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:

<pre name= "code" class= "OBJC" >-(void) viewdidload {    [super viewdidload];        Uiimageview *imageview01 = [[Uiimageview alloc] init];    [ImageView01 Setframe:cgrectmake (All-in-a-.];    [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 fro M a nib.        var imageview01 = Uiimageview (Frame:cgrectmake (a)        imageview01.image = UIImage (named: "Style.jpg") C4/>self.view.addsubview (imageview01)                var imageview02 = Uiimageview (frame:imageview01.frame)        Imageview02.image = UIImage (named: "Icon_chat_right_bg")? Stretchableimagewithleftcapwidth (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