FLEX/Example/UICatalog/AAPLAlertViewController.m

/*
        File: AAPLAlertViewController.m
    Abstract: The view controller that demonstrates how to use UIAlertView.
     Version: 2.12
    
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*/

#import "AAPLAlertViewController.h"

// Corresponds to the row in the alert view section.
typedef NS_ENUM(NSInteger, AAPLAlertsViewControllerTableRow) {
    AAPLAlertsViewControllerAlertViewRowSimple = 0,
    AAPLAlertsViewControllerAlertViewRowOkayCancel,
    AAPLAlertsViewControllerAlertViewRowOther,
    AAPLAlertsViewControllerAlertViewRowTextEntry,
    AAPLAlertsViewControllerActionSheetRowTextEntrySecure
};


@interface AAPLAlertViewController() <UIAlertViewDelegate>
@end


#pragma mark -

@implementation AAPLAlertViewController

// Show an alert with an "Okay" button.
- (void)showSimpleAlert {
    NSString *title = NSLocalizedString(@"A Short Title Is Best", nil);
    NSString *message = NSLocalizedString(@"A message should be a short, complete sentence.", nil);
    NSString *cancelButtonTitle = NSLocalizedString(@"OK", nil);

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:cancelButtonTitle otherButtonTitles:nil];

    [alert show];
}

// Show an alert with an "Okay" and "Cancel" button.
- (void)showOkayCancelAlert {
    NSString *title = NSLocalizedString(@"A Short Title Is Best", nil);
    NSString *message = NSLocalizedString(@"A message should be a short, complete sentence.", nil);
    NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);
    NSString *otherButtonTitle = NSLocalizedString(@"OK", nil);

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:cancelButtonTitle otherButtonTitles:otherButtonTitle, nil];

    [alert show];
}

// Show an alert with two custom buttons.
- (void)showOtherAlert {
    NSString *title = NSLocalizedString(@"A Short Title Is Best", nil);
    NSString *message = NSLocalizedString(@"A message should be a short, complete sentence.", nil);
    NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);
    NSString *otherButtonTitleOne = NSLocalizedString(@"Choice One", nil);
    NSString *otherButtonTitleTwo = NSLocalizedString(@"Choice Two", nil);

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:cancelButtonTitle otherButtonTitles:otherButtonTitleOne, otherButtonTitleTwo, nil];

    [alert show];
}

// Show a text entry alert with two custom buttons.
- (void)showTextEntryAlert {
    NSString *title = NSLocalizedString(@"A Short Title Is Best", nil);
    NSString *message = NSLocalizedString(@"A message should be a short, complete sentence.", nil);
    NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);
    NSString *otherButtonTitle = NSLocalizedString(@"OK", nil);
    
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:cancelButtonTitle otherButtonTitles:otherButtonTitle, nil];

    alert.alertViewStyle = UIAlertViewStylePlainTextInput;

    [alert show];
}

// Show a secure text entry alert with two custom buttons.
- (void)showSecureTextEntryAlert {
    NSString *title = NSLocalizedString(@"A Short Title Is Best", nil);
    NSString *message = NSLocalizedString(@"A message should be a short, complete sentence.", nil);
    NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);
    NSString *otherButtonTitle = NSLocalizedString(@"OK", nil);

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:cancelButtonTitle otherButtonTitles:otherButtonTitle, nil];

    alert.alertViewStyle = UIAlertViewStyleSecureTextInput;
    
    [alert show];
}


#pragma mark - UIAlertViewDelegate

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (alertView.cancelButtonIndex == buttonIndex) {
        NSLog(@"Alert view clicked with the cancel button index.");
    }
    else {
        NSLog(@"Alert view clicked with button at index %ld.", (long)buttonIndex);
    }
}

- (BOOL)alertViewShouldEnableFirstOtherButton:(UIAlertView *)alertView {
    // Enforce a minimum length of >= 5 characters for secure text alert views.
    if (alertView.alertViewStyle == UIAlertViewStyleSecureTextInput) {
        return [[alertView textFieldAtIndex:0].text length] >= 5;
    }

    return YES;
}


#pragma mark - UITableViewDelegate

// Determine the action to perform based on the selected cell.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    AAPLAlertsViewControllerTableRow row = indexPath.row;

    switch (row) {
        case AAPLAlertsViewControllerAlertViewRowSimple:
            [self showSimpleAlert];
            break;
        case AAPLAlertsViewControllerAlertViewRowOkayCancel:
            [self showOkayCancelAlert];
            break;
        case AAPLAlertsViewControllerAlertViewRowOther:
            [self showOtherAlert];
            break;
        case AAPLAlertsViewControllerAlertViewRowTextEntry:
            [self showTextEntryAlert];
            break;
        case AAPLAlertsViewControllerActionSheetRowTextEntrySecure:
            [self showSecureTextEntryAlert];
            break;
        default:
            break;
    }

    [tableView deselectRowAtIndexPath:indexPath animated:YES];
}

@end