iOS 分析——假设 "self"非空

Question

我正在分析我的应用程序并遇到以下错误。有人可以帮帮我吗？

- (id)initWithLayer:(id)layer
{
    self = [super initWithLayer:layer];

    if (self)
    {
        [self setDefaults];

        MCNewCustomLayer *other = (MCNewCustomLayer*)layer;
        self.value              = other.value;
        self.textLabel          = other.textLabel;
        self.selectionStatus    = other.selectionStatus;
        self.animationDuration  = other.animationDuration;
        self.mainPath           = CGPathCreateMutableCopy(other.mainPath);
        self.fillColor          = CGColorCreateCopy(other.fillColor);
        self.strokeColor        = CGColorCreateCopy(other.strokeColor);
        self.mainPathImage      = other.mainPathImage;
        self.identifier         = other.identifier;
        self.parentLayeredView  = other.parentLayeredView;
        self.isAllowedToAnimate = other.isAllowedToAnimate;
        self.imageBoundsStyle   = other.imageBoundsStyle;

        self.isPresentationLayer  = YES;

    }

    return self;


}

警告信息是这样的:

假设'self'不为零

调用函数“CGPathCreateMutableCopy”返回一个保留计数为 +1 的 Core Foundation 对象

对象泄漏:已分配的对象稍后未在此执行路径中引用，保留计数为 +1

Answer 1

您想调用 CGPathRelease(other.mainPath); 来释放保留计数，这样您就不会发生内存泄漏。