iphone 确认框与提示框

wilent

   首先Controller需要遵守UIActionSheetDelegate协议，如：
 
@interface SampleController : UIViewController<UIActionSheetDelegate>    Controller实现中可以这样触发确认框：
 
   UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Are you sure?"        delegate:selfcancelButtonTitle:@"No way!"destructiveButtonTitle:@"Yes,I'm Sure!"otherButtonTitles:nil        ];   [actionSheet showInView:self.view];   [actionSheet release];    Controller确认框事件：
 
-(void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex{if(buttonIndex !=[actionSheet cancelButtonIndex]){NSString *msg = nil;if(nameField.text.length>0){msg = [[NSString alloc] initWithFormat:@"You can breathe easy ,%@,everything went OK>",nameField.text];}else{msg = @"You can breathe easy,everything went OK.";}UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"something was" message:msg delegate:self cancelButtonTitle:@"phew!" otherButtonTitles:nil];[alert show];[alert release];[msg release];}}