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