Android Question Advise - Best way to stop...

jmoeller · Aug 18, 2018

I need help with a simple app I am writing, I need to play a youtube video (have got that working) but only for a set period of time. What is the best way to accomplish this...

Main Module (leaving the basics out)

Activity.LoadLayout("MainScreen")

YouTube.StartVideo("AI?X?X?X?X?X??X?X?X?X??X?X?X", _
Main.VidID, Main.tStart*1000, True, True)

The above code plays the video (VidID) and starts at tStart. All is working there. However, the YouTube functionality doesn't appear to have a stop, so I need it to stop at tEnd (say 10 seconds).

What is the best way to accomplish this? I suspect I need a timer to tEnd that will kill the YouTube. Please provide code (not just overview) as I am not too familiar with B4A.

Thanks
Jonathan

Erel · Aug 19, 2018

Please use [code]code here...[/code] tags when posting code.

It is not so simple as the YouTube is played in a different activity. Call a sub in the starter service that looks like this:

B4X:

Sub StartMainAfter10Seconds
 Sleep(10000)
 StartActivity(Main)
End Sub

jmoeller · Aug 19, 2018

I have created the sub in the Starter. But I am having trouble finding the right syntax to call it.

Erel said:
Please use [code]code here...[/code] tags when posting code.

It is not so simple as the YouTube is played in a different activity. Call a sub in the starter service that looks like this:

B4X:

Sub StartMainAfter10Seconds Sleep(10000) StartActivity(Main) End Sub

Erel · Aug 20, 2018

B4X:

CallSub(Starter, "StartMainAfter10Seconds")

jmoeller · Sep 12, 2018

Sorry, still struggling. I took out all of the unnecessary code and have attached a simple app that should play a Youtube video for a few seconds in the background and stop. But I still don't have the code right. NOTE: I am using B4A 5.8.

Thanks.

Erel · Sep 12, 2018

You should never use code like this:

B4X:

Sub Wait(Seconds As Int)
   Dim Ti As Long
   Ti = DateTime.Now + (Seconds * 1000)
   Do While DateTime.Now < Ti
      DoEvents
   Loop
End Sub

Don't use DoEvents at all.

The code I posted uses Sleep. Sleep is not similar to the Wait code you implemented. It doesn't hold the main thread (watch the resumable subs video tutorial for more information). You will need to replace it with a timer.

jmoeller · Sep 12, 2018

So, just to be clear, sleep is available in B4a v5.8?

Erel · Sep 12, 2018

No. It was added in B4A v7.0. You should use a timer instead.

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