UITableViewCell左滑的时候添加多个按钮的方法（iOS8+）以及UIRefreshControl（iOS6+）的使用。

之前想在cell左滑的时候添加更多的按钮而不是只有‘删除’按钮如下所示，貌似不是一件简单的事。但是现在只要实现几个方法就行了。

代码写的比较垃圾，重在理解这个知识。。

。

具体代码：

//

//  TableViewController.m

//  ios8_tableview(左滑添加按钮)

//

//  Created by mudy on 15/8/21.

//  Copyright (c) 2015年 mudy. All rights reserved.

//

#import "TableViewController.h"

@interface TableViewController ()

@property (nonatomic,strong)NSMutableArray *dataSource;

@end

@implementation TableViewController

- (void)viewDidLoad {

[super viewDidLoad];

self.dataSource = [NSMutableArray array];

self.dataSource = [@[@"mudy1",@"mudy2",@"mudy3",@"mudy4",@"mudy5",@"mudy6"]mutableCopy];

// Uncomment the following line to preserve selection between presentations.

// self.clearsSelectionOnViewWillAppear = NO;

// Uncomment the following line to display an Edit button in the navigation bar for this view controller.

self.navigationItem.rightBarButtonItem = self.editButtonItem;

self.refreshControl = [UIRefreshControl new];

self.refreshControl.tintColor = [UIColor redColor];

[self.refreshControl addTarget:self action:@selector(refreshControl:) forControlEvents:UIControlEventValueChanged];

UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc]

initWithTarget:self action:@selector(longPressGestureRecognized:)];

[self.tableView addGestureRecognizer:longPress];

}

- (IBAction)longPressGestureRecognized:(UILongPressGestureRecognizer *)sender {

UILongPressGestureRecognizer *longPress = (UILongPressGestureRecognizer *)sender;

UIGestureRecognizerState state = longPress.state;

CGPoint location = [longPress locationInView:self.tableView];

NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:location];

static UIView       *snapshot = nil;        ///< A snapshot of the row user is moving.

static NSIndexPath  *sourceIndexPath = nil; ///< Initial index path, where gesture begins.

switch (state) {

case UIGestureRecognizerStateBegan: {

if (indexPath) {

sourceIndexPath = indexPath;

UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];

// Take a snapshot of the selected row using helper method.

snapshot = [self customSnapshotFromView:cell];

// Add the snapshot as subview, centered at cell's center...

__block CGPoint center = cell.center;

snapshot.center = center;

snapshot.alpha = 0.0;

[self.tableView addSubview:snapshot];

[UIView animateWithDuration:0.25 animations:^{

// Offset for gesture location.

center.y = location.y;

snapshot.center = center;

snapshot.transform = CGAffineTransformMakeScale(1.05, 1.05);

snapshot.alpha = 0.98;

// Black out.

cell.backgroundColor = [UIColor blackColor];

} completion:nil];

}

break;

}

case UIGestureRecognizerStateChanged: {

CGPoint center = snapshot.center;

center.y = location.y;

snapshot.center = center;

// Is destination valid and is it different from source?

if (indexPath && ![indexPath isEqual:sourceIndexPath]) {

// ... update data source.

[self.dataSource exchangeObjectAtIndex:indexPath.row withObjectAtIndex:sourceIndexPath.row];

// ... move the rows.

[self.tableView moveRowAtIndexPath:sourceIndexPath toIndexPath:indexPath];

// ... and update source so it is in sync with UI changes.

sourceIndexPath = indexPath;

}

break;

}

default: {

// Clean up.

UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:sourceIndexPath];

[UIView animateWithDuration:0.25 animations:^{

snapshot.center = cell.center;

snapshot.transform = CGAffineTransformIdentity;

snapshot.alpha = 0.0;

// Undo the black-out effect we did.

cell.backgroundColor = [UIColor whiteColor];

} completion:^(BOOL finished) {

[snapshot removeFromSuperview];

snapshot = nil;

}];

sourceIndexPath = nil;

break;

}

}

}

- (UIView *)customSnapshotFromView:(UIView *)inputView {

UIView *snapshot = [inputView snapshotViewAfterScreenUpdates:YES];

snapshot.layer.masksToBounds = NO;

snapshot.layer.cornerRadius = 0.0;

snapshot.layer.shadowOffset = CGSizeMake(-1.0, 0.0);

snapshot.layer.shadowRadius = 1.0;

snapshot.layer.shadowOpacity = 0.4;

return snapshot;

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

-(void)refreshControl:(id)sender{

[NSThread sleepForTimeInterval:5.0];//刷新5秒钟

self.refreshControl.attributedTitle = [[NSAttributedString alloc]initWithString:@"刷新ing"];

[self.tableView reloadData];

[self.refreshControl endRefreshing];

NSLog(@"really?");

}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

// Return the number of sections.

return 1;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

// Return the number of rows in the section.

return self.dataSource.count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];

cell.textLabel.text = [NSString stringWithFormat:@"%@",self.dataSource[indexPath.row]];

// Configure the cell...

return cell;

}

// Override to support conditional editing of the table view.

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {

// Return NO if you do not want the specified item to be editable.

return YES;

}

// Override to support editing the table view.

//这个方法并没有走，但是也不能删掉这个方法

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {

if (editingStyle == UITableViewCellEditingStyleDelete) {

} else if (editingStyle == UITableViewCellEditingStyleInsert) {

// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view

}

}

-(NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath{

//设置删除按钮

UITableViewRowAction *deleteRowAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDestructive title:@"删除" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath) {

//要先删除数据源里的数据

[self.dataSource removeObjectAtIndex:indexPath.row];

[self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];

UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"删除" message:@"删除成功" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];

[alertView show];

}];

//设置收藏按钮

UITableViewRowAction *collection = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"收藏" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath) {

UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"收藏" message:@"收藏成功" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];

[alertView show];

[self.tableView reloadData];

}];

//设置置顶按钮

UITableViewRowAction *topRowAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"置顶" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath) {

topRowAction.backgroundColor = [UIColor yellowColor];

[self.dataSource exchangeObjectAtIndex:indexPath.row withObjectAtIndex:0];

NSIndexPath *first = [NSIndexPath indexPathForRow:0 inSection:indexPath.section];

//        NSIndexPath *f =[NSIndexPath inde]

[tableView moveRowAtIndexPath:indexPath toIndexPath:first];

}];

deleteRowAction.backgroundEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];

topRowAction.backgroundColor = [UIColor blueColor];

deleteRowAction.backgroundColor = [UIColor grayColor];

collection.backgroundColor = [UIColor brownColor];

return @[deleteRowAction,collection,topRowAction];

}

// Override to support rearranging the table view.

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {

[tableView moveRowAtIndexPath:fromIndexPath toIndexPath:toIndexPath];

}

// Override to support conditional rearranging of the table view.

- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {

// Return NO if you do not want the item to be re-orderable.

return YES;

}

/*

#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

// Get the new view controller using [segue destinationViewController].

// Pass the selected object to the new view controller.

}

*/

@end