实现一个单例
2020-05-19 本文已影响0人
小小旭
话不多说,直接撸代码
//================== LogManager.h ==================
@interface LogManager : NSObject
+(instancetype)sharedInstance;
- (void)printLog:(NSString *)logMessage;
- (void)uploadLog:(NSString *)logMessage;
@end
//================== LogManager.m ==================
@implementation LogManager
static LogManager* _sharedInstance = nil;
+(instancetype)sharedInstance
{
static dispatch_once_t onceToken ;
dispatch_once(&onceToken, ^{
_sharedInstance = [[super allocWithZone:NULL] init] ;
}) ;
return _sharedInstance ;
}
+(id)allocWithZone:(struct _NSZone *)zone
{
return [LogManager sharedInstance] ;
}
-(id)copyWithZone:(struct _NSZone *)zone
{
return [LogManager sharedInstance];
}
-(id)mutableCopyWithZone:(NSZone *)zone
{
return [LogManager sharedInstance];
}
- (void)printLog:(NSString *)logMessage{
//print logMessage
}
- (void)uploadLog:(NSString *)logMessage{
//upload logMessage
}
@end