IOS:具有两种不同委托方法的两个 UIAlert [英] IOS: two UIAlert with two different delegate methods

问题描述

我有一个 UIAlert

I have an UIAlert

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"ok" 
                                                        message:@"Canc?"
                                                       delegate:self 
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles:@"Annul", nil];
[alertView show];
[alertView release];

及其委托方法:

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {

if(buttonIndex == 0)//OK button pressed
{
    //do something
}
else if(buttonIndex == 1)//Annul button pressed.
{
    //do something
}

一切都好，但如果我有另一个alertview示例alertViewOne"，我希望这个alertViewOne有它的委托方法，它不应该使用第一个alertview的委托方法；如何更改我的代码?

and it's all ok but if I have another alertview example "alertViewOne", I want that this alertViewOne have its delegate method and it shouldn't use delegate method of first alertview; how does change my code?

推荐答案

只需为每个 Alert 视图设置一个标签，然后检查哪个发送了消息.

Simply set a tag to each Alert view and check which one sent the messeg.

alertView.tag=0;

然后

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex              {
  if(alertView.tag==0){

     if(buttonIndex == 0)//OK button pressed
    {
    //do something
    }
    else if(buttonIndex == 1)//Annul button pressed.
    {
    //do something
    }
}else{
    if(buttonIndex == 0)//OK button pressed
    {
    //do something
    }
      else if(buttonIndex == 1)//Annul button pressed.
    {
    //do something
    }
  }

更新使用块有更好的解决方案.

Update There is a better solution using blocks.

你可以看看这个项目，例如:UIAlertView-Blocks

You can look at this project for example: UIAlertView-Blocks

据我所知，iOS8 将带有带有块的本机警报.

And as far as I know iOS8 will come with native alerts with blocks.

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