iOS-联系人应用(一)
环境:xcode6,iphone 4s simulator with iOS8.0
一、功能界面介绍
1.1 应用启动进入联系人列表页面,数据为模拟数据,来源与一个plist文件:
1.2 点击右上角当+按钮时,进入添加页面,页面跳转采用UINavigationController,该页面上左上角当取消按钮直接导航至起始页面,完成则添加数据至表格:
1.3 当点击一行时,把数据设置至添加页面,用户可编辑(后期可优化为点击一行进入详情页面,再详情页面点击编辑再进入编辑模式):
二、功能实现
2.1 首先建立一个Empty Application,建立完成后生成文件如下:
1. 再新建一个主view,用于应用加载时显示:选择cocoa touch class,命名为RootViewController,父类为UIViewController,勾选also create xib file。
说明:可选择生产的xib,在右边面板属性的第一个选项取消use auto layout关闭自动调整,再选择第四个选项卡设置size属性配置显示尺寸。
2.往界面中拖入一个tableview,xy设置0,大小设置于屏幕大小一致,打开双屏模式(右上角工具栏第二个),按住ctrl, 选择刚才的tableview拖入
RootViewController.h文件中,使得控制器拥有该tableview以便于控制:
// // RootViewController.h // ContactsView // // Created by Mike on 14-12-14. // Copyright (c) 2014年 Mike. All rights reserved. // #import <UIKit/UIKit.h> @interface RootViewController : UIViewController @property (weak, nonatomic) IBOutlet UITableView *tableView; @end
类似方法创建一个用于用户添加和编辑的界面 PersonInputViewController
3. 修改AppDelegate.m,设置应用窗口根控制器为 UINavigationController:
// // AppDelegate.m // ContactsWithInput // // Created by Mike on 14-12-13. // Copyright (c) 2014年 Mike. All rights reserved. // #import "AppDelegate.h" #import "RootViewController.h" @interface AppDelegate () @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; RootViewController *rootController = [[RootViewController alloc] init]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:rootController]; //设置rootviewcontroller为第一个控制器 //set navigation style navController.navigationBar.backgroundColor = [UIColor grayColor]; self.window.rootViewController = navController; [self.window makeKeyAndVisible]; return YES; } ...... @end
4. 修改RootViewController.m,实现tableview数据源protocol和用于编辑的delegate:
实现 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 用于告诉tableview总数据有多少航
实现 - (UITableViewCell*) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath用户返回每行cell数据
// // RootViewController.m // ContactsWithInput // // Created by Mike on 14-12-13. // Copyright (c) 2014年 Mike. All rights reserved. // #import "RootViewController.h" #import "PersonInputViewController.h" #import "Person.h" #import "PersonService.h" @interface RootViewController () <UITableViewDataSource, UITableViewDelegate, UIAlertViewDelegate> { PersonService *_personService; } @end @implementation RootViewController - (void)viewDidLoad { [super viewDidLoad]; UINavigationItem *navItem = self.navigationItem; //set navigation title navItem.title = @"所有联系人"; _personService = [[PersonService alloc] init]; //listen add btn UIBarButtonItem *addBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addPerson)]; navItem.rightBarButtonItem = addBtn; } #pragma mark - 添加联系人 - (void)addPerson{ //goto person input view PersonInputViewController *piController = [[PersonInputViewController alloc] init]; piController.personService = _personService; piController.tableView = _tableView; [self.navigationController pushViewController:piController animated:YES]; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return _personService.persons.count; } - (UITableViewCell*) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *identifier = @"ID"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:identifier]; } Person *p = _personService.persons[indexPath.row]; cell.textLabel.text = p.name; cell.detailTextLabel.text = p.phone; return cell; } #pragma mark - 点击行进入编辑模式(需要优化为先进入详情页面,再提供按钮编辑) - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { Person *p = [_personService.persons objectAtIndex:indexPath.row]; //goto person input view PersonInputViewController *piController = [[PersonInputViewController alloc] init]; piController.personService = _personService; piController.tableView = _tableView; piController.person = p; [self.navigationController pushViewController:piController animated:YES]; } #pragma make - 提交tableview编辑操作 - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if(editingStyle != UITableViewCellEditingStyleDelete) { return; } int row = indexPath.row; Person *p = _personService.persons[row]; NSString *msg = [NSString stringWithFormat:@"%@%@%@",@"确定要删除 \"", p.name, @"\" 吗?"]; UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"删除联系人" message:msg delegate:self cancelButtonTitle:@"删除" otherButtonTitles:@"取消", nil]; alert.tag = row; // 记录所需要删除的行号 [alert show]; } #pragma mark - 根据删除提示执行操作 -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { //tableview退出编辑模式 _tableView.editing = NO; if(buttonIndex != 0) { return ; } int row = alertView.tag; //删除源数据 [_personService.persons removeObjectAtIndex:row]; NSIndexPath *delIdx = [NSIndexPath indexPathForItem:row inSection:0]; [_tableView deleteRowsAtIndexPaths:@[delIdx] withRowAnimation:UITableViewRowAnimationTop]; } @end
