UIActionSheet使多个UIButton变化

问题描述：

我有6个UIbuttons在视图上。我正在尝试为每个按钮调用UIActionSheet，并更改按钮图像和UIlabel。我可以得到第一个按需要工作。我似乎无法得到第二个像第一个那样进行更改。这是我的代码。请帮忙。UIActionSheet使多个UIButton变化

-(IBAction)lifeStatus:(id)sender { 

    UIActionSheet *lifeStatus = [[UIActionSheet alloc] initWithTitle:@"Please Select" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"UNSECURED" otherButtonTitles:@"SECURED", @"PENDING", nil]; 


    lifeStatus.actionSheetStyle = UIActionSheetStyleBlackOpaque; 
    [lifeStatus showInView:self.view.window]; 
    [lifeStatus release]; 

} 
-(void)actionSheet:(UIActionSheet *)lifeStatus clickedButtonAtIndex:(NSInteger) buttonIndex { 
    if (buttonIndex == 0) { 
     self.lifeLabel.text = @"UNSECURED"; 
     [self.lifeButton setImage:[UIImage imageNamed:@"RedButton.png"] forState:UIButtonTypeCustom]; 
     self.lifeLabel.textColor = [UIColor whiteColor]; 
    } else if (buttonIndex == 1) { 
     self.lifeLabel.text = @"SECURED"; 
     [self.lifeButton setImage:[UIImage imageNamed:@"GreenButton.png"] forState:UIButtonTypeCustom]; 
     self.lifeLabel.textColor = [UIColor whiteColor]; 
    } else if (buttonIndex == 2) { 
     self.lifeLabel.text = @"PENDING"; 
     [self.lifeButton setImage:[UIImage imageNamed:@"YellowButton.png"] forState:UIButtonTypeCustom]; 
     self.lifeLabel.textColor = [UIColor blackColor]; 
    } 
} 

-(IBAction)sceneStatus:(id)sender { 

    UIActionSheet *sceneStatus = [[UIActionSheet alloc] initWithTitle:@"Please Select" delegate:nil cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"UNSECURED" otherButtonTitles:@"SECURED", @"PENDING", nil]; 

    sceneStatus.actionSheetStyle = UIActionSheetStyleBlackOpaque; 
    [sceneStatus showInView:self.view.window]; 
    [sceneStatus release]; 

} 

-(void)actionSheet1:(UIActionSheet *)sceneStatus clickedButtonAtIndex:(NSInteger)buttonIndex { 
    if (buttonIndex == 0) { 
     self.sceneLabel.text = @"UNSECURED"; 
     [self.sceneButton setImage:[UIImage imageNamed:@"RedButton.png"] forState:UIButtonTypeCustom]; 
     self.sceneLabel.textColor = [UIColor whiteColor]; 
    } else if (buttonIndex == 1) { 
     self.sceneLabel.text = @"SECURED"; 
     [self.sceneButton setImage:[UIImage imageNamed:@"GreenButton.png"] forState:UIButtonTypeCustom]; 
     self.sceneLabel.textColor = [UIColor whiteColor]; 
    } else if (buttonIndex == 2) { 
     self.sceneLabel.text = @"PENDING"; 
     [self.sceneButton setImage:[UIImage imageNamed:@"YellowButton.png"] forState:UIButtonTypeCustom]; 
     self.sceneLabel.textColor = [UIColor blackColor]; 
    } 
}

答

鉴于格式化，您的代码有点难以阅读，但如果我理解正确，您可以尝试以下操作。

首先，创建selectedButton属性或字段。新增目标为每个按钮：

[button1 addTarget:self action:@selector(buttonTouched:) forControlEvents:UIControlEventTouchDownOutside]; 
[button2 addTarget:self action:@selector(buttonTouched:) forControlEvents:UIControlEventTouchDownOutside]; 
... other buttons ... 

-(void)buttonTouched:(id)sender { 
    self.selectedButton = (UIButton *)sender; 

    //Show UIActionSheet here 
    ... 
}

然后你UIActionSheet clickedButtonAtIndex内：法，selectedButton将指向正确的按钮，所以它应该是相当简单的根据需要进行修改。

我在哪里添加属性或字段。在我的.m或.h下，我是否将这个添加到.m下的按钮的IBAction中，并将这个void添加到每个按钮语句中？对不起，提出了一些问题。谢谢你的时间。 – 2011-03-28 04:09:00

您可以像创建其他字段一样创建字段（即在.h的界面中）。所有你需要做的是'selectedButton =（UIButton *）sender;'如果按钮的动作。您将直接显示UIActionSheet，并且单击按钮存储在selectedButton中。 – NRaf 2011-03-28 04:20:25

如果您在Interface Builder中设置按钮，那么您应该在IBAction中设置按钮。您不需要添加无效，您可以将其保留为IBAction。 – NRaf 2011-03-28 04:22:14

答

使用默认按钮创建UIActionSheet。在每个按钮点击上设置您需要在actionSheet中显示的按钮标题。

for (int i = 0; i < itemCount; i++) { 
    [actionSheet addButtonWithTitle:itemText]; 
} 
actionSheet.cancelButtonIndex = [actionSheet addButtonWithTitle:@"Cancel"];

UIActionSheet使多个UIButton变化

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