今天愚人节,小伙们,愚人节快乐!
实现一个小功能,滑动菜单,显示隐藏的功能菜单, 先上图:
images/loading.gif' data-original="http://images2015.cnblogs.com/blog/454511/201604/454511-20160401231235566-2079722106.gif" />
这里尝试用了下使用三个方式来实现了这个功能:
1、使用自定义UITableViewCell + UISwipeGestureRecognizer + 代理 实现;
2、使用自定义UITableViewCell + UIPanGestureRecognizer + 代理 实现;
3、使用自定义UITableViewCell + UISwipeGestureRecognizer + block 实现。
注意点: 使用UIPanGestureRecognizer手势实现左滑的时候,由于拖拽手势的方向随意性,导致与UITableViewController的下拉刷新手势冲突了!
感觉还是用UISwipeGestureRecognizer清扫手势实现好点!
部分代码:
1、使用UISwipeGestureRecognizer + Delegate
自定义UITableViewCell部分代码:
1 // 2 // TanTableViewCell.h 3 // Tan_SwipeTableViewCell 4 // 5 // Created by PX_Mac on 16/3/25. 6 // Copyright © 2016年 PX_Mac. All rights reserved. 7 // 8 9 #import <UIKit/UIKit.h>10 @class MemberModel;11 @class TanTableViewCell;12 13 @protocol TanTableViewCellDelegate <NSObject>14 15 @optional16 - (void)deleteMember: (TanTableViewCell *)cell; //协议方法:删除会员17 - (void)closeOtherCellLeftSwipe; //关闭其他单元格的左滑18 19 @end20 21 @interface TanTableViewCell : UITableViewCell22 23 //静态构造方法24 + (instancetype)cellWithTableView: (UITableView *)tableView;25 26 @property (nonatomic, strong) MemberModel *model; //模型属性27 @property (nonatomic, weak) id<TanTableViewCellDelegate> delegate; //代理28 29 - (void)setData: (MemberModel *)model; //设置要显示的数据30 - (void)closeSwipe; //关闭滑动,恢复原样(用于在滑动当前单元格时,把其他已经左滑的单元格关闭)31 32 @end
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@implementation TanTableViewCell+ (instancetype)cellWithTableView:(UITableView *)tableView{ static NSString *reuseIdentity = @"tanCell"; TanTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseIdentity]; if (cell == nil){ cell = [[TanTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentity]; } return cell;}- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{ if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]){ [self initSubControls]; //初始化子控件 } return self;}//初始化子控件- (void)initSubControls{/*....... *///3、给容器containerView绑定左右滑动清扫手势 UISwipeGestureRecognizer *leftSwipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipe:)]; leftSwipe.direction = UISwipeGestureRecognizerDirectionLeft; //设置向左清扫 [self.containerView addGestureRecognizer:leftSwipe]; UISwipeGestureRecognizer *rightSwipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipe:)]; rightSwipe.direction = UISwipeGestureRecognizerDirectionRight;//设置向右清扫 [self.containerView addGestureRecognizer:rightSwipe]; self.selectionStyle = UITableViewCellSelectionStyleNone; //设置单元格选中样式 [self.contentView bringSubviewToFront:self.containerView]; //设置containerView显示在最上层}//左滑动和右滑动手势- (void)swipe: (UISwipeGestureRecognizer *)sender{ if (sender.direction == UISwipeGestureRecognizerDirectionLeft){ if (self.isOpenLeft) return; //已经打开左滑,不再执行 //开始左滑: 先调用代理关闭其他cell的左滑 if ([self.delegate respondsToSelector:@selector(closeOtherCellLeftSwipe)]) [self.delegate closeOtherCellLeftSwipe]; [UIView animateWithDuration:0.5 animations:^{ sender.view.center = CGPointMake(0, CELLHEIGHT * 0.5); }]; self.isOpenLeft = YES; } else if (sender.direction == UISwipeGestureRecognizerDirectionRight){ [self closeSwipe]; //关闭左滑 }}//关闭左滑,恢复原状- (void)closeSwipe{ if (!self.isOpenLeft) return; //还未打开左滑,不需要执行右滑 [UIView animateWithDuration:0.5 animations:^{ self.containerView.center = CGPointMake(SCREENWIDTH * 0.5, CELLHEIGHT * 0.5); }]; self.isOpenLeft = NO;}//.....@end
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控制器部分代码:
#pragma mark - UITableViewDataSource- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return self.dataArr.count;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ TanTableViewCell *cell = [TanTableViewCell cellWithTableView:tableView]; cell.delegate = self; MemberModel *model = [self.dataArr objectAtIndex:indexPath.row]; [cell setData:model]; return cell;}#pragma mark - cell代理方法//删除单元格- (void)deleteMember:(TanTableViewCell *)cell{ NSIndexPath *path = [self.tableView indexPathForCell:cell]; //获取cell所在位置 //删除数组中数据 [self.dataArr removeObjectAtIndex:path.row]; //删除单元格 [self.tableView deleteRowsAtIndexPaths:@[path] withRowAnimation:UITableViewRowAnimationLeft];}//关闭其他cell的左滑- (void)closeOtherCellLeftSwipe{ //循环显示的cell for (TanTableViewCell *item in self.tableView.visibleCells) { [item closeSwipe]; }}
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2、UIPanGestureRecognizer + 代理
自定义UITableViewCell部分代码:
