五星评分显示器，可单纯展示评分，也可以用来打分，简单易用。
This is a five-star rating display, it can used to show rating and to score for something.
WNRatingBar can used to show rating and to score for something,Like the following example.
Write these code to podfile, then run pod install
platform :ios, '8.0'
use_frameworks!
target “PodDemo” do
pod ‘WNRatingBar’
end
Import this class WNRatingBar.swift and star-imgs.
ratingBar1 = WNRatingBar()
ratingBar1.frame = CGRect(x: explanationLab1.frame.origin.x, y: explanationLab1.frame.maxY + 10, width: 100, height: 40)
ratingBar1.setSeletedState("star_big1", halfSelectedName: "star_big2", fullSelectedName: "star_big3", starSideLength: 24, delegate: self)
ratingBar1.displayRating(currentValue)
self.view.addSubview(ratingBar1)Follow the RatingBarDelegate protocol at first.
ratingBar2 = WNRatingBar()
ratingBar2.frame = CGRect(x: explanationLab2.frame.origin.x, y: explanationLab2.frame.maxY + 10, width: 100, height: 40)
ratingBar2.setSeletedState("star_big1", halfSelectedName: "star_big2", fullSelectedName: "star_big3", starSideLength: 24, delegate: self)
ratingBar2.displayRating(0)
ratingBar2.isIndicator = false
self.view.addSubview(ratingBar2)//MARK:RatingBarDelegate
func ratingChanged(_ ratingBar: WNRatingBar, newRating: Float) {
if(ratingBar.tag == 2){
ratingValue = newRating
ratingLabel!.text = "\(ratingValue)"
}
}displayRating： Used to set the initial value of the score.
isIndicator：Is it an indicator， default is true，It is used to display and not used for scoring.