ios - Xcode Auto Layout with custom view -


i working on first project using auto layout , custom views. question this:

i created custom view in interface builder added constraints stretch view if needed working way want to, however, consider following code snippet custom view class -

// mycustomview

-(id)initwithcoder:(nscoder*)decoder {     self = [super initwithcoder:decoder];     if(self != nil)     {         cgfloat layerwidth = self.bounds.size.width;                 cgfloat layerheight = self.bounds.size.height;     }     return self; }

this code return size set in ib. drawing code relies on new width , height (if view has been stretched) don't know how retrieve them.

first, code utterly silly because creating variables layerwidth , layerheight , throwing them away, pointless.

second, self.bounds.size view's width , height. however, pointless ask in initwithcoder:, (as have rightly seen) happens long before view put interface , longer before auto layout takes place resizes it. if drawing code relies on bounds size, retrieve bounds size when draw. if need draw again because view has changed size, , if not happening itself, implement layoutsubviews tell view needs drawn again.


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