這兩天項(xiàng)目有個(gè)需求是用戶評(píng)價(jià)分?jǐn)?shù)(0-5)用星星多少來展示
自己自定義了一個(gè)UIView控件來顯示,代碼如下:
.h文件:
@class ZPMyStarShow;
/** *? 星級(jí)評(píng)分條代理 */
@protocol ZPMyStarShowDelegate/**
*? 評(píng)分改變
*? @param ratingBar 評(píng)分控件
*? @param newRating 評(píng)分值
*/
- (void)ratingBar:(ZPMyStarShow *)ratingBar ratingChanged:(float)newRating;
@end
以上是代理方法
@interface ZPMyStarShow : UIView
/** *? 初始化設(shè)置未選中圖片、半選中圖片帮寻、全選中圖片，以及評(píng)分值改變的代理（可以用 *? Block）實(shí)現(xiàn) *
* @param deselectedName? 未選中圖片名稱?
*? @param halfSelectedName 半選中圖片名稱
?*? @param fullSelectedName 全選中圖片名稱?
*? @param delegate? ? ? ? ? 代理 */
? ? ? ? - (void)setImageDeselected:(NSString *)deselectedName halfSelected:(NSString *)halfSelectedName fullSelected:(NSString *)fullSelectedName andDelegate:(id)delegate;
/**
*? 是否是指示器阱佛，如果是指示器余耽，就不能滑動(dòng)了善榛，只顯示結(jié)果辩蛋，不是指示器的話就能滑動(dòng)修改值
*? 默認(rèn)為NO
*/
@property (nonatomic,assign) BOOL isIndicator;
/**
*? 當(dāng)前應(yīng)顯示的星星數(shù)
*? 默認(rèn)設(shè)置是0
*/
@property (assign, nonatomic) CGFloat starRating;
.m文件:
@interface ZPMyStarShow (){? ??
? ? ? ? float _lastRating;? ? ? ??
? ? ? ? float height;? ?
? ? ? ?float width;? ? ? ??
? ? ? ?UIImage *unSelectedImage;? ??
? ? ? ?UIImage *halfSelectedImage;? ??
? ? ? ?UIImage *fullSelectedImage;
}
@property (nonatomic,strong) UIImageView *s1;
@property (nonatomic,strong) UIImageView *s2;
@property (nonatomic,strong) UIImageView *s3;
@property (nonatomic,strong) UIImageView *s4;
@property (nonatomic,strong) UIImageView *s5;
@property (nonatomic,weak) id delegate;
@end
@implementation ZPMyStarShow
/**
?*? 初始化設(shè)置未選中圖片、半選中圖片移盆、全選中圖片悼院，以及評(píng)分值改變的代理（可以用 *? Block）實(shí)現(xiàn) ?
*? @param deselectedName? 未選中圖片名稱?
*? @param halfSelectedName 半選中圖片名稱?
*? @param fullSelectedName 全選中圖片名稱 *??
@param delegate? ? ? ? ? 代理?
*/
-(void)setImageDeselected:(NSString *)deselectedName halfSelected:(NSString *)halfSelectedName fullSelected:(NSString *)fullSelectedName andDelegate:(id)delegate{
? ? ? ? self.delegate = delegate;
? ? ? ? unSelectedImage = [UIImage imageNamed:deselectedName];
? ? ? ? halfSelectedImage = halfSelectedName == nil ? unSelectedImage : [UIImage imageNamed:halfSelectedName];
? ? ? ? fullSelectedImage = [UIImage imageNamed:fullSelectedName];
? ? ? ?height = 0.0,width = 0.0;
? ? ? ?if (height < [fullSelectedImage size].height) {
? ? ? ? ? ? ? ?height = [fullSelectedImage size].height;
? ? ? ? }
? ? ? ?if (height < [halfSelectedImage size].height) {
? ? ? ? ? ? ? height = [halfSelectedImage size].height;
? ? ? ?}
? ? ? if (height < [unSelectedImage size].height) {
? ? ? ? ? ? ?height = [unSelectedImage size].height;
? ? ? }
? ? ? if (width < [fullSelectedImage size].width) {
? ? ? ? ? ?width = [fullSelectedImage size].width;
? ? ? }
? ? ? if (width < [halfSelectedImage size].width) {
? ? ? ? ? ? ?width = [halfSelectedImage size].width;
? ? ? }
? ? ? ?if (width < [unSelectedImage size].width) {
? ? ? ? ? ? ? width = [unSelectedImage size].width;
? ? ? ?}
? ? ? ?_s1 = [[UIImageView alloc] initWithImage:unSelectedImage];
? ? ? ?_s2 = [[UIImageView alloc] initWithImage:unSelectedImage];
? ? ? ?_s3 = [[UIImageView alloc] initWithImage:unSelectedImage];
? ? ? _s4 = [[UIImageView alloc] initWithImage:unSelectedImage];
? ? ? _s5 = [[UIImageView alloc] initWithImage:unSelectedImage];
? ? ? ?[_s1 setFrame:CGRectMake(0,? ? ? ? 0, width, height)];
? ? ? [_s2 setFrame:CGRectMake(width,? ? 0, width, height)];
? ? ? [_s3 setFrame:CGRectMake(2 * width, 0, width, height)];
? ? ? [_s4 setFrame:CGRectMake(3 * width, 0, width, height)];
? ? ? [_s5 setFrame:CGRectMake(4 * width, 0, width, height)];
? ? ? [_s1 setUserInteractionEnabled:NO];
? ? ? ?[_s2 setUserInteractionEnabled:NO];
? ? ? ? [_s3 setUserInteractionEnabled:NO];
? ? ? ?[_s4 setUserInteractionEnabled:NO];
? ? ? [_s5 setUserInteractionEnabled:NO];
? ? ? ?[self addSubview:_s1];
? ? ? ?[self addSubview:_s2];
? ? ? ?[self addSubview:_s3];
? ? ? ?[self addSubview:_s4];
? ? ? ?[self addSubview:_s5];
? ? ? ?CGRect frame = [self frame];
? ? ? ?frame.size.width = width * 5;
? ? ? ?frame.size.height = height;
? ? ? ?[self setFrame:frame];
? ? ? ?_starRating = 0.0;
? ? ? ?_lastRating = 0.0;
}
//外部傳入評(píng)分值
-(void)setStarRating:(CGFloat)starRating{
? ? ? ? _starRating = starRating;
? ? ? ? _lastRating = starRating;
? ? ? ? [self displayRating:starRating]; ?
