ios - 如何在 objective-c 中给 imageView 标签

Question

我正在为 children 开发一个应用程序。

 images=[[NSMutableArray alloc]initWithObjects:[UIImage imageNamed:@"Navarre-Family-Eye-Care-Navarre-Florida-Optometrist-Santa-Christmas-Toy-Safety.jpg"],[UIImage imageNamed:@"Christmas-Wallpapers-HD-Picture.jpg"],[UIImage imageNamed:@"Christmas-Wallpaper-jesus-9413550-1024-768.jpg"],[UIImage imageNamed:@"tree.jpg"],[UIImage imageNamed:@"luxury-christmas-napkins-father-christmas-1635-p.jpg"],[UIImage imageNamed:@"Navarre-Family-Eye-Care-Navarre-Florida-Optometrist-Santa-Christmas-Toy-Safety.jpg"],[UIImage imageNamed:@"Christmas-Wallpapers-HD-Picture.jpg"],[UIImage imageNamed:@"Christmas-Wallpaper-jesus-9413550-1024-768.jpg"],[UIImage imageNamed:@"tree.jpg"],[UIImage imageNamed:@"luxury-christmas-napkins-father-christmas-1635-p.jpg"], nil];

    NSString *dd=[NSString stringWithFormat:@"%@", images];
    NSLog(@"%@",dd);



    randomIndex1=arc4random() % images.count;
    selectedImage = [images objectAtIndex:randomIndex1]; //random selected image

    NSLog(@"%@",selectedImage);

    number = [[NSMutableArray alloc]initWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10", nil];


    randomNumber = arc4random() % number.count; //random selected number
    NSLog(@"%d",randomNumber);

    for (int i = 0; i <randomNumber; i++)
    {
        NSLog(@"%@", selectedImage);

        // _img.image = selectedImage;

        //cell.img.image=selectedImage;

    }

我已经使用了 UIView。在 UIView 中，我放置了 15 个 ImageView。当我从输出中获得 selectedImage 时。我需要根据标签将图像放置在 ImageView 中。如何操作

Answer 1

您需要为 View 中的所有 15 张图像设置标签，例如 1,2,3,4,5...15

然后检查一下

for (int i = 0 ; i < randomNumber ; i++){
    id subView = [view viewWithTag:i];

    if ([subView isKindOfClass:[UIImageView class]]){
        ((UIImageView *)subView).image = selectedImage;
    }

    if ([subView isKindOfClass:[UIButton class]]){
       [((UIButton *)subView) setImage:selectedImage forState:UIControlStateNormal];
    }
}

说 randomNumber = 5 ，然后您可以为前 5 个 ImageView 设置图像。