UI基础_transform

1. #import "ViewController.h"
2. typedef enum
3. {
4.     ButtonTypeLeft = 1,
5.     ButtonTypeRight,
6.     ButtonTypeUp,
7.     ButtonTypeDown,
8.     ButtonTypeRotleL,
9.     ButtonTypeRotleR,
10.     ButtonTypeScaleUp,
11.     ButtonTypeScaleDown
12. }ButtonType;
13. @interface ViewController ()
14. @property (strong, nonatomic) IBOutlet UIView *viewMan;
15.  @end

1. @implementation ViewController
2. - (IBAction)buttonDirectionClicked:(UIButton *)sender
3. {
4.     //获取屏幕的宽度、高度
5.     NSInteger screenWidth = self.view.frame.size.width;
6.     NSInteger screenHeight = self.view.frame.size.height;
7.     //获取viewMain的位置信息
8.     CGRect rect = self.viewMan.frame;
9.     //设置移动的尺寸
10.     NSInteger offSet = 10;
11.     switch (sender.tag) {
12.         case ButtonTypeLeft:
13.             rect.origin.x -= offSet;
14.             if (rect.origin.x <= -rect.size.width ) {
15.                 rect.origin.x = screenWidth;
16.             }
17.             break;
18.         case ButtonTypeRight:
19.             rect.origin.x += offSet;
20.             if (rect.origin.x >= screenWidth) {
21.                 rect.origin.x = -rect.size.width;
22.             }
23.             break;
24.         case ButtonTypeUp:
25.             rect.origin.y -= offSet;
26.             if (rect.origin.y <= -rect.size.height) {
27.                 rect.origin.y = screenHeight;
28.             }
29.             break;
30.         case ButtonTypeDown:
31.             rect.origin.y += offSet;
32.             if (rect.origin.y >= screenHeight) {
33.                 rect.origin.y = -rect.size.height;
34.             }
35.             break;
36.     }
37.     self.viewMan.frame = rect;
38. }
39. - (IBAction)buttonRotale:(UIButton *)sender
40. {
41.     CGAffineTransform form = self.viewMan.transform;
42.     switch (sender.tag) {
43.         case ButtonTypeRotleL:
44.             form = CGAffineTransformRotate(form, -M_2_PI/2);
45.             break;
46.         case ButtonTypeRotleR:
47.             form = CGAffineTransformRotate(form, M_2_PI/2);
48.         default:
49.             break;
50.     }
51.     self.viewMan.transform = form;
52. }
53. - (IBAction)buttonScale:(UIButton *)sender
54. {
55.     CGAffineTransform form = self.viewMan.transform;
56.     CGFloat scaleFator = 0.0f;
57.     switch (sender.tag) {
58.         case ButtonTypeScaleUp:
59.             scaleFator = 1.5;
60.             break;
61.          case ButtonTypeScaleDown:
62.             scaleFator = 0.5;
63.     }
64.     form = CGAffineTransformScale(form, scaleFator, scaleFator);
65.     self.viewMan.transform = form;
66. }
67. - (void)viewDidLoad {
68.     [super viewDidLoad];
69.     // Do any additional setup after loading the view, typically from a nib.
70. }
71. - (void)didReceiveMemoryWarning {
72.     [super didReceiveMemoryWarning];
73.     // Dispose of any resources that can be recreated.
74. }
75. @end