从另一个对象调用方法

Question

以下示例代码。基本上，在下面的代码中，Game创建了一组名为DragView的对象。触发touchesBegin时，从这些DragView对象中，我需要它回调游戏中的adjustScore方法来调整分数。

@interface Game : UIViewController
{
}
@end

@Implementation Game

DragView *dragger;

- (void)loadView
{
dragger = [[DragView alloc] initWithFrame:dragRect];  
    //simplified...code actually makes lots of these
}

+ (void) adjustScore
 {
NSLog(@"This is called from within DragView");
//does some more stuff…
}


@end


@interface DragView : UIImageView
{
CGPoint startLocation;
}
@end

@implementation DragView

- (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event
{   
NSLog(@"Touched");

///// help needed here to call "adjustScore" in Game above /////

} 

Answer 1

adjustScore是一种类方法。只需使用：

[Game adjustScore];