一个tableView页面，左上角的按钮用来添加行,同时可以移动行，右上角的按钮用来删除行,不能移动行,要求第一行不能被改变（删除，移动，增加）,第一行用来返回上一级。
实现效果：
上面展示了一个从根视图跳转到子视图，再从添加选项到移动再到删除，然后返回根视图的一个过程。
操作步骤：
1.创建一个Empty项目
2.创建根视图控制器，命名为FirstViewController
FirstViewController.h:
#import <UIKit/UIKit.h> @interface FirstViewController : UITableViewController @property(nonatomic,retain) NSMutableArray *array; @end
FirstViewController.m:
#import "FirstViewController.h"
#import "DXWViewController.h"
@interface FirstViewController ()
@end
NSString *CellIdentifier = @"Cell";
@implementation FirstViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
self.array = @[
[[DXWViewController alloc] initWithStyle:UITableViewStylePlain]];
self.title = @"目录列表";
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:CellIdentifier];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.array count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
int row = [indexPath row];
cell.textLabel.text = ((DXWViewController *)self.array[row]).title;
//有右边的>符号
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
int row = [indexPath row];
[self.navigationController pushViewController:self.array[row] animated:YES];
}
3.修改AppDelegate
#import "DXWAppDelegate.h"
#import "FirstViewController.h"
@implementation DXWAppDelegate
- (void)dealloc
{
[_window release];
[super dealloc];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
//创建首页
FirstViewController *first = [[FirstViewController alloc] initWithStyle:UITableViewStylePlain];
//创建一个导航栏，其中的首页是FirstViewController
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:first];
//将导航栏作为根视图控制器
self.window.rootViewController = nav;
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
4.创建子视图控制器，命名为DXWViewController
DXWViewController.h:
#import <UIKit/UIKit.h> @interface DXWViewController : UITableViewController<UIAlertViewDelegate> @property(nonatomic,retain)NSMutableArray *array; @property(retain,nonatomic)NSIndexPath *indexPath; @end
DXWViewController.m:
#import "DXWViewController.h"
BOOL RIGHTBUTTON;
@interface DXWViewController ()
@end
@implementation DXWViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self)
{
self.title = @"子视图";
NSArray *arr = @[@"返回上一级",@"小花",@"小李",@"小王",@"小丁",@"小张",@"小康",@"小刘",@"小墩",@"大墩"];
self.array = [arr mutableCopy];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
//首先要添加右上角的一个edit按钮，按钮按下去可以设置可以编辑
UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithTitle:@"添加" style:UIBarButtonItemStyleBordered target:self action:@selector(itemLeftButtonClick:)];
self.navigationItem.leftBarButtonItem = button;
UIBarButtonItem *button1 = [[UIBarButtonItem alloc] initWithTitle:@"删除" style:UIBarButtonItemStyleBordered target:self action:@selector(itemRightButtonClick:)];
self.navigationItem.rightBarButtonItem = button1;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.array count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *identifier = @"Identifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
}
int row = [indexPath row];
cell.textLabel.text = self.array[row];
return cell;
}
-(void)itemLeftButtonClick:(id)sender
{
//设置可以编辑
RIGHTBUTTON = false;
[self.tableView setEditing:!self.tableView.editing];//设置成和当前状态相反的状态
if (self.tableView.editing)
{
[self.navigationItem.leftBarButtonItem setTitle:@"完成"];
}
else
{
[self.navigationItem.leftBarButtonItem setTitle:@"添加"];
}
}
-(void)itemRightButtonClick:(id)sender
{
RIGHTBUTTON = true;
//设置可以编辑
[self.tableView setEditing:!self.tableView.editing];//设置成和当前状态相反的状态
if (self.tableView.editing)
{
[self.navigationItem.rightBarButtonItem setTitle:@"完成"];
}
else
{
[self.navigationItem.rightBarButtonItem setTitle:@"删除"];
}
}
//设置编译图标
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
//删除
if (RIGHTBUTTON)
{
return UITableViewCellEditingStyleDelete;
}
else
{
return UITableViewCellEditingStyleInsert;
//return UITableViewCellEditingStyleNone;
}
}
//设置是否可以移动
-(BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
if (RIGHTBUTTON)
{
return NO;
}
else
{
if (indexPath != 0) {
return YES;
}
}
}
-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([indexPath row] == 0) {
return NO;
}
else
{
return YES;
}
}
//实现UIAlertView代理协议
-(void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
//获取AlertView中的数据
NSString *str = [alertView textFieldAtIndex:0].text;
//将数据插入到array数组中（位置是点击的位置的下一行）
[self.array insertObject:str atIndex:[self.indexPath row]+1];
//用点击位置的下一行创建一个新的NSIndexPath
int newrow = [self.indexPath row]+1;
NSIndexPath *index = [NSIndexPath indexPathForRow:newrow inSection:0];
//在tableView的这个NSIndexPath中插入数据
[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:index] withRowAnimation: UITableViewRowAnimationFade];
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
//删除按钮
if (RIGHTBUTTON) {
if ([indexPath row] != 0)
{
int row = [indexPath row];
[self.array removeObjectAtIndex:row];
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationMiddle];
}
}
//添加按钮
else
{
//获得点击的indexPath
self.indexPath = indexPath;
//创建一个UIAlertView,用来获得数据
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"enterstring" message:nil delegate:self cancelButtonTitle:@"ok" otherButtonTitles: nil];
//带有输入框的UIAlertView
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
[alert show];
}
}
//可以根据行来设置delete按钮位置上button的标题
-(NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath
{
return @"你删我一个试试";
}
-(void)dealloc
{
[self.array release];
[self.indexPath release];
[super dealloc];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([indexPath row] == 0)
{
[self.navigationController popToRootViewControllerAnimated:YES];
}
//蓝色背景消失
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
-(void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath
{
if (!RIGHTBUTTON) {
if ([destinationIndexPath row]!=0) {
id object= self.array[[sourceIndexPath row]];
[self.array removeObject:self.array[[sourceIndexPath row]]];
[self.array insertObject:object atIndex:[destinationIndexPath row]];
NSLog(@"%d",[self.array count]);
NSLog(@"当前位置%d,目标位置%d",[sourceIndexPath row],[destinationIndexPath row]);
}
//如果是跟第一行移动，则不允许这样操作，重新加载数据
[self.tableView reloadData];
}
}
@end
Demo源文件：
http://download.csdn.net/detail/s10141303/5995485
