ios仿EGORefreshTableHeaderView上提下拉翻页插件
在资源中上传了该插件，先介绍其使用方法：
1、在需要使用的viewcontroller.h中，先
#import "EGORefreshTableHeaderView.h"
#import "EGORefreshTableTailView.h"
@interface RefreshTableViewController : UIViewController<EGORefreshTableHeaderDelegate,EGORefreshTableTailDelegate>
{
IBOutlet UITableView *refreshTableView;
IBOutletUINavigationBar *navBar;
EGORefreshTableHeaderView *refreshHeaderView;
EGORefreshTableTailView *refreshTailView;
// Reloading var should really be your tableviews datasource
// Putting it here for demo purposes
BOOL reloading;
BOOL tailReloading;
}
@property (nonatomic,strong)id<RefreshDelegate> refreshDelegate;
@property (nonatomic,retain)NSArray *tableContentArray;
- (void)doneLoadingTableViewData;
- (void)doneTailLoadingTableViewData;
在所需的viewcontroller.m文件中：
@implementation RefreshTableViewController
@synthesize refreshDelegate;
@synthesize tableContentArray;
- (void)viewDidLoad
{
[superviewDidLoad];
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
// [[NSNotificationCenter defaultCenter] addObserver:self
// selector:@selector(changeFrames:)
// name:UIDeviceOrientationDidChangeNotification
// object:nil];
[RefreshUtil setExtraCellLineHidden:refreshTableView]; //去除tableview底部多余线条
[selfrefreshHeadView];
[selfrefreshTailView];
}
- (void) refreshHeadView
{
if (refreshHeaderView ==nil) {
LYEGORefreshTableHeaderView *view = [[LYEGORefreshTableHeaderViewalloc] initWithRefreshFrame:CGRectMake(0.0f,0.0f - refreshTableView.bounds.size.height,self.view.frame.size.width,refreshTableView.bounds.size.height)];
view.delegate =self;
[refreshTableViewaddSubview:view];
refreshHeaderView = view;
}
// update the last update date
[refreshHeaderViewrefreshLastUpdatedDate];
}
- (void) refreshTailView
{
CGFloat y = refreshTableView.contentSize.height;
if (y <self.view.bounds.size.height) {
y = self.view.bounds.size.height;
}
if (refreshTailView ==nil) {
EGORefreshTableTailView *view = [[EGORefreshTableTailViewalloc] initWithRefreshFrame:CGRectMake(0.0f, y,self.view.frame.size.width, y)];
view.delegate =self;
[refreshTableViewaddSubview:view];
refreshTailView = view;
}
else {
refreshTailView.frame =CGRectMake(refreshTailView.frame.origin.x, y, refreshTailView.frame.size.width,refreshTailView.frame.size.height);
}
// update the last update date
[refreshTailViewrefreshTailLastUpdatedDate];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
returntableContentArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier =@"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCellalloc] initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:CellIdentifier];
}
// Configure the cell...
