COCOS 2D iPhone-解析场景之间的变量并在图层中使用

Question

I have the code of calling a new scene with the variable:

    [[CCDirector sharedDirector] replaceScene:[GameScene sceneWithParam:item.tag]];

In GameScene.h

@interface GameScene : CCLayer {
}



+(id) sceneWithParam:(int)nvl;
@end

GameScene.m

+(id) sceneWithParam:(int)nvl
{
    CCScene *scene = [CCScene node];

    GameScene *layer = [GameScene node];

    [scene addChild: layer];

    return scene;

}


-(id) init
{

    if( (self=[super init] )) {



    }
    return self;
}

I can't use the variable nil inside if( (self=[super init] )) { I have already tried to set a property test , and to test = nvl; inside +(id) sceneWithParam:(int)nvl; test = nvl; inside +(id) sceneWithParam:(int)nvl; but it is not possible.

Answer 1

Yes, it's not possible to use dynamic parameters in static methods. If you want to create your object with parameters, you have to create an init method, receiving parameters you need. Eg:

-(id) initWithYourParam:(id)param
{
    if ( (self=[self init]) ) {
        self.propertyParam = param;
    }
    return self;
}