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在UITableView中识别作用滑动，实现上下翻页的功能

2024-07-06 22:06:23   227人阅读

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;

 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");

}

 


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