extending functionality to handle footer also

.gitignore

@@ -0,0 +1,3 @@
+*.xcworkspace
+xcuserdata
+build

Demo/TableViewPull/Classes/Controller/RootViewController/RootViewController.h

@@ -25,12 +25,18 @@
 //
 
 @class EGORefreshTableHeaderView;
+@class EGORefreshTableFooterView;
 @interface RootViewController : UITableViewController  <UITableViewDelegate, UITableViewDataSource>{
 	EGORefreshTableHeaderView *refreshHeaderView;
+    EGORefreshTableFooterView *refreshFooterView;
 
 	//  Reloading should really be your tableviews model class
 	//  Putting it here for demo purposes 
-	BOOL _reloading;
+	BOOL _reloadingHeader;
+    BOOL _reloadingFooter;
+
+    //  Sample data - do not include in your project
+    NSMutableArray *_sampleData;
 }
 
 @property(assign,getter=isReloading) BOOL reloading;

Demo/TableViewPull/Classes/Controller/RootViewController/RootViewController.m

@@ -26,10 +26,14 @@
 
 #import "RootViewController.h"
 #import "EGORefreshTableHeaderView.h"
+#import "EGORefreshTableFooterView.h"
 
 @interface RootViewController (Private)
 
 - (void)dataSourceDidFinishLoadingNewData;
+- (float)tableViewHeight;
+- (void)repositionRefreshHeaderView;
+- (float)endOfTableView:(UIScrollView *)scrollView;
 
 @end
 
@@ -41,14 +45,24 @@ @implementation RootViewController
 
 - (void)viewDidLoad {
     [super viewDidLoad];
-
+
+    _sampleData = [[NSMutableArray alloc] initWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",nil];
+    [self.tableView reloadData];
 	if (refreshHeaderView == nil) {
 		refreshHeaderView = [[EGORefreshTableHeaderView alloc] initWithFrame:CGRectMake(0.0f, 0.0f - self.tableView.bounds.size.height, 320.0f, self.tableView.bounds.size.height)];
 		refreshHeaderView.backgroundColor = [UIColor colorWithRed:226.0/255.0 green:231.0/255.0 blue:237.0/255.0 alpha:1.0];
 		[self.tableView addSubview:refreshHeaderView];
 		self.tableView.showsVerticalScrollIndicator = YES;
 		[refreshHeaderView release];
 	}
+
+    if (refreshFooterView == nil) {
+        refreshFooterView = [[EGORefreshTableFooterView alloc] initWithFrame:CGRectMake(0.0f, [self tableViewHeight], 320.0f, 600.0f)];
+		refreshFooterView.backgroundColor = [UIColor colorWithRed:226.0/255.0 green:231.0/255.0 blue:237.0/255.0 alpha:1.0];
+		[self.tableView addSubview:refreshFooterView];
+		self.tableView.showsVerticalScrollIndicator = YES;
+		[refreshFooterView release];
+    }
 }
 
 
@@ -102,7 +116,7 @@ - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
 
 // Customize the number of rows in the table view.
 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
-    return 0;
+    return _sampleData.count;
 }
 
 
@@ -117,7 +131,7 @@ - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(N
     }
 
 	// Configure the cell.
-
+    cell.textLabel.text = [_sampleData objectAtIndex:indexPath.row];
     return cell;
 }
 
@@ -146,28 +160,23 @@ - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath
 */
 
 
-/*
-// Override to support conditional editing of the table view.
 - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
-    // Return NO if you do not want the specified item to be editable.
     return YES;
 }
-*/
 
 
-/*
-// Override to support editing the table view.
 - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
 
     if (editingStyle == UITableViewCellEditingStyleDelete) {
         // Delete the row from the data source.
+        [_sampleData removeObjectAtIndex:indexPath.row];
         [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
+        [self repositionRefreshHeaderView];
     }   
-    else if (editingStyle == UITableViewCellEditingStyleInsert) {
+    //else if (editingStyle == UITableViewCellEditingStyleInsert) {
         // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
-    }   
+    //}   
 }
-*/
 
 
 /*
@@ -194,19 +203,36 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView{
 		} else if (refreshHeaderView.state == EGOOPullRefreshNormal && scrollView.contentOffset.y < -65.0f && !_reloading) {
 			[refreshHeaderView setState:EGOOPullRefreshPulling];
 		}
+
+        float endOfTable = [self endOfTableView:scrollView];
+        if (refreshFooterView.state == EGOOPullRefreshPulling && endOfTable < 0.0f && endOfTable > -65.0f && !_reloading) {
+			[refreshFooterView setState:EGOOPullRefreshNormal];
+		} else if (refreshFooterView.state == EGOOPullRefreshNormal && endOfTable < -65.0f && !_reloading) {
+			[refreshFooterView setState:EGOOPullRefreshPulling];
+		}
 	}
 }
 
