iboss-ios/IBOSS/Utils/RefreshTableView/RefreshTableView.m

//
//  RefreshTableView.m
//  MicroVideo
//
//  Created by Hepburn Alex on 12-11-23.
//  Copyright (c) 2012年 wei. All rights reserved.
//

#import "RefreshTableView.h"

@implementation RefreshTableView

@synthesize delegate, mbMoreHidden, mbRefreshHidden, separatorColor, separatorStyle, miBotOffset, contentSize, contentOffset;

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        miBotOffset = 0;
        _mTableView = [[UITableView alloc] initWithFrame:self.bounds];
        _mTableView.autoresizingMask = UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth;
        _mTableView.delegate = self;
        _mTableView.dataSource = self;
        _mTableView.backgroundColor = [UIColor colorWithRed:0.87 green:0.88 blue:0.91 alpha:1.0];
        [self addSubview:_mTableView];
        //  [mTableView release];
        _mTableView.frame=CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height);
        _mLoadMore = [[LoadMoreView alloc] initWithFrame:CGRectMake(10, 0, _mTableView.frame.size.width-20, 32)];
        _mLoadMore.delegate = self;
        _mLoadMore.OnLoadMore = @selector(OnLoadMoreClick);
        _mLoadMore.hidden = YES;
     
        _mTableView.tableFooterView=_mLoadMore;
        //  [mLoadMore release];
        // mLoadMore.backgroundColor = [UIColor redColor];
        
        _mRefreshHeader = [[RefreshTableHeaderView alloc] initWithFrame:CGRectMake(0, -_mTableView.bounds.size.height, _mTableView.frame.size.width, _mTableView.bounds.size.height)];
        [_mTableView addSubview:_mRefreshHeader];
        //  [mRefreshHeader release];
    }
    return self;
}

- (void)setBackgroundColor:(UIColor *)color {
    [super setBackgroundColor:color];
    _mTableView.backgroundColor = color;
}

- (void)setSeparatorColor:(UIColor *)color {
    _mTableView.separatorColor = color;
}

- (UIColor *)separatorColor {
    return _mTableView.separatorColor;
}

- (void)setSeparatorStyle:(UITableViewCellSeparatorStyle)style {
    _mTableView.separatorStyle = style;
}

- (UITableViewCellSeparatorStyle)separatorStyle {
    return _mTableView.separatorStyle;
}

- (CGSize)contentSize {
    return _mTableView.contentSize;
}

- (CGPoint)contentOffset {
    return _mTableView.contentOffset;
}

- (void)setContentOffset:(CGPoint)Offset {
    _mTableView.contentOffset = Offset;
}

- (void)dealloc {
    // [super dealloc];
}

- (void)setMbMoreHidden:(BOOL)bHidden {
    _mLoadMore.hidden = bHidden;
}

- (BOOL)mbMoreHidden {
    return _mLoadMore.hidden;
}

- (void)setMbRefreshHidden:(BOOL)bHidden {
    _mRefreshHeader.hidden = bHidden;
}

- (BOOL)mbRefreshHidden {
    return _mRefreshHeader.hidden;
}

- (void)reloadData {
    [_mTableView reloadData];
    [self.mTableView setContentOffset:CGPointMake(0,0) animated:NO];
    // int iTop = mTableView.contentSize.height;
    //mLoadMore.frame = CGRectMake(10, iTop, mTableView.frame.size.width-20, 32);
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    if (delegate && [delegate respondsToSelector:@selector(numberOfSectionsInTableView:)]) {
        return [delegate numberOfSectionsInTableView:tableView];
    }
    return 0;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    if (delegate && [delegate respondsToSelector:@selector(tableView:numberOfRowsInSection:)]) {
        return [delegate tableView:tableView numberOfRowsInSection:section];
    }
    return 0;
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    
    if (delegate && [delegate respondsToSelector:@selector(tableView:viewForHeaderInSection:)]) {
        return [delegate tableView:tableView viewForHeaderInSection:section];
    }
    return nil;
}

