ipad - 具有许多按钮的Xcode iPad UIActionSheet无法正确显示iOS7

在iPad上，新的ios 7 UIActionSheet无法通过许多按钮正确显示。

滚动时不清除UIActionSheet的背景。这些按钮似乎在后台UIActionSheet中冻结。

screenshot with problem

我的代码：

UIActionSheet *popupQuery = [[UIActionSheet alloc];
for (int i=0; i<[ParamAllList count]; i++)
{
    NSMutableDictionary *Param = [ParamAllList objectAtIndex:i];
    [popupQuery addButtonWithTitle:[Param valueForKey:@"name"]];
    [[[popupQuery valueForKey:@"_buttons"] objectAtIndex:[[popupQuery valueForKey:@"_buttons"] count]-1] setImage:[UIImage imageNamed:@"add40icon.png"] forState:UIControlStateNormal];
}
popupQuery.actionSheetStyle = UIActionSheetStyleAutomatic;
[popupQuery showFromRect:Button_Settings.frame inView:Button_Settings.superview animated:YES];

最佳答案

这是actionSheet代表的解决方法：

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet {
    actionSheet.backgroundColor = [UIColor whiteColor];
    for (UIView *subview in actionSheet.subviews) {
        subview.backgroundColor = [UIColor whiteColor];
    }
}

基于此答案：
Change Text color in UIActionSheet Buttons

关于ipad - 具有许多按钮的Xcode iPad UIActionSheet无法正确显示iOS7，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/19025852/