}
/**
*? 設(shè)置評(píng)分值,顯示相應(yīng)的星星
*? @param rating 評(píng)分值
*/
-(void)displayRating:(float)rating{
? ? ? ? ?[_s1 setImage:unSelectedImage];
? ? ? ? ?[_s2 setImage:unSelectedImage];
? ? ? ? [_s3 setImage:unSelectedImage];
? ? ? ? [_s4 setImage:unSelectedImage];
? ? ? ? [_s5 setImage:unSelectedImage];
? ? ? ? if (rating >= 0.5) {
? ? ? ? ? ? ? ? [_s1 setImage:halfSelectedImage];
? ? ? ? }
? ? ? ? if (rating >= 1) {
? ? ? ? ? ? ? ?[_s1 setImage:fullSelectedImage];
? ? ? ?}
? ? ? ?if (rating >= 1.5) {
? ? ? ? ? ? ? [_s2 setImage:halfSelectedImage];
? ? ? ?}
? ? ? if (rating >= 2) {
? ? ? ? ? ? ? ?[_s2 setImage:fullSelectedImage];
? ? ? }
? ? ? if (rating >= 2.5) {
? ? ? ? ? ? ? [_s3 setImage:halfSelectedImage];
? ? ? }
? ? ? if (rating >= 3) {
? ? ? ? ? ? ? [_s3 setImage:fullSelectedImage];
? ? ? }
? ? ? if (rating >= 3.5) {
? ? ? ? ? ? ? [_s4 setImage:halfSelectedImage];
? ? ? ?}
? ? ? ?if (rating >= 4) {
? ? ? ? ? ? ? [_s4 setImage:fullSelectedImage];
? ? ? ?}
? ? ? ?if (rating >= 4.5) {
? ? ? ? ? ? ?[_s5 setImage:halfSelectedImage];
? ? ? ?}
? ? ? if (rating >= 5) {
? ? ? ? ? ? ?[_s5 setImage:fullSelectedImage];
? ? ? }
? ? ? if ([self respondsToSelector:@selector(ratingBar:ratingChanged:)]) {
? ? ? ? ? ? [_delegate ratingBar:self ratingChanged:rating];
? ? ? ?}
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
? ? ? ? ? ? [super touchesBegan:touches withEvent:event];
}
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
? ? ? ? ? ?[super touchesEnded:touches withEvent:event];
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
? ? ? ? ? if (self.isIndicator) {
? ? ? ? ? ? ? ? ?return;
? ? ? ? ?}
? ? ? ? CGPoint point = [[touches anyObject] locationInView:self];
? ? ? ? ?int newRating = (int) (point.x / width) + 1;
? ? ? ? ?if (newRating > 5)
? ? ? ? ? ? ? ? ?return;
? ? ? ? ? ?if (point.x < 0) {
? ? ? ? ? ? ? ? ?newRating = 0;
? ? ? ? ? ? }
? ? ? ? ? ?if (newRating != _lastRating){
? ? ? ? ? ? ? ? ?[self displayRating:newRating];
? ? ? ? ? ?}
}
直接拷貝.h和.m文件就可以使用,- (void)setImageDeselected:(NSString *)deselectedName halfSelected:(NSString *)halfSelectedName fullSelected:(NSString *)fullSelectedName andDelegate:(id)delegate,在此方法里設(shè)置顯示星星的圖片和代理,然后設(shè)置isIndicator的值為YES,則只是顯示器,不能滑動(dòng)改變星星顯示,默認(rèn)值是NO,設(shè)置starRating為2.0,則顯示兩個(gè)點(diǎn)亮的星星,默認(rèn)值是0.0,即不顯示點(diǎn)亮的星星.
