在objective-C中，创建一个类别方法脱离UIView类。

- (void)removeAllSubviews
{
    for (UIView *subview in self.subviews)
        [subview removeFromSuperview];
}

如果你想移除UIView(这里是yourView)上的所有子视图，那么在你的按钮点击处写以下代码:

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

view.subviews.forEach { $0.removeFromSuperview() }

从你的根控制器获取所有的子视图，并给每个子视图发送一个removeFromSuperview:

NSArray *viewsToRemove = [self.view subviews];
for (UIView *v in viewsToRemove) {
    [v removeFromSuperview];
}

为了从父视图中移除所有子视图:

NSArray *oSubView = [self subviews];
for(int iCount = 0; iCount < [oSubView count]; iCount++)
{
    id object = [oSubView objectAtIndex:iCount];
    [object removeFromSuperview];
    iCount--;
}

使用以下代码删除所有子视图。

for (UIView *view in [self.view subviews]) 
{
 [view removeFromSuperview];
}