Awesome

PullToRefreshCoreText

PullToRefresh extension for all UIScrollView type classes with animated text drawing style<br>

Demo

Install

Manual
Copy the files in the folder named PullToRefreshCoreText to your project.
Import the "UIScrollView+PullToRefreshCoreText.h"

Cocoapods

    source 'https://github.com/CocoaPods/Specs.git'
    pod 'PullToRefreshCoreText', '~> 0.2'

Usage

- (void)addPullToRefreshWithPullText:(NSString *)pullText
                       pullTextColor:(UIColor *)pullTextColor
                        pullTextFont:(UIFont *)pullTextFont
                      refreshingText:(NSString *)refreshingText
                 refreshingTextColor:(UIColor *)refreshingTextColor
                  refreshingTextFont:(UIFont *)refreshingTextFont
                              action:(pullToRefreshAction)action;

It has 2 main texts, pulling and refreshing. <br> Init function has parameters for creating this texts with its strings, text colors and fonts. <br> Last parameter is the block function where loading code goes to. <br>

Alternatively I added some other init methods if you want to use same texts or fonts etc. <br>

   - (void)addPullToRefreshWithPullText:(NSString *)pullText
                                 action:(pullToRefreshAction)action;
   
   - (void)addPullToRefreshWithPullText:(NSString *)pullText
                         refreshingText:(NSString *)refreshingText
                                 action:(pullToRefreshAction)action;
   
   - (void)addPullToRefreshWithPullText:(NSString *)pullText
                                   font:(UIFont *)font
                                 action:(pullToRefreshAction)action;
   
   
   - (void)addPullToRefreshWithPullText:(NSString *)pullText
                         refreshingText:(NSString *)refreshingText
                                   font:(UIFont *)font
                                 action:(pullToRefreshAction)action;
   
   
   - (void)addPullToRefreshWithPullText:(NSString *)pullText
                          pullTextColor:(UIColor *)pullTextColor
                         refreshingText:(NSString *)refreshingText
                    refreshingTextColor:(UIColor *)refreshingTextColor
                                   font:(UIFont *)font
                                 action:(pullToRefreshAction)action;

Implementation

//Create ScrollView
self.scrollView = [[UIScrollView alloc] initWithFrame:self.view.frame];
[self.scrollView setContentSize:CGSizeMake(self.view.frame.size.width, self.scrollView.frame.size.height + 1)];
[self.view addSubview:self.scrollView];


//add pull to refresh
__weak typeof(self) weakSelf = self;
[self.scrollView addPullToRefreshWithPullText:@"Pull To Refresh" pullTextColor:[UIColor blackColor] pullTextFont:DefaultTextFont refreshingText:@"Refreshing" refreshingTextColor:[UIColor blueColor] refreshingTextFont:DefaultTextFont action:^{
    [weakSelf loadItems];
}];

One last thing: you should call the [scrollView finishLoading] method after the load finishes.<br> Otherwise you stuck in refreshing state always.

Credits

Blogs and codes I used for creating this<br> https://github.com/jrturton/NSString-Glyphs<br> http://www.codeproject.com/Articles/109729/Low-level-text-rendering<br> http://ronnqvi.st/controlling-animation-timing/<br>