iphone上下左右手势判断代码

1. -(void)viewDidLoad{
2. UISwipeGestureRecognizer*recognizer;
3. recognizer=[[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
4. [recognizersetDirection:(UISwipeGestureRecognizerDirectionRight)];
5. [[selfview]addGestureRecognizer:recognizer];
6. [recognizerrelease];
7. recognizer=[[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
8. [recognizersetDirection:(UISwipeGestureRecognizerDirectionUp)];
9. [[selfview]addGestureRecognizer:recognizer];
10. [recognizerrelease];
12. recognizer=[[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
13. [recognizersetDirection:(UISwipeGestureRecognizerDirectionDown)];
14. [[selfview]addGestureRecognizer:recognizer];
15. [recognizerrelease];
17. recognizer=[[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
18. [recognizersetDirection:(UISwipeGestureRecognizerDirectionLeft)];
19. [[selfview]addGestureRecognizer:recognizer];
20. [recognizerrelease];
22. [superviewDidLoad];
23. }
25. -(void)handleSwipeFrom:(UISwipeGestureRecognizer*)recognizer{
26. NSLog(@"Swipereceived.");
27. if(recognizer.direction==UISwipeGestureRecognizerDirectionDown){
28. NSLog(@"swipedown");
29. //执行程序
30. }
31. if(recognizer.direction==UISwipeGestureRecognizerDirectionUp){
32. NSLog(@"swipeup");
33. //执行程序
34. }
35. if(recognizer.direction==UISwipeGestureRecognizerDirectionLeft){
36. NSLog(@"swipeleft");
37. //执行程序
38. }
39. if(recognizer.direction==UISwipeGestureRecognizerDirectionRight){
40. NSLog(@"swiperight");
41. //执行程序
42. }
43. }

其他参考
http://www.cnblogs.com/wujian1360/archive/2011/08/29/2158305.html

http://o0o0o0o.iteye.com/blog/875333

http://blog.sina.com.cn/s/blog_6f40a0e70100p6bt.html