ios開発——ノート編

 1 1: 
 2     BOOL isopen = !isopen; //View
 3     @property (nonatomic, assign) BOOL open;// 
 4     self.group.open = !self.group.isopen; //View View 
 5     retun model.open?model.friend.count:0
 6 
 7 2: 
 8     //View ——@interface 
 9     @class iCocosView
10     @protocol iCocosDelegate <NSObject>
11     @optional
12     -(void)headerView:(iCocosView *)view;
13     @end
14     //View 
15     @property (nonatomic, assign) id<iCocosDelegate> delegates;
16     // 
17     if([self.delegate respondsToSelector:@selector(headerView:)]) {
18         [self.delegate headerView:self];
19     }
20     // 
21     < >/x.delegate = self;
22     // 
23     -(void)headerView:(iCocosView *)view {
24         [self.tableView reloadData];
25     }
26 
27 3:Block
28     // Block
29     typedef void(^iCocosBlock) (id);
30     @property (nonatomic, copy) iCocosBlock block;
31     // Block
32     if(self.block) {
33         self.block(self);
34     }
35     // Block
36     header.block = ^(id sender) {
37         [self.tableView reloadData];
38     }
39 
40 4: 
41     // 
42     [[NSNotificationCenter defaultCenter] addobserver:self selector:@selector(click) name:@"friends" object:nil];
43     // 
44     -(void)click {
45         [self.tableView reloadData];
46     }
47     // 
48     [[NSNotificationCenter defaultCenter] postNotificationName:@"friends" object:self userInfo:nil];
49     // :( viewDidDisappear)
50     -(void)dealloc {
51         // ARC   [super dealloc];
52         [[NSNotificationCenter defaultCenter] removeObserver];
53     }