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Code Quality Rank: L4
Programming language: Objective-C
License: MIT License
Tags: UI     Pull to Refresh    
Latest version: v0.2

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README

PullToRefreshCoreText

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

Demo

alt tag

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. Init function has parameters for creating this texts with its strings, text colors and fonts. Last parameter is the block function where loading code goes to.

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

   - (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. Otherwise you stuck in refreshing state always.

Credits

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