<FSSearchCancelCallback>协议 参考

继承自 <NSObject> .

构造函数
(BOOL)	- needToCancelNow
	A callback function used to check whether to cancel the searching process or not. 更多...

详细描述

This class represents a callback object which can be used to cancel a searching process. All the pure virtual functions in this class are used as callback functions and should be implemented by user.

函数文档

needToCancelNow()

- (BOOL) needToCancelNow

required

A callback function used to check whether to cancel the searching process or not.

返回

YES means the searching process needs to be canceled, while NO means the searching process does not need to be canceled.