第三方:FMDB(数据库)、MBProgressHUD(提示框)
PCH文件(个工程的条件预编译的头文件)
Project.pch
#ifndef Project_pch
#define Project_pch
// Include any system framework and library headers here that should be included in all compilation units.
// You will also need to set the Prefix Header build setting of one or more of your targets to reference this file.
#import "DataBase.h"
#define My_Country @"中国"
#import "MBProgressHUD.h"
#import "User.h"
#endif /* Project_pch */
AppDelegate.m
#import "AppDelegate.h"
#import "ShowViewController.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
ShowViewController *showVc = [[ShowViewController alloc]init];
showVc.navigationItem.title = @"全部用户";
UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:showVc];
self.window.rootViewController = nav;
return YES;
}
业务类:DataBase(文件)
DataBase.h
#import
//协议
@protocol DataBase
///添加
- (BOOL)addNew:(id)newObj;
///删除
- (BOOL)deleteOne:(id)deleteobj;
///修改
- (BOOL)updataOne:(id)upObj;
///获取所有
- (id)getAllObjects;
///是否重复
@optional
- (BOOL)objExist:(id)obj;
@end
PlistDataBase.h
#import
@interface PlistDataBase : NSObject
@end
PlistDataBase.m
#import "PlistDataBase.h"
#import "User.h"
@implementation PlistDataBase
//私有方法,持久化数据的文件的路径设置
- (NSString *)filePath
{
//获取沙盒中Documents目录的路径的字符串
NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)lastObject];
NSLog(@"%@",documentsPath);
//设置持久化文件的路径
NSString *fPath = [documentsPath stringByAppendingPathComponent:@"users.plist"];
return fPath;
}
///添加
- (BOOL)addNew:(User *)newObj
{
//首次添加,持久化文件不存在,数据库为空
if (![[NSFileManager defaultManager] fileExistsAtPath:[self filePath]])
{
//用序列化类将Oc的自定义对象转换为二进制
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:newObj];
NSArray *arr = @[data];
[arr writeToFile:[self filePath] atomically:YES];
return YES;
}
//文件存在,数组的元素为空
NSMutableArray *arr = [[NSMutableArray alloc]initWithContentsOfFile:[self filePath]];
//数组元素为空
if (arr.count == 0)
{
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:newObj];
[arr addObject:data];
[arr writeToFile:[self filePath] atomically:YES];
return YES;
}
//数组元素不为空,须判断手机号是不是存在,存在不可添加,不存在可以添加
if ([self objExist:newObj])
{
return NO;
}
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:newObj];
[arr addObject:data];
[arr writeToFile:[self filePath] atomically:YES];
return YES;
}
///删除
- (BOOL)deleteOne:(User *)deleteobj
{
//从文件中读取所有的二进制对象数据,存入数组中
NSMutableArray *arr = [[NSMutableArray alloc]initWithContentsOfFile:[self filePath]];
//将参数User *对象转换为NSData数据
NSData *deletdata = [NSKeyedArchiver archivedDataWithRootObject:deleteobj];
//从数组中删除该数据
[arr removeObject:deletdata];
//数组重新写入文件
[arr writeToFile:[self filePath] atomically:YES];
return YES;
}
///修改
- (BOOL)updataOne:(User *)upObj
{
//获取持久化的数据
NSMutableArray *arr = [[NSMutableArray alloc]initWithContentsOfFile:[self filePath]];
NSInteger index = [self getObjIndexByPhone:upObj.phone];
[arr replaceObjectAtIndex:index withObject:[NSKeyedArchiver archivedDataWithRootObject:upObj]];
