iOS optimizes all shaded code in the project

1. Optimize all shaded code in the project

In the current project, especially in table cells, the following shading code is used to severely affect performance (reason for 5.2.5 Flight Query results page)

Self. CELLBG. Layer. Shadowcolor= [[Uicolor colorwithred:0.8Green0.8Blue0.8Alpha1] Cgcolor];Self. CELLBG. Layer. Shadowoffset= Cgsizemake (1,1);Self. CELLBG. Layer. Shadowopacity=0.5;Self. CELLBG. Layer. Shadowradius=2.0;

The optimization scheme is as follows:
Using Setshadowpath, Advantages: Resolve performance issues. Cons: Need to get to the width and height of the view, for adaptive cell

Shadowview. Layer. Shadowcolor= [Uicolor Redcolor]. Cgcolor;Shadowview. Layer. Shadowopacity=0.5;Shadowview. Layer. Shadowradius=1.0;Shadowview. Layer. Shouldrasterize= YES;Shadowview. Layer. Rasterizationscale= [UIScreen mainscreen]. scale;Cgpathref path = [Uibezierpath bezierpathwithrect:cgrectmake (0.5,3.5, Shadowview. Bounds. Size. Width, Shadowview. Bounds. Size. Height)]. Cgpath;[Shadowview. LayerSetshadowpath:path];

No use, no sense of consciousness.

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iOS optimizes all shaded code in the project