//tableview分区的间隔高度
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    if (delegate && [delegate respondsToSelector:@selector(tableView:heightForHeaderInSection:)]) {
        return [delegate tableView:tableView heightForHeaderInSection:section];
    }
    
    return 0;
}


- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    
    if (delegate && [delegate respondsToSelector:@selector(tableView:heightForRowAtIndexPath:)]) {
        return [delegate tableView:tableView heightForRowAtIndexPath:indexPath];
    }
    return 40;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (delegate && [delegate respondsToSelector:@selector(tableView:cellForRowAtIndexPath:)]) {
        return [delegate tableView:tableView cellForRowAtIndexPath:indexPath];
    }
    return nil;
}

-(CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath{
    if (delegate && [delegate respondsToSelector:@selector(tableView:estimatedHeightForRowAtIndexPath:)]) {
        return [delegate tableView:tableView estimatedHeightForRowAtIndexPath:indexPath];
    }
    return 250;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (delegate && [delegate respondsToSelector:@selector(tableView:didSelectRowAtIndexPath:)]) {
        [delegate tableView:tableView didSelectRowAtIndexPath:indexPath];
    }
}

- (BOOL)CanRefresh {
    if (delegate && [delegate respondsToSelector:@selector(CanRefreshTableView:)]) {
        return [delegate CanRefreshTableView:self];
    }
    return NO;
}

//scrollView滚动时，就调用该方法。任何offset值改变都调用该方法。即滚动过程中，调用多次
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
    if (delegate && [delegate respondsToSelector:@selector(scrollViewDidScroll:)]) {
        [delegate scrollViewDidScroll:scrollView];
        //	if (scrollView.isDragging) {//显示下拉更新
        //
        //		if (mRefreshHeader.state == PullRefreshPulling && scrollView.contentOffset.y > -65.0f && scrollView.contentOffset.y < 0.0f && [self CanRefresh]) {
        //			[mRefreshHeader setState:PullRefreshNormal];
        //		}
        //		else if (mRefreshHeader.state == PullRefreshNormal && scrollView.contentOffset.y < -65.0f && [self CanRefresh]) {//显示松开更新
        //			[mRefreshHeader setState:PullRefreshPulling];
        //		}
        //
        //	}
    }
    
}
// 滑动视图，当手指离开屏幕那一霎那，调用该方法。一次有效滑动，只执行一次。
// decelerate,指代，当我们手指离开那一瞬后，视图是否还将继续向前滚动（一段距离），经过测试，decelerate=YES
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
    if (scrollView.contentOffset.y <= - 65.0f && [self CanRefresh]) {
        [_mRefreshHeader setState:PullRefreshLoading];
        
        //int iBotHeight = mLoadMore.hidden ? miBotOffset : miBotOffset+40;
        int iBotHeight = 0;
        [UIView beginAnimations:nil context:NULL];
        [UIView setAnimationDuration:0.2];
        // mTableView.contentInset = UIEdgeInsetsMake(60.0f, 0.0f, iBotHeight, 0.0f);
        //上边、左边、下边、右边
        _mTableView.contentInset = UIEdgeInsetsMake(60.0f, 0.0f, iBotHeight, 0.0f);
        _mTableView.contentOffset = CGPointMake(0, -60);
        [UIView commitAnimations];
        if (delegate && [delegate respondsToSelector:@selector(ReloadList:)]) {
            return [delegate ReloadList:self];
        }
    }
}
// 滚动视图减速完成，滚动将停止时，调用该方法。一次有效滑动，只执行一次。
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
//    int iOffset = scrollView.contentOffset.y+scrollView.frame.size.height-scrollView.contentSize.height;
   
}

- (void)OnLoadMoreClick {
    if (!_mLoadMore.hidden && [self CanRefresh]) {
        [_mLoadMore StartLoading];
        if (delegate && [delegate respondsToSelector:@selector(LoadMoreList:)]) {
            return [delegate LoadMoreList:self];
        }
    }
}

- (void)FinishLoading {
    int  iBotHeight=0;
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:.3];
    [_mTableView setContentInset:UIEdgeInsetsMake(0.0f, 0.0f, iBotHeight, 0.0f)];
    [UIView commitAnimations];
    
    [_mRefreshHeader setState:PullRefreshNormal];
    [_mRefreshHeader setCurrentDate];
    [_mLoadMore StopLoading];
}

@end