dispatch_block_t只要在.h 头文件定义属性方法 @property (nonatomic,copy) dispatch_block_t leftBlockAction; 在.m文件 调用的方法里调用 if(self.leftBlockAction) { self.leftBlockAction(); } 在另个模块里直接 MyAlertView *alert =[[MyAlertView alloc]init]; alert.leftBlockAction= ^() { NSLog(@...
typedef void (^dispatch_block_t)(void); Discussion Blocks behave like other Objective-C objects. Under ARC, the system releases and retains them automatically, and it converts them to malloc blocks as needed to facilitate their escape from the current scope of execution. When ARC is disabled,...
/** 左边Item点击 */@property(nonatomic,copy) dispatch_block_t leftItemClickBlock;/** 右边Item点击 */@property(nonatomic,copy) dispatch_block_t rightItemClickBlock;/** 搜索按钮点击点击 */@property(nonatomic,copy) dispatch_block_t searchButtonClickBlock; 在.m 文件 扩展中申明 @interfaceClassName...
void dispatch_barrier_async(dispatch_queue_t queue, dispatch_block_t block); 参数 名称 类型 描述 queue dispatch_queue_t 目标队列。 block dispatch_block_t 任务。 返回 类型 描述 void - dispatch_apply_f dispatch_barrier_async_f 意见反馈 以上内容对您是否有帮助? 意见反馈 如果您有其他疑问,您...
同步地提交一个barrier任务到目标队列上。dispatch_barrier_async的同步版本。 函数原型 收起 深色代码主题 复制 void dispatch_barrier_sync(dispatch_queue_t queue, dispatch_block_t block); 参数 名称 类型 描述 queue dispatch_queue_t 目标队列。 block dispatch_block_t 任务。 返回 类型 描述 void - di...
API_AVAILABLE(macos(10.6),ios(4.0))DISPATCH_EXPORTDISPATCH_NONNULL1DISPATCH_NOTHROWvoiddispatch_source_set_event_handler(dispatch_source_t source,dispatch_block_t _Nullable handler); 滑动显示更多 源事件设置数据 将数据合并到类型为DISPATCH_SOURCE_TYPE_DATA_ADD的分派源中, ...
void dispatch_async_and_wait(dispatch_queue_t queue, dispatch_block_t block); Parameters queue The queue on which to submit the block. This parameter cannot be NULL. block The block that contains the work to perform. This block has no return value and no parameters. This parameter cannot...
voidaverage_async(int*data,size_t len,dispatch_queue_t queue,void(^block)(int)){// Retain the queue provided by the user to make// sure it does not disappear before the completion// block can be called.dispatch_retain(queue);// Do the work on the default concurrent queue and then//...
#防弹少年团[超话]# 成员#金泰亨[超话]# 出演tvN综艺《You Quiz on the Block》,目前拍摄已经结束了,预计将于下月6日播出。
voiddispatch_once(dispatch_once_t*val,dispatch_block_tblock){ dispatch_once_f(val, block, _dispatch_Block_invoke(block)); } dispatch_once封装调用了dispatch_once_f函数,其中通过_dispatch_Block_invoke来执行block任务,它的定义如下: //invoke是指触发block的具体实现,感兴趣的可以看一下Block_layout的结...