Table View 导航按钮
效果:
AppDelegate.m
创建导航栏
ViewController.m
#import "ViewController.h"
@interface ViewController (){
UITableView *_tableView;
NSMutableArray *_arr;
UITextField *_text,*_text1;
NSInteger num;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 添加标题
self.title = @"信息管理";
// 初始化数组
_tableView = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];
// 设置代理
_tableView.delegate = self;
_tableView.dataSource = self;
// 添加到视图上
[self.view addSubview:_tableView];
// 初始化数组并赋值
_arr = [NSMutableArray arrayWithObjects:@"张三",@"李四",@"王五", nil];
// 添加左右按钮
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"编辑" style:UIBarButtonItemStylePlain target:self action:@selector(leftAction)];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"添加" style:UIBarButtonItemStylePlain target:self action:@selector(rightAction)];
}
#pragma -
#pragma mark - UITableViewDelegate
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _arr.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"1"];
if (cell == nil)
{
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"1"];
}
cell.textLabel.text = _arr[indexPath.row];
return cell;
}
#pragma -
#pragma mark - 左右按钮事件
- (void)leftAction
{
if (_tableView.editing == NO)
{
[_tableView setEditing:YES animated:YES];
}
else
{
[_tableView setEditing:NO animated:YES];
}
}
- (void)rightAction
{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:@"添加数据" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
// 设置风格
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
_text = [alert textFieldAtIndex:0];
alert.tag = 1000;
[alert show];
}
#pragma -
#pragma mark - UIAlertViewDelegate
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (alertView.tag == 1000)
{
if (buttonIndex == 1)
{
[_arr addObject:_text.text];
}
[_tableView reloadData];
}
else if (alertView.tag == 1001)
{
if (buttonIndex == 1)
{
UIAlertView *alert2 = [[UIAlertView alloc]initWithTitle:@"提示" message:@"请修改单元格内容" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
alert2.alertViewStyle = UIAlertViewStylePlainTextInput;
_text1 = [alert2 textFieldAtIndex:0];
alert2.tag = 1002;
[alert2 show];
}
}
else if (alertView.tag == 1002)
{
if (buttonIndex == 1)
{
[_arr replaceObjectAtIndex:num withObject:_text1.text];
}
[_tableView reloadData];
}
}
// 进入编辑状态的方法
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
[_arr removeObjectAtIndex:indexPath.row];
[_tableView reloadData];
}
// 点击任一行
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UIAlertView *alert1 = [[UIAlertView alloc]initWithTitle:@"提示" message:@"是否修改单元格内容" delegate:self cancelButtonTitle:@"放弃修改" otherButtonTitles:@"修改", nil];
alert1.tag = 1001;
[alert1 show];
num = indexPath.row;
}
