iOS switch button Uiswitch control

Switch button Uiswitch
Inside the ViewController.h.

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# Import <uikit/uikit.h>   @interface viewcontroller:uiviewcontroller{  &NBSP;&NBSP; //define a switch control &NBSP;&NBSP; //function can be changed in state    //on, off: two states can toggle    //all controls in the Uikit framework library have UI start &NBSP;&NBSP; Code class= "CPP Comments" >//The official Apple controls are defined in the Uikit Framework library &NBSP;&NBSP; uiswitch * _myswitch;  }   @property (retain,nonatomic) Uiswitch * Myswitch;    @end

Inside the VIEWCONTROLLER.M.

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#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.  //创建一个开关对象  //继承于UIView的  _mySwitch = [[UISwitch alloc]init];  //苹果官方的控件的位置设置  //位置X,Y的值可以改变（100，100）  //宽度和高度值无法改变(80,40)写了也没有用的，不会起到作用的。默认的。  _mySwitch.frame=CGRectMake(100, 200, 180, 40);  //开关状态设置属性  //YES:开启状态  //NO:关闭状态  _mySwitch.on=YES;  //也可以使用set函数  //[_mySwitch setOn:YES];  //设置开关状态  //p1:状态设置  //p2:是否开启动画效果  //[_mySwitch setOn:YES animated:YES];  [self.view addSubview:_mySwitch];  //设置开启状态的风格颜色  [_mySwitch setOnTintColor:[UIColor orangeColor]];  //设置开关圆按钮的风格颜色  [_mySwitch setThumbTintColor:[UIColor blueColor]];  //设置整体风格颜色,按钮的白色是整个父布局的背景颜色  [_mySwitch setTintColor:[UIColor greenColor]];  //向开关控件添加事件函数  //p1:函数实现对象  //p2:函数对象  //p3:事件响应时的事件类型UIControlEventValueChanged状态发生变化时触发函数  [_mySwitch addTarget:self action:@selector(swChange:) forControlEvents:UIControlEventValueChanged];}//参数传入开关对象本身- (void) swChange:(UISwitch*) sw{  if(sw.on==YES){    NSLog(@"开关被打开");  }else{    NSLog(@"开关被关闭");  }}- (void)didReceiveMemoryWarning {  [super didReceiveMemoryWarning];  // Dispose of any resources that can be recreated.}@end

iOS switch button Uiswitch control