数据来源由一个PersonService管理,用于加载数据,定义如下:
// // PersonService.h // ContactsWithEdit // // Created by Mike on 14-12-11. // Copyright (c) 2014年 Mike. All rights reserved. // #import <Foundation/Foundation.h> #import <UIKit/UIKit.h> @interface PersonService : NSObject @property(atomic, strong) NSMutableArray *persons; @end
// // PersonService.m // ContactsWithEdit // // Created by Mike on 14-12-11. // Copyright (c) 2014年 Mike. All rights reserved. // #import "PersonService.h" #import "Person.h" @interface PersonService () { } @end @implementation PersonService -(id)init { self = [super init]; if(self) { _persons = [NSMutableArray array]; NSBundle *bundle = [NSBundle mainBundle]; NSArray *perResource = [NSMutableArray arrayWithContentsOfFile:[bundle pathForResource:@"person" ofType:@"plist"]]; for(NSDictionary *pDic in perResource) { Person *p = [Person personWithName:pDic[@"name"] phone:pDic[@"phone"]]; [_persons addObject:p]; } } return self; } @end
2.2 用户添加和编辑界面设计
1. 界面很简单,两个label和两个text input,如下图:
把这两个text input连线到 PersonInputViewController.h,由于添加或者编辑后需要刷新数据源和表格,所以需要personService、tableview和person:
// // PersonInputViewController.h // ContactsWithInput // // Created by Mike on 14-12-13. // Copyright (c) 2014年 Mike. All rights reserved. // #import <UIKit/UIKit.h> #import "PersonService.h" #import "Person.h" @interface PersonInputViewController : UIViewController @property(nonatomic, strong)PersonService *personService; @property (weak, nonatomic)UITableView *tableView; //refresh tableview after insert @property(strong, nonatomic)Person *person; //obj for edit @property (weak, nonatomic) IBOutlet UITextField *nameField; // 名字输入框 @property (weak, nonatomic) IBOutlet UITextField *phoneField; // 号码输入框 @end
PersonInputViewController 初始化时创建两个按钮《取消》和《完成》,并设置监听方法,分别设置在左边和右边。当person不为空的时候,代表进入编辑模式:
// // PersonInputViewController.m // ContactsWithInput // // Created by Mike on 14-12-13. // Copyright (c) 2014年 Mike. All rights reserved. // #import "PersonInputViewController.h" @interface PersonInputViewController () @end @implementation PersonInputViewController - (void)viewDidLoad { [super viewDidLoad]; //set bar button UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithTitle:@"取消" style:UIBarButtonItemStylePlain target:self action:@selector(backRootView)]; UIBarButtonItem *saveBtn = [[UIBarButtonItem alloc] initWithTitle:@"完成" style:UIBarButtonItemStylePlain target:self action:@selector(savePerson)]; self.navigationItem.leftBarButtonItem = cancelBtn; self.navigationItem.rightBarButtonItem = saveBtn; //setter data for edit if(_person) { _nameField.text = _person.name; _phoneField.text = _person.phone; } } - (void)backRootView { [self.navigationController popViewControllerAnimated:YES]; //返回上一个view } - (void)savePerson { NSString *name = _nameField.text; NSString *phone = _phoneField.text; //remove white space name = [name stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; phone = [phone stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; if(![name isEqualToString:@""] || ![phone isEqualToString:@""]) { if(_person) { //edit _person.name = name; _person.phone = phone; //refresh tableview NSIndexPath *editIdx = [NSIndexPath indexPathForRow:[_personService.persons indexOfObject:_person] inSection:0]; [_tableView reloadRowsAtIndexPaths:@[editIdx] withRowAnimation:UITableViewRowAnimationMiddle]; }else { Person *p = [Person personWithName:name phone:phone]; [_personService.persons addObject:p]; //refresh tableview NSIndexPath *addIdx = [NSIndexPath indexPathForRow:_personService.persons.count-1 inSection:0]; [_tableView insertRowsAtIndexPaths:@[addIdx] withRowAnimation:UITableViewRowAnimationRight]; } } [self backRootView]; } @end
最后是一个实体类Person的定义:
// // Person.h // ContactsWithEdit // // Created by Mike on 14-12-10. // Copyright (c) 2014年 Mike. All rights reserved. // #import <Foundation/Foundation.h> @interface Person : NSObject +(Person*) personWithName:(NSString *)name phone:(NSString *) phone; @property(nonatomic, strong) NSString* name; @property(nonatomic, strong) NSString* phone; @end
// // Person.m // ContactsWithEdit // // Created by Mike on 14-12-10. // Copyright (c) 2014年 Mike. All rights reserved. // #import "Person.h" @implementation Person +(Person*) personWithName:(NSString *)name phone:(NSString *) phone { Person *p = [[Person alloc] init]; p.name = name; p.phone = phone; return p; } @end
工程下载地址:http://files.cnblogs.com/mikevictor07/ContactsWithInput.zip
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