1 //初始化子控件 2 - (void)initSubControls{ 3 /* ...... */ 4 5 //3、给容器containerView绑定拖动手势 6 UIPanGestureRecognizer *panGes = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(pan:)]; 7 [self.containerView addGestureRecognizer:panGes]; 8 self.panGes = panGes; 9 10 self.selectionStyle = UITableViewCellSelectionStyleNone; //设置单元格选中样式11 [self.contentView bringSubviewToFront:self.containerView]; //设置containerView显示在最上层12 }13 14 15 //拖动手势(拖拽手势和UITableView的下拉刷新手势有冲突,造成下拉刷新不能使用)16 - (void)pan: (UIPanGestureRecognizer *)sender17 {18 //动画结束时修正位置19 if (sender.state == UIGestureRecognizerStateEnded){20 21 //关闭其他cell的左拖拽22 if ([self.delegate respondsToSelector:@selector(closeOtherCellLeftPan:)])23 [self.delegate closeOtherCellLeftPan: self];24 25 if (sender.view.frame.origin.x < -SCREENWIDTH * 0.25){26 sender.view.transform = CGAffineTransformMakeTranslation(-SCREENWIDTH * 0.5, 0);27 [sender setTranslation:CGPointZero inView:sender.view]; //必须归028 }29 else{30 [self closeLeftPan];31 }32 }33 34 CGPoint point = [sender translationInView:self.contentView];35 36 CGFloat tx = sender.view.transform.tx;37 38 if (tx < - SCREENWIDTH * 0.5 || tx > 0) return;39 40 //形变41 sender.view.transform = CGAffineTransformTranslate(sender.view.transform, point.x, 0);42 [sender setTranslation:CGPointZero inView:sender.view]; //必须归043 }44 45 //关闭左拖拽46 - (void)closeLeftPan{47 self.panGes.view.transform = CGAffineTransformMakeTranslation(0, 0);48 [self.panGes setTranslation:CGPointZero inView:self.panGes.view]; //必须归049 }
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3、UISwipeGestureRecognizer + block
自定义UITableViewCell部分代码:
1 // 2 // TanTableViewCell.h 3 // Tan_SwipeTableViewCell 4 // 5 // Created by PX_Mac on 16/3/25. 6 // Copyright © 2016年 PX_Mac. All rights reserved. 7 // 8 9 #import <UIKit/UIKit.h>10 @class MemberModel;11 12 @interface TanTableViewCell : UITableViewCell13 14 //静态构造方法15 + (instancetype)cellWithTableView: (UITableView *)tableView;16 17 @property (nonatomic, strong) MemberModel *model; //模型属性18 - (void)setData: (MemberModel *)model; //设置要显示的数据19 20 @property (nonatomic, copy) void (^deleteMember)(); //删除会员block回调方法21 @property (nonatomic, copy) void (^closeOtherCellSwipe)(); //关闭其他cell的左滑22 23 - (void)closeLeftSwipe; //关闭左滑24 25 @end
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1 //左滑动和右滑动手势 2 - (void)swipe: (UISwipeGestureRecognizer *)sender 3 { 4 if (sender.direction == UISwipeGestureRecognizerDirectionLeft){ 5 if (self.isOpenLeft) return; //已经打开左滑,不再执行 6 7 //开始左滑: 先调用block关闭其他可能左滑的cell 8 if (self.closeOtherCellSwipe) 9 self.closeOtherCellSwipe();10 11 [UIView animateWithDuration:0.5 animations:^{12 sender.view.center = CGPointMake(0, CELLHEIGHT * 0.5);13 }];14 self.isOpenLeft = YES;15 }16 else if (sender.direction == UISwipeGestureRecognizerDirectionRight){17 [self closeLeftSwipe]; //关闭左滑18 }19 }20 21 //关闭左滑,恢复原状22 - (void)closeLeftSwipe{23 if (!self.isOpenLeft) return; //还未打开左滑,不需要执行右滑24 25 [UIView animateWithDuration:0.5 animations:^{26 self.containerView.center = CGPointMake(SCREENWIDTH * 0.5, CELLHEIGHT * 0.5);27 }];28 self.isOpenLeft = NO;29 }
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控制器部分代码:
1 #pragma mark - 代理方法 2 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ 3 return self.dataArr.count; 4 } 5 6 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 7 TanTableViewCell *cell = [TanTableViewCell cellWithTableView:tableView]; 8 9 MemberModel *model = [self.dataArr objectAtIndex:indexPath.row];10 [cell setData:model]; //设置数据11 12 __weak typeof(self) tempSelf = self;13 __weak typeof(cell) tempCell = cell;14 15 //设置删除cell回调block16 cell.deleteMember = ^{17 NSIndexPath *tempIndex = [tempSelf.tablView indexPathForCell:tempCell];18 [tempSelf.dataArr removeObject:tempCell.model];19 [tempSelf.tablView deleteRowsAtIndexPaths:@[tempIndex] withRowAnimation:UITableViewRowAnimationLeft];20 };21 22 //设置当cell左滑时,关闭其他cell的左滑23 cell.closeOtherCellSwipe = ^{24 for (TanTableViewCell *item in tempSelf.tablView.visibleCells) {25 if (item != tempCell) [item closeLeftSwipe];26 }27 };28 29 return cell;30 }
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DEMO下载:
github地址:https://github.com/xiaotanit/Tan_UITableViewCellLeftSwipe
csdn地址:http://download.csdn.net/detail/tandaxia/9479428
原文链接:http://www.cnblogs.com/tandaxia/p/5346659.html
原标题:自定义UITableViewCell实现左滑动多菜单功能LeftSwipe
关键词:ip