Question

我有一个像这样的场景：

MyScene（CClayer的子类）

的.m

+(CCScene *) sceneWithSprite:(CCSprite*)sback
{   
    return [[[self alloc] initWithSprite:sback] autorelease];
}

-(id) initWithSprite:(CCSprite*)sback
{    
    self = [super init];

      if (self) {

        self.spriteBack = sback;
        // sback is a sprite that comes from the previous scene

        // remove sback from that scene, so we can add it here
        [sback removeFromParentAndCleanup:NO];

        [self addChild:self.spriteBack z:-1];        

        CGSize windowSize = [[CCDirector sharedDirector] winSize];

        CGFloat midX = windowSize.width/2.0f;
        CGFloat midY = windowSize.height/2.0f;

        CCMenuItemLabel *menuItem1 = [CCMenuItemFont itemFromString:@"item 1" target:self selector:@selector(multi:)];
        CCMenuItemLabel *menuItem2 = [CCMenuItemFont itemFromString:@"item 2" target:self selector:@selector(multi:)];
        CCMenuItemLabel *menuItem3 = [CCMenuItemFont itemFromString:@"item 3" target:self selector:@selector(multi:)];

         CCMenu *menu = [CCMenu menuWithItems:menuItem1, menuItem2, menuItem3, nil];
        [menu alignItemsVertically];
        [self addChild:menu];   

        menu.position = ccp(midX, midY);
  }
return self;
}

我需要做一个淡出过渡。我使用

调用前一个场景

   CCScene *menu = [Menu sceneWithSprite:spriteBack];
    [[CCDirector sharedDirector] replaceScene: 
    [CCTransitionFadeDown transitionWithDuration:0.5f scene:menu]];

问题是转换发生黑色然后突然出现新场景。

有没有办法在没有黑色的情况下从当前场景转换到新场景？

感谢

Answer 1

试试CCTransitionCrossFade。如果您在交叉淡入淡出中间有一个淡入白色的问题，请参阅此主题：http://www.cocos2d-iphone.org/forum/topic/28949

Cocos2D iPhone - 在CCTransitions之间恼人的黑屏

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