return [arr writeToFile:[self filePath] atomically:YES];
}
///获取所有
- (id)getAllObjects
{
//文件不存在
if (![[NSFileManager defaultManager]fileExistsAtPath:[self filePath]])
{
return nil;
}
//文件存在,从文件中读出数组
NSArray *arr = [[NSArray alloc]initWithContentsOfFile:[self filePath]];
//把二进制的数组用对象的数组返回使用
NSMutableArray *userArr = [[NSMutableArray alloc]init];
for (NSData *data in arr)
{
User *u = [NSKeyedUnarchiver unarchiveObjectWithData:data];
[userArr addObject:u];
}
return userArr;
}
#pragma mark - 私有方法
///是否重复
- (BOOL)objExist:(User *)obj
{
//读出文件中的所有数据
NSArray *arr = [[NSArray alloc]initWithContentsOfFile:[self filePath]];
for (NSData *data in arr)
{
//使用反序列化类将二进制数据转换为User对象
User *u = [NSKeyedUnarchiver unarchiveObjectWithData:data];
if ([u.phone isEqualToString:obj.phone])
{
return YES;
}
}
return NO;
}
/// 通过User对象的唯一手机号,找到该对象在数组中的下标
- (NSInteger)getObjIndexByPhone:(NSString *)phone
{
NSArray *arr = [[NSArray alloc]initWithContentsOfFile:[self filePath]];
for (int i = 0;iSQLiteDataBase.h
#import
@interface SQLiteDataBase : NSObject
- (BOOL)creatTableByName:(NSString *)name;
+(instancetype)defaultDataBase;
@end
SQLiteDataBase.m
#import "SQLiteDataBase.h"
#import
#define USER_PATH @"users.db" //数据库文件的名称
static SQLiteDataBase *_dataBase = nil;
//延展
@interface SQLiteDataBase()
{
sqlite3 *_db; // 操作数据库内存的指针
NSString *_tableName; //表名字符串
}
@end
@implementation SQLiteDataBase
#pragma mark -单例类的方法
//重写allocWithZone方法,让外部文件使用alloc方法创建对象时,只得到一块内存空间
+ (instancetype)allocWithZone:(struct _NSZone *)zone
{
if (_dataBase == nil)
{
_dataBase = [super allocWithZone:zone];
}
return _dataBase;
}
+(instancetype)defaultDataBase
{
if (_dataBase == nil)
{
_dataBase = [[SQLiteDataBase alloc]init];
}
return _dataBase;
}
- (id)copy
{
return self;
}
- (id)mutableCopy
{
return self;
}
#pragma mark - 私有方法
//打开数据库
- (BOOL)openDB:(NSString *)dbPath
{
//打开数据库
//如果数据库文件不存在,先创建再打开,如果存在,直接打开
//参数1 - 持久化文件的路径字符串
NSString *fPath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)lastObject]stringByAppendingPathComponent:dbPath];
NSLog(@"db文件%@",fPath);
int res = sqlite3_open(fPath.UTF8String, &_db);
if (res == SQLITE_OK)
{
return YES;
}
else
return NO;
}
///关闭数据库
- (void)closeDB
{
sqlite3_close(_db);
}
///创建一个数据表
- (BOOL)creatTableByName:(NSString *)name
{
_tableName = name;
BOOL success = [self openDB:USER_PATH];
if (!success) {
[self closeDB];
return NO;
}
//执行创建数据表操作
// 1)先做一个sql语句
//UNIQUE 唯一约束 PRIMARY KEY 主键自增
NSString *sql = [NSString stringWithFormat:@"CREATE TABLE %@ (id INTEGER PRIMARY KEY AUTOINCREMENT,phone TEXT UNIQUE,name TEXT,password TEXT)",name];
//2)定义一个预编译指针,用于存储编译结果
sqlite3_stmt *statement = NULL;
//3)执行编译操作,将sql语句转换为机器可以读懂的机器码
sqlite3_prepare_v2(_db, sql.UTF8String, -1, &statement,NULL);
//4)执行编译结果
int res = sqlite3_step(statement);
//5)释放预编译指针指向的内存
sqlite3_finalize(statement);
//关闭数据库
[self closeDB];
return res == SQLITE_DONE ? YES :NO;
}
#pragma mark - 对外公开的方法
///添加
- (BOOL)addNew:(User *)newObj
{
if (![self openDB:USER_PATH])
