Android Question [Solved] Shadow when flipping image with transparent background

[angel_]

When I flip an image (.png) with transparency, a shading appears in the transparency area. Is it possible to remove it?

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("Layout")
    
    Dim bmp As Bitmap = xui.LoadBitmapResize(File.DirAssets, "image1.png", ImageView1.Width, ImageView1.Height, True)
    ImageView1.SetBitmap(bmp)
End Sub

Sub Button1_Click
    Dim bmp As B4XBitmap = ImageView1.GetBitmap
    Dim bmc As BitmapCreatorEffects
    bmc.Initialize
    
    Dim bmc_flip As Bitmap = bmc.FlipHorizontal(bmp)
    
    ImageView2.SetBitmap(bmc_flip)
End Sub

 

[Erel]

Update to v1.40 and change the code to:

Sub Button1_Click
    Dim bmp As B4XBitmap = ImageView1.GetBitmap
    Dim bmc As BitmapCreatorEffects
    bmc.Initialize
    bmc.ScaleDownImages = False
    Dim bmc_flip As Bitmap = bmc.FlipHorizontal(bmp)
    XUIViewsUtils.SetBitmapAndFill(ImageView2, bmc_flip)
End Sub

Note that for this to work correctly in B4i, you need to load the image with the right size:

Sub Button1_Click
    Dim bmc As BitmapCreatorEffects
    bmc.Initialize
    bmc.ScaleDownImages = False
    Dim bmp As Bitmap = xui.LoadBitmapResize(File.DirAssets, "image1.png", ImageView1.Width * bmc.ImageScale, ImageView1.Height * bmc.ImageScale, True)
    Dim bmc_flip As Bitmap = bmc.FlipHorizontal(bmp)
    XUIViewsUtils.SetBitmapAndFill(ImageView2, bmc_flip)
End Sub

 

[angel_]

The background is still not transparent like the previous image

 

[Erel]

The original image is not 100% transparent:

Make it transparent.