UITableView上的批量操作(系统方法)

////  TableViewController.m#import "TableViewController.h"#import "tgModel.h"#import "tgCell.h"@interface TableViewController ()/** 所有团购数据 */@property(nonatomic,strong) NSMutableArray *tgs;- (IBAction)clickedDeleteButton:(UIBarButtonItem *)sender;- (IBAction)clickedEditButton:(UIBarButtonItem *)sender;@end@implementation TableViewController- (NSMutableArray *)tgs{    if (_tgs == nil) {        // 加载plist文件中的字典数组        NSString *path = [[NSBundle mainBundle] pathForResource:@"tgs.plist" ofType:nil];        NSArray *dictArray = [NSArray arrayWithContentsOfFile:path];                // 字典数组 -> 模型数组        NSMutableArray *arrayM = [NSMutableArray array];        for (NSDictionary *dict in dictArray) {            tgModel *model = [tgModel tgWithDict:dict];            [arrayM addObject:model];        }                _tgs = arrayM;    }    return _tgs;}- (void)viewDidLoad {    [super viewDidLoad];        //允许在编辑模式进行多选操作    self.tableView.allowsMultipleSelectionDuringEditing = YES;    self.navigationItem.rightBarButtonItem.title = nil;}#pragma mark - Table view data source- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    return self.tgs.count;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    // 创建cell的过程封装到cell类中    tgCell *cell = [tgCell cellWithTableView:tableView];        //传递模型数据    cell.model = self.tgs[indexPath.row];        return cell;}#pragma mark - Table view delegate- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{}- (IBAction)clickedDeleteButton:(UIBarButtonItem *)sender{    // 获取所有被选中的行    NSArray *indexPaths = [self.tableView indexPathsForSelectedRows];        //遍历所有的行号    NSMutableArray *deleteds = [NSMutableArray array];    for (NSIndexPath *path in indexPaths) {        [deleteds addObject:self.tgs[path.row]];    }        //删除模型数据    [self.tgs removeObjectsInArray:deleteds];        //刷新表格//    [self.tableView reloadData];    //用下面这个方法有动画效果    [self.tableView deleteRowsAtIndexPaths:indexPaths withRowAnimation:YES];}/** *  点击了导航栏左边按钮 */- (IBAction)clickedEditButton:(UIBarButtonItem *)sender{    //切换编辑模式    if (self.tableView.isEditing) {        [self.tableView setEditing:NO animated:YES];        //更改leftBarButtonItem上的文字        self.navigationItem.leftBarButtonItem.title = @"编辑";        self.navigationItem.rightBarButtonItem.title = nil;    }else{        [self.tableView setEditing:YES animated:YES];        //更改leftBarButtonItem上的文字        self.navigationItem.leftBarButtonItem.title = @"取消";        self.navigationItem.rightBarButtonItem.title = @"删除";    }}@end