iOS Question Camera.TakePicture Closing Page

tariqyounis

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Longtime User
I am using b4xpages and when I execute the procedure to take a picture and save it to an imageview, The function b4xpages.closepage(me) will not work and I can't exit the page. Otherwise if I did not use the function camera.takepicture the page will close normally
please advice.
 
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tariqyounis

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Erel said:
Check this example: https://www.b4x.com/android/forum/threads/b4x-b4xpages-intent-based-camera.120721/

Can you reproduce this issue with that example? Please make the necessary changes and upload the project.
Click to expand...
I used the same project, but I added one button (button2) to try to close the page. if I press button2 first I got this log "First page cannot be closed" which means that button2 is working fine, but if I press button2 after I take the picture, no action is triggered.
close page: 
Sub Button2_Click
    B4XPages.ClosePage(Me)
End Sub
 
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tariqyounis

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Erel said:
You can only close the top page and you can only close the top page if there are other pages in the stack. In this case there is a single page.
Click to expand...
you are absolutely right, but even if you have other pages it will not work. I was checking the log when it says "First page cannot be closed", I know that button2 is working, but after taking the picture, and I press on button2 there is no action in the log. This means that the program is running over the code b4xpages.closepage(me), but not executing it.
 
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Semen Matusovskiy

Well-Known Member
Licensed User
It looks that exactly Camera.TakePicture destroys B4XPage engine.
I reduced B4XMainPage to followng
B4X: 
Sub Class_Globals
    Private Root As B4XView
    Private Camera As Camera
End Sub

Public Sub Initialize
End Sub

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
   
    Sleep (100)   
    Camera.Initialize("Camera", B4XPages.GetNativeParent(Me))
    Log ("Before " & B4XPages.GetManager.GetTopPage.B4XPage)
    Camera.TakePicture
    Sleep (5000)
    Log ("After " & B4XPages.GetManager.GetTopPage.B4XPage)
End Sub

'After' is null in any case.
 
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