Updated for 4.0 and retina display.

Demo/TableViewPull/Classes/View/RefreshTableHeaderView/EGORefreshTableHeaderView.h

@@ -36,10 +36,10 @@ typedef enum{
 
 @interface EGORefreshTableHeaderView : UIView {
 
-	UILabel *lastUpdatedLabel;
-	UILabel *statusLabel;
-	CALayer *arrowImage;
-	UIActivityIndicatorView *activityView;
+	UILabel *_lastUpdatedLabel;
+	UILabel *_statusLabel;
+	CALayer *_arrowImage;
+	UIActivityIndicatorView *_activityView;
 
 	EGOPullRefreshState _state;
 

Demo/TableViewPull/Classes/View/RefreshTableHeaderView/EGORefreshTableHeaderView.m

@@ -29,7 +29,7 @@
 
 #define TEXT_COLOR	 [UIColor colorWithRed:87.0/255.0 green:108.0/255.0 blue:137.0/255.0 alpha:1.0]
 #define BORDER_COLOR [UIColor colorWithRed:87.0/255.0 green:108.0/255.0 blue:137.0/255.0 alpha:1.0]
-
+#define FLIP_ANIMATION_DURATION 0.18f
 
 @implementation EGORefreshTableHeaderView
 
@@ -40,70 +40,71 @@ - (id)initWithFrame:(CGRect)frame {
     if (self = [super initWithFrame:frame]) {
 
 		self.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-
-		lastUpdatedLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 30.0f, self.frame.size.width, 20.0f)];
-		lastUpdatedLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-		lastUpdatedLabel.font = [UIFont systemFontOfSize:12.0f];
-		lastUpdatedLabel.textColor = TEXT_COLOR;
-		lastUpdatedLabel.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
-		lastUpdatedLabel.shadowOffset = CGSizeMake(0.0f, 1.0f);
-		lastUpdatedLabel.backgroundColor = [UIColor clearColor];
-		lastUpdatedLabel.textAlignment = UITextAlignmentCenter;
-		[self addSubview:lastUpdatedLabel];
-		[lastUpdatedLabel release];
+
+		UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 30.0f, self.frame.size.width, 20.0f)];
+		label.autoresizingMask = UIViewAutoresizingFlexibleWidth;
+		label.font = [UIFont systemFontOfSize:12.0f];
+		label.textColor = TEXT_COLOR;
+		label.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
+		label.shadowOffset = CGSizeMake(0.0f, 1.0f);
+		label.backgroundColor = [UIColor clearColor];
+		label.textAlignment = UITextAlignmentCenter;
+		[self addSubview:label];
+		_lastUpdatedLabel=label;
+		[label release];
 
 		if ([[NSUserDefaults standardUserDefaults] objectForKey:@"EGORefreshTableView_LastRefresh"]) {
-			lastUpdatedLabel.text = [[NSUserDefaults standardUserDefaults] objectForKey:@"EGORefreshTableView_LastRefresh"];
+			_lastUpdatedLabel.text = [[NSUserDefaults standardUserDefaults] objectForKey:@"EGORefreshTableView_LastRefresh"];
 		} else {
 			[self setCurrentDate];
 		}
 
-		statusLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 48.0f, self.frame.size.width, 20.0f)];
-		statusLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-		statusLabel.font = [UIFont boldSystemFontOfSize:13.0f];
-		statusLabel.textColor = TEXT_COLOR;
-		statusLabel.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
-		statusLabel.shadowOffset = CGSizeMake(0.0f, 1.0f);
-		statusLabel.backgroundColor = [UIColor clearColor];
-		statusLabel.textAlignment = UITextAlignmentCenter;
-		[self setState:EGOOPullRefreshNormal];
-		[self addSubview:statusLabel];
-		[statusLabel release];
+		label = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 48.0f, self.frame.size.width, 20.0f)];
+		label.autoresizingMask = UIViewAutoresizingFlexibleWidth;
+		label.font = [UIFont boldSystemFontOfSize:13.0f];
+		label.textColor = TEXT_COLOR;
+		label.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
+		label.shadowOffset = CGSizeMake(0.0f, 1.0f);
+		label.backgroundColor = [UIColor clearColor];
+		label.textAlignment = UITextAlignmentCenter;
+		[self addSubview:label];
+		_statusLabel=label;
+		[label release];
+
+		CALayer *layer = [[CALayer alloc] init];
+		layer.frame = CGRectMake(25.0f, frame.size.height - 65.0f, 30.0f, 55.0f);
+		layer.contentsGravity = kCAGravityResizeAspect;
+		layer.contents = (id)[UIImage imageNamed:@"blueArrow.png"].CGImage;
+
+#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 40000
+		if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
+			layer.contentsScale = [[UIScreen mainScreen] scale];
+		}
+#endif
+
+		[[self layer] addSublayer:layer];
+		_arrowImage=layer;
+		[layer release];
 
