Android : paint parameter in Canvas.drawBitmap -

i use below code height , width of mobile screen , make random number in range , make image in random place of screen :

displaymetrics displaymetrics = new displaymetrics();     getwindowmanager().getdefaultdisplay().getmetrics(displaymetrics);     int height = displaymetrics.heightpixels;     int width = displaymetrics.widthpixels;      int x = (int) (math.random() * height);     int y = (int) (math.random() * width);      canvas.drawbitmap(r.drawable.sizem, x, y, paint); 

but dont no how can fill paint parameter in last line :

canvas.drawbitmap(r.drawable.sizem, x, y, paint); 

check drawbitmap

paint paint used draw bitmap (may null)

try canvas.drawbitmap(r.drawable.sizem, x, y, null);