Save image to file

macerau

Member

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Longtime User

• Oct 16, 2012

• #1

Hi Erel,
From what I read a lot in the documentation and realized all looking for an answer that I'm sure is very simple.
a routine that writes image to a file from ImageView.
I have no doubts that this can help many users
Please see if you can make this routine

B4X:

....
SavePhoto (Photo.bitmap,"MyPhoto.png")

....


Sub SavePhoto (Pt As Bitmap,NewFile As String)
?
?
End Sub

 

Last edited by a moderator: Oct 16, 2012

Erel

B4X founder

Staff member

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Longtime User

• Oct 16, 2012

• #2

See Bitmap.WriteToStream documentation:
Basic4android Search: bitmap.writetostream

 

macerau

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Longtime User

• Oct 18, 2012

• #3

B4X:

....
SavePhoto (Photo.bitmap,"MyPhoto.png")

....


Sub SavePhoto (Pt As Bitmap,NewFile As String)
 Dim Out As OutputStream 
 Out = File.OpenOutput(File.DirRootExternal, NewFile, False)
 Pt.WriteToStream(out, 100, "PNG") 
 Out.Close
End Sub

Very Well This work!
had tried this routine several times, and it did not work because I was used File.DirAssets.
It is not possible to write in File.DirAssets?

My satisfaction of both the program and the support is 10! Keep it up!

 

NJDude

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Longtime User

• Oct 18, 2012

• #4

It is not possible to write in File.DirAssets?

Click to expand...

No it is not, File.dirAssets is READ ONLY.

 

kanaida

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• Oct 20, 2012

• #5

File.dir assets Is a pretend folder that really just unzips and let's you read files you include. file.dirinternal is always there' its phone memory. Direxternal may or may not exist. Eg, sdcard.