프로그래밍/iOS,macOS
싱글톤
chance
2016. 10. 19. 12:21
싱글톤
+(id) instance
{
static dispatch_once_t pred;
static MyClass *obj=nil;
dispatch_once(&pred, ^{
obj = [[MyClass alloc] init];
});
return obj;
}
class MyClass
{
static let instance = MyClass();
}