CCLabelTTF invisible issue in iOS 7.0

Question

I'm using cocos2d-x 2.0.4 for my game. CCLabelTTF works well on both of device and simulator in iOS 6. But when i test it in iOS 7.0, it doesn't work. Here is my code.

    int nScore = 10;
    char str[50];
    sprintf(str, "SCORE : %d", nScore);
    CCLabelTTF *lbl = CCLabelTTF::create(str, "Marker Felt", 50);
    lbl->setPosition(ccp(size.width*0.5, size.height*0.88));
    lbl->setColor(ccRED);
    this->addChild(lbl);

Score doesn't show now. But it shows in iOS 6. One more strange problem. If i change above code like this, it works.

    CCLabelTTF *lbl = CCLabelTTF::create("SCORE", "Marker Felt", 50);
    lbl->setPosition(ccp(size.width*0.5, size.height*0.88));
    lbl->setColor(ccRED);
    this->addChild(lbl);

But if i change this code like below again, it doesn't work.(invisible)

    CCLabelTTF *lbl = CCLabelTTF::create("Score", "Marker Felt", 50);
    lbl->setPosition(ccp(size.width*0.5, size.height*0.88));
    lbl->setColor(ccRED);
    this->addChild(lbl);

Maybe it's case sensitive issue.

Finally below code doesn't work too even if text is upper case. I only added number 10.

    CCLabelTTF *lbl = CCLabelTTF::create("SCORE : 10", "Marker Felt", 50);
    lbl->setPosition(ccp(size.width*0.5, size.height*0.88));
    lbl->setColor(ccRED);
    this->addChild(lbl);

Any help will be appreciate. Thanks in advance.

Answer 1

upgrade your cocos2d-x version it fixed in 3.0 and if you are using cocos2dx older version then change into CCimage.mm this statment

CGContextRef context = CGBitmapContextCreate(data,dim.width,dim.height, 8,dim.width * 4, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);

CGContextRef context = CGBitmapContextCreate(data, (size_t)dim.width, (size_t)dim.height, 8, (size_t)dim.width * 4, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);

Answer 2

I ran into this same problem while using cocos2d-x 2.1.3. I found this link stating that the issue is a bug that affects labels in iOS 7. In order to fix the issue, you'll need to either update the engine, or merge this pull request manually.