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为UITableView增加左右滑动事件

2013-08-14 13:22 375 查看
UITableView 屏蔽了左右滑动事件.  通过重载的方式可以注入事件touch事件, 供开发者使用..

//
//  TouchTableView.h
//

#import <UIKit/UIKit.h>

@protocol TouchTableViewDelegate <NSObject>
@optional
- (void)tableView:(UITableView *)tableView touchesBegin:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)tableView:(UITableView *)tableView touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)tableView:(UITableView *)tableView touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)tableView:(UITableView *)tableView touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;
@end

@interface TouchTableView : UITableView

@property(nonatomic,retain) id<TouchTableViewDelegate> touchDelegate;

@end

//
//  TouchTableView.m
//

#import "TouchTableView.h"

@implementation TouchTableView

@synthesize touchDelegate = _touchDelegate;

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesBegan:touches withEvent:event];

if ([_touchDelegate conformsToProtocol:@protocol(TouchTableViewDelegate)] &&
[_touchDelegate respondsToSelector:@selector(tableView:touchesBegin:withEvent:)])
{
[_touchDelegate tableView:self touchesBegin:touches withEvent:event];
}
}

- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesCancelled:touches withEvent:event];

if ([_touchDelegate conformsToProtocol:@protocol(TouchTableViewDelegate)] &&
[_touchDelegate respondsToSelector:@selector(tableView:touchesCancelled:withEvent:)])
{
[_touchDelegate tableView:self touchesCancelled:touches withEvent:event];
}
}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesEnded:touches withEvent:event];

if ([_touchDelegate conformsToProtocol:@protocol(TouchTableViewDelegate)] &&
[_touchDelegate respondsToSelector:@selector(tableView:touchesEnded:withEvent:)])
{
[_touchDelegate tableView:self touchesEnded:touches withEvent:event];
}
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesMoved:touches withEvent:event];

if ([_touchDelegate conformsToProtocol:@protocol(TouchTableViewDelegate)] &&
[_touchDelegate respondsToSelector:@selector(tableView:touchesMoved:withEvent:)])
{
[_touchDelegate tableView:self touchesMoved:touches withEvent:event];
}
}

@end


调用方法 :

1. 头文件中加入delegate

@interface MoneyViewCtl : UIViewController<UITableViewDataSource, UITableViewDelegate, TouchTableViewDelegate>
{
IBOutlet TouchTableView *_tableview;
}
@end


2. .m文件中设置好delegate

_tableview.touchDelegate = self;

3. .m文件中实现如下事件
#pragma mark - TouchTableViewDelegate lifecycle
- (void)tableView:(UITableView *)tableView touchesBegin:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"touchesBegin");
}
- (void)tableView:(UITableView *)tableView touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"touchesCancelled");
}

- (void)tableView:(UITableView *)tableView touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"touchesEnded");
}
- (void)tableView:(UITableView *)tableView touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"touchesMoved");
}
剩下的事情就可以自己发挥了

转自:http://www.cppblog.com/Khan/archive/2013/02/27/198100.html
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标签:  UITableView