从UIScrollView移除子视图

Question

I need to remove image subviews from a ScrollView and I tried removing from the array of subviews but that is an NSArray which is immutable.

How can a subview be removed from the scrollviews array of subviews ?

Answer 1

    NSArray *viewsToRemove = [scrollView subviews];
    for (UIView *v in viewsToRemove) [v removeFromSuperview];

Answer 2

你可以这样做，

[[scrollView subviews] makeObjectsPerformSelector:@selector(removeFromSuperview)];

Answer 3

This will remove all subviews of a UIScrollView but its scroll indicators: _scrollView.showsHorizontalScrollIndicator = _scrollView.showsVerticalScrollIndicator = NO; [_scrollView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)]; _scrollView.showsHorizontalScrollIndicator = _scrollView.showsVerticalScrollIndicator = YES;

Answer 4

for (UIView *v in [scrollView subviews]) {
    [v removeFromSuperview];       
}

Answer 5

Swift

for subview in scrollView.subviews {
    subview.removeFromSuperview()
}

Answer 6

在子视图上调用-removeFromSuperview。