如何在點擊該警報視圖中的按鈕時關閉alertview

我是iOS新手。如何在點擊該警報視圖中的按鈕時關閉alertview

我正在使用alertviews。這是我的代碼。這裏有2個警報視圖：登錄頁面的successfulallert和unsuccessfulallert。我也在這裏使用了alertview委託，它將適用於兩個alertviews，但我只想爲成功的alertview工作，導航應該只爲成功的alertview完成。如果有人知道這一點，請幫助我。

NSString *responseOfResult = [[NSString alloc]initWithString:[result response]]; 
    NSRange match; 
    // NSLog(@"string= %@", str); 
    match = [responseOfResult rangeOfString: @"successful"]; 
    if(match.location == NSNotFound) 
    { 
     UIAlertView *unsuccessfulAllert = [[UIAlertView alloc] 
           initWithTitle:@"Alert" 
           message:responseOfResult 
           delegate:self 
           cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 
     [unsuccessfulAllert show]; 

    } 
    else { 
     UIAlertView *successfulAllert = [[UIAlertView alloc] 
           initWithTitle:@"Message" message:@"Login successful." delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 
     [successfulAllert show]; 
    } 
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ 
    if(buttonIndex == 0){ 
     [[self navigationController]pushViewController:registerUserScreen animated:YES]; 
    } 
}

來源

2012-05-11 user1268135

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ 
    if(buttonIndex == 0){ 
     //POP here with this: 
     [self.navigationController pushViewController:addItemView animated:NO]; 

    } 
}

來源

2012-05-11 08:25:08

添加標籤兩個警報意見，併爲您在警報視圖委託標籤。

示例代碼：

NSString *responseOfResult = [[NSString alloc]initWithString:[result response]]; 
NSRange match; 
// NSLog(@"string= %@", str); 
match = [responseOfResult rangeOfString: @"successful"]; 
if(match.location == NSNotFound) 
{ 
    UIAlertView *unsuccessfulAllert = [[UIAlertView alloc] 
          initWithTitle:@"Alert" 
          message:responseOfResult 
          delegate:self 
          cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 
    [unsuccessfulAllert setTag:1]; 
    [unsuccessfulAllert show]; 

} 
else { 
    UIAlertView *successfulAllert = [[UIAlertView alloc] 
          initWithTitle:@"Message" message:@"Login successful." delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 
    [successfulAllert setTag:2]; 
    [successfulAllert show]; 
} 

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ 
if(alertView.tag==2 && buttonIndex == 0){ 
    [[self navigationController]pushViewController:registerUserScreen animated:YES]; 
}

來源

2012-05-11 08:25:27

你在第二個if語句中缺少'.tag'。 – Mat

你是對的墊子。我現在糾正了錯誤。 –

是委託將工作既alertviews，但你可以將代碼分配給每個alertview對象併爲您在這個代表的標籤，然後，如果執行事件，標籤特別AlertView onject matches.If你需要代碼，我會提供。

來源

2012-05-11 08:29:06

NSString *responseOfResult = [[NSString alloc]initWithString:[result response]]; 
NSRange match; 
// NSLog(@"string= %@", str); 
match = [responseOfResult rangeOfString: @"successful"]; 
if(match.location == NSNotFound) 
{ 
    UIAlertView *unsuccessfulAllert = [[UIAlertView alloc] 
          initWithTitle:@"Alert" 
          message:responseOfResult 
          delegate:self 
          cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 

    [unsuccessfulAllert setTag:1]; 

    [unsuccessfulAllert show]; 

} 
else { 
    UIAlertView *successfulAllert = [[UIAlertView alloc] 
          initWithTitle:@"Message" message:@"Login successful." delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 

    [successfulAllert setTag:2]; 
    [successfulAllert show]; 
} 
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ 
if(alertView.tag == 2) 
{ 
    [[self navigationController]pushViewController:registerUserScreen animated:YES]; 
} 
else 
{ 
    //[[self navigationController]pushViewController:registerUserScreen animated:NO]; 
    // OR 
    return; 
} 
}

來源

2012-05-11 08:51:16

你有很多方法來糾正你的代碼，第一，很常見的是使用UIView的tag屬性（整數）。由於從UIViewUIAlertview繼承，它具有tag屬性，所以你要創建一個警報（或視圖）每次，設置標籤和檢查你的條件，如：

... 
alert.tag=1; 
[alert show];

後來才知道至極警報調用回調：

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ 
    if(alertView.tag==theTagOfYourAlert){ 
    //do your stuff 
    } 
}

另一種方式，你的情況，可能是：

if([alertView.title isEqualToString:@"Alert"]){ 
     //do your stuff 
    } 
}

來源

2012-05-11 08:55:06 Mat

你爲什麼不把「確定」作爲cancelButtonTitle？一切都會自動處理。

UIAlertView *successfulAllert = [[UIAlertView alloc] 
           initWithTitle:@"Message" message:@"Login successful." delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil]; 
     [successfulAllert show];

來源

2012-05-11 09:19:03 Sangeeta

對於登錄狀態更新等內容，您可能希望「登錄成功」消息自動消失。試試這個：

https://github.com/camclendenin/flashbox

這很好地工作，並就派上用場了這樣的情況。另外，您不必處理與UIAlertView相關的所有混亂情況。

來源

2012-05-22 16:39:17 Codemonk

如何在點擊該警報視圖中的按鈕時關閉alertview

回答

相關問題