获取子视图枚举的框架

Question

因此，我有包含缩略图的重复视图，一旦按下缩略图，缩略图 ID 就会作为标签发送。

根据这些信息，我想获取该视图的子视图的框架；

- (IBAction)thumbPressed:(id)sender {
    NSLog(@"Thumb %i pressed", (int)[sender tag]);

    for (int i = 0; i < _thumbCounter; i++) {
        if (i == [sender tag]) {
            NSLog(@"thumb view %i", i);

            //Up To HERE

            break;
        }
    }

//    [self moveToVideoControllerWithInfoID:[NSString stringWithFormat:@"%li", (long)[sender tag]]];
}

对于要绘制的缩略图，它们是按 JSON 检索到的随机顺序绘制的。

按钮

UIButton *thumbButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[thumbButton addTarget:self
           action:@selector(thumbPressed:)
 forControlEvents:UIControlEventTouchUpInside];
thumbButton.frame = CGRectMake(0, 0, _thumbView.frame.size.width, _thumbView.frame.size.height);
thumbButton.tag = _thumbCounter;
[_thumbView addSubview:thumbButton];

我要获取框架的子视图

NSString *string = [NSString stringWithFormat:@"***.jpg",Link];

NSURL * imageURL = [NSURL URLWithString:string];
NSData * imageData = [NSData dataWithContentsOfURL:imageURL];
UIImage * image = [UIImage imageWithData:imageData];

UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(thumbGap, thumbGap, thumbHeight - 5, thumbHeight - 5)];
imageView.image = image;

[_thumbView addSubview:imageView];

缩略图 shell 的绘制位置

_thumbView = [[ThumbView alloc] initWithFrame:CGRectMake(0, margin, _scrollView.frame.size.width, thumbHeight)];
_thumbView.backgroundColor = [UIColor whiteColor];
_thumbView.thumbId = _thumbCounter;
[_scrollView addSubview:_thumbView];

_thumbview 是 UIVIEW 的 class 添加了 thumbId

我如何在按下该按钮后找到 _thumbview 内的 imageView 框架（请记住有多个）。

Answer 1

首先，让我们让您的生活更轻松：

- (IBAction)thumbPressed:(UIButton*)sender {
    NSLog(@"Thumb %i pressed", (int)[sender tag]);
    ThumbView *thumbView = (ThumbView*)[sender superView];
    for(UIView* subview in thumbView.subViews) {
        if([subView iKindOfClass:[UIImageView class]]) {
            //you got it here
        }
    }
}

你可以通过让 ThumbView 也有一个 imageView 属性来简化整个事情。

我已经尝试确定这就是您正在做的事情：

_scrollView
->_thumbView[0]
--->thumbButton
--->imageView
->_thumbView[1]
--->thumbButton
--->imageView
...
->_thumbView[N]
--->thumbButton
--->imageView

假设您想要与按下的按钮位于同一 thumbView 中的图像视图。

最佳可能解决方案（恕我直言）：

@Interface ThumbView()
    @property (nonatomic,weak) UIImageView *imageView;
@end

并且：（确保先添加，然后设置 .imageView）

- (IBAction)thumbPressed:(UIButton*)sender {
    NSLog(@"Thumb %i pressed", (int)[sender tag]);
    UIImageView *imageView = ((ThumbView*)[sender superView]).imageView
}

Answer 2

for (UIView *i in _scrollView.subviews) {
    if ([i isKindOfClass:[ThumbView class]]) {
        ThumbView *tempThumb = (ThumbView *)i;
        if (tempThumb.thumbId == (int)[sender tag]) {
            for (UIView *y in tempThumb.subviews) {
                if ([y isKindOfClass:[UIImageView class]]) {
                    UIImageView *tempIMG = (UIImageView *)y;

                    [self playVideo:[loadedInput objectForKey:@"link"] frame:tempIMG.frame andView:tempThumb];
                }
            }
        }
    }
}

获取子视图枚举的框架

Getting frame of subview enumeration

ios

objective-c

uiview

frame

subview