Create animation for set of Images

 // The root view of the view controller set in Interface Builder is a UIImageView.

    UIImageView *imageView = (UIImageView *)self.view;

    

    imageView.animationImages = @[

                          [UIImage imageNamed:@"image_animal_1"],

                          [UIImage imageNamed:@"image_animal_2"],

                          [UIImage imageNamed:@"image_animal_3"],

                          [UIImage imageNamed:@"image_animal_4"],

                          [UIImage imageNamed:@"image_animal_5"]

                         ];

    

    // We want the image to be scaled to the correct aspect ratio within imageView's bounds.

    imageView.contentMode = UIViewContentModeScaleAspectFit;

    

    // If the image does not have the same aspect ratio as imageView's bounds, then imageView's backgroundColor will be applied to the "empty" space.

    imageView.backgroundColor = [UIColor whiteColor];

    

    imageView.animationDuration = 5;

    [imageView startAnimating];

    

    imageView.isAccessibilityElement = YES;

    imageView.accessibilityLabel = NSLocalizedString(@"Animated", nil);

ActionSheet using UIAlertController

// Show a dialog with an "Okay" and "Cancel" button.

- (void)showOkayCancelActionSheet:(NSIndexPath *)selectedPath {

    NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);

    NSString *destructiveButtonTitle = NSLocalizedString(@"OK", nil);

    

    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];

    

    // Create the actions.

    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:cancelButtonTitle style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {

        NSLog(@"The \"Okay/Cancel\" alert action sheet's cancel action occured.");

    }];

    

    UIAlertAction *destructiveAction = [UIAlertAction actionWithTitle:destructiveButtonTitle style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {

        NSLog(@"The \"Okay/Cancel\" alert action sheet's destructive action occured.");

    }];

    

    // Add the actions.

    [alertController addAction:cancelAction];

    [alertController addAction:destructiveAction];

    

    // Configure the alert controller's popover presentation controller if it has one.

    UIPopoverPresentationController *popoverPresentationController = [alertController popoverPresentationController];

    if (popoverPresentationController) {

        UITableViewCell *selectedCell = [self.tableView cellForRowAtIndexPath:selectedPath];

        popoverPresentationController.sourceRect = selectedCell.frame;

        popoverPresentationController.sourceView = self.view;

        popoverPresentationController.permittedArrowDirections = UIPopoverArrowDirectionUp;

    }

    

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

}

Alert using UIAlertController (TextField and Two buttons)

// Show a text entry alert with two custom buttons.

- (void)showTextEntryAlert {

    NSString *title = NSLocalizedString(@"Short_title", nil);

    NSString *message = NSLocalizedString(@"Message", nil);

    NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);

    NSString *otherButtonTitle = NSLocalizedString(@"OK", nil);

    

    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];

    

    // Add the text field for text entry.

    [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {

        // If you need to customize the text field, you can do so here.

    }];

    

    // Create the actions.

    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:cancelButtonTitle style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {

        NSLog(@"The \"Text Entry\" alert's cancel action occured.");

    }];

    

    UIAlertAction *otherAction = [UIAlertAction actionWithTitle:otherButtonTitle style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {

        NSLog(@"The \"Text Entry\" alert's other action occured.");

    }];

    

    // Add the actions.

    [alertController addAction:cancelAction];

    [alertController addAction:otherAction];

    

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

}

Create Attribute Text button

- (void)configureAttributedTextSystemButton {

    // Set the button's title for normal state.

    NSDictionary *normalTitleAttributes = @{

               NSForegroundColorAttributeName: [UIColor customBlueColor],

               NSStrikethroughStyleAttributeName: @(NSUnderlineStyleSingle)

                                        };

    

    NSAttributedString *normalAttributedTitle = [[NSAttributedString alloc]
               initWithString:NSLocalizedString(@"Button", nil)
               attributes:normalTitleAttributes];

    [self.attributedTextButton setAttributedTitle:normalAttributedTitle 
               forState:UIControlStateNormal];

    

    // Set the button's title for highlighted state.

    NSDictionary *highlightedTitleAttributes = @{                                                         
             NSForegroundColorAttributeName : [UIColor customGreenColor],                                                
             NSStrikethroughStyleAttributeName: @(NSUnderlineStyleThick)

                                             };

    

    NSAttributedString *highlightedAttributedTitle = [[NSAttributedString
            alloc] initWithString:NSLocalizedString(@"Button", nil)        
            attributes:highlightedTitleAttributes];

    [self.attributedTextButton setAttributedTitle:highlightedAttributedTitle

            forState:UIControlStateHighlighted];

    

    [self.attributedTextButton addTarget:self   
            action:@selector(buttonClicked:) 
            forControlEvents:UIControlEventTouchUpInside];

}