单纯的表格增删改查 没有数据库
// AppDelegate.m
ViewController *theVc = [[ViewController alloc]init];
//导航栏标题
theVc.title = @"姓名名单";
UINavigationController *theNav = [[UINavigationController alloc]initWithRootViewController:theVc];
//导航栏颜色
theNav.navigationBar.backgroundColor = [UIColor whiteColor];
self.window.rootViewController = theNav;
ViewController.m
//签协议
<UITableViewDelegate,UITableViewDataSource,UIAlertViewDelegate>
{
NSMutableArray *theArray;
NSInteger theIndex;
NSInteger intar;
UITextField *theTF;
}
//表格
-(UITableView *)theTableView
{
if (!_theTableView)
{
_theTableView = [[UITableView alloc] initWithFrame:self.view.frame];
//签协议
_theTableView.delegate = self;
_theTableView.dataSource = self;
//设置表格红线
_theTableView.separatorColor = [UIColor redColor];
}
return _theTableView;
}
=============== -(void)viewDidLoad ==========================================================
//添加到视图
[self.view addSubview:self.theTableView];
//数组初始化
theArray = [NSMutableArray arrayWithObjects:@"莫文蔚",@"奚梦瑶",@"陈乔恩",@"谢娜",@"刘嘉玲", nil];
//添加导航控制右按钮
UIBarButtonItem *theLeft = [[UIBarButtonItem alloc]initWithTitle:@"编辑" style:UIBarButtonItemStylePlain target:self action:@selector(click)];
UIBarButtonItem *theRight = [[UIBarButtonItem alloc]initWithTitle:@"添加" style:UIBarButtonItemStylePlain target:self action:@selector(add)];
//将导航控制器按钮添加到视图上
self.navigationItem.rightBarButtonItem = theRight;
self.navigationItem.leftBarButtonItem = theLeft;
////添加导航栏按钮另一种系统风格方法
// self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UIBarButtonItemStyleDone target:self action:@selector(click)];
//
////导航栏右按钮
// self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"+" style:UIBarButtonItemStyleDone target:self action:@selector(add)];
=========================================================================
//左按钮响应事件
-(void)click
{
//判断是否进行删除或不删除
[self.theTableView setEditing:!self.theTableView.editing animated:YES];
}
//右按钮响应事件
-(void)add
{
//判断和编辑不会同时存在
[self.theTableView setEditing:NO animated:YES];
//弹出框
UIAlertView *theAlertView = [[UIAlertView alloc]initWithTitle:nil message:@"please" delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:@"Ok", nil];
//文本框
theAlertView.alertViewStyle = UIAlertViewStylePlainTextInput;
//判断标识符
theAlertView.tag = 1000;
//添加到视图
[theAlertView show];
//刷新表格
[self.theTableView reloadData];
}
//执行添加
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
UITextField *theTF1 = [alertView textFieldAtIndex:0];
if (buttonIndex == 1)
{
if (alertView.tag == 1000)
{
[theArray addObject:theTF1.text];
}
}
//刷新表格
[self.theTableView reloadData];
}
#pragma -
#pragma mark - UITableViewDataSource
//表格要显示的行数
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return theArray.count;
}
//侧滑删除
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
[theArray removeObjectAtIndex:indexPath.row];
//刷新表格
[self.theTableView reloadData];
}
//表格与单元格的关联
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPat
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@""];
if (!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@""];
}
cell.textLabel.text = theArray[indexPat.row];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"是否进行修改" delegate:self cancelButtonTitle:@"放弃修改" otherButtonTitles:@"确认修改" , nil];
intar = indexPath.row;
alert.tag = 8888;
[alert show];
//刷新表格
[self.theTableView reloadData];
}
- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex;{
//执行修改内容输入框
if(alertView.tag == 8888)
{
if (buttonIndex == 1)
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"请输入修改内容" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定" , nil];
//弹出框风格
alert. alertViewStyle = UIAlertViewStylePlainTextInput;
alert.tag = 6666;
theTF = [alert textFieldAtIndex:0];
[alert show];
}
}
//替换修改
else if (alertView.tag == 6666)
{
if (buttonIndex == 1)
{
[theArray replaceObjectAtIndex:intar withObject:theTF.text];
}
[self.theTableView reloadData];
}
}
谢谢
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