一个星星评分的简单实现

Star.png

NAStarView.h

#import <UIKit/UIKit.h>

typedef void (^changeStar)(int starNum);

@interface NAStarView : UIView

@property (nonatomic, copy) changeStar selectedSatrNum;

+ (instancetype)starViewWithFrame:(CGRect)frame;

@end

NAStarView.m

#import "NAStarView.h"
#import "UIView+DDYExtension.h"

@interface NAStarView ()

@property (nonatomic, strong) NSMutableArray *allStar;

@end

@implementation NAStarView

+ (instancetype)starViewWithFrame:(CGRect)frame
{
    return [[self alloc] initWithFrame:frame];
}

- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        [self layoutContentView];
    }
    return self;
}

- (void)layoutContentView
{
    self.allStar = [[NSMutableArray alloc] init];
    
    for (int i = 0; i < 5; i++) {
        UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"StarNormal"]];
        imageView.frame = CGRectMake(((i+1)*25), 0, 25, 16);
        [self addSubview:imageView];
        imageView.contentMode = UIViewContentModeScaleAspectFit;
        [self.allStar addObject:imageView];
    }
}

#pragma mark 点击打分
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    CGPoint touchPoint = [[touches anyObject] locationInView:self];
    UIImageView *imgView;
    
    if ((touchPoint.x>0)&&(touchPoint.x<25*6)&&(touchPoint.y>0)&&(touchPoint.y <16))
    {
        for (int i=0; i<5; i++)
        {
            imgView = _allStar[i];
            if (imgView.ddy_x > touchPoint.x)
            {
                imgView.image = [UIImage imageNamed:@"StarNormal"];
            }
            else
            {
                imgView.image = [UIImage imageNamed:@"StarSelected"];
            }
        }
        if (self.selectedSatrNum) self.selectedSatrNum(((int)touchPoint.x)/25);
    }
}

使用

NAStarView *starV = [NAStarView starViewWithFrame:CGRectMake(CGRectGetMaxX(lab.frame)-5, point.y+2, 25*6, 16)];
[self.tableView.tableFooterView addSubview:starV];
__weak __typeof__(self) weakSelf = self;
starV.selectedSatrNum = ^(int starNum) {
  if (type == 1) weakSelf.conformityNum = starNum;
  else if (type == 2) weakSelf.logisticNum = starNum;
  else if (type == 3) weakSelf.serviceNum = starNum;
    };

附

• 星星评价视图
• 小数评分