iOS draw circles, draw lines

UIView:

-(void) DrawRect: (cgrect) rect {[Super Drawrect:rect];    CGRect frame = CGRectMake (50, 100, 100, 100);    /* Draw filled Circle */cgcontextref context = Uigraphicsgetcurrentcontext ();    [[Uicolor Whitecolor] set];        Cgcontextfillrect (context, rect);    Cgcontextaddellipseinrect (context, frame);    [[Uicolor Orangecolor] set];        Cgcontextfillpath (context);    /* Border Circle */cgcontextsetrgbstrokecolor (context, 255/255.0, 106/255.0, 0/255.0, 1);    Cgcontextsetlinewidth (context, 5);    Cgcontextaddarc (context, 0, 2*M_PI, 0);    Cgcontextdrawpath (context, kcgpathstroke);    /* Draw Straight line */CGRect markframe = CGRectMake (100, 250, 200, 200);    [[Uicolor Orangecolor] set];    Cgcontextsetlinewidth (context, 4);    Cgpoint Points[5];    Points[0] = Cgpointmake (MARKFRAME.ORIGIN.X,MARKFRAME.ORIGIN.Y);    POINTS[1] = Cgpointmake (MARKFRAME.ORIGIN.X+MARKFRAME.SIZE.WIDTH/4, MARKFRAME.ORIGIN.Y+MARKFRAME.SIZE.HEIGHT/2); POINTS[2] = Cgpointmake (markframe.origin.x+markframe.sIZE.WIDTH/2, markframe.origin.y+5);    POINTS[3] = Cgpointmake (MARKFRAME.ORIGIN.X+MARKFRAME.SIZE.WIDTH/4*3,MARKFRAME.ORIGIN.Y+MARKFRAME.SIZE.HEIGHT/2);        POINTS[4] = Cgpointmake (Markframe.origin.x+markframe.size.width, MARKFRAME.ORIGIN.Y);    Cgcontextaddlines (context, points, 5);    Cgcontextdrawpath (context, kcgpathstroke);    Border Circle Cgcontextsetlinewidth (context, 5); Cgcontextaddarc (context, MARKFRAME.ORIGIN.X+MARKFRAME.SIZE.WIDTH/2, MARKFRAME.ORIGIN.Y+MARKFRAME.SIZE.HEIGHT/2,    Markframe.size.height/2-2, 0, 2*M_PI, 0);        Cgcontextdrawpath (context, kcgpathstroke);        /* curve */[[Uicolor Redcolor] set];    Cgcontextsetlinewidth (context, 4.0); Cgcontextsetstrokecolorwithcolor (context, [Uicolor Orangecolor].    Cgcolor);    Cgcontextmovetopoint (context, 300, 370);    Cgcontextaddcurvetopoint (context, 193, 320, 100, 370, 100, 370); Cgcontextstrokepath (context);}

Uiviewcontroller:

#import "DrawViewController.h" @interface Drawviewcontroller () @end @implementation drawviewcontroller-(void)    viewdidload {[Super viewdidload];    /* * Draw a dashed circle */Cashapelayer *dotteline = [Cashapelayer layer];    Cgmutablepathref Dottepath = cgpathcreatemutable ();    Dotteline.linewidth = 2.0f; Dotteline.strokecolor = [Uicolor Orangecolor].    Cgcolor; Dotteline.fillcolor = [Uicolor Clearcolor].    Cgcolor;    Cgpathaddellipseinrect (Dottepath, Nil, CGRectMake (50.0f, 50.0f, 200.0f, 200.0f));    Dotteline.path = Dottepath;    Nsarray *arr = [[Nsarray alloc] Initwithobjects:[nsnumber numberwithint:10],[nsnumber Numberwithint:5], nil];    Dotteline.linedashphase = 1.0;    Dotteline.linedashpattern = arr;    Cgpathrelease (Dottepath);        [Self.view.layer Addsublayer:dotteline];    /* * Draw solid line round */cashapelayer *solidline = [Cashapelayer layer];    Cgmutablepathref Solidpath = cgpathcreatemutable ();    Solidline.linewidth = 2.0f; Solidline.strokecolor = [Uicolor orAngecolor].    Cgcolor; Solidline.fillcolor = [Uicolor Clearcolor].    Cgcolor;    Cgpathaddellipseinrect (Solidpath, Nil, CGRectMake (50.0f, 300.0f, 200.0f, 200.0f));    Solidline.path = Solidpath;    Cgpathrelease (Solidpath);        [Self.view.layer Addsublayer:solidline];    /* * Draw a dashed line */cashapelayer *dotteshapelayer = [Cashapelayer layer];    Cgmutablepathref Dotteshapepath = cgpathcreatemutable ();    [Dotteshapelayer Setfillcolor:[[uicolor Clearcolor] cgcolor];    [Dotteshapelayer Setstrokecolor:[[uicolor Orangecolor] cgcolor];    Dotteshapelayer.linewidth = 2.0f; Nsarray *dotteshapearr = [[Nsarray alloc] Initwithobjects:[nsnumber numberwithint:10],[nsnumber NumberWithInt:5], nil]    ;    [Dotteshapelayer Setlinedashpattern:dotteshapearr];    Cgpathmovetopoint (Dotteshapepath, NULL, 20,500);    Cgpathaddlinetopoint (Dotteshapepath, NULL, 20, 285);    Cgpathaddlinetopoint (Dotteshapepath, NULL, 300,285);    [Dotteshapelayer Setpath:dotteshapepath]; Cgpathrelease (Dotteshapepath);        [Self.view.layer Addsublayer:dotteshapelayer];    /* * Draw solid line */Cashapelayer *solidshapelayer = [Cashapelayer layer];    Cgmutablepathref Solidshapepath = cgpathcreatemutable ();    [Solidshapelayer Setfillcolor:[[uicolor Clearcolor] cgcolor];    [Solidshapelayer Setstrokecolor:[[uicolor Orangecolor] cgcolor];    Solidshapelayer.linewidth = 2.0f;    Cgpathmovetopoint (Solidshapepath, NULL, 20, 265);    Cgpathaddlinetopoint (Solidshapepath, NULL, 300,265);    Cgpathaddlinetopoint (Solidshapepath, NULL, 300,50);    [Solidshapelayer Setpath:solidshapepath];    Cgpathrelease (Solidshapepath);        [Self.view.layer Addsublayer:solidshapelayer]; }

Illustration:

iOS draw circles, draw lines