Android Question Activity WindowFocusChanged event.

[Tom_707]

Hi,

I'm trying to figure out the Activity WindowFocusChanged event but there doesn't seem to be much in either the B4X or Android documentation.

When you create an Activity, you add Views to it, or load a Layout. Which part of the Activity is the Window? Is it the entire screen that contains all Views?
When does the WindowFocusChanged event fire? Is it when you swap to another App that is currently running on the Android device?

Any help will be appreciated.

 

[sfsameer]

if i may ask, what is your purpose of this event? why do you need it ?

based on your question and the details provided are very little, but in android and in B4A there is :

-----------------------------------------------------------
in b4a
Sub Activity_Pause (UserClosed As Boolean)

End Sub

*it fires when the activity losses the focus (Paused) + check if the user has closed the activity

In Android :
public void onPause() {

}

-----------------------------------------------------------
-----------------------------------------------------------
in b4a
Sub Activity_Resume

End Sub

*it fires when the activity regains the focus (Resumed)

In android :
public void onResume() {

}

-----------------------------------------------------------
hope that helps

 

[Tom_707]

I don't need this event as yet, I'm just learning B4A and trying to figure out what's what.
Thanks for the reply.
Now I just need to figure out what a Window is.

 

[sfsameer]

Now I just need to figure out what a Window is.

in android, the window is called an activity.

B4A has a great learning Content:

B4X Programming Learning Resources

Resources for B4X programming language and tools

www.b4x.com

 

[Erel]

You don't need this event. It is used in some rare cases. For example to enable immersive mode.

Tip: don't waste too much time with learning the activities events and life cycle. Start with B4XPages. Everything will be simpler.

 

[Tom_707]

I'll have a look at the B4XPages tutorial. Thanks Erel.

 

[jeronimovilar]

How can i to set focus again?
If the user click the home button, i´d like to return my app. is it possible?

 

[DonManfred]

If the user click the home button, i´d like to return my app. is it possible?

is the user press the home button you have to respect this wish. I don´t think that you can get back to your app if you do not use KIOSK-Mode.

Device Owner / TaskLock / Kiosk apps 2017

Starting from Android 5 (API 21) there is better support for kiosk applications. Kiosk applications = applications that the user cannot exit from. As you can see in this screenshot, the home button and recent apps button are missing. The top notifications drawer is also inaccessible. This...

www.b4x.com

 

[jeronimovilar]

Its a internal App (intranet) and any users dont know how to come back the app

 

[DonManfred]

Its a internal App (intranet) and any users dont know how to come back the app

tell them where to find the icon to start it again

 

[jeronimovilar]

To restart i need choice any parameters. port, IP....

 

[DonManfred]

You should START A NEW THREAD for YOUR issue.
It seems to be a different one than the one in #1.
I´m out here.