残酷の青春

 [[UIAlertView alloc] initWithTitle:@"Title" message:message delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"One", @"Two", @"Three", nil];

- (void) action: (UIBarButtonItem *) item
{
    baseAlert = [[[UIAlertView alloc] initWithTitle:@"Please Wait" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles: nil] autorelease];
    [baseAlert show];

    // Create and add the activity indicator
    UIActivityIndicatorView *aiv = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
    aiv.center = CGPointMake(baseAlert.bounds.size.width / 2.0f, baseAlert.bounds.size.height - 40.0f);
    [aiv startAnimating];
    [baseAlert addSubview:aiv];
    [aiv release];

    // Auto dismiss after 3 seconds
    [self performSelector:@selector(performDismiss) withObject:nil afterDelay:3.0f];
}

- (void) performDismiss
{
    [baseAlert dismissWithClickedButtonIndex:0 animated:NO];
}

CFRunLoopRef currentLoop = CFRunLoopGetCurrent();
   
    // Create Alert
    ModalAlertDelegate *madelegate = [[ModalAlertDelegate alloc] initWithRunLoop:currentLoop];
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:question message:nil delegate:madelegate cancelButtonTitle:button1 otherButtonTitles:button2, nil];
    [alertView show];
   
    // Wait for response
    CFRunLoopRun();
   
    // Retrieve answer
    NSUInteger answer = madelegate.index;
    [alertView release];
    [madelegate release];

+(NSString *) textQueryWith: (NSString *)question prompt: (NSString *)prompt button1: (NSString *)button1 button2:(NSString *) button2
{
    // Create alert
    CFRunLoopRef currentLoop = CFRunLoopGetCurrent();
    ModalAlertDelegate *madelegate = [[ModalAlertDelegate alloc] initWithRunLoop:currentLoop];
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:question message:@"\n" delegate:madelegate cancelButtonTitle:button1 otherButtonTitles:button2, nil];

    // Build text field
    UITextField *tf = [[UITextField alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 260.0f, 30.0f)];
    tf.borderStyle = UITextBorderStyleRoundedRect;
    tf.tag = TEXT_FIELD_TAG;
    tf.placeholder = prompt;
    tf.clearButtonMode = UITextFieldViewModeWhileEditing;
    tf.keyboardType = UIKeyboardTypeAlphabet;
    tf.keyboardAppearance = UIKeyboardAppearanceAlert;
    tf.autocapitalizationType = UITextAutocapitalizationTypeWords;
    tf.autocorrectionType = UITextAutocorrectionTypeNo;
    tf.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;

    // Show alert and wait for it to finish displaying
    [alertView show];
    while (CGRectEqualToRect(alertView.bounds, CGRectZero));
   
    // Find the center for the text field and add it
    CGRect bounds = alertView.bounds;
    tf.center = CGPointMake(bounds.size.width / 2.0f, bounds.size.height / 2.0f - 10.0f);
    [alertView addSubview:tf];
    [tf release];
   
    // Set the field to first responder and move it into place
    [madelegate performSelector:@selector(moveAlert:) withObject:alertView afterDelay: 0.7f];
   
    // Start the run loop
    CFRunLoopRun();
   
    // Retrieve the user choices
    NSUInteger index = madelegate.index;
    NSString *answer = [[madelegate.text copy] autorelease];
    if (index == 0) answer = nil; // assumes cancel in position 0

    [alertView release];
    [madelegate release];
    return answer;
}

// Move alert into place to allow keyboard to appear
- (void) moveAlert: (UIAlertView *) alertView
{
    CGContextRef context = UIGraphicsGetCurrentContext();
    [UIView beginAnimations:nil context:context];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView setAnimationDuration:0.25f];
    if (![self isLandscape])
        alertView.center = CGPointMake(160.0f, 180.0f);
    else
        alertView.center = CGPointMake(240.0f, 90.0f);
    [UIView commitAnimations];
   
    [[alertView viewWithTag:TEXT_FIELD_TAG] becomeFirstResponder];
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    [actionSheet release];
    [self say:@"User Pressed Button %d\n", buttonIndex + 1];
}

-(void) action: (UIBarButtonItem *) item
{
    UIActionSheet *menu = [[UIActionSheet alloc]
                           initWithTitle: @"File Management"
                           delegate:self
                           cancelButtonTitle:@"Cancel"
                           destructiveButtonTitle:@"Delete File"
                           otherButtonTitles:@"Rename File", @"Email File", nil];
    [menu showInView:self.view];
}

// This callback fakes progress via setProgress:
- (void) incrementBar: (id) timer
{
    amountDone += 1.0f;
    [progressView setProgress: (amountDone / 20.0)];
    if (amountDone > 20.0)
    {
        [self.actionSheet dismissWithClickedButtonIndex:0 animated:YES];
        self.actionSheet = nil;
        [timer invalidate];
    }
}

// Load the progress bar onto an actionsheet backing
-(void) action: (UIBarButtonItem *) item
{
    amountDone = 0.0f;
    self.actionSheet = [[[UIActionSheet alloc] initWithTitle:@"Downloading data. Please Wait\n\n\n" delegate:nil cancelButtonTitle:nil destructiveButtonTitle: nil otherButtonTitles: nil] autorelease];
    progressView = [[UIProgressView alloc] initWithFrame:CGRectMake(0.0f, 40.0f, 220.0f, 90.0f)];
    [progressView setProgressViewStyle: UIProgressViewStyleDefault];
    [actionSheet addSubview:progressView];
    [progressView release];
   
   
    // Create the demonstration updates
    [progressView setProgress:(amountDone = 0.0f)];
    [NSTimer scheduledTimerWithTimeInterval: 0.35 target: self selector:@selector(incrementBar:) userInfo: nil repeats: YES];
    [actionSheet showInView:self.view];
    progressView.center = CGPointMake(actionSheet.center.x, progressView.center.y);
}