Android Question Write bitmap to file

Discussion in 'Android Questions' started by davelt99, Mar 26, 2015.

  1. davelt99

    davelt99 Member Licensed User

    After taking a picture in portrait mode with cameraEx the image is always in landscape mode.

    I'm showing a preview with:

    Dim imgPreview As ImageView
    imgPreview.Bitmap=RotateImage(LoadBitmap(File.DirRootExternal, sPicName),90)

    which corrects the orientation of the jpg file.

    I can't figure out how to save the corrected imgView to a file for uploading.

    Thanks in advance,
  2. DonManfred

    DonManfred Expert Licensed User

    Have you trie dto use the forum search? I think no. Fault!
  3. davelt99

    davelt99 Member Licensed User

    Yes, but I need to copy the rotated imgView to a file. The imgView is not yet a file. Not sure how this might work,
  4. DonManfred

    DonManfred Expert Licensed User

    The first link in the search i posted is this. Here you can see how to write a Bitmap to a file.
  5. davelt99

    davelt99 Member Licensed User

    I Think that I've been confusing an ImageView bitmap with a bitmap.

    ' saving the camera picture taken to a file

    Dim out As OutputStream
    out = File.OpenOutput(File.DirRootExternal, "myImage.jpg", False)
    out.WriteBytes(Data, 0, Data.Length)

    dim imgPreview as ImageView
    imgPreview.Bitmap=RotateImage(LoadBitmap(File.DirRootExternal, "myImage.jpg"),90)

    ' now this rotated image, imgPreview.Bitmap, I would like to save to the original filename - "myImage.jpg"

    Sorry for the confusion.
  6. davelt99

    davelt99 Member Licensed User

    I found It!!

    Had to store ImageView.Bitmap to a Bitmap first and then write to the outputstream.
    Dim b As Bitmap
    b = imgPreview.Bitmap

    Dim Out As OutputStream
    Out = File.OpenOutput(File.DirRootExternal, sPicName, False)
    b.WriteToStream(Out, 100, "JPEG")

    Thank you for your assistance - I'll try to search more diligently in the future.
    konradwalsh likes this.
  7. DonManfred

    DonManfred Expert Licensed User

    Something like
    'save image to file
        Dim out As OutputStream
        out = 
    File.OpenOutput(File.DirRootExternal, "myImage_rotaged.jpg"False)
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