iOS自定义UITableView实现不同系统下的左滑删除功能详解

//使用系统默认的删除按钮
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
 if (editingStyle == UITableViewCellEditingStyleDelete){

 }
}
//自定义系统默认的删除按钮文字
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath {
 return @"自定义按钮”;
}

//自定义多个左滑菜单选项
- (NSArray<UITableViewRowAction *> *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
 UITableViewRowAction *deleteAction;
 deleteAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"删除" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath) {
 [tableView setEditing:NO animated:YES];//退出编辑模式，隐藏左滑菜单
 }];
 if (indexPath.row == 1) {//在不同的cell上添加不同的按钮
 UITableViewRowAction *shareAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"分享" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath) {
  [tableView setEditing:NO animated:YES];//退出编辑模式，隐藏左滑菜单
 }];
 shareAction.backgroundColor = [UIColor blueColor];
 return @[deleteAction,shareAction];
 }
 return @[deleteAction];
}

@interface UITableViewRowAction : NSObject <NSCopying>

+ (instancetype)rowActionWithStyle:(UITableViewRowActionStyle)style title:(nullable NSString *)title handler:(void (^)(UITableViewRowAction *action, NSIndexPath *indexPath))handler;

@property (nonatomic, readonly) UITableViewRowActionStyle style;
@property (nonatomic, copy, nullable) NSString *title;
@property (nonatomic, copy, nullable) UIColor *backgroundColor; // default background color is dependent on style
@property (nonatomic, copy, nullable) UIVisualEffect* backgroundEffect;

@end

typedef NS_ENUM(NSInteger, UITableViewRowActionStyle) {
 UITableViewRowActionStyleDefault = 0,//红底白字
 UITableViewRowActionStyleDestructive = UITableViewRowActionStyleDefault,
 UITableViewRowActionStyleNormal//灰底白字
} NS_ENUM_AVAILABLE_IOS(8_0) __TVOS_PROHIBITED;

- (void)layoutSubviews {
 /**自定义设置iOS8-10系统下的左滑删除按钮大小*/
 for (UIView * subView in self.subviews) {
 if ([subView isKindOfClass:NSClassFromString(@"UITableViewCellDeleteConfirmationView")]) {
  subView.backgroundColor = [UIColor clearColor];//去掉默认红色背景
  //设置按钮frame
  CGRect cRect = subView.frame;
  cRect.origin.y = self.contentView.frame.origin.y + 10;
  cRect.size.height = self.contentView.frame.size.height - 20;
  subView.frame = cRect;
  //自定义按钮的文字大小
  if (subView.subviews.count == 1 && self.indexPath.section == 0) {//表示有一个按钮
  UIButton * deleteButton = subView.subviews[0];
  deleteButton.titleLabel.font = [UIFont systemFontOfSize:20];
  }
  //自定义按钮的图片
  if (subView.subviews.count == 1 && self.indexPath.section == 1) {//表示有一个按钮
  UIButton * deleteButton = subView.subviews[0];
  [deleteButton setImage:[UIImage imageNamed:@"login_btn_message"] forState:UIControlStateNormal];
  [deleteButton setTitle:@"" forState:UIControlStateNormal];
  }
  //自定义按钮的文字图片
  if (subView.subviews.count >= 2 && self.indexPath.section == 0) {//表示有两个按钮
  UIButton * deleteButton = subView.subviews[1];
  UIButton * shareButton = subView.subviews[0];
  [deleteButton setTitle:@"" forState:UIControlStateNormal];
  [shareButton setTitle:@"" forState:UIControlStateNormal];
  [self setUpDeleteButton:deleteButton];
  [self setUpShareButton:shareButton];
  }
 }
 }
}

/**自定义设置iOS11系统下的左滑删除按钮大小*/
//开始编辑左滑删除
- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath {
 NSInteger section = indexPath.section;
 if (@available(iOS 11.0, *)) {
  for (UIView * subView in self.customTableView.subviews) {
   if ([subView isKindOfClass:NSClassFromString(@"UISwipeActionPullView")]) {
    subView.backgroundColor = [UIColor clearColor];//如果自定义只有一个按钮就要去掉按钮默认红色背景
    //设置按钮frame
    for (UIView * sonView in subView.subviews) {
     if ([sonView isKindOfClass:NSClassFromString(@"UISwipeActionStandardButton")]) {
      CGRect cRect = sonView.frame;
      cRect.origin.y = sonView.frame.origin.y + 10;
      cRect.size.height = sonView.frame.size.height - 20;
      sonView.frame = cRect;
     }
    }
    //自定义按钮的文字大小
    if (subView.subviews.count == 1 && section == 0) {//表示有一个按钮
     UIButton * deleteButton = subView.subviews[0];
     deleteButton.titleLabel.font = [UIFont systemFontOfSize:20];
    }
    //自定义按钮的图片
    if (subView.subviews.count == 1 && section == 1) {//表示有一个按钮
     UIButton * deleteButton = subView.subviews[0];
     [deleteButton setImage:[UIImage imageNamed:@"login_btn_message"] forState:UIControlStateNormal];;
    }
    //自定义按钮的文字图片
    if (subView.subviews.count >= 2 && section == 0) {//表示有两个按钮
     UIButton * deleteButton = subView.subviews[1];
     UIButton * shareButton = subView.subviews[0];
     [self setUpDeleteButton:deleteButton];
     [self setUpShareButton:shareButton];
    }
   }
  }
 }
}

//结束编辑左滑删除
- (void)tableView:(UITableView *)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath {

}
如果我们想分别设置UITableViewCell是否需要实现左滑功能，可以在下面代理方法中实现：

//判断是否显示左滑删除
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
 return YES;
}