在运行时在UIAlertview iOS中添加确定按钮 [英] adding ok button at run time in UIAlertview ios

问题描述

我在调用Web服务时使用进度指示器视图调用警报.我正在这样设置警报视图:

I call alert with progress indicator view while calling web services.i am having an alert view set up like this:

    [self.activityIndicatorView setHidden:NO];
self.alertView = [[UIAlertView alloc] initWithTitle:@"Sending Login Request.."
                                       message:@"\n"
                                      delegate:self
                             cancelButtonTitle:nil
                             otherButtonTitles:nil];

self.activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
self.activityIndicatorView.center = CGPointMake(139.5, 75.5); // .5 so it doesn't blur
[self.alertView addSubview:self.activityIndicatorView];
[self.activityIndicatorView startAnimating];
[self.alertView show];

稍后如果登录失败，我想在警报视图上放置确定"按钮，不关闭self.alertView，然后再次显示self.alertView的新实例.

Later if login fails I want to put "OK" button on alert view, withot dismissing self.alertView, and again showing new instance of self.alertView.Some thing like this:

if (isThereErrorFromJsonResp) {
    [self.activityIndicatorView stopAnimating];
    [self.activityIndicatorView removeFromSuperview];
    self.activityIndicatorView = nil;
    [self.alertView setTitle:isThereErrorFromJsonResp];
    //here i want to show ok button how?
    return;
}

那我应该怎么按OK按钮?有什么建议吗?

So how should i put OK button? Any Suggestion?

推荐答案

删除获取响应的警报并显示新的警报实例

Remove the alert on getting the response and display an new instance of alert like this

[self.alertView dismissWithClickedButtonIndex:0 animated:YES];
self.alertView = [[UIAlertView alloc] initWithTitle:isThereErrorFromJsonResp
                                       message:@"\n"
                                      delegate:self
                             cancelButtonTitle:@"OK"
                             otherButtonTitles:nil];
[self.alertview show];

解决方案

好吧，试了试

使用

    [alertView dismissWithClickedButtonIndex:0 animated:YES];
    [alertView addButtonWithTitle:@"Ok"];
    [alertView show];

这会将按钮添加到Alertview

This will add the button to the alertview

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