How to get sprite animation frames using spritesheet in cocos2d

if you are using SpriteSheet for animation,you can extract all required frame like this…

    [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"spritesheet.plist"];
    CCSpriteBatchNode *spriteSheet = [CCSpriteBatchNode batchNodeWithFile:@"spritesheet.png"];

    [self addChild:spriteSheet];

     NSMutableArray *frames = [[[NSMutableArray alloc]init]retain];

     for(int i = 1; i <= numberFrames; i++) {
          [frames addObject:[[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:[NSString stringWithFormat:@"%@0%d.png", file_name, i]]];
        }

     // Animation object with 0.04 seconds between each frame (~30fps)
        CCAnimation *anim = [CCAnimation animationWithFrames:frames delay:0.04f];

        if(self.sprite){
          // Animate the sprite
          [self.sprite runAction:[CCAnimate actionWithAnimation:anim restoreOriginalFrame:NO]];
         }