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M6UniversalParallaxViewController https://github.com/peterpaulis/M6UniversalParallaxViewController

M6ParallaxController

Parallax controller for a parallaxed view and a table view

Version 1.1

Perfect smooth scrolling, however table section headers are no longer fully supported
Updated samples, with code to handle clicking on the top parallaxed view
Changed handling of height change

##Usage (Without storyboards)

see sample

##Storyboard Usage

Add M6ParallaxTableViewController.h / .m and UIViewController+M6ParallaxController.h / .m to your project
Create a new ViewController, which subclasses M6ParallaxController

#import <UIKit/UIKit.h>
#import "M6ParallaxController.h"
            
@interface MyParallaxController : M6ParallaxController
            
@end

In storyboard, create a view controller and set its class to MyParallaxController
Add a UIViewController, which will be parallaxed. Set its Storyboard ID to let's say "ParallaxedViewController"
Add a UITableViewController, and create a custom class for it, lets say MyTableViewController (which subclasses the UITableViewController). Inside your implementation of MyTableViewController add :

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    
    [self.parallaxController tableViewControllerDidScroll:self];
    
}

Assign a StoryboardID to your MyTableViewController, let's say "MyTableViewController"
In my MyParallaxController add

-(void) awakeFromNib
{
    UIViewController * vc = [self.storyboard instantiateViewControllerWithIdentifier:@"ParallaxedViewController"];
    UITableViewController * tvc = [self.storyboard instantiateViewControllerWithIdentifier:@"MyTableViewController"];
    
    [self setupWithTopViewController:vc height:100 tableViewController:tvc];
}

##Special effects

if you want to perform special action on resizing the parallaxed view (as in sample)
in your custom subclass of M6ParallaxController overwrite this method

- (void)willChangeHeightOfTopViewControllerFromHeight:(CGFloat)oldHeight toHeight:(CGFloat)newHeight;

inside implement custom functionality (see sample)

##Tapping the top parallaxed controller

to handle interaction on the top parallaxed controller, you need to add a tap gesture recognizer as in the sample
to recognize tapping on a specific area, you will have to overwrite

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

and test for a specific area

see storyboard sample for implementation example

#Tapping buttons in the top parallaxed controller

the key is to add a gesture recognizer and test on the different buttons, than send the action to the button, and handle the click as it would come from a user
see xib sample for implementationexample

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    
    CGPoint tapPoint = [touch locationInView:self.view];;
    
    if (([self.topViewController.view hitTest:tapPoint withEvent:nil])) {
    
        MyTopViewController * mtvc = (MyTopViewController *)self.topViewController;
        
        // check for tap into button 1
        tapPoint = [touch locationInView:mtvc.button1];
        if ([mtvc.button1 hitTest:tapPoint withEvent:nil]) {
            [mtvc.button1 sendActionsForControlEvents:UIControlEventTouchUpInside];
            return YES;
        }
        
        ...
    }
    
    return NO;
}

##Table view sections

these are no longer supported, to provide a better scrolling experience (however you can enable sections support in M6ParallaxController.m by uncommenting lines, but not that scrolling will not be so smooth)

##License Apache License 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt

##Issues There may be an issue with using a navigation controller in that case use the following code. The problem is, that the frame changes, and is not final in viewDidLoad

- (void)viewDidAppear:(BOOL)animated {
    
    [super viewDidAppear:animated];
    
    static dispatch_once_t once;
    dispatch_once(&once, ^{
        // setup
        {
            UIViewController * topViewController = [TopDesireViewController new];
            UITableViewController * tableViewController = [DesiresListingViewController new];
            
            [self setupWithTopViewController:topViewController height:230.f tableViewController:tableViewController];
            
        }
    });
    
}

##Credits min:60 - Building perfect mobile apps, for affordable price - http://min60.com

License

peterpaulis/M6ParallaxController

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