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#defines for use with feature obj_arc + protocol for more MVC-like behavior #25

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#defines for use with feature obj_arc + protocol for more MVC-like behavior #25

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5 changes: 5 additions & 0 deletions Classes/DemoTableViewController.m
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Original file line number Diff line number Diff line change
Expand Up @@ -8,11 +8,13 @@

#import "DemoTableViewController.h"

@interface DemoTableViewController () <PullRefreshTableViewDelegate>

@implementation DemoTableViewController

- (void)viewDidLoad {
[super viewDidLoad];
self.refreshDelegate = self;

self.title = @"Pull to Refresh";
items = [[NSMutableArray alloc] initWithObjects:@"What time is it?", nil];
Expand Down Expand Up @@ -40,6 +42,9 @@ - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(N
return cell;
}

#pragma mark - PullRefreshTableViewDelegate implementation
#pragma mark @required

- (void)refresh {
[self performSelector:@selector(addItem) withObject:nil afterDelay:2.0];
}
Expand Down
31 changes: 26 additions & 5 deletions Classes/PullRefreshTableViewController.h
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,9 @@

#import <UIKit/UIKit.h>

@protocol PullRefreshTableViewDelegate
- (void)refresh;
@end

@interface PullRefreshTableViewController : UITableViewController {
UIView *refreshHeaderView;
Expand All @@ -42,10 +45,29 @@
NSString *textLoading;
}

@property (nonatomic, retain) UIView *refreshHeaderView;
@property (nonatomic, retain) UILabel *refreshLabel;
@property (nonatomic, retain) UIImageView *refreshArrow;
@property (nonatomic, retain) UIActivityIndicatorView *refreshSpinner;
#ifndef PTR_STRONG
#if __has_feature(objc_arc)
#define PTR_STRONG strong
#else
#define PTR_STRONG retain
#endif
#endif

#ifndef PTR_WEAK
#if __has_feature(objc_arc_weak)
#define PTR_WEAK weak
#elif __has_feature(objc_arc)
#define PTR_WEAK unsafe_unretained
#else
#define PTR_WEAK assign
#endif
#endif

@property (nonatomic, PTR_WEAK) id<PullRefreshTableViewDelegate> refreshDelegate;
@property (nonatomic, PTR_STRONG) UIView *refreshHeaderView;
@property (nonatomic, PTR_STRONG) UILabel *refreshLabel;
@property (nonatomic, PTR_STRONG) UIImageView *refreshArrow;
@property (nonatomic, PTR_STRONG) UIActivityIndicatorView *refreshSpinner;
@property (nonatomic, copy) NSString *textPull;
@property (nonatomic, copy) NSString *textRelease;
@property (nonatomic, copy) NSString *textLoading;
Expand All @@ -54,6 +76,5 @@
- (void)addPullToRefreshHeader;
- (void)startLoading;
- (void)stopLoading;
- (void)refresh;

@end
14 changes: 9 additions & 5 deletions Classes/PullRefreshTableViewController.m
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,7 @@

@implementation PullRefreshTableViewController

@synthesize textPull, textRelease, textLoading, refreshHeaderView, refreshLabel, refreshArrow, refreshSpinner;
@synthesize textPull, textRelease, textLoading, refreshDelegate, refreshHeaderView, refreshLabel, refreshArrow, refreshSpinner;

- (id)initWithStyle:(UITableViewStyle)style {
self = [super initWithStyle:style];
Expand Down Expand Up @@ -67,9 +67,9 @@ - (void)viewDidLoad {
}

- (void)setupStrings{
textPull = [[NSString alloc] initWithString:@"Pull down to refresh..."];
textRelease = [[NSString alloc] initWithString:@"Release to refresh..."];
textLoading = [[NSString alloc] initWithString:@"Loading..."];
textPull = NSLocalizedString(@"Pull down to refresh...", nil);
textRelease = NSLocalizedString(@"Release to refresh...", nil);
textLoading = NSLocalizedString(@"Loading...", nil);
}

- (void)addPullToRefreshHeader {
Expand Down Expand Up @@ -145,7 +145,7 @@ - (void)startLoading {
}];

// Refresh action!
[self refresh];
[self.refreshDelegate refresh];
}

- (void)stopLoading {
Expand All @@ -168,12 +168,15 @@ - (void)stopLoadingComplete {
[refreshSpinner stopAnimating];
}

/*
- (void)refresh {
// This is just a demo. Override this method with your custom reload action.
// Don't forget to call stopLoading at the end.
[self performSelector:@selector(stopLoading) withObject:nil afterDelay:2.0];
}
*/

#if !__has_feature(objc_arc)
- (void)dealloc {
[refreshHeaderView release];
[refreshLabel release];
Expand All @@ -184,5 +187,6 @@ - (void)dealloc {
[textLoading release];
[super dealloc];
}
#endif

@end