iOS学习-其他常用控件2

 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