IOS Lottery Turntable

#import "ViewController.h" @interface Viewcontroller () {NSString *strprise;}
@property (Retain, nonatomic) UIView *popview;
@property (Retain, nonatomic) Uilabel *labprise;
@property (Retain, nonatomic) UIButton *btn;

@property (Retain, nonatomic) Uiimageview *zhuanpan;

@end @implementation Viewcontroller @synthesize btn;

    -(void) viewdidload {[Super viewdidload]; Background Uiimageview *IMGVIEWBG = [[Uiimageview alloc] Initwithframe:cgrectmake (0, 0, Self.view.frame.size.width, Self.vie
    W.frame.size.height)];
    Imgviewbg.image = [UIImage imagenamed:@ "Bg.png"];

    [Self.view ADDSUBVIEW:IMGVIEWBG];
    Turntable _zhuanpan = [[Uiimageview alloc] Initwithframe:cgrectmake ((self.view.frame.size.width-280)/2,10, 280, 280)];
    _zhuanpan.image = [UIImage imagenamed:@ "Zhuanpan.png"];

    [Self.view Addsubview:_zhuanpan];
    Finger Uiimageview *hander = [[Uiimageview alloc] Initwithframe:cgrectmake (0, 0, 40, 40)]; Hander.center = Cgpointmake (_zhuanpan.center.x, _zhUANPAN.CENTER.Y-30);
    Hander.image = [UIImage imagenamed:@ "Hander.png"];

    [Self.view Addsubview:hander]; _labprise = [[Uilabel alloc] Initwithframe:cgrectmake (Cgrectgetminx (_zhuanpan.frame), Cgrectgetmaxy (_zhuanpan.frame
    ) +50, Cgrectgetwidth (_zhuanpan.frame), 20)];
    _labprise.textcolor = [Uicolor Orangecolor];
    _labprise.textalignment = Nstextalignmentcenter;

    [Self.view addsubview:_labprise]; Start or stop button btn = [[UIButton alloc] Initwithframe:cgrectmake ((self.view.frame.size.width-200)/2, Cgrectgetmaxy (_
    Labprise.frame) +50, 200, 35)];
    [Btn addtarget:self Action: @selector (Btnclick) forcontrolevents:uicontroleventtouchupinside];
    [Btn settitle:@ "Start" forstate:uicontrolstatenormal];
    [BTN Setbackgroundcolor:[uicolor Orangecolor]]; Btn.layer.borderColor = [Uicolor Orangecolor].
    Cgcolor;
    Btn.layer.borderWidth = 1.0f;
    Btn.layer.cornerRadius = 5.0f;
    Btn.layer.masksToBounds = YES;
[Self.view ADDSUBVIEW:BTN]; }-(void) Btnclick {NsintegER angle;

    Nsinteger randomnum = Arc4random ()%100;
        if (randomnum>=91 && randomnum<=99) {angle = 300;
    Strprise = @ "First prize";
        else if (randomnum>=76 && randomnum<=) {angle = 60;
    Strprise = @ "Second Prize";
        else if (randomnum >=51 && randomnum<=75) {angle = 180;
    Strprise = @ "Third prize";
        else {angle = 240;
    Strprise = @ "No jackpot";
    [Btn settitle:@ "Lottery ..." forstate:uicontrolstatenormal];
    _labprise.text = [NSString stringwithformat:@ "Winning results:%@", @ "Waiting for lottery results"];


    btn.enabled = NO;
    cabasicanimation* rotationanimation;
    Rotationanimation = [cabasicanimation animationwithkeypath:@ "Transform.rotation.z"];
    Rotationanimation.tovalue = [NSNumber numberwithfloat:angle*m_pi/180];
    Rotationanimation.duration = 1.0f;
    Rotationanimation.cumulative = YES;

    Rotationanimation.delegate = self; The following two lines are set to keep the position unchanged after the move Rotationanimation.fillmode=kcafillmodEforwards;

    Rotationanimation.removedoncompletion = NO;
[_zhuanpan.layer addanimation:rotationanimation forkey:@ "Rotationanimation"];
                     }//Animation end-(void) Animationdidstop: (Caanimation *) Anim finished: (BOOL) flag {[UIView animatewithduration:2.0 animations:^{_popview = [[UIView alloc] Initwithframe:cgrectmake (0, 0, self.view.fr
                         Ame.size.width, Self.view.frame.size.height)];
                         _popview.backgroundcolor = [Uicolor Clearcolor];
                         _popview.transform = Cgaffinetransformmakescale (2, 2);

                         [Self.view Addsubview:_popview]; Uiimageview *popimageview = [[Uiimageview alloc] Initwithframe:cgrectmake (M, self.view.frame.size.width-200,
                         SELF.VIEW.FRAME.SIZE.WIDTH-200)];
                         Popimageview.image = [UIImage imagenamed:@ "Prise.png"];

                     [_popview Addsubview:popimageview];
             }        completion:^ (BOOL finished) {[_popview Removefromsuperview];
                         _labprise.text = [NSString stringwithformat:@ "Jackpot Result:%@", strprise];
                         [Btn settitle:@ "Start the Lottery" forstate:uicontrolstatenormal];

                     btn.enabled = YES;

}];
 } @end

Effect Chart:

Demo download