cell.textLabel.text =@"test";
return cell;
}
/*
// 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
[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
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
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
*/
}
#pragma mark -
#pragma mark Data Source Loading / Reloading Methods
- (void)reloadTableViewDataSource
{
// should be calling your tableviews data source model to reload
// put here just for demo
reloading =YES;
if (refreshDelegate !=nil) {
if ([refreshDelegaterespondsToSelector:@selector(refreshWithFinish)]) {
[refreshDelegaterefreshWithFinish];
return;
}
else if ([refreshDelegaterespondsToSelector:@selector(refresh)]) {
[refreshDelegaterefresh];
}
}
[selfperformSelector:@selector(doneLoadingTableViewData)withObject:nilafterDelay:1.0f];
}
- (void)doneLoadingTableViewData
{
// model should call this when its done loading
reloading =NO;
[refreshHeaderViewegoRefreshScrollViewDataSourceDidFinishedLoading:refreshTableView];
if (refreshDelegate !=nil) {
if ([refreshDelegaterespondsToSelector:@selector(reloadHeadView)]) {
[refreshDelegatereloadHeadView];
}
}
}
#pragma mark -
#pragma mark Data Source Loading / Reloading Methods
- (void)reloadTableViewTailDataSource
{
// should be calling your tableviews data source model to reload
// put here just for demo
tailReloading =YES;
if (refreshDelegate !=nil) {
if ([refreshDelegaterespondsToSelector:@selector(refreshTailViewWithFinish)]) {
[refreshDelegaterefreshTailViewWithFinish];
return;
}
else if ([refreshDelegaterespondsToSelector:@selector(refreshTail)]) {
[refreshDelegaterefreshTail];
}
}
[selfperformSelector:@selector(doneTailLoadingTableViewData)withObject:nilafterDelay:1.0f];
}
- (void)doneTailLoadingTableViewData
{
// model should call this when its done loading
tailReloading =NO;
[refreshTailViewegoRefreshScrollViewDataSourceDidFinishedLoading:refreshTableView];
if (refreshDelegate !=nil) {
if ([refreshDelegaterespondsToSelector:@selector(reloadView)]) {
[refreshDelegatereloadView];
}
}
[selfrefreshTailView];
}
#pragma mark -
#pragma mark UIScrollViewDelegate Methods
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
if (!tailReloading) {
[refreshHeaderViewegoRefreshScrollViewDidScroll:scrollView];
}
if (!reloading) {
if (!tailReloading) {
[selfrefreshTailView];
}
[refreshTailViewegoRefreshScrollViewDidScroll:scrollView];
}
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
if (!tailReloading) {
[refreshHeaderViewegoRefreshScrollViewDidEndDragging:scrollView];
}
if (!reloading) {
[refreshTailViewegoRefreshScrollViewDidTailEndDragging:scrollView];
}
}
#pragma mark -
#pragma mark EGORefreshTableHeaderDelegate Methods
- (void)egoRefreshTableHeaderDidTriggerRefresh:(LYEGORefreshTableHeaderView*)view
{
[selfreloadTableViewDataSource];
}
- (BOOL)egoRefreshTableHeaderDataSourceIsLoading:(LYEGORefreshTableHeaderView*)view
{
returnreloading; // should return if data source model is reloading
}
- (NSDate*)egoRefreshTableHeaderDataSourceLastUpdated:(LYEGORefreshTableHeaderView*)view
{
return [NSDatedate]; // should return date data source was last changed
}
#pragma mark -
#pragma mark EGORefreshTableTailDelegate Methods
- (void)egoRefreshTableTailDidTriggerRefresh:(EGORefreshTableTailView*)view
{
[selfreloadTableViewTailDataSource];
}
- (BOOL)egoRefreshTableTailDataSourceIsLoading:(EGORefreshTableTailView*)view
{
returntailReloading;// should return if data source model is reloading
}
- (NSDate*)egoRefreshTableTailDataSourceLastUpdated:(EGORefreshTableTailView*)view
{
return [NSDatedate]; // should return date data source was last changed
}
//
// LYEGORefreshTableHeaderView.h
// Demo
//
// Created by Devin Doty on 10/14/09October14.
// Copyright 2009 enormego. 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 <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>
#define TEXT_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
typedef enum{
EGOOPullRefreshPulling = 0,
EGOOPullRefreshNormal,
EGOOPullRefreshLoading,
} EGOPullRefreshState;
@protocol EGORefreshTableHeaderDelegate;
@interface LYEGORefreshTableHeaderView : UIView {
id _delegate;
EGOPullRefreshState _state;
UILabel *_lastUpdatedLabel;
UILabel *_statusLabel;
CALayer *_arrowImage;
UIActivityIndicatorView *_activityView;
}
@property(nonatomic,assign) id <EGORefreshTableHeaderDelegate> delegate;
- (id)initWithRefreshFrame:(CGRect)frame;
- (id)initWithFrame:(CGRect)frame arrowImageName:(NSString *)arrow textColor:(UIColor *)textColor;
- (void)refreshLastUpdatedDate;
- (void)egoRefreshScrollViewDidScroll:(UIScrollView *)scrollView;
- (void)egoRefreshScrollViewDidEndDragging:(UIScrollView *)scrollView;
- (void)egoRefreshScrollViewDataSourceDidFinishedLoading:(UIScrollView *)scrollView;
- (void)setState:(EGOPullRefreshState)aState;
@end
@protocol EGORefreshTableHeaderDelegate<NSObject>
- (void)egoRefreshTableHeaderDidTriggerRefresh:(LYEGORefreshTableHeaderView*)view;
- (BOOL)egoRefreshTableHeaderDataSourceIsLoading:(LYEGORefreshTableHeaderView*)view;
@optional
- (NSDate*)egoRefreshTableHeaderDataSourceLastUpdated:(LYEGORefreshTableHeaderView*)view;
@end
EGORefreshTableHeaderView.m文件如下：
//
// LYEGORefreshTableHeaderView.m
// Demo
//
// Created by Devin Doty on 10/14/09October14.
