Android: Draw a view on canvas

Question

I have a view inflated, I can draw it on canvas, but can't seem to position it properly.

LayoutInflater li = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = li.inflate(R.layout.fix_this_recommendation, null);
v.measure(MeasureSpec.getSize(v.getMeasuredWidth()), MeasureSpec.getSize(v.getMeasuredHeight()));
v.layout(400, 400, 400, 400);
v.draw(canvas);

But the view is always at the top left corner. Anyone know why?

Solution 1

Each View draws its contents within its own coordinate system, with (0, 0) at the top-left. If you want it to appear elsewhere, you can set a new transformation matrix on your Canvas.

Solution 2

Solution is to translate canvas:

canvas.save();
canvas.translate(left, top);            
view.draw(canvas);
canvas.restore();

Solution 3

because the coordinate system used in the Canvas starts from the top left corner instead of doing that define your Custom View and override the onDraw() method and inside it position your view as you like

Comments

[Johnny]

This is what I am doing, the code above is inside the onDraw() function. Am I missing something?

[Johnny]

That make sense now, the issue was the subviews are not drawing properly. So what does "layout" do then?

[Peterdk]

Is there any info on how to exactly do this? I am facing the same problem.