在我的应用程序中,我实现了非常复杂的控制,该控制基于ARScrollViewEnhancer
。我需要它来显示 UIScrollView 的多个页面。这是我的 UIScrollView
代码:
dateScroll = [[UIScrollView alloc] initWithFrame:CGRectMake(28, 0, dateLabelMaxSize, 45)];
dateScroll.pagingEnabled = YES;
dateScroll.clipsToBounds = NO;
dateScroll.showsHorizontalScrollIndicator = NO;
dateScroll.backgroundColor = [UIColor clearColor];
dateScroll.contentSize = CGSizeMake(dateLabelMaxSize*[dayArray count], 45);
我使用dateScroll.clipsToBounds = NO;
来显示框架外的页面。这是 ARScrollViewEnhancer
的代码:
ARScrollViewEnhancer *backForDate = [[ARScrollViewEnhancer alloc] initWithFrame:CGRectMake(0, 80, self.view.frame.size.width, 45)];
[backForDate addSubview:dateScroll];
backForDate._scrollView = dateScroll;
[self.view addSubview:backForDate];
然后我为 UIScrollView
添加了 subview 。这是 UILabels
和 UIButtons
。
for (int i=0;i<[dayArray count];i++){
UILabel *dateLabel = [[UILabel alloc] initWithFrame:CGRectMake(3+dateLabelMaxSize*i, 5, dateLabelMaxSize, 40)];
dateLabel.backgroundColor = [UIColor clearColor];
dateLabel.textAlignment = UITextAlignmentLeft;
dateLabel.text = @"some text...";
[dateScroll addSubview:dateLabel];
UIButton *dateButton = [UIButton buttonWithType:UIButtonTypeCustom];
//dateButton.backgroundColor = [UIColor redColor];
dateButton.frame = CGRectMake(3+dateLabelMaxSize*i, 5, dateLabelMaxSize-10, 40);
dateButton.tag = i;
[dateButton addTarget:self action:@selector(dateTapped:) forControlEvents:UIControlEventTouchUpInside];
[dateScroll addSubview:dateButton];
}
按钮的方法:
-(void)dateTapped:(UIButton*)button{
NSLog(@"%i",button.tag);
}
所以,按钮不起作用((为什么? 谢谢。
UPD。
hitTest 方法代码。是:
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
if ([self pointInside:point withEvent:event]) {
return _scrollView;
}
return nil;
}
现在:
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
UIView *scrv = _scrollView;
UIView *superView = [super hitTest:point withEvent:event];
if (superView == self)
{
CGPoint scrollViewpoint = [_scrollView convertPoint:point fromView:self];
for(UIView *view in _scrollView.subviews) {
if(CGRectContainsPoint(view.frame, scrollViewpoint)) {
return view;
}
}
return scrv;
}
return superView;
}
最佳答案
如果您还在自定义控件中复制 hitTest 方法,则它是导致问题的原因,因为它始终返回 ScrollView 而不是按钮。
您需要返回正确的 subview ,而不是总是返回 subview ,如下所示:
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
UIView *scrv = self.scrollView;
UIView *superView = [super hitTest:point withEvent:event];
if (superView == self)
{
CGPoint scrollViewpoint = [self.scrollView convertPoint:point fromView:self];
for(UIView *view in self.scrollView.subviews) {
if(CGRectContainsPoint(view.frame, scrollViewpoint)) {
return view;
}
}
return scrv;
}
return superView;
}
关于ios - UIButton 作为复杂 UIScrollView 上的 subview ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16881345/