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- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx;有创建寄宿图吗？ #13

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walkdianzi opened this issue Sep 8, 2016 · 0 comments
Open

- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx;有创建寄宿图吗？ #13

walkdianzi opened this issue Sep 8, 2016 · 0 comments

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@walkdianzi
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你寄宿图那章说调用-drawRect:和- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx;都会创建寄宿图。我测试了一下在UIView（frame特别大）的时候重写-drawRect:内存急剧飙升确实应该产生了寄宿图。但是在测试layer的时候调用了- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx;内存并没有上升很多啊，感觉好像没有创建寄宿图的样子。
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@walkdianzi