警报视图在 iOS7 中显示白色矩形 [英] Alert view is showing white rectangle in iOS7
问题描述
The following code works perfectly from iOS 5 to 6.1. I even have applications in store with that code:
-(void)showActivityIndicator
{
if(!mLoadingView) //
{
mLoadingView = [[UIAlertView alloc] initWithTitle:@"" message:@"" delegate:self cancelButtonTitle:nil otherButtonTitles:nil];
mLoadingView.tag = kAlertViewTag;
}
[mLoadingView show];
}
- (void)willPresentAlertView:(UIAlertView *)alertView
{
if (alertView.tag == kAlertViewTag)
{
UIActivityIndicatorView *actInd = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
actInd.frame = CGRectMake(128.0f, 45.0f, 25.0f, 25.0f);
[alertView addSubview:actInd];
[actInd startAnimating];
UILabel *l = [[UILabel alloc]init];
l.text = NSLocalizedString(@"PRODUCT_PURCHASE_INDICATOR_TITLE", @"Please wait...");
l.font = [UIFont fontWithName:@"Helvetica" size:16];
float strWidth = [l.text sizeWithFont:l.font].width;
float frameWidth = alertView.frame.size.width;
l.frame = CGRectMake((frameWidth - strWidth)/2, -25, 210, 100);
l.textColor = [UIColor whiteColor];
l.shadowColor = [UIColor blackColor];
l.shadowOffset = CGSizeMake(1.0, 1.0);
l.backgroundColor = [UIColor clearColor];
[alertView addSubview:l];
}
}
It will show alert view without buttons and with activity indicator and label. However in iOS7 I can see only white rounded rectangle, no activity indicator.
What can I do to have this work from iOS 5 to 7?
Update:
To be more descriptive I'm adding screenshots. The following is iOS 5 to 6.1 screenshot. Works fine there.
The following is iOS7. As you can see even the size is smaller. Looks like it's not fully initialized or something.
now addSubview
is not available in UIAlertView
in iOS7
The UIAlertView
class is intended to be used as-is and does not support subclassing. The view hierarchy for this class is private and must not be modified
As an alternative you can use SVProgressHUD
.
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