iPhone九宮格的實現

看到很多同學在問,其實很簡單,我這是用圖片堆砌實現的九宮格,分享如下:

效果圖:

核心就這2個方法:

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1. //Power by ieliwb.com
2. - (void)viewDidLoad {
3. [super viewDidLoad];
5. NSArray* imageNames = [NSArray arrayWithObjects:
6. @"ico_mobile.png",
7. @"ico_idcard.png",
8. @"ico_postcode.png",
9. @"ico_flight.png",
10. @"ico_translate.png",
11. @"ico_phone.png",
12. @"ico_car.png",
13. @"ico_health.png",
14. @"ico_bjxm.png", nil];
16. UIButton *Btn;
17. for (int i=0; i<9; i++) {
18. CGRect frame;
19. Btn = [[UIButton buttonWithType:UIButtonTypeCustom] retain];
20. [Btn setImage:[UIImage imageNamed:[imageNames objectAtIndex: i]]forState:UIControlStateNormal];//設置按鈕圖片
22. Btn.tag = i;
24. frame.size.width = 59;//設置按鈕坐標及大小
25. frame.size.height = 75;
26. frame.origin.x = (i%3)*(59+32)+40;
27. frame.origin.y = floor(i/3)*(75+24)+40;
28. [Btn setFrame:frame];
30. [Btn setBackgroundColor:[UIColor clearColor]];
31. [Btn addTarget:self action:@selector(btnPressed:)forControlEvents:UIControlEventTouchUpInside];
32. [self.view addSubview:Btn];
33. [Btn release];
35. }
37. }
39. //響應按鈕事件
40. -(void)btnPressed:(id)sender{
41. UIButton *Btn = (UIButton *)sender;
42. int index = Btn.tag;
44. switch (index) {
45. case 0:
46. if(mobileController==nil)
47. mobileController = [[MobileController alloc]init];
48. [self.navigationController pushViewController:mobileControlleranimated:YES];
49. break;
50. //其他幾個控制器類似
51. }
53. }

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1. - (void)loadView {
2. UIImageView *contentView = [[UIImageView alloc] initWithFrame:[[UIScreenmainScreen] applicationFrame]];
3. [contentView setImage:[UIImage imageNamed:@"subview_9_bg.png"]];
4. [contentView setUserInteractionEnabled:YES];
5. self.view = contentView;
6. [contentView release];
7. }
8. UINavigationBar背景圖片可以這樣實現:
10. @implementation UINavigationBar (CustomImage)
11. - (void)drawRect:(CGRect)rect {
12. UIImage *image = [UIImage imageNamed: @"top_bg.png"];
13. [image drawInRect:CGRectMake(0, 0, self.frame.size.width,self.frame.size.height)];
14. }
15. @end