标签:dispatch 带来 pre second nbsp tom copy assign lock
Xcode的代码片段(Code Snippets)创建自定义的代码片段,当你重用这些代码片段时,会给你带来很大的方便。
1.strong:@property (nonatomic,strong) <#Class#> *<#object#>;
2.weak:@property (nonatomic,weak) <#Class#> *<#object#>;
3.copy:@property (nonatomic,copy) NSString *<#string#>;
4.assign:@property (nonatomic,assign) <#Class#> <#property#>;
5.delegate:@property (nonatomic,weak) id<<#protocol#>> <#delegate#>;
6.block:@property (nonatomic,copy) <#Block#> <#block#>;
7.mark:#pragma mark <#mark#>
8.ReUseCell:
static NSString *rid=<#rid#>;
<#Class#> *cell=[tableView dequeueReusableCellWithIdentifier:rid]; if(cell==nil){ cell=[[<#Class#> alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:rid]; } return cell;
9.MainGCD:
dispatch_async(dispatch_get_main_queue(), ^{ <#code#> });
10.AfterGCD:
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(<#delayInSeconds#> * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ <#code to be executed after a specified delay#> });
11.OnceGCD:
static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ <#code to be executed once#> });
标签:dispatch 带来 pre second nbsp tom copy assign lock
原文地址:http://www.cnblogs.com/liaolijun/p/7562318.html