首页 > 代码库 > UITableView中识别左右滑动,实现上下翻页的功能
UITableView中识别左右滑动,实现上下翻页的功能
目前有三种方案:
1.
UIScrollView + UITableView。
实现方法,在UIScrollView中,加入UITableView即可
设置UIScrollView的代理和方法
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{ int currentPostion = scrollView.contentOffset.x; if (currentPostion - 0 > 50) { NSLog(@"Scroll right now "); } else if (0 - currentPostion > 50) { NSLog(@"Scroll left now"); } }
2.利用UISwipeGestureRecognizer
-(void)viewDidLoad{ UISwipeGestureRecognizer *recognizer; recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)]; [[self view] addGestureRecognizer:recognizer]; recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)]; [[self view] addGestureRecognizer:recognizer]; recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)]; [[self view] addGestureRecognizer:recognizer]; recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)]; [[self view] addGestureRecognizer:recognizer]; } -(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer{ if(recognizer.direction==UISwipeGestureRecognizerDirectionDown) { NSLog(@"swipe down"); //执行程序 } if(recognizer.direction==UISwipeGestureRecognizerDirectionUp) { NSLog(@"swipe up"); //执行程序 } if(recognizer.direction==UISwipeGestureRecognizerDirectionLeft) { NSLog(@"swipe left"); //执行程序 } if(recognizer.direction==UISwipeGestureRecognizerDirectionRight) { NSLog(@"swipe right"); //执行程序 } }
3
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..
#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
#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, SDWebDataDownloaderDelegate, EGORefreshTableHeaderDelegate, TouchTableViewDelegate>{ IBOutlet UISegmentedControl *_sigTime; IBOutlet TouchTableView *_tableview; } @end
2. .m文件中设置好delegate
_tableview.touchDelegate = self;
#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"); }
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