Learn the iOS switch button UISwitch control

This article examples for you to share iOS switch button UISwitch control specific code, for your reference, specific content is as follows

In ViewController h inside

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController{

 // define 1 A switch control 
 // Effects can make state changes 
 // open , Close: The two states can be switched 
 // all UIKit The controls in the framework library have been removed UI At the beginning 
 // Apple's official controls are defined in UIKit In the framework of library 
 UISwitch * _mySwitch;

}

@property(retain,nonatomic) UISwitch * mySwitch;


@end

In ViewController m inside

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
@synthesize mySwitch=_mySwitch;

- (void)viewDidLoad {
 [super viewDidLoad];
 // Do any additional setup after loading the view, typically from a nib.

 // create 1 Ten switch objects 
 // Inheritance in UIView the 
 _mySwitch = [[UISwitch alloc]init];

 // Apple's official control location Settings 
 // location X,Y Can be changed ( 100 . 100 ) 
 // The width and height values cannot be changed (80,40) It won't work. It won't work. The default. 
 _mySwitch.frame=CGRectMake(100, 200, 180, 40);

 // On/off state setting properties 
 //YES: open 
 //NO: The closed position 
 _mySwitch.on=YES;

 // You can also use set function 
 //[_mySwitch setOn:YES];

 // Set switching state 
 //p1: state 
 //p2: Whether to turn on animation 
 //[_mySwitch setOn:YES animated:YES];

 [self.view addSubview:_mySwitch];

 // Sets the style color for the enabled state 
 [_mySwitch setOnTintColor:[UIColor orangeColor]];

 // Set the style color of the switch circle button 
 [_mySwitch setThumbTintColor:[UIColor blueColor]];

 // Set the overall style color , The white of the button is the background color of the entire parent layout 
 [_mySwitch setTintColor:[UIColor greenColor]];

 // Adds an event function to the switch control 
 //p1: Function implementation object 
 //p2: The function object 
 //p3: The event type at the time of the event response UIControlEventValueChanged Triggers the function when the state changes 
 [_mySwitch addTarget:self action:@selector(swChange:) forControlEvents:UIControlEventValueChanged];


}

// Parameter passed into the switch object itself 
- (void) swChange:(UISwitch*) sw{

 if(sw.on==YES){
  NSLog(@" Switch on ");
 }else{
  NSLog(@" Switch off ");
 }
}

- (void)didReceiveMemoryWarning {
 [super didReceiveMemoryWarning];
 // Dispose of any resources that can be recreated.
}

@end