iphone - 手势识别星级评定系统

Question

我在 https://github.com/dlinsin/DLStarRating 使用了这个星级评分系统该手势工作正常，但它似乎没有正确使用委托(delegate)，因此当我选择一颗星时，评级不会刷新。这是我的代码:

.main 文件

- (void)viewDidLoad
{

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

    //check if value has been previously saved
    if( ![defaults stringForKey:@"username"] ) {        

        CustomerLogin *customerlogin = [[CustomerLogin alloc]
                                                  initWithNibName:@"CustomerLogin" bundle:nil];
        [self presentModalViewController:customerlogin animated:YES];
//        customerlogin.view.frame = CGRectMake(0, 0, 700, 900);
//      customerlogin.view.center = CGPointMake( 768/2, 1024/2);
        //[self.navigationController pushViewController:customerlogin animated:YES];

        [customerlogin release];


    }

    UIBarButtonItem * sortButton = [[UIBarButtonItem alloc] initWithTitle:@"Submit" style:UIBarButtonItemStyleBordered target:self action:@selector(Submit)];

    self.navigationItem.rightBarButtonItem = sortButton;
    [sortButton release];

    rating.delegate = self;
    comments.delegate = self;
    bestnight.delegate = self;

    UIColor *background = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"background_texture.png"]];

    self.view.backgroundColor = background;

    [background release];

    self.title = @"Write Review";

    [super viewDidLoad];

    //Star touch
    DLStarRatingControl *customNumberOfStars = [[DLStarRatingControl alloc] initWithFrame:CGRectMake(0,0, 320, 100) andStars:5];
    customNumberOfStars.backgroundColor = [UIColor clearColor];
    customNumberOfStars.autoresizingMask =  UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin;
    customNumberOfStars.rating = 3;
    [self.view addSubview:customNumberOfStars];
    [customNumberOfStars release];

}

-(void)newRating:(DLStarRatingControl *)control :(NSUInteger)rating 
{
    self.rating.text = [NSString stringWithFormat:@"%d star rating",rating];
}

.头文件

#import "DLStarRatingControl.h"

@class Customer;
@class Place;

@interface CreateReview : UIViewController <UITextFieldDelegate,UITextViewDelegate,DLStarRatingDelegate>
{
    Customer*customer;
    Place*place;
    IBOutlet UITextField * bestnight;
    IBOutlet UITextView * comments;
    IBOutlet UITextField * rating;
    IBOutlet UILabel * testValueLabel;

    NSString * identifier;
    NSString * password;
    NSString * username;


}

@property (nonatomic, retain) IBOutlet UITextField * bestnight;
@property (nonatomic, retain) IBOutlet UITextView * comments;
@property (nonatomic, retain) IBOutlet UITextField * rating;
@property (nonatomic, retain) Customer*customer;
@property (nonatomic, retain) Place*place;
@property (nonatomic, retain) IBOutlet UILabel * testValueLabel;
@property (nonatomic, retain) NSString * identifier;
@property (nonatomic, retain) NSString * password;
@property (nonatomic, retain) NSString * username;

-(id)initWithPlace:(Place*)p;
-(void)newRating:(DLStarRatingControl *)control :(NSUInteger)rating;


@end

Answer 1

看来您没有为 DLStarRatingControl 设置委托(delegate):

尝试在设置评分控件时添加 customNumberOfStars.delegate = self;