 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
 
 	if (scrollView.contentOffset.y <= - 65.0f && !_reloading) {
-			_reloading = YES;
-			[self reloadTableViewDataSource];
-			[refreshHeaderView setState:EGOOPullRefreshLoading];
-			[UIView beginAnimations:nil context:NULL];
-			[UIView setAnimationDuration:0.2];
-			self.tableView.contentInset = UIEdgeInsetsMake(60.0f, 0.0f, 0.0f, 0.0f);
-			[UIView commitAnimations];
+        _reloading = YES;
+        [self reloadTableViewDataSource];
+        [refreshHeaderView setState:EGOOPullRefreshLoading];
+        [UIView beginAnimations:nil context:NULL];
+        [UIView setAnimationDuration:0.2];
+        self.tableView.contentInset = UIEdgeInsetsMake(60.0f, 0.0f, 0.0f, 0.0f);
+        [UIView commitAnimations];
+	}
+
+    if ([self endOfTableView:scrollView] <= -65.0f && !_reloading) {
+        _reloading = YES;
+        [self reloadTableViewDataSource];
+        [refreshFooterView setState:EGOOPullRefreshLoading];
+        [UIView beginAnimations:nil context:NULL];
+        [UIView setAnimationDuration:0.2];
+        self.tableView.contentInset = UIEdgeInsetsMake(0.0f, 0.0f, 60.0f, 0.0f);
+        [UIView commitAnimations];
 	}
 }
 
@@ -219,15 +245,37 @@ - (void)dataSourceDidFinishLoadingNewData{
 	[self.tableView setContentInset:UIEdgeInsetsMake(0.0f, 0.0f, 0.0f, 0.0f)];
 	[UIView commitAnimations];
 
-	[refreshHeaderView setState:EGOOPullRefreshNormal];
-	[refreshHeaderView setCurrentDate];  //  should check if data reload was successful 
+    if ([refreshHeaderView state] != EGOOPullRefreshNormal) {
+        [refreshHeaderView setState:EGOOPullRefreshNormal];
+        [refreshHeaderView setCurrentDate];  //  should check if data reload was successful 
+    }
+
+    if ([refreshFooterView state] != EGOOPullRefreshNormal) {
+        [refreshFooterView setState:EGOOPullRefreshNormal];
+        [refreshFooterView setCurrentDate];  //  should check if data reload was successful 
+    }
+}
+
+- (float)tableViewHeight {
+
+    // return height of table view
+    return [self.tableView contentSize].height;
+}
+
+- (void)repositionRefreshHeaderView {
+    refreshFooterView.center = CGPointMake(160.0f, [self tableViewHeight] + 300.0f);
+}
+
+- (float)endOfTableView:(UIScrollView *)scrollView {
+    return [self tableViewHeight] - scrollView.bounds.size.height - scrollView.bounds.origin.y;
 }
 
 #pragma mark -
 #pragma mark Dealloc
 
 - (void)dealloc {
 	refreshHeaderView = nil;
+    [_sampleData release];
     [super dealloc];
 }
 

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

@@ -0,0 +1,35 @@
+//
+//  EGORefreshTableFooterView.h
+//  Demo
+//
+//  Created by Zbigniew Kominek on 3/10/11.
+//  Copyright 2011 Zbigniew Kominek. All rights reserved.
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+//
+
+#import <Foundation/Foundation.h>
+#import "EGORefreshTableHeaderView.h"
+
+
+@interface EGORefreshTableFooterView : EGORefreshTableHeaderView {
+
+}
+
+@end

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

@@ -0,0 +1,48 @@
+//
+//  EGORefreshTableFooterView.m
+//  Demo
+//
+//  Created by Zbigniew Kominek on 3/10/11.
+//  Copyright 2011 Zbigniew Kominek. All rights reserved.
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+//
+
+#import "EGORefreshTableFooterView.h"
+
+
+@implementation EGORefreshTableFooterView
+
+- (void)setup:(CGRect)frame {
+    _lastUpdatedLabelFrame = CGRectMake(0.0f, 10.0f, self.frame.size.width, 20.0f);
+    _statusLabelFrame      = CGRectMake(0.0f, 28.0f, self.frame.size.width, 20.0f);
+    _arrowImageFrame       = CGRectMake(25.0f, 10.0f, 30.0f, 55.0f);
+    _activityViewFrame     = CGRectMake(25.0f, 18.0f, 20.0f, 20.0f);
+
+    _arrowPullingTransform = CATransform3DMakeRotation((M_PI / 180.0f) * -360.0f, 0.0f, 0.0f, 1.0f);
+    _arrowNormalTransform  = CATransform3DMakeRotation((M_PI / 180.0f) *  180.0f, 0.0f, 0.0f, 1.0f);
+
+    _releaseLabelText = NSLocalizedString(@"Release to refresh...", @"Release to refresh status");
+    _pullingLabelText = NSLocalizedString(@"Pull up to refresh...", @"Pull down to refresh status");
+    _loadingLabelText = NSLocalizedString(@"Loading...", @"Loading Status");
+
+    _userDefaultsKey = @"EGORefreshTableFooterView_LastRefresh";
+}
+
+@end

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

@@ -43,11 +43,29 @@ typedef enum{
 
 	EGOPullRefreshState _state;
 
+@protected
+    CGRect _lastUpdatedLabelFrame;
+    CGRect _statusLabelFrame;
+    CGRect _arrowImageFrame;
+    CGRect _activityViewFrame;
+
+    CATransform3D _arrowPullingTransform;
+    CATransform3D _arrowNormalTransform;
+
+    NSString *_releaseLabelText;
+    NSString *_pullingLabelText;
+    NSString *_loadingLabelText;
+
+    NSString *_userDefaultsKey;
 }
 
 @property(nonatomic,assign) EGOPullRefreshState state;
+@property(nonatomic,retain) NSString *releaseLabelText;
+@property(nonatomic,retain) NSString *pullingLabelText;
+@property(nonatomic,retain) NSString *loadingLabelText;
 
 - (void)setCurrentDate;
 - (void)setState:(EGOPullRefreshState)aState;
+- (void)setup:(CGRect)frame;
 
 @end