使用Swift UIView扩展:

extension UIView {
    func removeAllSubviews() {
        for subview in subviews {
            subview.removeFromSuperview()
        }
    }
}

如果你正在使用Swift，它就像:

subviews.map { $0.removeFromSuperview }

它在理念上与makeObjectsPerformSelector方法相似，但是具有更多的类型安全性。

使用Swift UIView扩展:

extension UIView {
    func removeAllSubviews() {
        for subview in subviews {
            subview.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--;
}

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];
}