IOS第13天(1,私人通讯录，登陆功能，界面的跳转传值，自定义cell,编辑界面)

******HMLoginViewController 登陆的界面

#import "HMLoginViewController.h"

#import "MBProgressHUD+MJ.h"

#import "HMContactsTableViewController.h"

@interface HMLoginViewController ()<UITextFieldDelegate>
@property (weak, nonatomic) IBOutlet UITextField *accountField;
@property (weak, nonatomic) IBOutlet UITextField *pwdField;
@property (weak, nonatomic) IBOutlet UIButton *loginBtn;
@property (weak, nonatomic) IBOutlet UISwitch *autoLoginS;
@property (weak, nonatomic) IBOutlet UISwitch *rmbPwdS;

@property (nonatomic, strong) HMContactsTableViewController *contact;
@end
@implementation HMLoginViewController
#warning 第四步做跳转之前的准备工作
/**
 *  执行segue的时候，跳转之前调用
 *  一般用做一些跳转之前的准备操作，给下一个控制器传值
 *  @param segue  <#segue description#>
 *  @param sender <#sender description#>
 */
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{

//    NSLog(@"%@---%@--%@",segue.identifier,segue.sourceViewController,segue.destinationViewController);

    // 获取目的控制器
    UIViewController *v = segue.destinationViewController;

    // 给联系人导航条设置标题
    v.navigationItem.title = [NSString stringWithFormat:@"%@的联系人",_accountField.text];

}
#warning 第三步处理登录功能
// 当点击登录的时候调用
- (IBAction)login:(id)sender { // hm 123

    // 判断用户输入的账号和密码是否正确
    if ([_accountField.text isEqualToString:@"hm"] && [_pwdField.text isEqualToString:@""]) { // 账号和密码正确

        // 显示遮盖：只要做一些比较耗时的操作最好用遮盖
        [MBProgressHUD showMessage:@"正在登录中"];

        // GCD
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            // 移除遮盖
            [MBProgressHUD hideHUD];
            // 执行segue
            [self performSegueWithIdentifier:@"login2contact" sender:nil];
        });

    }else{ // 不正确

        // MBProgressHud:提示框
        [MBProgressHUD showError:@"账号或者密码错误"];
    }
}
#warning 第二步 处理Switch
// 当记住密码状态改变的时候调用
- (IBAction)rmbPwdSwitch:(UISwitch *)sender {
    //
    if (sender.isOn == NO) {
        [_autoLoginS setOn:NO animated:YES];

    }

}
// 当自动登录状态改变的时候调用
- (IBAction)autoLoginSwitch:(UISwitch *)sender {
    if (sender.isOn == YES) {
        [_rmbPwdS setOn:YES animated:YES];
    }

}
- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.

#warning 第一步监听两个文本框的内容，控制器登录按钮的状态
    // 1.addTarget
    [_accountField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
    [_pwdField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];

    // 手动判断按钮是否能点击
    [self textChange];
}
// 当文本框的内容改变的时候就会调用
- (void)textChange
{
    // 判断两个文本框的内容
    _loginBtn.enabled = _accountField.text.length && _pwdField.text.length;
}
@end

*************HMContactsTableViewController.m联系人的界面

#import "HMContactsTableViewController.h"
#import "HMAddViewController.h"

#import "HMEditViewController.h"

#import "HMContactCell.h"

#import "HMContact.h"
@interface HMContactsTableViewController ()<UIActionSheetDelegate,HMAddViewControllerDelgegate,HMEditViewControllerDelegate>

@property (nonatomic, strong) NSMutableArray *contacts;
@end
@implementation HMContactsTableViewController
#warning 第五步操作
#pragma mark - 注销功能
// 点击注销就会调用这个方法
- (IBAction)logout:(id)sender {

    UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"是否注销？" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"注销" otherButtonTitles:nil, nil];

    [sheet showInView:self.view];

}
- (NSMutableArray *)contacts
{
    if (_contacts == nil) {
        _contacts = [NSMutableArray array];
    }
    return _contacts;
}

- (void)setName:(NSString *)name phone:(NSString *)phone
{
    NSLog(@"%@---%@",name,phone);
}
/**
 *   跳转之前，调用这个方法
 */
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    NSLog(@"%@",segue.destinationViewController);

    if ([segue.destinationViewController isKindOfClass:[HMAddViewController class]]) {

        HMAddViewController *vc = segue.destinationViewController;

        vc.delegate = self;
    }else{ // 跳转到编辑控制器
        HMEditViewController *edit = segue.destinationViewController;

        NSIndexPath *seletedIndex = [self.tableView indexPathForSelectedRow];

        edit.delegate = self;
        edit.contact = self.contacts[seletedIndex.row];

    }

}

// 成功更新了一个联系人的时候调用
- (void)editViewController:(HMEditViewController *)edit didUpdateContact:(HMContact *)contact
{
    // 刷新表格
    [self.tableView reloadData];
}

// 成功添加了一个联系人的时候调用
- (void)addViewController:(HMAddViewController *)add didAddContact:(HMContact *)contact
{
    // 保存
    [self.contacts addObject:contact];

    // 刷新表格
    [self.tableView reloadData];
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    // 移除分割线
    self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;

}

#pragma mark - Table view data source

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    return self.contacts.count;
}

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

    // 1.创建对象
    HMContactCell *cell = [HMContactCell cellWithTableView:tableView];

