OBJECTIVE-C: Basic use of stepping uistepper, sliding block uislider, switch uiswitch

Stepping Uistepper, sliding block UISlider: When they are triggered as events, their values change. Because of this, when the event is triggered, you can flip through a picture,,,

Stepping Uistepper:

@property (nonatomic) double minimumvalue; Default 0. Must is less than MaximumValue

@property (nonatomic) double maximumvalue; Default 100. Must be greater than minimumvalue

@property (nonatomic) double stepvalue; Default 1. must be greater than 0, distance per step

1 // Slider trigger Event (value change, range Mininum~maxnum) 2 -(ibaction) Slidervaluechange: (UISlider *) sender3{4     NSLog (  @ "%lf", sender.value); 5     // takes the value of the slider and assigns it to the step, making the step and slider event states the same 6     [Self.stepper setValue:sender.value]; 7 }

Slide Block Uistepper:

@property (nonatomic) float value; Default 0.0. This value would be pinned to Min/max

@property (nonatomic) float MinimumValue; Default 0.0. The current value could change if outside new min value

@property (nonatomic) float MaximumValue; Default 1.0. The current value could change if outside new max value

1 // Step Trigger Event (value change, range mininum~maxnum, step size can be set) 2 -(ibaction) Steppervaluechange: (uistepper *) sender3{4     NSLog ( @" %LF " , sender.value); 5     // takes the value of the stepping and assigns it to the slider, making the Step and slider events the same state 6     [Self.slider setValue:sender.value]; 7 }

Switch Uiswitch:

@property (Nonatomic,getter=ison) BOOL on; There are two states, open on or off off

1 // Switch Trigger event (status State only has two forms: on, off) 2 -(ibaction) Switchvaluechange: (Uiswitch *) sender3{4     NSLog (  @ "%@", Sender.ison? @" Open ":@" off "); 5 }

The following is a picture browser made with stepping and sliding blocks, switches

The source code is as follows:

1 //VIEWCONTROLLER.M2 //02-Image Browser3 //4 //Created by Ma C on 15/8/27.5 //Copyright (c) 2015 BJSXT. All rights reserved.6 //7 8 #import "ViewController.h"9 Ten @interfaceViewcontroller () One@property (Weak, nonatomic) Iboutlet UILabel *Labeltitle; A@property (Weak, nonatomic) Iboutlet UILabel *Labelinfo; -@property (Weak, nonatomic) Iboutlet Uiimageview *ImageView; -@property (Weak, nonatomic) Iboutlet Uistepper *Stepper; the@property (Weak, nonatomic) Iboutlet UISlider *Slider; -@property (strong,nonatomic) Nsarray *Imageinfos; -@property (assign,nonatomic) Nsinteger index;//Displays the index of the current picture -@property (assign,nonatomic) Nsinteger total;//Number of pictures + @end -  + @implementationViewcontroller A-(Ibaction) Steppervaluechange: (Uistepper *) Sender at { - [Self.slider SetValue:sender.value]; -Self.index =[Self.stepper value]; - [self setImageIndex:self.index]; - } --(Ibaction) Slidervaluechange: (UISlider *) Sender in { - [Self.stepper SetValue:sender.value]; toSelf.index =[Self.slider value]; + [self setImageIndex:self.index]; - } the  *- (void) Viewdidload { $ [Super Viewdidload];Panax Notoginseng     //Loading picture information -NSString *path = [[NSBundle mainbundle] Pathforresource:@"Images"OfType:@"plist"]; theSelf.imageinfos =[Nsarray Arraywithcontentsoffile:path]; +      A      the     //Initialize +Self.total =[Self.imageinfos Count]; -Self.index =0; $      $Self.stepper.minimumValue =0; -Self.stepper.maximumValue = Self.total-1; -Self.stepper.value =0; theSelf.stepper.stepValue =1; -     WuyiSelf.slider.minimumValue =0; theSelf.slider.maximumValue = Self.total-1; -Self.slider.value =0; Wu      -  AboutSelf.imageView.contentMode =Uiviewcontentmodescaleaspectfit; $[Self Setimageindex:0]; -      - } -  A-(void) Setimageindex: (nsuinteger) Index + { the      -     //Take out the dictionary in the array $Nsdictionary *dicimage =Self.imageinfos[index]; theNSString *imagename = [Dicimage objectforkey:@"icon"]; theNSString *imagetitle = [Dicimage objectforkey:@"title"]; the      the     //set the displayed picture -Self.imageView.image =[UIImage imagenamed:imagename]; in      the     //set the caption of the displayed picture theSelf.labelTitle.text =Imagetitle; About      the     //Set Current information: Index/Total theSelf.labelInfo.text = [NSString stringWithFormat:@"%ld/%ld", self.index+1, self.total]; the } +  -- (void) didreceivememorywarning { the [Super didreceivememorywarning];Bayi     //Dispose of any resources the can be recreated. the } the  - @end

OBJECTIVE-C: Basic use of stepping uistepper, sliding block uislider, switch uiswitch