如何在UIVideoEditorController中的工具栏上添加/修改按钮？

Question

我正在尝试向UIVideoEditorController的底部工具栏添加按钮。这个是可能的吗？我可以修改/添加按钮到这个工具栏吗？

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Answer 1

苹果文档明确提到

Important: The UIVideoEditorController class supports portrait mode only. This class is intended to be used as-is and does not support subclassing. The view hierarchy for this class is private; do not modify the view hierarchy. This class does not support modifications to its appearance by use of overlay views.

所以基本上是不可能的。

Answer 2

在这里，我留下了一个可能的解决方案，但永远记住来自苹果的警告。在本例中，我正在更改工具栏的背景色，但它应该与您想要的任何修改一起工作。

 - (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated{

    [self changeBakcgroundColorOfView:navigationController.topView withColor:[UIColor redColor]];
}

- (void) changeBakcgroundColorOfView:(UIView *)view withColor:(UIColor*)color{

    for (UIView *subview in view.subviews) {

        if ([NSStringFromClass([subview class]) isEqualToString:@"UIToolbar"]) {

            UIToolbar *toolbar = (UIToolbar *)subview;
            toolbar.backgroundColor = color;
            toolbar.barTintColor = color;
        }

        [self changeBakcgroundColorOfView:subview withColor:color];
    }
}