ios - CCLabelTTF 文本对齐

Question

我有一个模仿按钮的类。它包含一个标签，我试图将其居中对齐(水平)。无论我尝试什么，标签都停留在左侧，让我认为这比看起来更复杂。这是唯一的初始化/设置代码:

-(CCButtonLayer*)initWithText:(NSString*)text bgColor:(ccColor4B)color width:(GLfloat)width height:(GLfloat)height {
    self = [super initWithColor:color width:width height:height];
    self.lbl = [CCLabelTTF labelWithString:text fontName:@"Marker Felt" fontSize:22];
    self.lbl.horizontalAlignment = kCCTextAlignmentCenter;
    [self.lbl setHorizontalAlignment:kCCTextAlignmentCenter];
    self.lbl.color = ccc3(0,0,0);
 //   self.lbl.contentSize = CGSizeMake(width, height); // no effect anyway
    self.lbl.anchorPoint = CGPointZero;
    self.lbl.position = CGPointZero;
    [self addChild:self.lbl];
    return self;
}

Answer 1

我删除了标签的对齐属性并手动对齐它。显然，我看不到的事情正在发生，也许正如你所说@LearnCocos2D 还有另一个偏移量

// this worked
CGSize textSize = [self.lbl.string sizeWithFont:[UIFont fontWithName:fontName size:fontSize]];
self.lbl.anchorPoint = CGPointZero;
self.lbl.position = ccp(textSize.width /2.0f, textSize.height/2.0);