UIAlertView backgroundImage

Question

如何以编程方式在UIAlertView中设置背景图像？

Answer 1

没有方法为AlertView设置背景图像。我们需要将图像设置为警报视图的子视图。

尝试这种方式它会起作用：

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title" message:@"Message 1......\nMessage 2......" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];

UIImageView *Image =[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ImageName"]];
[alert addSubview:Image];

[Image release];

[alert show];
[alert release];

Answer 2

 UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"title" message:@"Empty data not Allowed" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];



   UIImage *alertImage = [UIImage imageNamed:@"custom-dialog-background.png"];

   UIImageView *backgroundImageView = [[UIImageView alloc] initWithImage:alertImage];

   backgroundImageView.frame = CGRectMake(0, 0, 282, 130);

   backgroundImageView.contentMode = UIViewContentModeScaleToFill;

   [alert addSubview:backgroundImageView];

   [alert sendSubviewToBack:backgroundImageView];


   [alert show];