【案列】私人通讯录01

最新推荐文章于 2016-03-19 20:57:07 发布

学习笔记666

最新推荐文章于 2016-03-19 20:57:07 发布

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分类专栏： iOS学习—UI部分

本文链接：https://blog.youkuaiyun.com/github_26672553/article/details/50926246

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1.登录界面

//
//  ViewController.m


#import "ViewController.h"
#import "MBProgressHUD+MJ.h"

@interface ViewController () <UITextFieldDelegate>
@property (weak, nonatomic) IBOutlet UITextField *accountField;
@property (weak, nonatomic) IBOutlet UITextField *pwdField;
@property (weak, nonatomic) IBOutlet UIButton *loginBtn;

@property (weak, nonatomic) IBOutlet UISwitch *rmbPwdSwitch;
@property (weak, nonatomic) IBOutlet UISwitch *autoLoginSwitch;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // 给文本框添加监听
    [self.accountField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
    [self.pwdField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
    
    // 判断登录按钮是否可以点击
    [self textChange];
}

/**
 *  segue跳转之前调用
 */
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // 传值给目标控制器
    UIViewController *vc = segue.destinationViewController;
    vc.title = [NSString stringWithFormat:@"%@的联系人",self.accountField.text];
}

/**
 *  登录操作
 */
- (IBAction)loginBtnAction:(UIButton *)sender
{
    // 添加蒙版
    [MBProgressHUD showMessage:@"正在登录..."];
    
    
    // 模拟请求网络
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        
        // 隐藏蒙版
        [MBProgressHUD hideHUD];
        
        // 验证帐号密码
        if ([self.accountField.text isEqualToString:@"name"] && [self.pwdField.text isEqualToString:@"123"]) {
            // 跳转到联系人界面
            [self performSegueWithIdentifier:@"login2contact" sender:nil];
        }else{
            // 帐号或者密码错误
            [MBProgressHUD showError:@"帐号或者密码错误"];
        }
    });

}

/**
 *  记住密码开关状态改变的时候调用
 */
- (IBAction)rmbPwdChnage:(UISwitch *)sender
{
    // 如果取消记住密码，自动登录也需要取消选中
    if (self.rmbPwdSwitch.on == NO) {
        [self.autoLoginSwitch setOn:NO animated:YES];
    }
}

/**
 *  自动登录开关状态改变的时候调用
 */
- (IBAction)autoLoginChnage:(UISwitch *)sender
{
    // 如果选中了自动登录，那么记住密码也要选中
    if (self.autoLoginSwitch.on == YES) {
        [self.rmbPwdSwitch setOn:YES animated:YES];
    }
}



/**
 *  文本框内容改变了
 */
- (void)textChange
{
    self.loginBtn.enabled = self.accountField.text.length && self.pwdField.text.length;
}

@end

2.联系人

注意联系人界面是从登录界面控制器segue过来的，并不是从『登录按钮』直接segue过来的

//
//  ContactViewController.m


#import "ContactViewController.h"
#import "AddViewController.h"
#import "Contact.h"
#import "EditViewController.h"

@interface ContactViewController ()<AddViewControllerDelegate>

/**
 *  保存Contact模型对象的数组
 */
@property(nonatomic,strong)NSMutableArray *contacts;

@end

@implementation ContactViewController

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

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // 取消分割线
//    self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    
    // tableView有数据的时候才需要分割线
    self.tableView.tableFooterView = [[UIView alloc] init];
}

/**
 *  segue跳转之前会调用
 */
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // 给添加控制器传递联系人控制器属性
    AddViewController *addVC = segue.destinationViewController;
    addVC.delegate = self;
}

#pragma mark - AddViewControllerDelegate
- (void)addViewController:(AddViewController *)addVC didClickAddBtnWithContact:(Contact *)contact
{
    // 把联系人模型保存到数组里面
    [self.contacts addObject:contact];
    
    // 刷新表格
    [self.tableView reloadData];
}


/**
 *  点击注销的时候会调用
 */
- (IBAction)logout:(UIBarButtonItem *)sender
{
    // alert控制器
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"是否要注销" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
    [alert addAction:[UIAlertAction actionWithTitle:@"注销" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
        // 注销
        [self.navigationController popViewControllerAnimated:YES];
    }]];
    [alert addAction:[UIAlertAction actionWithTitle:@"不" style:UIAlertActionStyleCancel handler:nil]];
    
    // 弹出
    [self presentViewController:alert animated:YES completion:nil];
}


#pragma mark - Table view data source

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.contacts.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    // 创建cell
    static NSString *ID = @"cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:ID];
    }
    
    // 配置cell
    Contact *c = self.contacts[indexPath.row];
    cell.textLabel.text = c.name;
    cell.detailTextLabel.text = c.phone;
    
    return cell;
}

#pragma mark - tabviewdelegate

/**
 *  点击cell的时候调用
 */
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    // 加载stroryborad(我们这里从storyboard创建控制器)
    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    
    // 创建编辑控制器
    // "edit"标识符 在Main.storyboard
    EditViewController *edit = [sb instantiateViewControllerWithIdentifier:@"edit"];
    
    edit.contact = self.contacts[indexPath.row];
    
    // 设置block 要执行的
    edit.block = ^(Contact *contact){
        [self.contacts replaceObjectAtIndex:indexPath.row withObject:contact];
        
        // 刷新表格
        [self.tableView reloadData];
    };
    
    
    // 跳转到编辑界面
    [self.navigationController pushViewController:edit animated:YES];
}