-		arrowImage = [[CALayer alloc] init];
-		arrowImage.frame = CGRectMake(25.0f, frame.size.height - 65.0f, 30.0f, 55.0f);
-		arrowImage.contentsGravity = kCAGravityResizeAspect;
-		arrowImage.contents = (id)[UIImage imageNamed:@"blueArrow.png"].CGImage;
-		[[self layer] addSublayer:arrowImage];
-		[arrowImage release];
+		UIActivityIndicatorView *view = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
+		view.frame = CGRectMake(25.0f, frame.size.height - 38.0f, 20.0f, 20.0f);
+		[self addSubview:view];
+		_activityView = view;
+		[view release];
 
-		activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
-		activityView.frame = CGRectMake(25.0f, frame.size.height - 38.0f, 20.0f, 20.0f);
-		activityView.hidesWhenStopped = YES;
-		[self addSubview:activityView];
-		[activityView release];
+		[self setState:EGOOPullRefreshNormal];
 
     }
     return self;
 }
 
-- (void)drawRect:(CGRect)rect{
-	CGContextRef context = UIGraphicsGetCurrentContext();
-	CGContextDrawPath(context,  kCGPathFillStroke);
-	[BORDER_COLOR setStroke];
-	CGContextBeginPath(context);
-	CGContextMoveToPoint(context, 0.0f, self.bounds.size.height - 1);
-	CGContextAddLineToPoint(context, self.bounds.size.width, self.bounds.size.height - 1);
-	CGContextStrokePath(context);
-}
-
 - (void)setCurrentDate {
-	NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
+	NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
 	[formatter setAMSymbol:@"AM"];
 	[formatter setPMSymbol:@"PM"];
 	[formatter setDateFormat:@"MM/dd/yyyy hh:mm:a"];
-	lastUpdatedLabel.text = [NSString stringWithFormat:@"Last Updated: %@", [formatter stringFromDate:[NSDate date]]];
-	[[NSUserDefaults standardUserDefaults] setObject:lastUpdatedLabel.text forKey:@"EGORefreshTableView_LastRefresh"];
+	_lastUpdatedLabel.text = [NSString stringWithFormat:@"Last Updated: %@", [formatter stringFromDate:[NSDate date]]];
+	[[NSUserDefaults standardUserDefaults] setObject:_lastUpdatedLabel.text forKey:@"EGORefreshTableView_LastRefresh"];
 	[[NSUserDefaults standardUserDefaults] synchronize];
 	[formatter release];
 }
@@ -113,38 +114,38 @@ - (void)setState:(EGOPullRefreshState)aState{
 	switch (aState) {
 		case EGOOPullRefreshPulling:
 
-			statusLabel.text = @"Release to refresh...";
+			_statusLabel.text = NSLocalizedString(@"Release to refresh...", @"Release to refresh status");
 			[CATransaction begin];
-			[CATransaction setAnimationDuration:.18];
-			arrowImage.transform = CATransform3DMakeRotation((M_PI / 180.0) * 180.0f, 0.0f, 0.0f, 1.0f);
+			[CATransaction setAnimationDuration:FLIP_ANIMATION_DURATION];
+			_arrowImage.transform = CATransform3DMakeRotation((M_PI / 180.0) * 180.0f, 0.0f, 0.0f, 1.0f);
 			[CATransaction commit];
 
 			break;
 		case EGOOPullRefreshNormal:
 
 			if (_state == EGOOPullRefreshPulling) {
 				[CATransaction begin];
-				[CATransaction setAnimationDuration:.18];
-				arrowImage.transform = CATransform3DIdentity;
+				[CATransaction setAnimationDuration:FLIP_ANIMATION_DURATION];
+				_arrowImage.transform = CATransform3DIdentity;
 				[CATransaction commit];
 			}
 
-			statusLabel.text = @"Pull down to refresh...";
-			[activityView stopAnimating];
+			_statusLabel.text = NSLocalizedString(@"Pull down to refresh...", @"Pull down to refresh status");
+			[_activityView stopAnimating];
 			[CATransaction begin];
 			[CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions]; 
-			arrowImage.hidden = NO;
-			arrowImage.transform = CATransform3DIdentity;
+			_arrowImage.hidden = NO;
+			_arrowImage.transform = CATransform3DIdentity;
 			[CATransaction commit];
 
 			break;
 		case EGOOPullRefreshLoading:
 
-			statusLabel.text = @"Loading...";
-			[activityView startAnimating];
+			_statusLabel.text = NSLocalizedString(@"Loading...", @"Loading Status");
+			[_activityView startAnimating];
 			[CATransaction begin];
 			[CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions]; 
-			arrowImage.hidden = YES;
+			_arrowImage.hidden = YES;
 			[CATransaction commit];
 
 			break;
@@ -156,10 +157,10 @@ - (void)setState:(EGOPullRefreshState)aState{
 }
 
 - (void)dealloc {
-	activityView = nil;
-	statusLabel = nil;
-	arrowImage = nil;
-	lastUpdatedLabel = nil;
+	_activityView = nil;
+	_statusLabel = nil;
+	_arrowImage = nil;
+	_lastUpdatedLabel = nil;
     [super dealloc];
 }