Chat bubbles for IOS pictures show Objective-c and Swift

How to implement the picture of the chat software show the clipped bubbles?

Objective-c:

-  (void) viewdidload {    [super viewdidload];         UIImageView *ImageView01 = [[UIImageView alloc] init];     [imageview01 setframe:cgrectmake (90, 190, 120, 180)];    [ imageview01 setimage:[uiimage imagenamed:@ "Style.jpg"]];    [self.view  addsubview:imageview01];        uiimage *bubble = [ uiimage imagenamed:@ "ICON_CHAT_RIGHT_BG"];    uiimageview *imageview =  [[uiimageview alloc] init];    [imageview setframe:imageview01.frame] ;    [imageview setimage:[bubble stretchableimagewithleftcapwidth:15  topcapheight:15]];        calayer *layer               = imageview.layer;    layer.frame                  =  (CGRect) {{0,0}, imageview.layer.frame.size};    imageview01.layer.mask = layer;     [imageview01 setneedsdisplay];}

Swift:

    override func viewdidload ()  {         super.viewdidload ()         // do any additional  setup after loading the view, typically from a nib.         var imageview01 = uiimageview (Frame: CGRectMake (90,  190, 120, 180))         imageview01.image =  UIImage (named:  "style.jpg")         self.view.addsubview ( IMAGEVIEW01)                  Var imageview02 = uiimageview (Frame: imageview01.frame)          imageview02.image = uiimage (named:  "ICON_CHAT_RIGHT_BG")? Stretchableimagewithleftcapwidth (15, topcapheigHT: 15)                  var layer = imageview02.layer        layer.frame =  cgrect (origin: cgpointzero,size: imageview02.layer.frame.size)          imageview01.layer.mask = layer             }

style . jpg :  

:   

ICON_CHAT_RIGHT_BG:

Chat bubbles for IOS pictures show objective-c and Swift