// Copyright 2009 enormego. 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 "EGORefreshTableHeaderView.h"
//
//#define TEXT_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
//@interface LYEGORefreshTableHeaderView (Private)
//- (void)setState:(EGOPullRefreshState)aState;
//@end
@implementation LYEGORefreshTableHeaderView
@synthesize delegate=_delegate;
- (id)initWithFrame:(CGRect)frame arrowImageName:(NSString *)arrow textColor:(UIColor *)textColor {
if((self = [super initWithFrame:frame])) {
self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleBottomMargin;
self.backgroundColor = [UIColor colorWithRed:226.0/255.0 green:231.0/255.0 blue:237.0/255.0 alpha:1.0];
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 = textColor;
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];
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 = textColor;
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 layer];
layer.frame = CGRectMake(25.0f, frame.size.height - 65.0f, 30.0f, 55.0f);
layer.contentsGravity = kCAGravityResizeAspect;
layer.contents = (id)[UIImage imageNamed:arrow].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;
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];
[self setState:EGOOPullRefreshNormal];
}
return self;
}
- (id)initWithRefreshFrame:(CGRect)frame {
return [self initWithFrame:frame arrowImageName:@"blueArrow.png" textColor:TEXT_COLOR];
}
#pragma mark -
#pragma mark Setters
- (void)refreshLastUpdatedDate {
if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDataSourceLastUpdated:)]) {
NSDate *date = [_delegate egoRefreshTableHeaderDataSourceLastUpdated:self];
[NSDateFormatter setDefaultFormatterBehavior:NSDateFormatterBehaviorDefault];
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateStyle:NSDateFormatterShortStyle];
[dateFormatter setTimeStyle:NSDateFormatterShortStyle];
_lastUpdatedLabel.text = [NSString stringWithFormat:@"Last Updated: %@", [dateFormatter stringFromDate:date]];
[[NSUserDefaults standardUserDefaults] setObject:_lastUpdatedLabel.text forKey:@"EGORefreshTableView_LastRefresh"];
[[NSUserDefaults standardUserDefaults] synchronize];
} else {
_lastUpdatedLabel.text = nil;
}
}
- (void)setState:(EGOPullRefreshState)aState{
switch (aState) {
case EGOOPullRefreshPulling:
_statusLabel.text = NSLocalizedString(@"Release to refresh...", @"Release to refresh status");
[CATransaction begin];
[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:FLIP_ANIMATION_DURATION];
_arrowImage.transform = CATransform3DIdentity;
[CATransaction commit];
}
_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;
[CATransaction commit];
[self refreshLastUpdatedDate];
break;
case EGOOPullRefreshLoading:
_statusLabel.text = NSLocalizedString(@"Loading...", @"Loading Status");
[_activityView startAnimating];
[CATransaction begin];
[CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions];
_arrowImage.hidden = YES;
[CATransaction commit];
break;
default:
break;
}
_state = aState;
}
#pragma mark -
#pragma mark ScrollView Methods
- (void)egoRefreshScrollViewDidScroll:(UIScrollView *)scrollView {
if (_state == EGOOPullRefreshLoading) {
CGFloat offset = MAX(scrollView.contentOffset.y * -1, 0);
offset = MIN(offset, 60);
scrollView.contentInset = UIEdgeInsetsMake(offset, 0.0f, 0.0f, 0.0f);
