Method drawVertices() didn't drawing anything on Android Canvas
I would like to draw triangles, and polygons

To draw a triangle I use this method that I found on internet :

    this.p.setStyle(Paint.Style.STROKE);
		int triangleColors[] = {
				this.p.getColor(), this.p.getColor(), this.p.getColor(),
				this.p.getColor(), this.p.getColor(), this.p.getColor()
			};
		
		float verts[] = {
				ptsFloat.get(0).x, ptsFloat.get(0).y,
				ptsFloat.get(1).x, ptsFloat.get(1).y,
				ptsFloat.get(2).x, ptsFloat.get(2).y
		};
		c.drawVertices(Canvas.VertexMode.TRIANGLES, 
		    verts.length, 
		    verts, 
		    0, 
		    null,
		    0,
		    triangleColors,
		    0,
		    null, 
		    0,
		    0,
		    this.p);
But the result is null, I've nothing drawn ...
Whereas, drawLine, drawCircle works perfectly well, have you any idea why this method doesn't work ? Futhermore, I don't have any traces in my logcat console for helping me !
Method drawVertices() didn't drawing anything on Android Canvas
===

I would like to draw triangles, and polygons

To draw a triangle I use this method that I found on internet :

    this.p.setStyle(Paint.Style.STROKE);
		int triangleColors[] = {
				this.p.getColor(), this.p.getColor(), this.p.getColor(),
				this.p.getColor(), this.p.getColor(), this.p.getColor()
			};
		
		float verts[] = {
				ptsFloat.get(0).x, ptsFloat.get(0).y,
				ptsFloat.get(1).x, ptsFloat.get(1).y,
				ptsFloat.get(2).x, ptsFloat.get(2).y
		};
		c.drawVertices(Canvas.VertexMode.TRIANGLES, 
		    verts.length, 
		    verts, 
		    0, 
		    null,
		    0,
		    triangleColors,
		    0,
		    null, 
		    0,
		    0,
		    this.p);
But the result is null, I've nothing drawn ...
Whereas, drawLine, drawCircle works perfectly well, have you any idea why this method doesn't work ? Futhermore, I don't have any traces in my logcat console for helping me !