以编程方式添加CCButton

Question

I am trying to adding CCButton in my Scene. I am using Sprite builder.Here is my code.

CCButton *btnTest = [[CCButton alloc]initWithTitle:@"BNB test"];
    [btnTest.label setName:@"Test"];
    btnTest.position = ccp(150.0f, 150.0f);

    [self addChild:btnTest];

It's not showing on the scene. What may be the reason?

Answer 1

try this way,i used it for back button ,below code it work fine:

CCButton *backButton = [CCButton buttonWithTitle:@"[ Back ]" fontName:@"Verdana-Bold" fontSize:18.0f];
backButton.positionType = CCPositionTypeNormalized;
backButton.position = ccp(0.95f, 0.95f); // Top Right of screen
[backButton setTarget:self selector:@selector(BackClicked:)];
[self addChild:backButton];

may it will help you...

Happy coding... :)

Answer 2

The interface on CCButton was a bit not smooth IMHO so I wrote a category.

@implementation CCButton (additions)
+(id)buttonWithImagenamed:(NSString*)imagename block:(void(^)(id sender))block {
    CCSpriteFrame* spriteframe = [CCSpriteFrame frameWithImageNamed:imagename];
    NSAssert(spriteframe != nil, @"nil spriteframe for imagename: %@", imagename);
    CCButton* button = [CCButton buttonWithTitle:@"" spriteFrame:spriteframe];
    button.block = block;
    return button;
}
@end

This needs to be emphasized: "imagename" must be relative, so if you put it into a folder like "graphics/myimage.png", you need to specify @"graphics/myimage.png" in code. Only @"myimage.png" will NOT work in this case.