[android-developers] what's the unit of "setStrokeWidth()" (dp or pixel)

Hi,

I need draw a "dotted line" in my app. I use codes below:
Paint paint = new Paint();
paint.setColor(0xff00b900);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(1);
paint.setPathEffect(new DashPathEffect(new float[] {5, 5, 5,
5}, 1));
canvas.drawLine(0, 50, 160, 50, paint);

Now I'd like know the unit of parameter of "setStrokeWidth". Is it dp
or pixel? If the unit is "dp", will the line seems same width in
devices with different DPI?
I test it on emulator and my phone, it seems that "x,y" coordinate of
"drawLine" is "dp".

Thanks

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