Add support files

Author: eggswift

.travis.yml

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+language: objective-c
+osx_image: xcode7.3
+branches:
+  only:
+    - master
+    - develop
+env:
+  - LC_CTYPE=en_US.UTF-8 LANG=en_US.UTF-8
+before_install:
+  - gem install xcpretty -N
+script:
+  - set -o pipefail
+  - xcodebuild -project ESTabBarControllerExample/ESTabBarControllerExample.xcodeproj -scheme "ESTabBarControllerExample" -sdk iphonesimulator -destination "platform=iOS Simulator,name=iPhone 6" ONLY_ACTIVE_ARCH=NO  test | xcpretty -c
+  - pod lib lint --quick

ESTabBarController.podspec

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+
+Pod::Spec.new do |s|
+s.name              = "ESTabBarController"
+s.version           = "1.0.0"
+s.summary           = "An easy way to customize tabBarController and tabBarItem."
+s.description       = "Highly customizable tabBarController and tabBarItem, you can easily customize ui style or add animation etc . Using swift!"
+s.homepage          = "https://github.com/eggswift/ESTabBarController"
+
+s.license           = { :type => "MIT", :file => "LICENSE" }
+s.authors           = { "lihao" => "lihao_ios@hotmail.com"}
+s.social_media_url  = "https://github.com/eggswift/"
+s.platform          = :ios, "8.0"
+s.source            = {:git => "https://github.com/eggswift/ESTabBarController.git", :tag => "1.0.0"}
+s.source_files      = 'ESTabBarController/**/*.{swift}'
+s.requires_arc      = true
+end

ESTabBarController/ESTabBarBadge.swift

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+//
+//  ESTabBarBadge.swift
+//
+//  Created by egg swift on 16/4/7.
+//  Copyright (c) 2013-2016 ESPullToRefresh (https://github.com/eggswift/ESTabBarController)
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+//
+//  README.md
+//  通过设置badgeValue参数，实现TabBarItem上的单一小红点或带数字的小红点
+//  badgeValue为可选类型
+//  当badgeValue为nil时，内部处理成小圆点类型
+//  当badgeValue为""时，内部处理成小圆点类型
+//  当badgeValue为任意非空字符串时，内部处理成带数字的小圆点类型
+//  通过maximumSize设置字符串最大大小，超过截取
+//  通过minimumSize设置字符串最小大小，即只有红点情况
+
+import Foundation
+import UIKit
+
+public enum ESTabBarBadgeType {
+    case Default, Number
+}
+
+public class ESTabBarBadge: UIView {
+    public var maximumSize: CGSize = CGSize(width: 28.0, height: 16.0)
+    public var minimumSize: CGSize = CGSize(width: 6.0, height: 6.0)
+    public var badgeValue: String? {
+        didSet {
+            badgeLabel.text = badgeValue
+            updateSubviewsLayout()
+        }
+    }
+    private var badgeLabel: UILabel = {
+        let label = UILabel.init()
+        label.font = UIFont.systemFontOfSize(11.0)
+        label.textColor = UIColor.whiteColor()
+        label.textAlignment = .Center
+        return label
+    }()
+
+    private override init(frame: CGRect) {
+        super.init(frame: frame)
+        // 大红色
+        backgroundColor = UIColor.redColor()
+        // 添加Label
+        addSubview(badgeLabel)
+    }
+    
+    convenience init(frame: CGRect, type: ESTabBarBadgeType) {
+        var size: CGSize!
+        switch type {
+        case .Default:
+            size = CGSize(width: 6.0, height: 6.0)
+            break
+        case .Number:
+            //最小也得是圆的
+            size = CGSize(width: 16.0, height: 16.0)
+            break
+        }
+        self.init(frame: CGRect.init(origin: frame.origin, size: size))
+    }
+    
+    required public init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    
+    public override func didMoveToSuperview() {
+        super.didMoveToSuperview()
+        if superview != nil {
+            self.updateSubviewsLayout()
+        }
+    }
+    
+    public override func layoutSubviews() {
+        super.layoutSubviews()
+        if layer.cornerRadius != self.bounds.size.height / 2.0 {
+            layer.cornerRadius = self.bounds.size.height / 2.0
+        }
+    }
+
+    
+    func updateSubviewsLayout() {
+        var size = frame.size
+        if badgeValue?.characters.count > 0 {
+            size = badgeLabel.sizeThatFits(CGSize.init(width: CGFloat.max, height: self.frame.size.height))
+            size.width = ceil(min(maximumSize.width, max(maximumSize.height, size.width + 6.0)))
+            size.height = ceil(maximumSize.height)
+        } else {
+            size = self.minimumSize
+        }
+        /*
+        self.snp_remakeConstraints { (make) in
+            if let superview = superview {
+                make.top.equalTo(superview).offset(4.0)
+                make.centerX.equalTo(superview).offset(12)
+            }
+            make.size.equalTo(size)
+        }
+         */
+        setNeedsLayout()
+    }
+    
+}