CODEWITHSUNDEEP
androiddrawandroid-canvas
Robin
Robin

Reputation: 372

Why is drawPath not working?

I have this code for drawpath and nothing shows up and I cant figure out why.

//i move the path's starting point somewhere up here to a point.
//get center x and y are the centers of a picture. it works when i
//do drawline and store the different starting points 
//but i want it to look continuous not like a lot of different
//lines

path.lineTo(a.getCenterX(), a.getCenterY());
path.moveTo(a.getCenterX(), a.getCenterY());


p.setStrokeWidth(50);
p.setColor(Color.BLACK);
canvas.drawPath(path,p);

drawpath image

thanks in advance

Upvotes: 2

Views: 10059

Answers (3)

Brent Faust
Brent Faust

Reputation: 9309

A new Paint instance only fills paths.

To stroke paths, set the Paint style:

paint.setStyle(Paint.Style.STROKE);

If the background you're painting on is black, change the color, so you can see the paint:

paint.setColor(Color.RED);   // something other than the background color

Optional:

paint.setStrokeWidth(10);  // makes the line thicker

Upvotes: 14

Robin
Robin

Reputation: 372

  i had to add this to paint in order to make it work. dunno why.

mPaint.setDither(true);
mPaint.setColor(0xFFFFFF00);
mPaint.setStyle(Paint.Style.STROKE);    
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(3);

Upvotes: 6

Codeman
Codeman

Reputation: 12375

I think the best way to solve your problem is by changing the code as follows:

private final int strokeWidth = 50;

path.lineTo(a.getCenterX() + strokewidth / 2, a.getCenterY() + strokeWidth / 2);
path.moveTo(a.getCenterX(), a.getCenterY());

p.setStrokeWidth(strokeWidth);
p.setColor(Color.BLACK);
canvas.drawPath(path,p);

You may have to play with this, but this should basically overlap the lines so it looks like they are continuous.

You will likely have to put a switch statement in for which direction you are drawing in, but that should be fairly trivial.

I hope this helps!

Upvotes: 0

Related Questions