} else if (scrollView.isDragging) {
BOOL _loading = NO;
if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDataSourceIsLoading:)]) {
_loading = [_delegate egoRefreshTableHeaderDataSourceIsLoading:self];
}
if (_state == EGOOPullRefreshPulling && scrollView.contentOffset.y > -65.0f && scrollView.contentOffset.y < 0.0f && !_loading) {
[self setState:EGOOPullRefreshNormal];
} else if (_state == EGOOPullRefreshNormal && scrollView.contentOffset.y < -65.0f && !_loading) {
[self setState:EGOOPullRefreshPulling];
}
if (scrollView.contentInset.top != 0) {
scrollView.contentInset = UIEdgeInsetsZero;
}
}
}
- (void)egoRefreshScrollViewDidEndDragging:(UIScrollView *)scrollView {
BOOL _loading = NO;
if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDataSourceIsLoading:)]) {
_loading = [_delegate egoRefreshTableHeaderDataSourceIsLoading:self];
}
if (scrollView.contentOffset.y <= - 65.0f && !_loading) {
[self setState:EGOOPullRefreshLoading];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
scrollView.contentInset = UIEdgeInsetsMake(60.0f, 0.0f, 0.0f, 0.0f);
[UIView commitAnimations];
if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDidTriggerRefresh:)]) {
[_delegate egoRefreshTableHeaderDidTriggerRefresh:self];
}
}
}
- (void)egoRefreshScrollViewDataSourceDidFinishedLoading:(UIScrollView *)scrollView {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.3];
[scrollView setContentInset:UIEdgeInsetsMake(0.0f, 0.0f, 0.0f, 0.0f)];
[UIView commitAnimations];
[self setState:EGOOPullRefreshNormal];
}
#pragma mark -
#pragma mark Dealloc
- (void)dealloc {
_delegate=nil;
_activityView = nil;
_statusLabel = nil;
_arrowImage = nil;
_lastUpdatedLabel = nil;
[super dealloc];
}
@end
//
// EGORefreshTableTailView.h
// testPullAndPush
//
// Created by liuyun on 9/4/13.
// Copyright (c) 2013 liuyun. All rights reserved.
//
#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>
//#import "LYEGORefreshTableHeaderView.h"
typedef enum {
EGOOTailPullRefreshPulling = 0,
EGOOTailPullRefreshNormal,
EGOOTailPullRefreshLoading,
} EGOTailPullRefreshState;
@protocol EGORefreshTableTailDelegate;
@interface EGORefreshTableTailView : UIView
{
__unsafe_unretained id delegate;
EGOTailPullRefreshState _state;
UILabel *_lastUpdatedLabel;
UILabel *_statusLabel;
CALayer *_arrowImage;
UIActivityIndicatorView *_activityView;
UIScrollView *_scrollView;
}
@property(nonatomic,unsafe_unretained) id<EGORefreshTableTailDelegate> delegate;
- (id)initWithRefreshFrame:(CGRect)frame;
- (id)initWithFrame:(CGRect)frame arrowImageName:(NSString *)arrow textColor:(UIColor *)textColor;
- (void)refreshTailLastUpdatedDate;
- (void)egoRefreshScrollViewDidScroll:(UIScrollView *)scrollView;
- (void)egoRefreshScrollViewDidTailEndDragging:(UIScrollView *)scrollView;
- (void)egoRefreshScrollViewDataSourceDidFinishedLoading:(UIScrollView *)scrollView;
- (void)setState:(EGOTailPullRefreshState)aState;
@end
@protocol EGORefreshTableTailDelegate<NSObject>
- (void)egoRefreshTableTailDidTriggerRefresh:(EGORefreshTableTailView*)view;
- (BOOL)egoRefreshTableTailDataSourceIsLoading:(EGORefreshTableTailView*)view;
@optional
- (NSDate*)egoRefreshTableTailDataSourceLastUpdated:(EGORefreshTableTailView*)view;
@end
EGORefreshTableTailView.m文件如下：
//
// EGORefreshTableTailView.m
// testPullAndPush
//
// Created by liuyun on 9/4/13.
