在编辑tableview的时候，我们有时候会需要编辑对一些cell进行删除（增加），在这个时候，我们最好用系统的方法来进行增删的操作
//
// text1Controller.m
// text
//
// Created by 123 on 16/5/5.
// Copyright © 2016年 yipinbaike. All rights reserved.
// #import "text1Controller.h" @interface text1Controller ()<UITableViewDelegate,UITableViewDataSource>
{
UITableView * _mainTableView;
UITableViewCellEditingStyle _editStyle;
NSMutableArray * _dataArray;
NSMutableArray * _delArray;
}
@end @implementation text1Controller - (void)viewDidLoad {
[super viewDidLoad]; //数据源
_dataArray = [[NSMutableArray alloc]init];
for (int i = ; i<; i++) {
NSString *text = [NSString stringWithFormat:@"fstext-%i", i];
[_dataArray addObject:text];
}
//删除数据源
_delArray = [[NSMutableArray alloc]init];
[self createTableView];
} - (void)createTableView{
UIButton * btn1 = [[UIButton alloc]initWithFrame:CGRectMake(, , self.view.frame.size.width/, )];
[self.view addSubview:btn1];
[btn1 addTarget:self action:@selector(editing) forControlEvents:UIControlEventTouchUpInside];
btn1.backgroundColor = [UIColor whiteColor];
[btn1 setTitle:@"编辑" forState:UIControlStateNormal];
[btn1 setTitleColor:[UIColor redColor] forState:UIControlStateNormal]; UIButton * btn2 = [[UIButton alloc]initWithFrame:CGRectMake(self.view.frame.size.width/, , self.view.frame.size.width/, )];
[self.view addSubview:btn2];
[btn2 addTarget:self action:@selector(delete) forControlEvents:UIControlEventTouchUpInside];
btn2.backgroundColor = [UIColor whiteColor];
[btn2 setTitle:@"删除" forState:UIControlStateNormal];
[btn2 setTitleColor:[UIColor redColor] forState:UIControlStateNormal]; _mainTableView = [[UITableView alloc]initWithFrame:CGRectMake(, , self.view.frame.size.width, self.view.frame.size.height-)];
[self.view addSubview:_mainTableView];
_mainTableView.delegate = self;
_mainTableView.dataSource = self;
_editStyle =UITableViewCellEditingStyleDelete;
} - (void)delete{
if (_mainTableView.isEditing) {
for (id model in _delArray) {
[_dataArray removeObject:model];
}
[_delArray removeAllObjects];
[_mainTableView reloadData];
_mainTableView.editing = NO;
_editStyle = UITableViewCellEditingStyleDelete;
}
}
- (void)editing{
_editStyle = UITableViewCellEditingStyleDelete | UITableViewCellEditingStyleInsert;
_mainTableView.editing = !_mainTableView.isEditing;
if (!_mainTableView.editing) {
_editStyle = UITableViewCellEditingStyleDelete;
[_delArray removeAllObjects];
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return _dataArray.count;
}
- (UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
if (!cell) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"];
}
cell.textLabel.text = _dataArray[indexPath.row];
return cell;
} - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return ;
}
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{
return _editStyle;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
if (tableView.isEditing) {
[_delArray addObject:_dataArray[indexPath.row]];
}
} - (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{
if (tableView.isEditing) {
[_delArray removeObject:_dataArray[indexPath.row]];
}
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
if (editingStyle==UITableViewCellEditingStyleDelete) {
[_dataArray removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
}
//设置删除按钮现实中文
- (NSString*)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
return @"删除";
} - (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} @end