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......
Projection proj = mapView.getProjection();
float[] pts = new float[gps.size()*2];
for(int i=0;i<gps.size();i++)
{
proj.toPixels(gps.get(i), out);
pts[2*i] = out.x;
pts[2*i+1] = out.y;
}
paint.setAntiAlias(true);
paint.setStrokeWidth(5);
paint.setAlpha(120);
paint.setColor(Color.BLUE);
canvas.drawLines(pts, paint);
}
......