@end

联系人模型：

//
//  Contact.h


#import <Foundation/Foundation.h>

@interface Contact : NSObject

@property(nonatomic,strong)NSString *name;
@property(nonatomic,strong)NSString *phone;

/**
 *  快速返回一个联系人模型对象
 */
+ (instancetype)contactWithName:(NSString *)name phone:(NSString *)phone;

@end

//
//  Contact.m


#import "Contact.h"

@implementation Contact

+ (instancetype)contactWithName:(NSString *)name phone:(NSString *)phone
{
    Contact *c = [[self alloc] init];
    c.name = name;
    c.phone = phone;
    
    return c;
}

@end

3.添加联系人

//
//  AddViewController.h


#import <UIKit/UIKit.h>

// 代理
@class AddViewController,Contact;

@protocol AddViewControllerDelegate <NSObject>

@optional
- (void)addViewController:(AddViewController *)addVC didClickAddBtnWithContact:(Contact *)contact;

@end

@interface AddViewController : UIViewController

// 代理属性
@property(nonatomic,weak) id<AddViewControllerDelegate> delegate;

@end

//
//  AddViewController.m


#import "AddViewController.h"
#import "Contact.h"
#import "ContactViewController.h"

@interface AddViewController ()

@property (weak, nonatomic) IBOutlet UITextField *nameField;
@property (weak, nonatomic) IBOutlet UITextField *phoneField;
@property (weak, nonatomic) IBOutlet UIButton *addBtn;

@end

@implementation AddViewController
- (IBAction)addBtnAction:(UIButton *)sender
{
    // 1.把姓名和电话包装成Contact模型对象
    Contact *c = [Contact contactWithName:self.nameField.text phone:self.phoneField.text];
    
    // 2.通知代理
    if ([self.delegate respondsToSelector:@selector(addViewController:didClickAddBtnWithContact:)]) {
        [self.delegate addViewController:self didClickAddBtnWithContact:c];
    }
    
    // 3.跳转回 联系人控制器
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // 给文本框添加监听
    [self.nameField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
    [self.phoneField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
}

- (void)viewDidAppear:(BOOL)animated
{
    // 姓名文本框成为第一响应者(会弹出键盘)
    [self.nameField becomeFirstResponder];
}

/**
 *  文本框内容改变了
 */
- (void)textChange
{
    self.addBtn.enabled = self.nameField.text.length && self.phoneField.text.length;
}

@end

3.编辑联系人

编辑完成需要讲新的联系人数据传递给联系人控制器，我们这里没有想添加联系人控制器一下使用代理，而是换了一种方法block。2种方法都可以实现。

(注意我们编辑界面也在storyboard里，设置了标识符"edit")

//
//  EditViewController.h


#import <UIKit/UIKit.h>

@class Contact;

// 定义block
typedef void(^EditViewControllerBlock)(Contact *contact);

@interface EditViewController : UIViewController

// block属性
@property(nonatomic,strong) EditViewControllerBlock block;

/**
 *  联系人模型对象
 */
@property(nonatomic,strong) Contact *contact;

@end

//
//  EditViewController.m


#import "EditViewController.h"
#import "Contact.h"

@interface EditViewController ()
@property (weak, nonatomic) IBOutlet UITextField *nameField;
@property (weak, nonatomic) IBOutlet UITextField *phoneField;

@property (weak, nonatomic) IBOutlet UIButton *saveBtn;
@end

@implementation EditViewController

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

/**
 *  保存操作
 */
- (IBAction)saveBtnAction:(UIButton *)sender
{
    // 把文本框的值包装成联系人模型
    Contact *c = [Contact contactWithName:self.nameField.text phone:self.phoneField.text];
    
    // 通知联系人控制修改了模型数据，刷新表格
#warning 可以用代理和block，我们这里用block实现
    if (self.block) {
        self.block(c); //调用block
    }
    
    // 返回联系人控制器
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // 设置导航条的标题
    self.title = @"查看/编辑";
    
    // 设置导航条右边的按钮
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"编辑" style:UIBarButtonItemStyleDone target:self action:@selector(edit:)];
    
    // 给文本框设置值
    self.phoneField.text = self.contact.phone;
    self.nameField.text = self.contact.name;
    
    // 给文本框添加监听
    [self.nameField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
    [self.phoneField addTarget:self action:@selector(textChange) forControlEvents:UIControlEventEditingChanged];
}

/**
 *  文本框内容改变了
 */
- (void)textChange
{
    self.saveBtn.enabled = self.nameField.text.length && self.phoneField.text.length;
}

/**
 *  点击了"编辑"
 */
- (void)edit:(UIBarButtonItem *)item
{
    if ([item.title isEqualToString:@"编辑"]) {
        // 更改右上角按钮标题
        item.title = @"取消";
        
        self.phoneField.enabled = YES;
        self.nameField.enabled = YES;
        
        // 弹出电话文本框的内容
        [self.phoneField becomeFirstResponder];
        
        // 显示"保存"按钮
        self.saveBtn.hidden = NO;
    }else if ([item.title isEqualToString:@"取消"]){
        item.title = @"编辑";
        
        self.phoneField.enabled = NO;
        self.nameField.enabled = NO;
        
        self.saveBtn.hidden = YES;
        
        // 还原数据
        self.nameField.text = self.contact.name;
        self.phoneField.text = self.contact.phone;
        
        // 不允许编辑 键盘会自动隐藏
//        [self.view endEditing:YES];
    }
}

/*
#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