IOS: Two ways to implement UIView chamfer

Reprinted from: HTTP://WWW.JIANSHU.COM/P/451B7FA94E2A

The first kind: I think you see the code, the moment there is the urge to vomit, the most common one way ...

 uibutton *button = [[UIButton Alloc]init]; Button.frame  = CGRectMake (100 , 100 , 100 , 40   = [Uicolor Redcolor]; Button.layer.cornerRadius  = 20.0f  ; Button.layer.masksToBounds  = YES; 
 [Button Settitle:  @ "  test   "  Forstate:uicontrolstatenormal]; [Self.view Addsubview:button];   

So simple ... However, it is by default forced to cut off the four corners ah ... That's the problem, if the demand only requires cutting a corner ... Look at the second method.

The second: or in layer the fuss, the different use of the extension of the method, followed by the UIButton example, the specific effect to see:

#import "Uibutton+corner.h"@implementationUIButton (Corner)- (void) corner{cgrect bounds=Self.bounds; Uibezierpath*maskpath = [Uibezierpath bezierpathwithroundedrect:bounds byroundingcorners:uirectcornerbottomleft cornerRadii: Cgsizemake ( -, -)]; Cashapelayer*masklayer =[Cashapelayer layer]; Masklayer.frame=bounds; Masklayer.path=Maskpath.cgpath;    [Self.layer Addsublayer:masklayer]; Self.layer.mask=Masklayer;}@end

typedef ns_options (Nsuinteger, Uirectcorner) {    uirectcornertopleft     10,    uirectcornertopright     1 1 ,    Uirectcornerbottomleft  12,    13,    uirectcornerallcorners   = ~0UL};

 

IOS: Two ways to implement UIView chamfer