Android Question Notification Service

ivan.tellez

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• Mar 20, 2016

• #2

SternFaun said:

how can I create a notification

Click to expand...

Lots of examples in the forum (also some libs). Just use the search function.

 

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Erel

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• Mar 20, 2016

• #3

Start with this tutorial: https://www.b4x.com/android/forum/threads/7542/#content

 

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S

SternFaun

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• Mar 25, 2016

• #4

Hello, thanks for your answers. I finished my app, but I have a last problem:

The Activity (it is only one) puts a date in a Public process global ("ServiceDatum").

B4X:

Sub Process_Globals

   Private n As Notification
   Public ServiceDatum2 As Long
End Sub

Sub Service_Create

End Sub

Sub Service_Start (StartingIntent As Intent)

StartServiceAt(Me, DateTime.Now + 10 * DateTime.TicksPerSecond, True)  

            ServiceDatum2 = Main.ServiceDatum
            If ServiceDatum2 <= DateTime.Now Then

            n.Initialize
            n.Icon = "icon"

            n.SetInfo("Notizen","Notiz zu erledigen",Main)
            n.AutoCancel = True
            n.Notify(1)
            n.Light = True

    Else
    End If

End Sub

I dont want the Service to start when I start the activity or when the activity is open. I tried only do "if IsPaused(Main)", but this didnt word.

Second problem is, that if I press the notification the activity does not open (as defined in "n.SetInfo("Notizen","Notiz zu erledigen",Main)"), it appears just a empty black screen with the title.

Any solutions?

 

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Erel

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• Mar 27, 2016

• #5

I don't understand your code. You need to call StartServiceAt from your activity if you want to start the service at the scheduled time.

 

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S

SternFaun

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• Mar 27, 2016

• #6

Thanks for your answer.The app should work like a calendar. the app writes a date in a file. the service should check all 10 minutes if the date written in the file is the actual date (datetick in file <= dateutils.now). this means the service has to run all ten minutes (for example) also if the activity isnt started the whole time.

 

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Erel

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• Mar 28, 2016

• #7

You don't need to start the service every 10 minutes.

[B4X] Calculating the next scheduled time

 

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S

SternFaun

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• Mar 28, 2016

• #8

Ok. That is a good thing. but if i say start it every 12h, isnt it the same?

Do you have an idea why the app does not open when i click the notification? where is the entry point in the activiy after clicking the notification, does it always start in the activity create sub?

 

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Erel

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• Mar 28, 2016

• #9

It is hard to say without seeing the complete code. The code you posted assumes that the process will not be killed. This is a wrong assumption. You should save any important information in a file.

SternFaun said:

where is the entry point in the activiy after clicking the notification, does it always start in the activity create sub?

Click to expand...

If the activity was destroyed then Activity_Create will be called. Activity_Resume is always called.

 

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S

SternFaun

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• Mar 29, 2016

• #10

Ok. Thanks very much for your help! Everything is clear.

 

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