B4A Library PageTurnView library providing a page turn animation

S

Smee

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B4X: 
Sub PageTurner_GetBitmap(Width As Int, Height As Int, Page As Int) As Bitmap 'Called when the Bitmap for the given page number is required. Return the Bitmap
   Dim bmp As Bitmap
   Dim cnv As Canvas
   
   bmp.InitializeMutable(Width, Height)
   cnv.Initialize2(bmp)
   
   FilenameOnly=PicFileName(Page)
   Filenamex= "/cats/" & DirName & PicFileName(Page)

   Log(Page & "/" & MaxRecs & " " & Filenamex)

   Try
      b.Initialize(File.DirInternal,Filenamex)
   Catch
      b.Initialize(File.DirInternal,"/cats/blank.jpg")
   End Try
   
   brect.Initialize(0,0,b.Width, b.Height)
   cnv.DrawBitmap(b, Null, brect)
   PageNumber=page
           Return bmp

End Sub

As far as i can tell i am feeding the next page in the sequence each time the user makes a turn. But as i say if the screen is touched the page is advanced by one but the screen is showing the previous page becuse the user has not completed the entire turn. Therefore my PageNumber=page becomes incorrect because in that instance PageNumber=page-1.
In other words my links will point to Page 1 but the screen shows page 0.

A synchronisation error
 

agraham

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You are making the erroneous assumption that the page requested is the page displayed. Surely you don't need to track the page number, just give it the page it requests. If the user subsequently makes a decision to react to something he sees on the page just fetch CurrentPage in whatever event he causes to be raised and carry on from there.
 
S

Smee

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agraham said:
You are making the erroneous assumption that the page requested is the page displayed. Surely you don't need to track the page number, just give it the page it requests.
Click to expand...

Yes I do

If the user subsequently makes a decision to react to something he sees on the page just fetch CurrentPage in whatever event he causes to be raised and carry on from there.
Click to expand...

Sometimes i dont see the forest for the trees

I will modify my code but i think that will do the trick. I am using the pagename to track but i will modify

Thanks Andrew.

Hopefully that will work
 
S

Smee

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:sign0060::sign0060:

Yep that did it. Now on to the next hurdle

Thanks Andrew
 

karmba_a

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But I mean The direction of the book from right to left

Browse its pages starting from the left how to make him start from the right.

Please help me and thank you
 
S

Smee

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karmba_a said:
But I mean The direction of the book from right to left

Browse its pages starting from the left how to make him start from the right.
Click to expand...


Just start the pages from the last page. i.e if you have 11 pages then start at page 10

PageTurner.CurrentPage=10 then you will move back 1 page at a time

Hope this helps
 

karmba_a

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Smee said:
Just start the pages from the last page. i.e if you have 11 pages then start at page 10

PageTurner.CurrentPage=10 then you will move back 1 page at a time

Hope this helps
Click to expand...

thank you
 

karmba_a

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Click when the right or left of the page it changes the page number with me and I do not want to change only if the turned the page.
 
S

Smee

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Read through this whole thread again. ifr i understand you properly you are making the same mistake i was making

Quote:Originally Posted by agraham
You are making the erroneous assumption that the page requested is the page displayed. Surely you don't need to track the page number, just give it the page it requests.

Yes I do

Quote:If the user subsequently makes a decision to react to something he sees on the page just fetch CurrentPage in whatever event he causes to be raised and carry on from there.
 

Rusty

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Page Turn View

This is wonderful.
Is there a way to do this with views on the pages?
Thanks,
 
H

hackhack

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Small request, couldn't you write the version changes in the first post? (or if not, then link to the messages?)
 
S

susu

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Agraham, I tried to read a text file into text string

text = File.GetText(File.DirAssets, "content.txt")
Click to expand...

but I got "java.io.IOException" error.


How can I fix it?
Thank you so much.
 
S

susu

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I found out that "Data exceeds" error. Maybe I need to "trim" the text file first?
 
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