UISwitch

//
//  MainViewController.m
//  UISwitch
//
//  Created by dllo on 15/8/3.
//  Copyright (c) 2015年 Clare. All rights reserved.
//

#import "MainViewController.h"

@interface MainViewController ()

@end

@implementation MainViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    UISwitch *switch1 = [[UISwitch alloc] initWithFrame:CGRectMake(200, 200, 150, 50)];
    [self.view addSubview:switch1];
    [switch1 release];
    [switch1 setOn:YES];
    [switch1 addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
}
- (void)click:(UISwitch *)switch1
{
    self.view.backgroundColor = [UIColor colorWithRed:arc4random() % 256 / 255.0 green:arc4random() % 256 / 255.0 blue:arc4random() % 256 / 255.0 alpha:100];
}

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

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end