Android Question Help with timer

stevel05

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• May 21, 2014

• #2

You would initialize and enable the timer to your required interval when the app starts. But if you want to start and end at a specific time each day, you should look at using a service which you can start at a specific time using StartServiceAt

 

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Cableguy

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• May 21, 2014

• #3

You should test the time value before enabling the timer, like

If time <16h00 and time >10h00 then timer.enabled=true else timer.enabled=false

This is just a pointer, additional logic is required in order to not re-fire the timer

 

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apty

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• May 22, 2014

• #4

How do you check if time is greater than? i tried the following but it gives me an error =>java.lang.NumberFormatException:invalid double: "07:38"

B4X:

lblStartSet.Text=txtStartTime.Text
    lblStopSet.Text=txtEndTime.Text

timer1.Initialize("Timer1", 5000)
Dim timenow,starttime As  Long
  starttime=DateTime.TimeParse(lblStartSet.Text)
  DateTime.TimeFormat="HH:mm"
  timenow=DateTime.Time(DateTime.Now)

  If starttime>=timenow Then
  timer1.Enabled = True
  End If

 

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DonManfred

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• May 22, 2014

• #5

you are comparing a datetimevalue with a string (not a datetimevalue)...

 

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apty

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• May 22, 2014

• #6

How do i compare the dates? please help with sample code

 

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DonManfred

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• May 22, 2014

• #7

apty said:

How do i compare the dates? please help with sample code

Click to expand...

no, i wont. You are here to learn.

as i wrote: you are comparing a datetimevalue (starttime) with a string (timenow)(not a datetimevalue)...
If starttime>=timenow Then

Think over what you have made different on the two and you should be able to find out the error you made...

timenow=DateTime.Now

 

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apty

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• May 22, 2014

• #8

i thought

B4X:

timenow=DateTime.Time(DateTime.Now)

is a datetime...

 

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Erel

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• May 22, 2014

• #9

You must use StartServiceAt for that (or add a foreground service).

DateTime.Time convert the ticks value (long number = number of milliseconds since 1/1/1970 00:00 GMT) to a string.

 

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DonManfred

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• May 22, 2014

• #10

No, it´s a string
DateTime.Time results a stringrepresentation of an datetime-value

 

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apty

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• May 22, 2014

• #11

i have tried with services but the service doesn't stop even if i call StopService("")

 

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stevel05

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• May 22, 2014

• #12

Can you post an example that is not working?

 

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