IOS: 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     //The value of the slider is taken out and assigned to the stepping so that the step and slide block event state is 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, stepping size can be set step value) 2-(Ibaction) Steppervaluechange: (Uistepper *) Sender3 {4     NSLog (@ "%lf", Sender.value); 5     //Remove the stepping value and assign it to the slider so that the step and slider event states are the same 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 (State states only two forms: on, off) 2-(Ibaction) Switchvaluechange: (Uiswitch *) Sender3 {4     NSLog (@ "%@", [email Protected] "open": @ "Off"); 5}

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

The source code is as follows:

 1//VIEWCONTROLLER.M 2//02-Image Browser 3//4//Created by Ma C on 15/8/27. 5//Copyright (c) 2015 BJSXT. All rights reserved. 6//7 8 #import "ViewController.h" 9 @interface Viewcontroller () One @property (weak, nonatomic) Iboutlet UILabel *lab Eltitle;12 @property (Weak, nonatomic) Iboutlet UILabel *labelinfo;13 @property (weak, nonatomic) Iboutlet Uiimageview *im Ageview;14 @property (Weak, nonatomic) Iboutlet uistepper *stepper;15 @property (weak, nonatomic) Iboutlet UISlider *slide R;16 @property (strong,nonatomic) nsarray *imageinfos;17 @property (assign,nonatomic) Nsinteger index;//Show index of current picture 18 @ Property (assign,nonatomic) nsinteger total;//pictures @end20 @implementation ViewController22-(ibaction) Steppervaluechange: (Uistepper *) sender23 {[Self.slider setvalue:sender.value];25 self.index = [Self.stepper val  ue];26 [Self setimageindex:self.index];27}28-(ibaction) Slidervaluechange: (UISlider *) sender29 {[Self.stepper] setvalue:sender.value];31 sElf.index = [Self.slider value];32 [Self setimageindex:self.index];33}34-(void) Viewdidload {$ [Super Viewdi DLOAD];37//Load picture information nsstring *path = [[NSBundle mainbundle] pathforresource:@ "Images" oftype:@ "plist"];39 sel F.imageinfos = [Nsarray arraywithcontentsoffile:path];40 41 42//initialization of self.total = [Self.imageinfos count     ];44 Self.index = 0;45 Self.stepper.minimumValue = 0;47 Self.stepper.maximumValue = self.total-1;48 Self.stepper.value = 0;49 Self.stepper.stepValue = 1;50 Self.slider.minimumValue = 0;52 self.slider. MaximumValue = self.total-1;53 Self.slider.value = 0;54, Self.imageView.contentMode = Uiviewcontentmode scaleaspectfit;57 [Self setimageindex:0];58}60-(void) Setimageindex: (Nsuinteger) index62 {63 64//Remove The dictionary in the array is nsdictionary *dicimage = self.imageinfos[index];66 nsstring *imagename = [dicimage objectforkey:@ "icon"]; NSString *imagetitle = [Dicimage objectforkey:@ "title"];68 69//settings display picture of Self.imageView.image = [UIImage imagenamed:imagename]  ; 71 72//Set the caption of the displayed picture Self.labelTitle.text = imagetitle;74 75//Set Current information: Index/Total Self.labelInfo.text  = [NSString stringwithformat:@ "%ld/%ld", self.index+1,self.total];77}78-(void) didreceivememorywarning {[Super] didreceivememorywarning];81/Dispose of any resources the can be recreated.82}83 @end

IOS: Basic use of stepping uistepper, sliding block uislider, switch uiswitch