     Return
End if

 

[Beja]

if CodeModule.aExit=True then CodeModule.RestartApp
Return

Sorry, will this restart the app if aExit is true? but I don't want to restart the app.. (if I correctly understood your code).

 

[KZero]

if CodeModule.aExit=True then CodeModule.RestartApp
Return

Sorry, will this restart the app if aExit is true? but I don't want to restart the app.. (if I correctly understood your code).

the user will exit the app normally using any exit button from any activity using

Sub btnExit

   CodeModule.aExit=True
   Activity.Finish
End sib

The process will be cached for sometime by the system

now if the user opened the app again the last Activity_Resume Event will be raised and execute this code

'put it in all Activties
Sub Activity_Resume
   if CodeModule.aExit=True then
     CodeModule.RestartApp
     Return
   End if
end sub
End if

and now the app will start from the Main activity and all saved data in other activities will be lost

 

[Beja]

thanks buddy, will try that
ya rab, insha'alla teshtaghil

 

[Beja]

Sub btnExit

   CodeModule.aExit=True
   Activity.Finish
End sib

one more question: Where will this aExit variable live? will it still be alive after the activity is killed? or should I store it somewhere in
text file or SQLite database

 

[KZero]

Sub btnExit

   CodeModule.aExit=True
   Activity.Finish
End sib

one more question: Where will this aExit variable live? will it still be alive after the activity is killed? or should I store it somewhere in
text file or SQLite database

it will be alive if the process still cached in memory, and if not the application will start normally because its already finished and its memory cleared

 

[Beja]

it will be alive if the process still cached in memory, and if not the application will start normally because its already finished and its memory cleared

Well, I can pray for the process to live long, but you can't guarantee because on exit you only finished one activity, not all.. and your code depends on the life of the aExit variable.

 

[KZero]

Well, I can pray for the process to live long, but you can't guarantee because on exit you only finished one activity, not all.. and your code depends on the life of the aExit variable.

don't worry about it
aExit variable declared in process_global so it will be alive as long as the app still alive

if aExit not alive it mean your app is already not in the memory and the code is not needed here, the app will start from the main activity normally

 

[Beja]

Alright! thanks for the detailed explanation..