Iphone 正在获取选定或点击图像的NSMutableArray中的索引

我正在开发一个应用程序，将图像添加到

NSMutableArray

，并在图像视图中显示它们

我的问题是，我不知道如何在我的应用程序中获取所选或点击图像的索引

FrontsCards=[[NSMutableArray alloc]initWithObjects:@"cloub1.png",@"cloub2.png",@"cloub3.png",@"cloub4.png", nil];

for(int m=0; m< [FrontsCards count];m++)
{
    NSString *imageName=[FrontsCards objectAtIndex:m];

    NSString *fullImageName=[NSString stringWithFormat:@"%@",imageName];

    int padding=25;

    CGRect imageViewFrame=CGRectMake(scrollView.frame.size.width*m+padding, scrollView.frame.origin.y, scrollView.frame.size.width-2*padding, scrollView.frame.size.height);

    ImgView=[[UIImageView alloc]initWithFrame:imageViewFrame];

    [ImgView setImage:[UIImage imageNamed:fullImageName]];

    [ImgView setContentMode:UIViewContentModeScaleAspectFill];


    [scrollView addSubview:ImgView];


    UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTapImgView:)];
    doubleTap.numberOfTapsRequired = 2;
    doubleTap.delegate = self;

    [self.ImgView addGestureRecognizer:doubleTap];

    self.ImgView.userInteractionEnabled=YES;    
}


CGSize scrollViewSize=CGSizeMake(scrollView.frame.size.width*[FrontsCards count], scrollView.frame.size.height);
[scrollView setContentSize:scrollViewSize];
[self.view addSubview:scrollView];

---

为使用的每个imageView设置一个标记，如下所示：

ImgView=[[UIImageView alloc]initWithFrame:imageViewFrame];
ImgView.tag = m;

然后替换此方法：

- (void)doubleTapImgView:(UITapGestureRecognizer *)gesture
{
     NSLog(@"double-tap");
     NSLog(@"%d", gesture.view.tag);
}

---

它将在图像视图中打印图像的索引

也许您可以使用以下方法：

first add the name of the image as the accessibilityIdentifier of the the imageview
[imgView setAccessibilityIdentifier:imageName];

然后在Tap识别器中：

-(void)doubleTapImgView:(UITapGestureRecognizer *)gesture{
    UIImageView *imgView = (UIImageView *)gesture.view;
     int idx = [FrontCards indexOfObject:[imgView accessibilityIdentifier]];
}

---

如果您想支持我，请帮助我提高mu的声誉。在这种情况下，signature.view将提供ImageView，并且在FrontCards阵列中包含UIImage。所以它不会给你索引。只想让你知道：）@Ushan87谢谢！更新了我的代码，也许现在可以用了。我使用了AccessibilityIdentifier:）

-(void)doubleTapImgView:(UITapGestureRecognizer *)gesture{
    UIImageView *imgView = (UIImageView *)gesture.view;
     int idx = [FrontCards indexOfObject:[imgView accessibilityIdentifier]];
}