v1.2.4 add CYLPlusButtonWidthto let user access the plus button width

Author: ChenYilong

CYLTabBarController.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "CYLTabBarController"
-  s.version      = "1.2.3"
+  s.version      = "1.2.4"
   s.summary      = "Highly customizable tabBar and tabBarController for iOS"
   s.description  = "CYLTabBarController is iPad and iPhone compatible. Supports landscape and portrait orientations and can be used inside UINavigationController."
   s.homepage     = "https://github.com/ChenYilong/CYLTabBarController"

CYLTabBarController.xcodeproj/project.xcworkspace/xcuserdata/chenyilong.xcuserdatad/UserInterfaceState.xcuserstate

@@ -34,7 +34,7 @@
 
 @class CYLTabBar;
 
-extern UIButton<CYLPlusButtonSubclassing> *CYLExternPlusButton;
+FOUNDATION_EXTERN UIButton<CYLPlusButtonSubclassing> *CYLExternPlusButton;
 
 @interface CYLPlusButton : UIButton
 

CYLTabBarController/CYLPlusButton.h

@@ -9,6 +9,8 @@
 #import "CYLPlusButton.h"
 #import "CYLTabBarController.h"
 
+CGFloat CYLPlusButtonWidth = 0.0f;
+
 UIButton<CYLPlusButtonSubclassing> *CYLExternPlusButton = nil;
 
 @implementation CYLPlusButton
@@ -19,7 +21,9 @@ @implementation CYLPlusButton
 + (void)registerSubclass {
     if ([self conformsToProtocol:@protocol(CYLPlusButtonSubclassing)]) {
         Class<CYLPlusButtonSubclassing> class = self;
-        CYLExternPlusButton = [class plusButton];
+        UIButton<CYLPlusButtonSubclassing> *plusButton = [class plusButton];
+        CYLExternPlusButton = plusButton;
+        CYLPlusButtonWidth = plusButton.frame.size.width;
     }
 }
 

CYLTabBarController/CYLPlusButton.m

@@ -50,8 +50,7 @@ - (void)layoutSubviews {
     }
     CGFloat barWidth = self.frame.size.width;
     CGFloat barHeight = self.frame.size.height;
-    CGFloat widthOfPlusButton = CGRectGetWidth(self.plusButton.frame);
-    CGFloat tabBarButtonW = (barWidth - widthOfPlusButton) / CYLTabbarItemsCount;
+    CGFloat tabBarButtonW = (barWidth - CYLPlusButtonWidth) / CYLTabbarItemsCount;
     NSInteger buttonIndex = 0;
     CGFloat multiplerInCenterY;
     if ([[self.plusButton class] respondsToSelector:@selector(multiplerInCenterY)]) {
@@ -102,7 +101,7 @@ - (void)layoutSubviews {
         if ([childView isKindOfClass:NSClassFromString(@"UITabBarButton")]) {
             CGFloat childViewX;
             if (buttonIndex >= plusButtonIndex) {
-                childViewX = buttonIndex * tabBarButtonW + widthOfPlusButton;
+                childViewX = buttonIndex * tabBarButtonW + CYLPlusButtonWidth;
             } else {
                 childViewX = buttonIndex * tabBarButtonW;
             }

CYLTabBarController/CYLTabBar.m

@@ -7,12 +7,14 @@
 //
 
 @import Foundation;
+@import UIKit;
 
 static NSString * const CYLTabBarItemTitle = @"tabBarItemTitle";
 static NSString * const CYLTabBarItemImage = @"tabBarItemImage";
 static NSString * const CYLTabBarItemSelectedImage = @"tabBarItemSelectedImage";
 
-extern NSUInteger CYLTabbarItemsCount;
+FOUNDATION_EXTERN NSUInteger CYLTabbarItemsCount;
+FOUNDATION_EXTERN CGFloat CYLPlusButtonWidth;
 
 @import UIKit;
 

CYLTabBarController/CYLTabBarController.h

@@ -138,8 +138,7 @@ + (void)customizeTabBarAppearance:(CYLTabBarController *)tabBarController {
     // Set the dark color to selected tab (the dimmed background)
     // TabBarItem选中后的背景颜色
     NSUInteger allItemsInTabBarCount = [CYLTabBarController allItemsInTabBarCount];
-    [[UITabBar appearance] setSelectionIndicatorImage:[self imageFromColor:[UIColor yellowColor] forSize:CGSizeMake([UIScreen mainScreen].bounds.size.width / allItemsInTabBarCount, 49.f) withCornerRadius:0]];
-    
+    [[UITabBar appearance] setSelectionIndicatorImage:[self imageFromColor:[UIColor yellowColor] forSize:CGSizeMake(([UIScreen mainScreen].bounds.size.width - CYLPlusButtonWidth) / (allItemsInTabBarCount - 1), 49.f) withCornerRadius:0]];
     // set the bar background color
     // 设置背景图片
     // UITabBar *tabBarAppearance = [UITabBar appearance];

Example/CYLTabBarControllerConfig.m

@@ -273,6 +273,7 @@ pod update
 
  > 即使加号按钮超出了tabbar的区域，超出部分依然能响应点击事件
 
+并且你可以在项目中的任意位置读取到 `PlusButton` 的宽度，借助 `CYLTabBarController.h` 定义的 `CYLPlusButtonWidth` 这个extern。可参考 `+[CYLTabBarControllerConfig customizeTabBarAppearance:]` 里的用法。
 
 ### 补充说明