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You should read the documentation for Canvas. A Canvas is an object that draws on other views or (mutable) bitmaps. When the canvas is initialized and set to draw on a view, a new mutable bitmap is created for that view background, the current view's background is copied to the new bitmap and the ca

I hope someone might find it useful. Happy coding.
link: As I said, there would probably be better ways and I stood corrected. Indeed, your code is much simpler, without the need of JavaObject. :) I will u

The Layout Designer is built to make it easy to design layouts that will automatically fit different screen sizes. What you call the "canvas" is a notional screen area. One normally designs a layout in which the views are "anchored" to the screen edges; their sizes are specified in dips (device inde

No. This is how Canvas works in JavaFX. It is a separate node.
link: Try my understanding: In B4J B4XCanvas is a view, so xCanvas.Initialize(xView) will create a canvas view then add it to pane, which here is the xView
link: As PaulMeuris mentiones, the problem is that in B4J a Canvas is a View on its own. I have modified your Test routine like below to log the xView type.
link: No, it's because you load the layout two times. Remove the declarations of the panes and it will still work.

In B4J a 'standard' Canvas is a node (view in B4A) like other user interface nodes and can be added in the Designer. In B4A and B4i a Canvas is a Drawing object but not a view. and cannot be added in the Designer. B4XCavas works the dame way, also in B4J, you need to declare it in the code and assig
link: From what I gather a Canvas can be added with the Designer if your declaring it as a Canvas (or B4XView. ?) It would appear a B4XCanvas cannot be adde
link: Trying to create a simple B4Xpages UI program in B4J. Steps... Create a new project using the b4xpages template. Open the internal designer and add a

Canvas is not a view (like in B4J). It is an object that draws over other views.
link: Thanks Erel. If I wanted to create panels with gradient fills in the designer, would the best way be to create a class that added a canvas to the pane
link: Just wondering if it is possible to add the Canvas as a view to the designer Regards Brian

Mr. Schoeman we did... In B4A, Canvas is different than B4J Canvas is not a view (like in B4J). It is an object that draws over other views.
link: Mr Schoeman. Really the values in the byte array are the key, this must be the solution. I have already used canvas in B4A to draw other code. The byt

PDFView2 is not a view you can use on a Canvas. You can export any page to an Bitmap and draw this Bitmap on a canvas and then draw lines on this.
link: Hello, Thank you for your quick reply. The PDF contains only one page. How do I export this page to a bitmap? Best regards, Douwe
link: Hello, I'm using PDFView2 (PDFium) to load and show a PDF file. I want to draw lines on it by using a canvas but this doesn't work. Canvas1.In

You could use a ScrollView (B4i), a ScrollView2D (B4A), a ScrollPane (B4J) and link the Canvas to their internal Panel/Pane.
link: I try immediatly Thanks

A canvas, accelerated or not, is a surface to show drawings. So what's the usefulness to hide it when you draw onto it? At worst, mask it behind a panel.
link: I can't see the relationship with your previous question, but yes. There's no tweening animator included. There's none with the Canvas too.
link: Thanks. Is it possible to draw on the accelerated canvas without the canvas being visible to the user? You can create a canvas and set it invisible,
link: As I said, it's just a copy/paste and you replace the canvasJO part to draw the line by: Line1.CreateLine(50%x, 50%y, False) Line1.Paint = paintJO AC

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