Android Question Wait For error

Almora · Feb 8, 2020

B4X:

Sub vvvit5_Error(MEDIA_ERROR As Int) As Boolean

    Log("Error: " & MEDIA_ERROR)
    
    Wait For (xui.MsgboxAsync("error","info")) Msgbox_Result (Result As Int)
    
    For Each v As View In Activity.GetAllViewsRecursive
        If v.Tag Is B4XLoadingIndicator And v.Visible = True Then
            Dim x As B4XLoadingIndicator = v.Tag
            x.Hide
        End If
    Next
    
    Activity.Finish
    StartActivity(main)
    
    Return True
    
End Sub

Resumable subs return type must be ResumableSub (or none).

I get this error.
what should I do..

Computersmith64 · Feb 8, 2020

You should make the return type of the sub ResumableSub. (Btw, the error has nothing to do with MsgboxAsync)

B4X:

Sub vvvit5_Error(MEDIA_ERROR As Int) As ResumableSub

    Log("Error: " & MEDIA_ERROR)
   
    Wait For (xui.MsgboxAsync("error","info")) Msgbox_Result (Result As Int)
   
    For Each v As View In Activity.GetAllViewsRecursive
        If v.Tag Is B4XLoadingIndicator And v.Visible = True Then
            Dim x As B4XLoadingIndicator = v.Tag
            x.Hide
        End If
    Next
   
    Activity.Finish
    StartActivity(main)
   
    Return True
   
End Sub

https://www.b4x.com/android/forum/threads/b4x-resumable-subs-that-return-values-resumablesub.82670/

- Colin.

Almora · Feb 8, 2020

I read this topic.
how to apply. I could not.
Would you give an example?...

Computersmith64 · Feb 8, 2020

Almora said:
I read this topic.
how to apply. I could not.
Would you give an example?...

I did give an example in my reply. I changed the sub return type from Boolean to ResumableSub. Does that not work?

- Colin.

Almora · Feb 8, 2020

I've tried
not working.

Error: 1
java.lang.ClassCastException: anywheresoftware.b4a.keywords.Common$ResumableSubWrapper cannot be cast to java.lang.Boolean
at com.tillekesoft.vitamio5.VideoView$3.onError(VideoView.java:332)
at io.vov.vitamio.widget.VideoView$5.onError(VideoView.java:223)
at io.vov.vitamio.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:1765)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

Computersmith64 · Feb 8, 2020

You need to change your call to something like:

B4X:

Wait for (vvvit5_Error(errorCode)) Complete (ret As Boolean)

- Colin.

Peter Simpson · Feb 8, 2020

Almora said:
I've tried
not working.

Please post in full the relevant code sub routines, as all this guessing is getting both yourself and @Computersmith64 absolutely nowhere very slowly...

Almora · Feb 9, 2020

B4X:

Sub vvvit5_Error(MEDIA_ERROR As Int) As Boolean
'...
End Sub

wait for .... error when adding

Resumable subs return type must be ResumableSub (or none).

Computersmith64 · Feb 9, 2020

Almora said:
View attachment 88432

B4X:

Sub vvvit5_Error(MEDIA_ERROR As Int) As Boolean '... End Sub

wait for .... error when adding

See post #6...

- Colin.

Almora · Feb 9, 2020

Thank you for your help.
but
I couldn't do it with the method you specified.

such a method works. The message is waiting for user confirmation and does not give an error.

B4X:

Sub vvvit5_Error(MEDIA_ERROR As Int) As Boolean

    Log("Error: " & MEDIA_ERROR)
    
    videowait
    
    For Each v As View In Activity.GetAllViewsRecursive
        If v.Tag Is B4XLoadingIndicator And v.Visible = True Then
            Dim x As B4XLoadingIndicator = v.Tag
            x.Hide
        End If
    Next
      
    Return True
    
End Sub



Sub videowait

    Wait For (xui.MsgboxAsync("error","info")) Msgbox_Result (Result As Int)
    Activity.Finish
    StartActivity(main)

End Sub

Computersmith64 · Feb 9, 2020

Almora said:
Thank you for your help.
but
I couldn't do it with the method you specified.

Well I don't know what you were doing, but the code below works as expected. The vvvit5_Error sub is called, the msgbox is displayed & waits for input, then when the OK button is tapped, the vvvit_Error sub resumes, then returns to the line after the original call in Activity_Resume:

B4X:

Sub Activity_Resume
    Wait for (vvvit5_Error(1)) Complete (ret As Boolean)
    Log("Returned from vvvit5_Error")
End Sub

Sub vvvit5_Error(MEDIA_ERROR As Int) As ResumableSub

    Private xui As XUI
    Log("Error: " & MEDIA_ERROR)
   
    Log("Waiting for MsgboxAsync result")
    Wait For (xui.MsgboxAsync("error","info")) Msgbox_Result (Result As Int)
    
    Log("Finished waiting for MsgboxAsync result")  
    Return True
   
End Sub

- Colin.

Almora · Feb 9, 2020

I tried your code.
gives this error.

Error: 1
Waiting for MsgboxAsync result
java.lang.ClassCastException: anywheresoftware.b4a.keywords.Common$ResumableSubWrapper cannot be cast to java.lang.Boolean
at com.tillekesoft.vitamio5.VideoView$3.onError(VideoView.java:332)
at io.vov.vitamio.widget.VideoView$5.onError(VideoView.java:223)
at io.vov.vitamio.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:1765)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

B4X:

Sub vvvit5_Error(MEDIA_ERROR As Int) As Boolean
'...
End Sub

I think this has to be ..

Erel · Feb 9, 2020

It is impossible to help you like this.

The solution was give in post #2.

We don't know which code you are running and it looks like you haven't carefully read the tutorial: https://www.b4x.com/android/forum/threads/b4x-resumable-subs-that-return-values-resumablesub.82670/

For further discussion please start a new thread and provide all the relevant information.

Android Question Wait For error

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