1 // 2 // ViewController.m 3 // 其他常用控件2 4 // 5 // Created by 大欢 on 16/1/25. 6 // Copyright © 2016年 bjsxt. All rights reserved. 7 // 8 9 #import "ViewController.h" 10 11 @interface ViewController () 12 13 @property (nonatomic, strong) UIActivityIndicatorView * indicatorView; 14 15 @property (weak, nonatomic) IBOutlet UILabel *stepperLabel; 16 - (IBAction)startActity:(id)sender; 17 - (IBAction)stopActity:(id)sender; 18 19 20 @end 21 22 @implementation ViewController 23 24 - (void)viewDidLoad { 25 [super viewDidLoad]; 26 // [self createStepper]; 27 28 self.view.backgroundColor = [UIColor orangeColor]; 29 30 UIActivityIndicatorView * indicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; 31 32 //暂停时隐藏 33 indicatorView.hidesWhenStopped = YES; 34 35 indicatorView.center = self.view.center; 36 37 //设置风火轮的颜色 38 indicatorView.color = [UIColor redColor]; 39 40 [self.view addSubview:indicatorView]; 41 42 self.indicatorView = indicatorView; 43 44 } 45 46 - (void)createStepper { 47 48 //计数器控件 49 UIStepper * stepper = [[UIStepper alloc] initWithFrame:CGRectMake(100, 100, 0, 0)]; 50 [self.view addSubview:stepper]; 51 52 stepper.value = 30; 53 stepper.minimumValue = 10; 54 stepper.maximumValue = 50; 55 stepper.stepValue = 2; 56 stepper.continuous = NO; 57 //临界是否继续输出，min <-> max 58 stepper.wraps = YES; 59 stepper.tintColor = [UIColor redColor]; 60 //点住按钮是否自动增加计数 61 stepper.autorepeat = YES; 62 63 [stepper addTarget:self action:@selector(stepAction:) forControlEvents:UIControlEventValueChanged]; 64 } 65 66 - (void)stepAction:(UIStepper *)stepper { 67 68 NSLog(@"%lf",stepper.value); 69 self.stepperLabel.font = [UIFont systemFontOfSize:stepper.value]; 70 71 } 72 73 74 75 - (IBAction)startActity:(id)sender { 76 77 [self.indicatorView startAnimating]; 78 } 79 80 - (IBAction)stopActity:(id)sender { 81 82 [self.indicatorView stopAnimating]; 83 } 84 @end