One.
Two, code.
Rootviewcontroller.m
#import" RootViewController.h "@interface Rootviewcontroller () @ End@implementation rootviewcontroller-(ID) initwithnibname: (NSString *) Nibnameornil Bundle: (NSBundle *) nibbundleornil{self = [super Initwithnibname:nibnameornil Bundle:nibbundleornil]; if (self) {//Custom initialization} return to self;} -(void) viewdidload{[Super Viewdidload]; Do any additional setup after loading the view. Fillet effect [self addview]; } #pragma-mark-functions//round effect-(void) addview{Uiimageview *imageview=[[uiimageview Alloc]initwithframe:cgrectmake ( 50, 100, 200, 200)]; Imageview.backgroundcolor=[uicolor Greencolor]; ImageView.layer.cornerRadius = 10; Imageview.clipstobounds = YES; [Self.view Addsubview:imageview];} -(void) didreceivememorywarning{[Super didreceivememorywarning]; Dispose of any resources the can be recreated.}
"Code note" for Uiimageview fillet effect