iOS UI 07 uitableviewi3

//

//  RootViewController.m

//  ui - 09  通讯录

//

//  Created by dllo on 15/11/19.

//  Copyright (c) 2015 dllo. All rights reserved.

//


#import "RootViewController.h"

#import "Contact.h"

@interface RootViewController () <UITableViewDelegate , UITableViewDataSource>

@property (nonatomic, retain) NSMutableDictionary *contactDic;

@property (nonatomic, retain) UITableView *tablev;

@end


@implementation RootViewController

- (void)dealloc

{

    [_contactDic release];

    [super dealloc];

}

- (void)viewDidLoad {

    [super viewDidLoad];

    

    self.view.backgroundColor = [UIColor whiteColor];

    self.navigationItem.title = @"通讯录";

    

    [self getData];

    

    self.tablev = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];

    self.tablev.delegate = self;

    self.tablev.dataSource = self;

    [self.view addSubview:self.tablev];

    [_tablev release];

#warning 编辑 - 添加编辑键

    self.navigationItem.rightBarButtonItem = self.editButtonItem;

    


    

    

    

    // Do any additional setup after loading the view.

}

#warning 编辑2 - tableview处于编辑状态

- (void)setEditing:(BOOL)editing animated:(BOOL)animated

{

    [super setEditing:editing animated:animated];

    //当点击编辑的时候table也进入编辑状态

    [self.tablev setEditing:editing animated:animated];

    

    

}

#warning 编辑3 指定tableview哪些行可以编辑

-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath

{

    return YES;

}

#warning 编辑4 - 指定tableview编辑的样式(添加, 删除)

- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath

{

    if (indexPath.section < 4) {

        return UITableViewCellEditingStyleDelete;

    } else {

        return UITableViewCellEditingStyleInsert;

    }

}

#warning 编辑5 编辑完成(先操作数据源,再修改UI)

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath

{

    NSString *key = [self.contactDic.allKeys objectAtIndex:indexPath.section];

    NSMutableArray *Arr = [self.contactDic objectForKey:key];

    //删除操作

    if (UITableViewCellEditingStyleDelete == editingStyle) {

        //先删数据

        [Arr removeObjectAtIndex:indexPath.row];

        //再改UI

        //局部修改 - 只修改指定行

//        [self.tablev deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationLeft];

        //全局修改 - 重新加载一遍

        [self.tablev reloadData];

    }

    if (UITableViewCellEditingStyleInsert == editingStyle) {

        //先改数据

        Contact *cta = [[Contact alloc]init];

        cta.name = @"王宁";

        cta.gender = @"";

        cta.phoneNumber = @"54765735";

        cta.age = @"23";

        cta.hobby= @"qingchung";

        [Arr insertObject:cta atIndex:indexPath.row];

        [cta release];

        //再改ui

        [self.tablev insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationRight];

    }

    

    

    

}

#warning 移动1 -参照编辑的添加编辑键

#warning 移动 2 - 参照编辑的让tableview处于编辑状态

#warning 移动3 - 指定table哪些行可以移动

- (bool)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath

{

    

    return YES;

}

#warning 移动4 移动完成 (移动功能的逻辑)

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath

{

    NSString *key = [self.contactDic.allKeys objectAtIndex:sourceIndexPath.section];

    NSMutableArray *Arr = [self.contactDic objectForKey:key];

    

    //根据原地址找到待操作的contact对象

    //注意, 手动进行引用计数加1的操作, 防止从数组数组移除后因为计数减1引起空间释放

    Contact *contact = [[Arr objectAtIndex:sourceIndexPath.row] retain];

    [Arr removeObjectAtIndex:sourceIndexPath.row];

    //找到移动的目的地

     NSString *key2 = [self.contactDic.allKeys objectAtIndex:destinationIndexPath.section];

    NSMutableArray *Arr2 = [self.contactDic objectForKey:key2];

    [Arr2 insertObject:contact atIndex:destinationIndexPath.row];

    //不要忘记release 对应手动retain

    [contact release];

    

    //再改ui - 注意应用局部改变时要注意原来的位置是否还有数据

//    [self.tablev moveRowAtIndexPath:sourceIndexPath toIndexPath:destinationIndexPath]

    [self.tablev reloadData];

    

}


#warning 移动5 检测移动过程 实现限制跨区移动

- (NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath

{

    //若目的区与原区不同,则返回原地址不允许移动

    if (sourceIndexPath.section != proposedDestinationIndexPath.section) {

        return sourceIndexPath;

    } else {

        return proposedDestinationIndexPath;

    }

}





- (void)getData

{

    self.contactDic = [NSMutableDictionary dictionary];

    NSString *filepath = [[NSBundle mainBundle] pathForResource:@"contact" ofType:@"plist"];

    NSMutableDictionary *dic = [NSMutableDictionary dictionaryWithContentsOfFile:filepath];

    for (NSString *key in dic) {

        NSMutableArray *Arr = [NSMutableArray array];

        for (NSMutableDictionary *temp in [dic objectForKey:key]) {

            Contact *contact = [[Contact alloc]init];

//            contact.name = [temp objectForKey:@"name"];

//            contact.gender = [temp objectForKey:@"gender"];

//            contact.age = [temp  objectForKey:@"age"];

//            contact.phoneNumber = [temp objectForKey:@"phoneNumber"];

//            contact.hobby = [temp objectForKey:@"hobby"];

//            contact.picture = [temp objectForKey:@"picture"];

            //上面的这这一大段可以用一句话代替

           [contact setValuesForKeysWithDictionary:temp];

            [Arr addObject:contact];

            [contact release];

        }

        [self.contactDic setObject:Arr forKey:key];

    }

}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

    return 100;

}

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

{

    return [self.contactDic.allKeys objectAtIndex:section];

}

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

    return self.contactDic.allKeys.count;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

    NSString *key = [self.contactDic.allKeys objectAtIndex:section];

    NSMutableArray *Arr = [self.contactDic objectForKey:key];

    return Arr.count;

}




- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    NSString *cellstr = @"cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellstr];

    if (nil == cell) {

        cell = [[[UITableViewCell alloc]initWithStyle:      UITableViewCellStyleSubtitle reuseIdentifier:cellstr] autorelease];

    }

    NSString *key = [self.contactDic.allKeys objectAtIndex:indexPath.section];

    NSMutableArray *arr = [self.contactDic objectForKey:key];


    Contact *contact = [arr objectAtIndex:indexPath.row];

    cell.selectionStyle = UITableViewCellSelectionStyleNone;

    cell.textLabel.text = contact.name;

    cell.detailTextLabel.text = contact.phoneNumber;

    return cell;


}

- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView

{

    return self.contactDic.allKeys;

}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

{

    NSString *key = [self.contactDic.allKeys objectAtIndex:indexPath.section];

    NSMutableArray *Arr = [self.contactDic objectForKey:key];

    Contact *contact = [Arr objectAtIndex:indexPath.row];

    

    

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}


/*

#pragma mark - Navigation


// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

    // Get the new view controller using [segue destinationViewController].

    // Pass the selected object to the new view controller.

}

*/


@end



原文地址:https://www.cnblogs.com/yuhaojishuboke/p/5043082.html