{
[self closeDB];
return NO;
}
// 1)先做一个sql语句
NSString *sql = [NSString stringWithFormat:@"INSERT INTO %@ (phone,name,password) VALUES (?,?,?)",_tableName];
//2)定义一个预编译指针,用于存储编译结果
sqlite3_stmt *statement = NULL;
//3)执行编译操作,将sql语句转换为机器可以读懂的机器码
sqlite3_prepare_v2(_db, sql.UTF8String, -1, &statement,NULL);
//4)绑定?号
//参数1 - 预编译指针变量
//参数2 - 第几个问号
//参数3 - 绑定的数据
//参数4 - 读取绑定数据的前几个字符,-1表示全部内容
//参数5 - 短暂,固定两个选择
sqlite3_bind_text(statement, 1, newObj.phone.UTF8String, -1, SQLITE_TRANSIENT);
sqlite3_bind_text(statement, 2, newObj.name.UTF8String, -1, SQLITE_TRANSIENT);
sqlite3_bind_text(statement, 3, newObj.password.UTF8String, -1, SQLITE_TRANSIENT);
//4)执行编译结果
int res = sqlite3_step(statement);
//5)释放预编译指针指向的内存
sqlite3_finalize(statement);
//关闭数据库
[self closeDB];
return res == SQLITE_DONE ? YES :NO;
}
///删除
- (BOOL)deleteOne:(User *)deleteobj
{
if (![self openDB:USER_PATH])
{
[self closeDB];
return NO;
}
NSString *sql = [NSString stringWithFormat:@"DELETE FROM %@ WHERE id = ?",_tableName];
//2)定义一个预编译指针,用于存储编译结果
sqlite3_stmt *statement = NULL;
//3)执行编译操作,将sql语句转换为机器可以读懂的机器码
sqlite3_prepare_v2(_db, sql.UTF8String, -1, &statement,NULL);
sqlite3_bind_int(statement, 1, (int)deleteobj.ID);
//4)执行编译结果
int res = sqlite3_step(statement);
//5)释放预编译指针指向的内存
sqlite3_finalize(statement);
//关闭数据库
[self closeDB];
return res == SQLITE_DONE ? YES :NO;
}
///修改
- (BOOL)updataOne:(User *)upObj
{
if (![self openDB:USER_PATH])
{
[self closeDB];
return NO;
}
NSString *sql = [NSString stringWithFormat:@"UPDATE %@ SET name = ?,password = ? WHERE id = ?",_tableName];
//2)定义一个预编译指针,用于存储编译结果
sqlite3_stmt *statement = NULL;
//3)执行编译操作,将sql语句转换为机器可以读懂的机器码
sqlite3_prepare_v2(_db, sql.UTF8String, -1, &statement,NULL);
sqlite3_bind_text(statement, 1, upObj.name.UTF8String, -1, SQLITE_TRANSIENT);
sqlite3_bind_text(statement, 2, upObj.password.UTF8String,-1, SQLITE_TRANSIENT);
sqlite3_bind_int(statement, 3, (int)upObj.ID);
//4)执行编译结果
int res = sqlite3_step(statement);
//5)释放预编译指针指向的内存
sqlite3_finalize(statement);
//关闭数据库
[self closeDB];
return res == SQLITE_DONE ? YES :NO;
}
///获取所有
- (id)getAllObjects
{
if (![self openDB:USER_PATH])
{
[self closeDB];
return nil;
}
// 1)先做一个sql语句
NSString *sql = [NSString stringWithFormat:@"SELECT *FROM %@",_tableName];
//2)定义一个预编译指针,用于存储编译结果
sqlite3_stmt *statement = NULL;
//3)执行编译操作,将sql语句转换为机器可以读懂的机器码
sqlite3_prepare_v2(_db, sql.UTF8String, -1, &statement,NULL);
//4)每行每行的读取数据
NSMutableArray *arr = [[NSMutableArray alloc]init];
while (sqlite3_step(statement) == SQLITE_ROW)
{
int ID = sqlite3_column_int(statement, 0);
const char *phone = (const char *)sqlite3_column_text(statement, 1);
const char *name = (const char *)sqlite3_column_text(statement, 2);
const char *pwd = (const char *)sqlite3_column_text(statement, 3);
User *u = [[User alloc]init];
u.ID = ID;
u.phone = [NSString stringWithUTF8String:phone];
u.name = [NSString stringWithUTF8String:name];
u.password = [NSString stringWithUTF8String:pwd];
