[Cocoa]_[初级]_[Cocoa中对GIF动画分解成一帧帧的图片]

概述-(void) sepatateGifAnimation:(NSImage *) gifImage{ NSArray * reps = [gifImage representations]; for (NSImageRep * rep in reps) { // find the bitmap representation if ([rep

-(voID) sepatateGifAnimation:(NSImage *) gifImage{    NSArray * reps = [gifImage representations];    for (NSImageRep * rep in reps)    {        // find the bitmap representation        if ([rep isKindOfClass:[NSBitmAPImageRep class]] == NO)            continue;                // get the bitmap representation        NSBitmAPImageRep * bitmapRep = (NSBitmAPImageRep *)rep;                // check multiframe gif        int numFrame = [[bitmapRep valueForProperty:NSImageFrameCount] intValue];        if (numFrame == 0)            break;                for (int i = 0; i < numFrame; ++i)        {            // set the current frame            [bitmapRep setProperty:NSImageCurrentFrame withValue:[NSNumber numberWithInt:i]];            NSData *repData = [bitmapRep representationUsingType:NSPNGfileType propertIEs:nil];            [repData writetofile:[Nsstring stringWithFormat: @"/Users/mac-d1/work/UnTitled13_%02d.png",i] atomically:NO];                                    // NSImage *image = [[NSImage alloc] initWithData:repData];//NSData to NSImage 转化生成NSImage进行其他的 *** 作。                    }    }

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