    // 2.传递模型
    cell.contact = self.contacts[indexPath.row];

    return cell;
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex) return;

    // 回到登录界面
    [self.navigationController popViewControllerAnimated:YES];
}

@end

************联系人的cell的界面 HMContactCell.m

#import "HMContactCell.h"
#import "HMContact.h"

@interface HMContactCell()

@property (nonatomic, weak) UIView *divide;

@end

@implementation HMContactCell

- (UIView *)divide
{
    if (_divide == nil) {

        UIView *v = [[UIView alloc] init];

        v.backgroundColor = [UIColor blackColor];

        v.alpha = 0.2;
        _divide = v;

        [self.contentView addSubview:_divide];
    }

    return _divide;
}

- (void)setContact:(HMContact *)contact
{
    _contact = contact;

    // 给cell的控件赋值
    self.textLabel.text = contact.name;
    self.detailTextLabel.text = contact.phone;

}

+ (instancetype)cellWithTableView:(UITableView *)tableView
{
    static NSString *ID = @"contact";
    return [tableView dequeueReusableCellWithIdentifier:ID];

}

// 从XIB加载完成的时候调用
- (void)awakeFromNib
{
    // Initialization code

}
// 当自己的frame改变的时候就会调用
- (void)layoutSubviews
{
    [super layoutSubviews];
    // 给divide设置位置
    CGFloat divideH = ;
    CGFloat divideW = self.bounds.size.width;
    CGFloat divideY = self.bounds.size.height - divideH;
    self.divide.frame = CGRectMake(, divideY, divideW, divideH);

}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}

@end

************联系人的cell的界面 HMContactCell.h

#import <UIKit/UIKit.h>
@class HMContact;
@interface HMContactCell : UITableViewCell

@property (nonatomic, strong) HMContact *contact;

+ (instancetype)cellWithTableView:(UITableView *)tableView;

@end

************编辑的界面 HMEditViewController.m

#import "HMEditViewController.h"

#import "HMContact.h"

@interface HMEditViewController ()
@property (weak, nonatomic) IBOutlet UITextField *nameField;
@property (weak, nonatomic) IBOutlet UITextField *phoneField;
@property (weak, nonatomic) IBOutlet UIButton *saveBtn;

@end

@implementation HMEditViewController

// 点击了保存按钮
- (IBAction)save:(id)sender {
    // 1.回到联系人界面
    [self.navigationController popViewControllerAnimated:YES];
    // 2.更新数据:覆盖旧数据，把最新的数据展示出来
    self.contact.name = _nameField.text;
    self.contact.phone = _phoneField.text;

    // 3.通知联系人界面刷新表格
    if ([_delegate respondsToSelector:@selector(editViewController:didUpdateContact:)]) {
        [_delegate editViewController:self didUpdateContact:self.contact];
    }

}

// 点击了编辑按钮就会调用
- (IBAction)edit:(UIBarButtonItem *)sender {

    if ([sender.title isEqualToString:@"取消"]) { // 点击取消
        // 1.改变按钮的文字
        sender.title = @"编辑";
        // 2.不允许文本框编辑
        _nameField.enabled = NO;
        _phoneField.enabled = NO;

        // 3.隐藏保存按钮
        _saveBtn.hidden = YES;

        // 4.退出键盘
//        [_phoneField resignFirstResponder];
        [self.view endEditing:YES];

        // 恢复文本框显示
        _nameField.text = _contact.name;
        _phoneField.text = _contact.phone;

    }else // 点击编辑
    {
        // 1.改变按钮的文字
        sender.title = @"取消";
        // 2.允许文本框编辑
        _nameField.enabled = YES;
        _phoneField.enabled = YES;

        // 3.显示保存按钮
        _saveBtn.hidden = NO;

        // 4.弹出电话的键盘
        [_phoneField becomeFirstResponder];

    }

}

#pragma mark 给文本框控件赋值
- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    // 给控件赋值
    _nameField.text = _contact.name;
    _phoneField.text = _contact.phone;

    // 1.addTarget
    [_nameField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
    [_phoneField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];

    // 手动判断按钮是否能点击
    [self textChange];
}

- (void)textChange
{
    // 判断两个文本框的内容
    _saveBtn.enabled = _nameField.text.length && _phoneField.text.length;

}

@end

************编辑的界面 HMEditViewController.h

#import <UIKit/UIKit.h>

@class HMContact,HMEditViewController;

@protocol HMEditViewControllerDelegate <NSObject>

@optional
- (void)editViewController:(HMEditViewController *)edit didUpdateContact:(HMContact *)contact;

@end

@interface HMEditViewController : UIViewController

@property (nonatomic, strong) HMContact *contact;

@property (nonatomic, weak) id<HMEditViewControllerDelegate> delegate;

@end

*****联系人的model  HMContact.m

#import "HMContact.h"

@implementation HMContact

// instancetype自动识别当前类的对象 == HMContact *
+ (instancetype)contactWithName:(NSString *)name phone:(NSString *)phone
{
    HMContact *contact = [[HMContact alloc] init];

    contact.name = name;
    contact.phone = phone;

    return contact;
}

@end

******HMContact.h

#import <Foundation/Foundation.h>

@interface HMContact : NSObject

@property (nonatomic, copy) NSString *name;

@property (nonatomic, copy) NSString *phone;

+ (instancetype)contactWithName:(NSString *)name phone:(NSString *)phone;

@end