AlertView-iOS8中沒有顯示多行語句

Question

我想在UIAlertview上顯示一些左側和中間對齊的多語句，但是這段代碼對於ios 7工作甚至可以用於ios 8，但是最後一個標籤沒有顯示。

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view, typically from a nib. 
    NSString *equipmentString =@"100114 Mica Unit 5 and 6"; 
    NSString *projectString =@"01-130156 FORD-FIVEHUNDREDSEL"; 
    NSString *employeeString =@"00167293 Blake Linfield"; 
    NSString *lastInspectedDate=@"28-Aug-2014"; 
    NSString *lastInspectionDay=@"Thursday"; 
    NSString *title=@"Proceed to inspection?"; 



    UIView *alertContainerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 271, 150)]; 

    UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectMake(10, 5, CGRectGetWidth(alertContainerView.frame) - 20, 20)]; 
    label1.textAlignment = NSTextAlignmentCenter; 
    label1.font = [UIFont boldSystemFontOfSize:14.0f]; 
    label1.text = title; 
    [alertContainerView addSubview:label1]; 

    UILabel *label2 = [[UILabel alloc] initWithFrame:CGRectMake(10, CGRectGetMaxY(label1.frame) + 2, CGRectGetWidth(alertContainerView.frame) - 20, 20)]; 
    label2.textAlignment = NSTextAlignmentLeft; 
    label2.font = [UIFont systemFontOfSize:14.0f]; 
    label2.text = equipmentString; 
    label2.lineBreakMode = NSLineBreakByTruncatingTail; 
    label2.numberOfLines = 1; 
    [alertContainerView addSubview:label2]; 

    UILabel *label3 = [[UILabel alloc] initWithFrame:CGRectMake(10, CGRectGetMaxY(label2.frame) + 2, CGRectGetWidth(alertContainerView.frame) - 20, 20)]; 
    label3.textAlignment = NSTextAlignmentLeft; 
    label3.font = [UIFont systemFontOfSize:14.0f]; 
    label3.text = projectString; 
    label3.lineBreakMode = NSLineBreakByTruncatingTail; 
    label3.numberOfLines = 1; 
    [alertContainerView addSubview:label3]; 

    UILabel *label4 = [[UILabel alloc] initWithFrame:CGRectMake(10, CGRectGetMaxY(label3.frame) + 2, CGRectGetWidth(alertContainerView.frame) - 20, 20)]; 
    label4.textAlignment = NSTextAlignmentLeft; 
    label4.font = [UIFont systemFontOfSize:14.0f]; 
    label4.text = employeeString; 
    label4.lineBreakMode = NSLineBreakByTruncatingTail; 
    label4.numberOfLines = 1; 
    [alertContainerView addSubview:label4]; 

    UILabel *label5=[[UILabel alloc]initWithFrame:CGRectMake(10, CGRectGetMaxY(label4.frame)+2, CGRectGetWidth(alertContainerView.frame)-20, 20)]; 
    UIFont* boldFont = [UIFont boldSystemFontOfSize:[UIFont systemFontSize]]; 
    label5.textAlignment = NSTextAlignmentCenter; 
    label5.font = [UIFont systemFontOfSize:14.0f]; 
    label5.text = lastInspectedDate; 
    [label5 setFont:boldFont]; 
    label5.lineBreakMode = NSLineBreakByTruncatingTail; 
    label5.numberOfLines = 1; 
    [alertContainerView addSubview:label5]; 

    UILabel *label6=[[UILabel alloc]initWithFrame:CGRectMake(10, CGRectGetMaxY(label5.frame)+2, CGRectGetWidth(alertContainerView.frame)-20, 20)]; 
    UIFont* boldFont1 = [UIFont boldSystemFontOfSize:[UIFont systemFontSize]]; 
    label6.textAlignment = NSTextAlignmentCenter; 
    label6.font = [UIFont systemFontOfSize:14.0f]; 
    label6.text = lastInspectionDay; 
    [label6 setFont:boldFont1]; 
    label6.lineBreakMode = NSLineBreakByTruncatingTail; 
    label6.numberOfLines = 1; 
    [alertContainerView addSubview:label6]; 

    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:nil delegate:nil cancelButtonTitle:@"NO" otherButtonTitles:@"YES", nil]; 
    [alertView setValue:alertContainerView forKey:@"accessoryView"]; 

    [alertView show]; 
} 

最後一個標籤沒有顯示在ios 8中，但是相同的代碼與ios 7一起工作，請有人幫我解決問題。

Answer 1

你可以試試這個代碼

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Alrt" message:@"This is the Message" preferredStyle:UIAlertControllerStyleAlert]; 
     UIAlertAction *cancelAction = [UIAlertAction 
             actionWithTitle:NSLocalizedString(@"Cancel", @"Cancel action") 
             style:UIAlertActionStyleCancel 
             handler:^(UIAlertAction *action) 
             { 
              NSLog(@"Cancel action"); 
             }]; 

     UIAlertAction *okAction = [UIAlertAction 
            actionWithTitle:NSLocalizedString(@"OK", @"OK action") 
            style:UIAlertActionStyleDefault 
            handler:^(UIAlertAction *action) 
            { 
             NSLog(@"OK action"); 
            }]; 

     [alertController addAction:cancelAction]; 
     [alertController addAction:okAction]; 

     [self presentViewController:alertController animated:YES completion:nil];