Test

Objective-C

////  ContactsViewController.m//  01- 私人通讯录////  Created by HiJack on 15/12/10.//  Copyright © 2015年 HiJack. All rights reserved.//#import "ContactsViewController.h"#import "AddViewController.h"#import "Contact.h"#import "EditViewController.h"#import "DeleteViewController.h"@interface ContactsViewController () <AddViewControllerDelegate, EditViewControllerDelegate>- (IBAction)logout:(id)sender;- (IBAction)clickTrushItem:(UIBarButtonItem *)sender;@end@implementation ContactsViewController- (void)viewDidLoad {    [super viewDidLoad];          // Uncomment the following line to preserve selection between presentations.    // self.clearsSelectionOnViewWillAppear = NO;        // Uncomment the following line to display an Edit button in the navigation bar for this view controller.    // self.navigationItem.rightBarButtonItem = self.editButtonItem;}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}#pragma mark - Tableview数据源方法- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {    return self.contacts.count  ;}#define ID  @"contact"- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    // 1.创建cell    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];//    if (cell == nil) {//        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:ID];//    }        // 2.设置cell数据    Contact *contact = self.contacts[indexPath.row];    cell.textLabel.text = contact.name;    cell.detailTextLabel.text = contact.phoneNum;                return cell;}// 数据操作 删除或插入// After a row has the minus or plus button invoked (based on the UITableViewCellEditingStyle for the cell), the dataSource must commit the change// Not called for edit actions using UITableViewRowAction - the action's handler will be invoked instead// 向左滑动row调用该方法,可实现滑动删除或增加- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(nonnull NSIndexPath *)indexPath{    if (editingStyle == UITableViewCellEditingStyleDelete) {        // 1.删除模型数据(model)        [self.contacts removeObjectAtIndex:indexPath.row];        // 2.删除指定行 (view)        [self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];        // 3.归档             [self archiveContacts:self.contacts];                // 4刷新列表        [self.tableView reloadData];            }    }#pragma mark - Tableview代理方法//  可以不实现,默认为删除. (另外一个是UITableViewCellEditingStyleInsert//- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath//{//    return UITableViewCellEditingStyleDelete;//}#pragma mark - 点击事件- (IBAction)logout:(id)sender {    // 创建UIAlertControlller对象（设置标题，内容，显示风格为ActionSheet）    UIAlertController *sheet = [UIAlertController alertControllerWithTitle:@"确定要注销吗" message:nil preferredStyle:UIAlertControllerStyleActionSheet];        // 创建UIAlertAction对象（按钮标题、风格为Default，Cancel以及Destructive 、action执行后续动作）    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel  handler:nil];    UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive  handler: ^(UIAlertAction * action) {        // 返回上一界面        [self.navigationController popViewControllerAnimated:YES];    }];        // UIAlerController加入Action    [sheet addAction:cancelAction];    [sheet addAction:okAction];       // 显示UIAlertControlller对象    [self presentViewController:sheet animated:YES completion:nil];}/** *  切换编辑状态(内部调用 - (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath) * *  @param sender 垃圾箱按钮 */- (IBAction)clickTrushItem:(UIBarButtonItem *)sender {    [self.tableView setEditing:! self.tableView.editing animated:YES];}/** *  segua跳转前调用的方法 */- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{    id vc = segue.destinationViewController;        if ([vc isKindOfClass:[AddViewController class]]) { // 跳转到添加联系人的控制器        AddViewController *addViewController = segue.destinationViewController;        addViewController.delegate = self;    } else if ([vc isKindOfClass:[EditViewController class]]) { // 跳转到查看联系人的控制器        EditViewController *editVc = vc;          // 方法1://        UITableViewCell *cell = sender; //        editVc.contact = [self contactInCell:cell];//        NSLog(@"%@",cell.textLabel.text );  // 方法2:(最好)        // 取得选中的行号        editVc.delegate = self;        NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];        editVc.indexPath = indexPath;        editVc.contact = self.contacts[indexPath.row];                // 设置控制器标题    } else if ([vc isKindOfClass:[DeleteViewController class]]) {                DeleteViewController *deleteVc = vc;        deleteVc.contacts = self.contacts;    }  }#pragma mark - 添加contact并归档- (void)addViewControllerAddToContact:(AddViewController *)addViewController addContact:(Contact *)contact{    // 添加数据模型    [self.contacts addObject:contact];        // 归档      [self archiveContacts:self.contacts];                   // 刷新列表    [self.tableView reloadData];}#pragma mark - 代理方法实现:EditViewController- (void)editAndSave:(Contact *)contact withIndexPath:(NSIndexPath *)indexPath{   // [self.contacts replaceObjectAtIndex:indexPath.row withObject:contact];        [self.tableView reloadData];            }#pragma mark - 自定义归档- (void)archiveContacts:(NSMutableArray *)contacts{    // 如果模型有数据才进行归档    if (contacts.count) {                NSMutableArray *dictArray = [NSMutableArray array];                // 遍历数据模型        for (Contact *contact in contacts) {            NSDictionary *dict = [[NSDictionary alloc]init];                        // Returns a dictionary containing the property values identified by each of the keys in a given array.            dict = [contact dictionaryWithValuesForKeys:@[@"name",@"phoneNum"]];                       [dictArray addObject:dict];        }        // 1. document路径        NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask , YES)lastObject ];        // 2. 拼接文件路径        NSString *contactPlist = [docPath stringByAppendingPathComponent:@"contacts.plist"];                        [dictArray writeToFile:contactPlist atomically:YES];    }     }#pragma mark - 自定义读档- (NSMutableArray *)readContactsFromFile{        // 1. document路径    NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask , YES)lastObject ];    NSLog(@"%@",docPath );    // 2. 拼接文件路径    NSString *contactPlist = [docPath stringByAppendingPathComponent:@"contacts.plist"];    NSMutableArray *contacts = [NSMutableArray array];    NSMutableArray *dictArray = [NSMutableArray arrayWithContentsOfFile:contactPlist];    for (NSDictionary *dict in dictArray) {        Contact *contact = [[Contact alloc]init];        [contact setValuesForKeysWithDictionary:dict];        [contacts addObject:contact];    }    return contacts;}//#pragma mark - 自定义self方法//- (Contact *)contactInCell:(UITableViewCell *)cell//{//    Contact *contact = [[Contact alloc]init];//    contact.name = cell.textLabel.text;//    contact.phoneNum = cell.detailTextLabel.text;//    return contact;//}@end

good song