ios - Mask an image and fill with color -


i mask image color , filling both selection , rest. i'm using cgimagecreatewithmaskingcolors, don't know how fill image color.

here begining of code

uiimage *source = [uiimage imagenamed:@"nb.png"];  const cgfloat mymaskingcolors[6] = {0,110,0,110,0,110}; cgimageref imageref = cgimagecreatewithmaskingcolors(source.cgimage, mymaskingcolors); uiimage* imageb = [uiimage imagewithcgimage:imageref]; uiimageview *imageview = [[uiimageview alloc]initwithimage:imageb];

thanks edit: think not clear, 1 color selection , color rest

if want 2 colors applied on image can apply gradient on image this

- (uiimage *)applygradientonimage:(uiimage *)image withstartcolor:(uicolor *)color1 endcolor:(uicolor *)color2 {     uigraphicsbeginimagecontextwithoptions(image.size, no, image.scale);     cgcontextref context = uigraphicsgetcurrentcontext();     cgcontexttranslatectm(context, 0, image.size.height);     cgcontextscalectm(context, 1.0, -1.0);      cgcontextsetblendmode(context, kcgblendmodenormal);     cgrect rect = cgrectmake(0, 0, image.size.width, image.size.height);     //cgcontextdrawimage(context, rect, img.cgimage);      // create gradient     nsarray *colors = [nsarray arraywithobjects:(id)color2.cgcolor, (id)color1.cgcolor, nil];     cgcolorspaceref space = cgcolorspacecreatedevicergb();     cggradientref gradient = cggradientcreatewithcolors(space, (__bridge cfarrayref)colors, null);      // apply gradient     cgcontextcliptomask(context, rect, image.cgimage);     cgcontextdrawlineargradient(context, gradient, cgpointmake(0,0), cgpointmake(0, image.size.height), 0);     uiimage *gradientimage = uigraphicsgetimagefromcurrentimagecontext();     uigraphicsendimagecontext();      cggradientrelease(gradient);     cgcolorspacerelease(space);      return gradientimage; }

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