// Copyright (c) 2013 liuyun. All rights reserved.
//
#import "EGORefreshTableTailView.h"
#define RefreshViewHight 65.0f
#define TEXT_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 EGORefreshTableTailView
@synthesize delegate;
- (id)initWithFrame:(CGRect)frame arrowImageName:(NSString *)arrow textColor:(UIColor *)textColor {
if((self = [super initWithFrame:frame])) {
self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
self.backgroundColor = [UIColor colorWithRed:226.0/255.0 green:231.0/255.0 blue:237.0/255.0 alpha:1.0];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, RefreshViewHight - 30.0f, self.frame.size.width, 20.0f)];
label.autoresizingMask = UIViewAutoresizingFlexibleWidth;
label.font = [UIFont systemFontOfSize:12.0f];
label.textColor = textColor;
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 = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, RefreshViewHight - 48.0f, self.frame.size.width, 20.0f)];
label.autoresizingMask = UIViewAutoresizingFlexibleWidth;
label.font = [UIFont boldSystemFontOfSize:13.0f];
label.textColor = textColor;
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;
CALayer *layer = [CALayer layer];
layer.frame = CGRectMake(25.0f, 0.0f, 30.0f, 55.0f);
layer.contentsGravity = kCAGravityResizeAspect;
layer.contents = (id)[UIImage imageNamed:arrow].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;
UIActivityIndicatorView *view = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
view.frame = CGRectMake(25.0f, RefreshViewHight - 38.0f, 20.0f, 20.0f);
[self addSubview:view];
_activityView = view;
[self setState:EGOOTailPullRefreshNormal];
}
return self;
}
- (id)initWithRefreshFrame:(CGRect)frame {
return [self initWithFrame:frame arrowImageName:@"blueArrow.png" textColor:TEXT_COLOR];
}
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
}
*/
#pragma mark -
#pragma mark ScrollView Methods
- (void)egoRefreshScrollViewDidScroll:(UIScrollView *)scrollView {
_scrollView = scrollView;
CGFloat height = RefreshViewHight;
DLog(@"egoRefreshScrollViewDidScroll [scrollView contentSize].height = %f, scrollView.frame.size.height = %f, self.delegate = %@", [scrollView contentSize].height, scrollView.frame.size.height, self.delegate);
if ([scrollView contentSize].height <= scrollView.frame.size.height) {
[scrollView setContentSize:CGSizeMake(scrollView.frame.size.width, scrollView.frame.size.height)];
height += 44;
}
DLog(@"egoRefreshScrollViewDidScroll at last height = %f", height);
if (_state == EGOOTailPullRefreshLoading) {
[scrollView setContentInset:UIEdgeInsetsMake(0.0f, 0.0f, height, 0.0f)];
} else if (scrollView.isDragging) {
DLog(@"isDragging begin");
BOOL _loading = NO;
if ([self.delegate respondsToSelector:@selector(egoRefreshTableTailDataSourceIsLoading:)]) {
_loading = [self.delegate egoRefreshTableTailDataSourceIsLoading:self];
}
DLog(@"isDragging _delegate after");
if (_state == EGOOTailPullRefreshPulling && (scrollView.contentOffset.y + scrollView.frame.size.height) < scrollView.contentSize.height + RefreshViewHight && scrollView.contentOffset.y > 0.0f && !_loading) {
DLog(@"isDragging set state normal");
[self setState:EGOOTailPullRefreshNormal];
DLog(@"isDragging set state normal end");
} else if (_state == EGOOTailPullRefreshNormal && (scrollView.contentOffset.y + scrollView.frame.size.height) > scrollView.contentSize.height + RefreshViewHight && !_loading) {
DLog(@"isDragging set state pulling");
[self setState:EGOOTailPullRefreshPulling];
DLog(@"isDragging set state pulling end");
