Increment UISlider by 1 in range 1 to 100

Question

I am new to iPhone,

How do I have my UISlider go from 1 to 100 in increments of 1?

    slider = [[UISlider alloc] init];
    [slider add         


        

Answer 1

Here is simple Example of UISlider

headereFile.h

#import 

@interface ViewController : UIViewController
{
    IBOutlet UISlider *slider;
    IBOutlet UILabel *lbl;
    IBOutlet UITextField *txtField;
    IBOutlet UIButton *btn;
    IBOutlet UISwitch *swich;
    IBOutlet UIScrollView *scView;


}

@property(nonatomic,retain)UISlider *slider;
@property(nonatomic,retain)UILabel *lbl;
@property(nonatomic,retain)UITextField *txtField;
@property(nonatomic,retain)UIButton *btn;
@property(nonatomic,retain)UIScrollView *scView;
@property(nonatomic,retain)UISwitch *swich;

-(IBAction)sliderChanged:(UISlider *)slider;
-(IBAction)ButtonPressed:(id)sender;
-(IBAction)showTextField:(id)sender;

@end

implementFile.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

@synthesize  slider,lbl,txtField,btn,scView,swich;

- (void)viewDidLoad
{
    self.view.backgroundColor=[UIColor groupTableViewBackgroundColor];

    self.scView=[[UIScrollView alloc] initWithFrame:CGRectMake(0, 0,320,460)];
    self.scView.delegate=self;
    self.scView.contentSize=CGSizeMake(320,465);
     [self.view addSubview:self.scView];

    self.slider=[[UISlider alloc] initWithFrame:CGRectMake(50,270,220,30)];
    self.slider.minimumValue=0.00;
    self.slider.maximumValue=100.00;
    self.slider.thumbTintColor=[UIColor redColor];
    [self.slider addTarget:self action:@selector(sliderChanged:) forControlEvents:UIControlEventValueChanged];
    [self.scView addSubview:self.slider];

    self.lbl=[[UILabel alloc] initWithFrame:CGRectMake(135, 290,200,30)];
    self.lbl.backgroundColor=[UIColor clearColor];
    NSString *str=[NSString stringWithFormat:@"%.f",[self.slider value]];
    self.lbl.text=str;
    [self.scView addSubview:self.lbl];

    self.txtField=[[UITextField alloc] initWithFrame:CGRectMake(50, 220,150,30)];
    self.txtField.borderStyle=UITextBorderStyleRoundedRect;
    self.txtField.delegate=self;
    self.txtField.returnKeyType=UIReturnKeyDone;
    self.txtField.placeholder=@"Enter 1 to 100";
    [self.scView addSubview:self.txtField];

      self.btn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
      self.btn.frame=CGRectMake(205, 215,64, 37);
     [self.btn setTitle:@"Change" forState:UIControlStateNormal];
    [self.btn addTarget:self action:@selector(ButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
     [self.scView addSubview:self.btn];

    self.swich=[[UISwitch alloc] initWithFrame:CGRectMake(124,140, 75,40)];
    [self.swich addTarget:self action:@selector(showTextField:) forControlEvents:UIControlEventValueChanged];
    self.swich.on=YES;
    /*
    ((UILabel *)[[[[[[self.swich subviews] lastObject] subviews] objectAtIndex:2] subviews] objectAtIndex:0]).text = @"Foo";
    ((UILabel *)[[[[[[self.swich subviews] lastObject] subviews] objectAtIndex:2] subviews] objectAtIndex:1]).text = @"Bar";
    */
    [self.scView addSubview:self.swich];
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}


-(IBAction)showTextField:(id)sender
{
    if (self.swich.on)
    {
        [self.swich setOn:YES animated:YES];
        self.txtField.hidden=NO;
        self.btn.hidden=NO;
    }
    else 
    {
        [self.swich setOn:NO animated:YES];
        self.txtField.hidden=YES;
        self.btn.hidden=YES;
    }
}

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    self.scView.frame=CGRectMake(0, 0,320,230);
    return  YES;
}

- (BOOL)textFieldShouldEndEditing:(UITextField *)textField
{
    [self.txtField resignFirstResponder];

    self.scView.frame=CGRectMake(0, 0,320,460);
    return YES;
}


-(IBAction)sliderChanged:(UISlider *)slider;
{

    NSString *str=[NSString stringWithFormat:@"%.f",[self.slider value]];
    self.lbl.text=str;
}

-(IBAction)ButtonPressed:(id)sender
{
    NSString *values=[self.txtField text];
    float Values=[values floatValue];

    if (Values<=100)
    {
        self.slider.value=Values;
        self.lbl.text=values;
    }
    else 
    {
        UIAlertView *connectFailMessage = [[UIAlertView alloc] initWithTitle:@"NSURLConnection " message:@"Plz...Entre Proper Value !!!"  delegate: self cancelButtonTitle:@"Ok" otherButtonTitles: nil];
        [connectFailMessage show];
    }

}


- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

@end