[arr addObject:u];
}
//5)释放预编译指针指向的内存
sqlite3_finalize(statement);
//关闭数据库
[self closeDB];
return arr;
}
@end
CoreDataBase.h
#import
@interface CoreDataBase : NSObject
@end
CoreDataBase.m
#import "CoreDataBase.h"
#import "User.h"
#import "AppDelegate.h"
#import "UserEntity+CoreDataClass.h"
@interface CoreDataBase ()
{
AppDelegate *_app;
}
@end
@implementation CoreDataBase
- (instancetype)init
{
self = [super init];
if (self)
{
_app = (AppDelegate *)[UIApplication sharedApplication].delegate;
}
return self;
}
///添加
- (BOOL)addNew:(User *)newObj
{
if ([self objExist:newObj])
{
return NO;
}
UserEntity *user = [NSEntityDescription insertNewObjectForEntityForName:NSStringFromClass([UserEntity class]) inManagedObjectContext:_app.persistentContainer.viewContext];
user.id = (int)newObj.ID;
user.name = newObj.name;
user.phone = newObj.phone;
user.password = newObj.password;
//执行保存
NSError *error = nil;
BOOL res = [_app.persistentContainer.viewContext save:&error];
if (error != nil)
{
NSLog(@"error %@",error);
}
return res;
}
///删除
- (BOOL)deleteOne:(User *)deleteobj
{
//设置要抓取的实体对象
NSEntityDescription *entity = [NSEntityDescription entityForName:NSStringFromClass([UserEntity class]) inManagedObjectContext:_app.persistentContainer.viewContext];
//实例化抓取对象
NSFetchRequest *request = [[NSFetchRequest alloc]init];
[request setEntity:entity];
//开始抓取
NSArray *arr = [_app.persistentContainer.viewContext executeFetchRequest:request error:nil];
UserEntity *deleEntity = nil;
for (UserEntity *u in arr)
{
if (u.id == deleteobj.ID &&[u.name isEqualToString:deleteobj.name]&& [u.password isEqualToString:deleteobj.password]&&[u.phone isEqualToString:deleteobj.phone])
{
deleEntity = u;
break;
}
}
[_app.persistentContainer.viewContext deleteObject:deleEntity];
return [_app.persistentContainer.viewContext save:nil];
}
///修改
- (BOOL)updataOne:(User *)upObj
{
//设置要抓取的实体对象
NSEntityDescription *entity = [NSEntityDescription entityForName:NSStringFromClass([UserEntity class]) inManagedObjectContext:_app.persistentContainer.viewContext];
//实例化抓取对象
NSFetchRequest *request = [[NSFetchRequest alloc]init];
[request setEntity:entity];
//开始抓取
NSArray *arr = [_app.persistentContainer.viewContext executeFetchRequest:request error:nil];
BOOL res = NO;
for (UserEntity *u in arr)
{
if ([u.phone isEqualToString:upObj.phone])
{
u.name = upObj.name;
u.password = upObj.password;
u.id = (int)upObj.ID;
res = [_app.persistentContainer.viewContext save:nil];
break;
}
}
return res;
}
///获取所有
- (id)getAllObjects
{
//设置要抓取的实体对象
NSEntityDescription *entity = [NSEntityDescription entityForName:NSStringFromClass([UserEntity class]) inManagedObjectContext:_app.persistentContainer.viewContext];
//实例化抓取对象
NSFetchRequest *request = [[NSFetchRequest alloc]init];
[request setEntity:entity];
//开始抓取
NSArray *arr = [_app.persistentContainer.viewContext executeFetchRequest:request error:nil];
NSMutableArray *usersArr = [[NSMutableArray alloc]init];
