Android Code Snippet [B4X] Rotate Bitmap

Author: Erel

Sub RotateBitmap (bmp As B4XBitmap, Degrees As Float) As B4XBitmap
   Dim cvs As B4XCanvas
   Dim panel As B4XView = xui.CreatePanel("")
   panel.SetLayoutAnimated(0, 0, 0, bmp.Width, bmp.Height)
   cvs.Initialize(panel)
   cvs.DrawBitmapRotated(bmp, cvs.TargetRect, Degrees)
   cvs.Invalidate
   Dim b As B4XBitmap = cvs.CreateBitmap
   cvs.Release
   Return b
End Sub

 

[TILogistic]

??

Rotate png image

Hi, the question is: how to rotate a png image at any degree from the assests folder ? Thanks

www.b4x.com

 

[LucaMs]

??

Rotate png image

Hi, the question is: how to rotate a png image at any degree from the assests folder ? Thanks

www.b4x.com

Yes, I found it there and I like it best placed here

 

[Erel]

Why not use B4XBitmap.Rotate ?

 

[LucaMs]

Why not use B4XBitmap.Rotate ?

Wait a moment...

because I immediately searched the site instead of looking (assuming) that that method existed.

I also tried to explain that it was a quick test, so much so that I didn't even look at the downloaded png.

Erel, then delete this snippet, since this method exists.

 

[Erel]

Better to keep this thread since B4XBitmap.Rotate can only rotate in intervals of 90 degrees in B4J. No such limitation in B4i and B4A.