问题描述
在创建具有自定义形状的 Sprite Kit 物理实体时，我遇到了奇怪的内存泄漏.这是我的实现的样子:
I have a strange memory leaks when creating Sprite Kit physics bodies with custom shapes. This is how my implementation looks:
CGFloat offsetX = self.frame.size.width * self.anchorPoint.x;
CGFloat offsetY = self.frame.size.height * self.anchorPoint.y;
CGMutablePathRef path = CGPathCreateMutable();
CGPathMoveToPoint(path, NULL, 4 - offsetX, 3 - offsetY);
CGPathAddLineToPoint(path, NULL, 66 - offsetX, 3 - offsetY);
CGPathAddLineToPoint(path, NULL, 35 - offsetX, 57 - offsetY);
CGPathCloseSubpath(path);
self.physicsBody = [SKPhysicsBody bodyWithPolygonFromPath:path];
CGPathRelease(path);
一切都在 SKSpriteNode 方法内部进行.仪器告诉我在创建这样的主体后发生了几次内存泄漏:
Everything is going on inside SKSpriteNode method. Instruments tells me about several memory leaks after creating such bodies:
Leaked object:
Malloc 32 Bytes
Size:
32 Bytes
Responsible Library:
PhysicsKit
Responsible Frame:
std::__1::__split_buffer<PKPoint, std::__1::allocator<PKPoint>&>::__split_buffer(unsigned long, unsigned long, std::__1::allocator<PKPoint>&)
CGPathRelease(path); 行是必要的 - 没有它我会收到更多关于 CGPath 的内存泄漏，这是可以理解的.当我使用此实现时(出于测试目的):
The CGPathRelease(path); line is necessary - without it I'm getting more memory leaks about CGPath which is understandable. When I'm using this implementation instead (for testing purposes):
CGFloat radius = MAX(self.frame.size.width, self.frame.size.height) * 0.5f;
self.physicsBody = [SKPhysicsBody bodyWithCircleOfRadius:radius];
...一切正常，没有内存泄漏.我想知道这是 Sprite Kit 的错误还是我做错了什么.
...everything is working well, without memory leaks. I wonder if this is Sprite Kit bug or I'm doing something wrong.
推荐答案
这是精灵套件中的一个错误.您将不得不等待修复.
This is a bug in sprite kit. You will have to wait for a fix.
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