}
DLog(@"isDragging _delegate at end");
if (scrollView.contentInset.bottom != 0) {
scrollView.contentInset = UIEdgeInsetsZero;
}
DLog(@"isDragging at end");
}
}
- (void)egoRefreshScrollViewDidTailEndDragging:(UIScrollView *)scrollView {
_scrollView = scrollView;
BOOL _loading = NO;
if ([self.delegate respondsToSelector:@selector(egoRefreshTableTailDataSourceIsLoading:)]) {
_loading = [self.delegate egoRefreshTableTailDataSourceIsLoading:self];
}
CGFloat height = RefreshViewHight;
DLog(@"egoRefreshScrollViewDidTailEndDragging [scrollView contentSize].height = %f, scrollView.frame.size.height = %f", [scrollView contentSize].height, scrollView.frame.size.height);
if ([scrollView contentSize].height <= scrollView.frame.size.height) {
height += 44;
}
DLog(@"egoRefreshScrollViewDidTailEndDragging at last height = %f", height);
if ((scrollView.contentOffset.y + scrollView.frame.size.height) > (scrollView.contentSize.height + RefreshViewHight) && !_loading) {
[self setState:EGOOTailPullRefreshLoading];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.0];
[scrollView setContentInset:UIEdgeInsetsMake(0.0f, 0.0f, height, 0.0f)];
[UIView commitAnimations];
if ([self.delegate respondsToSelector:@selector(egoRefreshTableTailDidTriggerRefresh:)]) {
[self.delegate egoRefreshTableTailDidTriggerRefresh:self];
}
}
}
- (void)egoRefreshScrollViewDataSourceDidFinishedLoading:(UIScrollView *)scrollView {
_scrollView = scrollView;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.3];
[scrollView setContentInset:UIEdgeInsetsMake(0.0f, 0.0f, 0.0f, 0.0f)];
[UIView commitAnimations];
[self setState:EGOOTailPullRefreshNormal];
}
#pragma mark -
#pragma mark Setters
- (void)refreshTailLastUpdatedDate {
if ([self.delegate respondsToSelector:@selector(egoRefreshTableHeaderDataSourceLastUpdated:)]) {
NSDate *date = [self.delegate egoRefreshTableTailDataSourceLastUpdated:self];
[NSDateFormatter setDefaultFormatterBehavior:NSDateFormatterBehaviorDefault];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateStyle:NSDateFormatterShortStyle];
[dateFormatter setTimeStyle:NSDateFormatterShortStyle];
_lastUpdatedLabel.text = [NSString stringWithFormat:@"Last Updated: %@", [dateFormatter stringFromDate:date]];
[[NSUserDefaults standardUserDefaults] setObject:_lastUpdatedLabel.text forKey:@"EGORefreshTableView_LastRefresh"];
[[NSUserDefaults standardUserDefaults] synchronize];
} else {
_lastUpdatedLabel.text = nil;
}
}
- (void)setState:(EGOTailPullRefreshState)aState
{
switch (aState) {
case EGOOTailPullRefreshPulling:
_statusLabel.text = NSLocalizedString(@"Release to refresh...", @"Release to refresh status");
[CATransaction begin];
[CATransaction setAnimationDuration:FLIP_ANIMATION_DURATION];
_arrowImage.transform = CATransform3DMakeRotation((M_PI / 180.0) * 180.0f, 0.0f, 0.0f, 1.0f);
[CATransaction commit];
break;
case EGOOTailPullRefreshNormal:
if (_state == EGOOTailPullRefreshPulling) {
[CATransaction begin];
[CATransaction setAnimationDuration:FLIP_ANIMATION_DURATION];
_arrowImage.transform = CATransform3DIdentity;
[CATransaction commit];
}
_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;
[CATransaction commit];
[self refreshTailLastUpdatedDate];
break;
case EGOOTailPullRefreshLoading:
_statusLabel.text = NSLocalizedString(@"Loading...", @"Loading Status");
[_activityView startAnimating];
[CATransaction begin];
[CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions];
_arrowImage.hidden = YES;
[CATransaction commit];
break;
default:
break;
}
_state = aState;
}
@end