VTMagic

VTMagic is a page manager library, you can custom every page controller by different identifier if you need. It's so easy to use!

Usage

To run the example project, clone the repo, and run pod install from the Example directory first.

Installation

VTMagic is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "VTMagic"

Integrate

- (void)viewDidLoad
{
    [super viewDidLoad];

    [self addChildViewController:self.magicController];
    [self.view addSubview:_magicController.view];
    [_magicController didMoveToParentViewController:self];
    [_magicController.magicView reloadData];
}

- (VTMagicController *)magicController
{
    if (!_magicController) {
        _magicController = [[VTMagicController alloc] init];
        _magicController.magicView.navigationColor = [UIColor whiteColor];
        _magicController.magicView.sliderColor = [UIColor redColor];
        _magicController.magicView.layoutStyle = VTLayoutStyleDivide;
        _magicController.magicView.switchStyle = VTSwitchStyleDefault;
        _magicController.magicView.navigationHeight = 40.f;
        _magicController.magicView.dataSource = self;
        _magicController.magicView.delegate = self;
    }
    return _magicController;
}

or like this

#import "VTMagicController.h"

@interface ViewController : VTMagicController

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.magicView.navigationColor = [UIColor whiteColor];
    self.magicView.sliderColor = [UIColor redColor];
    self.magicView.layoutStyle = VTLayoutStyleDefault;
    self.magicView.switchStyle = VTSwitchStyleDefault;
    self.magicView.navigationHeight = 40.f;
    self.magicView.dataSource = self;
    self.magicView.delegate = self;
    
    [self.magicView reloadData];
}

Protocals

You must conform to <VTMagicViewDataSource>, <VTMagicViewDelegate> and <VTMagicReuseProtocol> are optional.

VTMagicViewDataSource

- (NSArray<NSString *> *)menuTitlesForMagicView:(VTMagicView *)magicView
{
    return _menuList;
}

- (UIButton *)magicView:(VTMagicView *)magicView menuItemAtIndex:(NSUInteger)itemIndex
{
    static NSString *itemIdentifier = @"itemIdentifier";
    UIButton *menuItem = [magicView dequeueReusableItemWithIdentifier:itemIdentifier];
    if (!menuItem) {
        menuItem = [UIButton buttonWithType:UIButtonTypeCustom];
        [menuItem setTitleColor:RGBCOLOR(50, 50, 50) forState:UIControlStateNormal];
        [menuItem setTitleColor:RGBCOLOR(169, 37, 37) forState:UIControlStateSelected];
        menuItem.titleLabel.font = [UIFont fontWithName:@"Helvetica" size:16.f];
    }
    return menuItem;
}

- (UIViewController *)magicView:(VTMagicView *)magicView viewControllerAtPage:(NSUInteger)pageIndex
{
    if (0 == pageIndex) {
        static NSString *recomId = @"recom.identifier";
        VTRecomViewController *recomViewController = [magicView dequeueReusablePageWithIdentifier:recomId];
        if (!recomViewController) {
            recomViewController = [[VTRecomViewController alloc] init];
        }
        return recomViewController;
    }

    static NSString *gridId = @"page.identifier";
    VTGridViewController *viewController = [magicView dequeueReusablePageWithIdentifier:gridId];
    if (!viewController) {
        viewController = [[VTGridViewController alloc] init];
    }
    return viewController;
}

VTMagicViewDelegate

- (void)magicView:(VTMagicView *)magicView viewDidAppeare:(UIViewController *)viewController atPage:(NSUInteger)pageIndex
{
    NSLog(@"index:%ld viewDidAppeare:%@",pageIndex, viewController.view);
}

- (void)magicView:(VTMagicView *)magicView viewDidDisappeare:(UIViewController *)viewController atPage:(NSUInteger)pageIndex
{
    NSLog(@"index:%ld viewDidDisappeare:%@",pageIndex, viewController.view);
}

- (void)magicView:(VTMagicView *)magicView didSelectItemAtIndex:(NSUInteger)itemIndex
{
    NSLog(@"didSelectItemAtIndex:%ld", (long)itemIndex);
}

VTMagicReuseProtocol

- (void)vtm_prepareForReuse
{
    NSLog(@"clear old data if needed:%@", self);
}

Features

Obtain magicController

You can obtain the nearest magicController in any child view controller which is conforms to <VTMagicProtocol>, after you import file VTMagic.h.

NSInteger currentPage = [self.magicController currentPage];
UIViewController *viewController = self.magicController.currentViewController;

Switch to specified page

[self.magicView switchToPage:3 animated:YES];

or like this

[self.magicController switchToPage:3 animated:YES];

Obtain specified view controller

UIViewController *viewController = [self.magicView viewControllerAtPage:3];

or like this

UIViewController *viewController = [self.magicController viewControllerAtPage:3];

License

VTMagic is released under the MIT license. See LICENSE for details.