Question

是Objective C和iPhone开发的新手。请告诉我如何在操作表中添加操作表。就像当我点击一个按钮打开一个操作表，然后我点击了第一个ButtonIndex动作时，会出现另一个操作表。请提及完整的代码。感谢

Answer 1

使用UIActionSheet委托方法：

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {

    if (buttonIndex == 0) { // Add an action sheet for one of these buttons -> maybe here if you want...

     NSLog(@"You clicked the first button...");

     UIActionSheet *popupQuery = [[UIActionSheet alloc] initWithTitle:@"Another action sheet"
     delegate:self cancelButtonTitle:@"Cancel Button" destructiveButtonTitle:@"Destructive" 
     otherButtonTitles:@"Other Button 1", nil];

    popupQuery.actionSheetStyle = UIActionSheetStyleBlackOpaque;

    [popupQuery showInView:self.view];

    [popupQuery release];

    } 

    else {

        NSLog(@"Dismissing action sheet");

    }

}

Answer 2

您要做的就是关闭第一个UIActionSheet并在其中显示另一个UIActionSheet。换句话说，您不想在另一个UIActionSheet中显示UIActionSheet - 您希望在其他UIActionSheet被解除后显示UIActionSheet。

要了解行动表何时被解雇，您应该实施UIActionSheetDelegate协议。例如：

- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex { // first action sheet is dismissed // show a new action sheet here }

ActionSheet中的操作表

2 个答案: