UITableView详解(UITableViewCell(四) 增加 删除 移动)

@implementation HMTAppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    
    HMTRootViewController * rootRC = [[HMTRootViewController alloc]init];
    
    UINavigationController * rootNC = [[UINavigationController alloc]initWithRootViewController:rootRC];
    
    self.window.rootViewController = rootNC;
    
    
    [self.window makeKeyAndVisible];
    return YES;
}

#import 

@interface HMTRootViewController : UIViewController{

    int i ;
}

@property (nonatomic,retain)NSMutableArray * iPhoneArrays;
@property (nonatomic,retain)UITableView *  iPhoneTableView;

@end

#import "HMTRootViewController.h"

@interface HMTRootViewController ()

@end

@implementation HMTRootViewController

-(void)dealloc{

    RELEASE_SAFELY(_allGroupArray);
    RELEASE_SAFELY(_iPhoneTableView);
    [super dealloc];

}

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        _iPhoneArrays = [[NSMutableArray alloc]init];
        i = 0;
        
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    // 灵活运用数组
    // 一个区的每一行数据(小数组)
    NSArray * array1 = [NSArray arrayWithObjects:@"中国",@"日本",@"韩国", nil];
    NSArray * array2 = [NSArray arrayWithObjects:@"德国",@"英国",@"法国",@"瑞士", nil];
    NSArray * array3 = [NSArray arrayWithObjects:@"美国",@"俄罗斯",@"墨西哥", nil];
    // 每一个区的数据(大数组)
    self.iPhoneArrays = [NSMutableArray arrayWithObjects:array1,array2,array3, nil];
    
    // 建立一个表单视图
    self.iPhoneTableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320, self.view.bounds.size.height - 44)
                       style:UITableViewStyleGrouped];
    
    _iPhoneTableView.separatorColor = [UIColor redColor];
    _iPhoneTableView.delegate = self;
    _iPhoneTableView.dataSource = self;
    
    [self.view addSubview:_iPhoneTableView];
    
    /*
    UIBarButtonItem * rightButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemEdit
                                    target:self action:@selector(didClickRightBarButtonItemAction:)];
    self.navigationItem.rightBarButtonItem = rightButton;
    */
    // 用系统定义好的一个edit按钮
    self.navigationItem.rightBarButtonItem = self.editButtonItem;
    self.editButtonItem.title = @"编辑";
    
	// Do any additional setup after loading the view.
}

#pragma mark - 设置编辑环境,开启/关闭

// 系统自带按钮
- (void)setEditing:(BOOL)editing animated:(BOOL)animated{
    
    [super setEditing:editing animated:animated];
    
    #pragma mark 推荐这种写法
    self.editButtonItem.title = editing?@"完成":@"编辑";
    
    [_listTableView setEditing:editing animated:animated];
    NSLOG_FUNCTION;
    
}

// 自定义编辑按钮
- (void)didClickRightBarButtonItemAction:(UIBarButtonItem *)rightButton{
    
    if (_isEditing) {
        _isEditing = NO;
        rightButton.title = @"编辑";
    } else {
        _isEditing = YES;
        rightButton.title = @"完成";
    }
    // 熟悉这种写法
    //_isEditing = !_isEditing;
    [_listTableView setEditing:_isEditing animated:YES];
    
}

#pragma mark - 数据设置

// 设置分区
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{

    return [_iPhoneArrays count];
    
}

// 设置每个分区的行数
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{

    return [[_iPhoneArrays objectAtIndex:section] count];

}

// cell的具体实现和设置
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    static NSString * celldentifier = @"cell";

    UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:celldentifier];
    
    if (!cell) {
         cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:celldentifier];
        i++;NSLog(@" ------%i---------",i);
    }
    
    cell.textLabel.text = [[_iPhoneArrays objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];
    
    
    return cell;
}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{

    if (section == 0) {
        return @"亚洲";
    } else if (section == 1){
        return @"欧洲";
    }else
        return @"北美洲";

}

// cell被选中
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    
    // 取消选中后显示的高亮状态,也就是只在选中的那一刻出现高亮
    [tableView deselectRowAtIndexPath:indexPath animated:YES];


}

#pragma mark - 数据编辑Edit 删除/添加

#pragma mark 询问具体到某一区某一行能否被编辑(删除/添加)
// 询问能否被编辑 ----- 系统默认全部cell能编辑,这个方法能够让你设置具体到哪一行哪一列
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath{

    return YES;

}

#pragma mark 返回编辑样式,是添加还是删除
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    // 第3个分区进行增加操作
    if (indexPath.section == 2) {
        return  UITableViewCellEditingStyleInsert;
    }
    
    // 其余分区进行删除操作
    return UITableViewCellEditingStyleDelete;
}

#pragma mark 最后编辑操作(单纯的设置这个方法,cell向左滑动会出现delete操作,短信.微信.QQ都是此操作)
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
    
    // 判断状态
    // 删除数据
    if (editingStyle == UITableViewCellEditingStyleDelete) {
    
        // 做判断,如果
        if ([deletaArray count] > 1) {
            
            // 先删除数据
            [[_iPhoneArrays objectAtIndex:indexPath.section] removeObjectAtIndex:indexPath.row];
            // 删除cell(指定行)
            [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:[NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section], nil] 
                                              withRowAnimation:UITableViewRowAnimationLeft];
            //[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationLeft];
            
        }else{
        
            // 直接移除掉整个数组
            [_iPhoneArrays removeObjectAtIndex:indexPath.section];
            // 删除整个分区
            [tableView deleteSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationLeft];
            
        }
        
    }
    
    // 添加数据
    if (editingStyle == UITableViewCellEditingStyleInsert) {
        
        NSString * text = @"天空之城";
        // 先添加数据源
        [[_iPhoneArrays objectAtIndex:indexPath.section] addObject:addCellText];
        // 自定义要插入的行数(indexPath.row + ?(?>0) ?是几就代表添加的数据会出现在+号下面的几个位置处 ?为0就会出现在点击加号那一行的上面)
        NSIndexPath * selfIndexPath = [NSIndexPath indexPathForRow:indexPath.row+1 inSection:indexPath.section];
        [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:selfIndexPath] withRowAnimation:UITableViewRowAnimationLeft];        
        
    }

}


#pragma mark - 数据编辑Edit 移动

#pragma mark 询问具体到某一区某一行能否被编辑(移动)
// 询问能否被移动(参数indexPath作用:指点哪些区哪些行能够移动或者不能够移动)
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath{

    return YES;

}

#pragma mark 设置能否被移动
- (NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath{

    // 一般,移动都是发生在同区之间,数据在不同区之间移动,那么数据一开始就应该不会编辑到一个区
    if (sourceIndexPath.section == proposedDestinationIndexPath.section) {
        // 允许移动(目的地)
        return proposedDestinationIndexPath;
        
    }else{
        // 不允许移动(源始地)
        return sourceIndexPath;
    
    }
    
}

#pragma mark 完成最后移动,主要操作数据就行(注:移动并不是交换,移动看看就知道了,移动到一个位置,原先所有的cell会自动向下)
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath{
    
    // 取得要移动的数据
    NSString * moveString = [[_iPhoneArrays objectAtIndex:sourceIndexPath.section] objectAtIndex:sourceIndexPath.row];
    // 移动到目的地
    [[_iPhoneArrays objectAtIndex:sourceIndexPath.section] insertObject:moveString atIndex:destinationIndexPath.row];
    // 删除源始地的数据
    [[_iPhoneArrays objectAtIndex:sourceIndexPath.section] removeObjectAtIndex:sourceIndexPath.row];
    
}


- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end