Question

我正在创建collectionView，并且在每个单元格中我都在水平创建几个按钮，但这些按钮没有响应我的目标选择器。

这是我的代码。

ImplementationView.h

-(IBAction)tagClicked:(UIButton*)sender;

在ImplementationView.m

中

-(void)configureScrapCell:(UICollectionViewCell*) cell forScrapDict:(ScrapDictionary *)dict forIndexPath:(NSIndexPath*){

UIView *tagView = (UIView*)[cell viewWithTag:17];
UIView *layerTagView = (UIView*)[cell viewWithTag:18];
CGFloat x = 0.0;

if (layerTagView) {
    [layerTagView removeFromSuperview];
  }
   layerTagView = [[UIView alloc] init];
   layerTagView.tag = 18;
   [tagView addSubview:layerTagView];

   if ([dict.SDtags count]>0) {
        int tagIndex = 1;
        for (NSString *tag in dict.SDtags) {
            CGSize width = [tag sizeWithFont:[UIFont systemFontOfSize:16]];
                UIButton *scrapTag = [[UIButton alloc]initWithFrame:CGRectMake(x, 0,100, 30)];
        [scrapTag setBackgroundColor:[UIColor greenColor]];
        [scrapTag.titleLabel setFont:[UIFont systemFontOfSize:14]];
    //  [scrapTag setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
    if (brightness > 150) {
         [scrapTag setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
     }else {        
         [scrapTag setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    }
         [scrapTag setTitle:[NSString stringWithFormat:@" #%@",tag] forState:UIControlStateNormal];
    //   [scrapTag sizeToFit];

         [scrapTag setUserInteractionEnabled:YES];
         tagIndex++;
         NSString *tagString = @"";
         tagString = [tagString stringByAppendingString:tag];
         if ([tagString length]>32 || tagIndex>4) {
            break;
       }
 [scrapTag addTarget:self action:@selector(tagClicked:) forControlEvents:UIControlEventTouchUpInside];
      [layerTagView addSubview:scrapTag];
    NSLog(@"%f",scrapTag.frame.size.width);
    //  scrapTag.frame = CGRectMake(x, scrapTag.frame.origin.y, tagView.frame.size.width, 30);
                x += scrapTag.frame.size.width +2; 
            }
        }
         [tagView setBackgroundColor:[UIColor colorWithRed:red/255.0f green:green/255.0f blue:blue/255.0f alpha:0.5]];
        [layerTagView setBackgroundColor:[UIColor colorWithRed:red/255.0f green:green/255.0f blue:blue/255.0f alpha:0.5]];

现在在我正在定义这些按钮Clicked的动作的不同类中。 ImplementationView类充当NewClass的委托。

NewClass.h

#import ImplementationView.h
@interface NewClass : ImplementationView

NewClass.m

-(IBAction)tagClicked:(UIButton *)sender {
    [[[UIAlertView alloc]initWithTitle:@"LOL" message:[NSString stringWithFormat:@"%@",sender.titleLabel.text] delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]show ];

    NSLog(@"testing tag clicked");
}

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Answer 1

您的按钮不在layerTagView边界上。您需要设置layerTagView框架/大小。在您的代码中，layerTagView的大小为（0,0）。要检查我的建议，您可以将masksToBounds设置为YES或将layerTagView的背景颜色更改为蓝色或任何其他颜色。

tagView.layer.masksToBounds = YES;
layerTagView.layer.masksToBounds = YES;

UIButton没有响应我对collectionView单元的触摸？

1 个答案: