自由布局，UIButton样式，下阴影，按钮事件

http://gekie.iteye.com/blog/1133427

自由布局，UIButton样式，下阴影，按钮事件。

导航栏rightBarButtonItem增加UISegmentedControl控件。

 

 

 

 

Objective-c代码  

1. #import <QuartzCore/QuartzCore.h>  
2. #import "LeagueController.h"  
3. #import "WaitDialog.h"  
4. #import "JSONParser.h"  
5. #import "FunUtil.h"  
6.   
7. @implementation LeagueController  
8. @synthesize selectDate;  
9. @synthesize flag;  
10. @synthesize topToolBar;  
11. @synthesize mainView;  
12. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {  
13.     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];  
14.     if (self) {  
15.           
16.     }  
17.     return self;  
18. }  
19. -(id)initWithDate:(CFGregorianDate) date{  
20.     self = [super initWithNibName:nil bundle:nil];  
21.     if(self){  
22.         self.selectDate = date;  
23.         self.title = @"联赛选择";  
24.       
25.         NSArray *buttonNames = [NSArray arrayWithObjects:@"所有", @"一级", @"二级", nil];  
26.         topToolBar = [[UISegmentedControl alloc] initWithItems:buttonNames];  
27.         [topToolBar setFrame:CGRectMake(1, 1, 120, 30)];  
28.         topToolBar.selectedSegmentIndex = 0;  
29.         topToolBar.segmentedControlStyle = UISegmentedControlStyleBar;  
30.         [topToolBar addTarget:self action:@selector(selectFlag:) forControlEvents:UIControlEventValueChanged];  
31.         UIBarButtonItem *segButton = [[UIBarButtonItem alloc] initWithCustomView:topToolBar];  
32.         self.navigationItem.rightBarButtonItem = segButton;   
33.           
34.         self.mainView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];  
35.         [self.view addSubview:mainView];  
36.         [segButton release];  
37.         self.flag = 0;  
38.     }  
39.     return self;  
40. }  
41. -(void)removeAllView{  
42.     for(UIView *subView in [self.mainView subviews]){  
43.         [subView removeFromSuperview];  
44.     }  
45. }  
46. - (void)viewDidAppear:(BOOL)animated{  
47.     [super viewDidAppear:animated];  
48.     self.mainView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);  
49.     [[WaitDialog sharedWaitDialog] setLoadingLabel:@"加截数据..."];  
50.     [NSThread detachNewThreadSelector:@selector(fetchData) toTarget:self withObject:nil];  
51. }  
52. -(void)selectFlag:(UISegmentedControl *)Seg{  
53.     int index = Seg.selectedSegmentIndex;  
54.     self.flag = index;  
55.     [NSThread detachNewThreadSelector:@selector(fetchData) toTarget:self withObject:nil];  
56. }  
57. -(void) fetchData{  
58.     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];  
59.     [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;  
60.     NSString *date = [NSString stringWithFormat:@"%d-%d-%d",selectDate.year,selectDate.month,selectDate.day];  
61.     NSString *dataURL =@"";  
62.     NSArray *data = [JSONParser loadData:dataURL isAllValues:NO valueForKey:@"list"];  
63.     [self performSelectorOnMainThread:@selector(makeView:) withObject:data waitUntilDone:NO];  
64.     [pool release];  
65. }  
66. -(void)makeView:(NSArray*)data{  
67.     [self removeAllView];  
68.     [[WaitDialog sharedWaitDialog]endShowLoading];  
69.     if(data == nil || [data count]==0){  
70.         UILabel *nullData = [[UILabel alloc]initWithFrame:CGRectMake(10, 10, self.view.frame.size.width-20, 40)];  
71.         nullData.text = @"暂时没有数据";  
72.         nullData.backgroundColor = [UIColor clearColor];  
73.         nullData.font = [UIFont boldSystemFontOfSize:20];  
74.         [self.mainView addSubview:nullData];  
75.     }else{  
76.         int count = [data count];  
77.         int i = 0;  
78.         int x = 10;  
79.         int y = 10;  
80.         int cols = 3;  
81.         int width = self.view.frame.size.width/cols -20;  
82.         int height = 30;  
83.         int contentHeight = (height+y*2)*(count/cols);  
84.           
85.         int c = count/cols+1;  
86.         for(i = 0;i<c;i++){  
87.             NSArray *league = [data objectAtIndex:i];  
88.             UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];  
89.             btn.layer.cornerRadius = 5;  
90.             btn.layer.shadowOffset =  CGSizeMake(3, 5);  
91.             btn.layer.shadowOpacity = 0.8;  
92.             btn.layer.shadowColor =  [UIColor blackColor].CGColor;  
93.             btn.frame = CGRectMake(x, y, width, height);  
94.             btn.backgroundColor =  [FunUtil colorWithHexString:[league valueForKey:@"color"]];  
95.             [btn setTitleColor:[UIColor whiteColor ]forState:UIControlStateNormal];  
96.             [btn setTitle:[league valueForKey:@"cnName"] forState:UIControlStateNormal];  
97.             [btn setTag:[[league valueForKey:@"lid"] intValue]];  
98.             [btn addTarget:self action:@selector(selectLeague:) forControlEvents:UIControlEventTouchUpInside];  
99.             [btn addTarget:self action:@selector(buttonDown:) forControlEvents:UIControlEventTouchDown];  
100.             [self.mainView addSubview:btn];  
101.             y+=height+10;  
102.         }  
103.           
104.         contentHeight = (height+10)*c+10;  
105.         CGSize newSize = CGSizeMake(self.view.frame.size.width, contentHeight);  
106.         [self.mainView setContentSize:newSize];  
107.     }  
108. }  
109. -(void)selectLeague:(UIButton*)sender{  
110.     [sender setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];  
111.     sender.layer.shadowOffset =  CGSizeMake(3, 5);  
112.     sender.layer.shadowOpacity = 0.8;  
113.     sender.layer.shadowColor =  [UIColor blackColor].CGColor;  
114. }  
115. -(void)buttonDown:(UIButton*)sender{  
116.     [sender setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];  
117.     sender.layer.shadowOffset =  CGSizeMake(0,0);  
118.     sender.layer.shadowOpacity = 1;  
119.     sender.layer.shadowColor =  [UIColor blackColor].CGColor;  
120. }  
121. #pragma mark TableViewDataSource Methods  
122.   
123. - (void)dealloc {  
124.     [topToolBar release];  
125.     [mainView release];  
126.     [super dealloc];  
127. }  
128.   
129.   
130. @end