osx - How to display animated GIF in Objective C on top of the layered View? -

i trying draw animated gif on screen in mac osx app . used code insert gif: can see gif 1 picture doesn't animates static picture :( should add make animated ?

#import <cocoa/cocoa.h> #import <quartz/quartz.h>//for drawing circle #import "sharedprefferences.h" @interface genericfansubview : nsview {     nscolor * _backgroundcolor;     nsimageview* imageview; }  - (void)setbackgroundcolor :(nscolor*)color;  - (void)insertgif1; - (void)insertgif2; - (void)insertgif3; @end  #import "genericfansubview.h" #define pi 3.14285714285714  @implementation genericfansubview  - (id)initwithframe:(nsrect)frame {     self = [super initwithframe:frame];     if (self) {     // initialization code here.             imageview = [[nsimageview alloc]initwithframe:cgrectmake(0, 0,self.frame.size.width,self.frame.size.height)];          [imageview setanimates: yes];     }     return self; }  - (void)drawrect:(nsrect)dirtyrect {     [super drawrect:dirtyrect];     // drawing code here.     [self drawcircleinrect];     _backgroundcolor = [nscolor whitecolor];     [self insertgif1]; }  -(void)drawcircleinrect {     //draw colored circle here     cgcontextref context = [[nsgraphicscontext // 1                          currentcontext] graphicsport];     // ********** drawing code here ********** // 2     cgcontextsetfillcolorwithcolor(context,[self nscolortocgcolor:(_backgroundcolor)]);     float radius1 = self.frame.size.height/2;     float startangle = 0;     float endangle = endangle = pi*2;     cgpoint position =  cgpointmake(self.frame.size.height/2,self.frame.size.height/2);//center of view     cgcontextbeginpath(context);     cgcontextaddarc(context, position.x, position.y, radius1, startangle, endangle, 1);     cgcontextdrawpath(context, kcgpathfill); // or kcgpathfill } - (void)setbackgroundcolor :(nscolor*)color {     _backgroundcolor = color;      [self setneedsdisplay:yes]; }  - (cgcolorref)nscolortocgcolor:(nscolor *)color {     nsinteger numberofcomponents = [color numberofcomponents];     cgfloat components[numberofcomponents];     cgcolorspaceref colorspace = [[color colorspace] cgcolorspace];     [color getcomponents:(cgfloat *)&components];     cgcolorref cgcolor = cgcolorcreate(colorspace, components);     return cgcolor; }  //curentlly calling 1 - (void)insertgif1 {     [imageview removefromsuperview];       [imageview setimagescaling:nsimagescalenone];       [imageview setanimates: yes];       imageview.image = [nsimage imagenamed:@"fanblades11.gif"];       [self addsubview:imageview];  }  @end 

edit: discovered source of problem: adding class (that represents gif inside circle) on top of rmblurredview , animations doesn't work when adding subview ,however works on other views added.

any ideas reason inside rmblurredview stop nsimageview animating ?

edit: think [self setwantslayer:yes]; reason not getting animations how can still animation feature enabled?

edit:

here simple sample problem

http://snk.to/f-cdk3wmfn

my gif:this gif invisible on white background color

"you must disable autoscaling feature of nsimageview animation playback function. after you've done that, no programming required. works charm!"

--http://www.cocoabuilder.com/archive/cocoa/108530-nsimageview-and-animated-gifs.html

imageview.imagescaling = nsimagescalenone; imageview.animates = yes; 

needed layer backed views:

if image view in layer backed view or layer backed itself:

imageview.candrawsubviewsintolayer = yes; 

---

working example using question's own gif:

nsimageview *view = [[nsimageview alloc] initwithframe:cgrectmake(10, 10, 50, 50)]; view.imagescaling = nsimagescalenone; view.animates = yes; view.image = [nsimage imagenamed:@"fanblades2_42x42.gif"]; view.candrawsubviewsintolayer = yes;  nsview *layerview = [[nsview alloc] initwithframe:cgrectmake(0, 0, 60, 60)]; layerview.wantslayer = yes; [layerview addsubview:view];  [self.window.contentview addsubview:layerview];