for (UserEntity *u in arr)
{
User *user = [[User alloc]init];
user.ID = u.id;
user.name = u.name;
user.phone = u.phone;
user.password = u.password;
[usersArr insertObject:user atIndex:0];
}
return usersArr;
}
///是否重复
- (BOOL)objExist:(User *)obj
{
//设置要抓取的实体对象
NSEntityDescription *entity = [NSEntityDescription entityForName:NSStringFromClass([UserEntity class]) inManagedObjectContext:_app.persistentContainer.viewContext];
//实例化抓取对象
NSFetchRequest *request = [[NSFetchRequest alloc]init];
[request setEntity:entity];
//开始抓取
NSArray *arr = [_app.persistentContainer.viewContext executeFetchRequest:request error:nil];
for (UserEntity *u in arr)
{
if ([u.phone isEqualToString:obj.phone])
{
return YES;
}
}
return NO;
}
@end
FMDataBase.h
#import
@interface FMDataBase : NSObject
//声明类方法,让外部类获取该单例类的内存
+ (instancetype)defaultDB;
@end
FMDataBase.m
#import "FMDataBase.h"
#import "FMDB.h"
#import "User.h"
static FMDataBase *_staticFMDB = nil;
//延展
@interface FMDataBase ()
@property (nonatomic,strong)FMDatabase *db;
@end
@implementation FMDataBase
#pragma mark - 单例类方法
//单例类
+ (instancetype)defaultDB
{
if (_staticFMDB == nil)
{
_staticFMDB = [[FMDataBase alloc]init];
}
return _staticFMDB;
}
//重写allocWithZone:方法,防止alloc生成新内存,方法返回的还是同一个对象
+ (instancetype)allocWithZone:(struct _NSZone *)zone
{
if (!_staticFMDB)
{
_staticFMDB = [super allocWithZone:zone];
}
return _staticFMDB;
}
//重写copy,mutableCopy方法,防止在外部类中使用copy,mutableCopy时运行崩溃,同时也防止新内存生成
- (id)copy
{
return self;
}
- (id)mutableCopy
{
return self;
}
#pragma mark - init方法重写
- (instancetype)init
{
self = [super init];
if (self) {
[self createDB];
[self initTable];
}
return self;
}
#pragma Mark - 创建数据库和数据表
//创建数据库
- (void)createDB
{
//设置持久化文件的路径
NSString *path = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)lastObject ]stringByAppendingPathComponent:@"datas.db"];
self.db = [FMDatabase databaseWithPath:path];
}
//创建数据表
- (void)initTable
{
if(![self.db open])
{
[self.db close];
return;
}
[self.db executeUpdate:@"CREATE TABLE users (id INTEGER PRIMARY KEY AUTOINCREMENT,name TEXT,password TEXT,phone TEXT UNIQUE)"];
[self.db close];
}
#pragma mark - 控制器调用方法
///添加
- (BOOL)addNew:(User *)newObj{
if (![self.db open])
{
[self.db close];
return NO;
}
BOOL success = [self.db executeUpdateWithFormat:@"INSERT INTO users (name,password,phone) VALUES (%@,%@,%@)",newObj.name,newObj.password,newObj.phone];
[self.db close];
return success;
}
///删除
- (BOOL)deleteOne:(User *)deleteobj{
if (![self.db open])
{
[self.db close];
return NO;
}
BOOL success = [self.db executeUpdateWithFormat:@"DELETE FROM users WHERE id = %d" ,(int)deleteobj.ID];
[self.db close];
return success;
}
///修改
- (BOOL)updataOne:(User *)upObj{
if (![self.db open])
{
[self.db close];
return NO;
}
BOOL success = [self.db executeUpdateWithFormat:@"UPDATE users SET name = %@,password = %@ WHERE id = %ld",upObj.name,upObj.password,upObj.ID];
[self.db close];
return success;
}
///获取所有
- (id)getAllObjects{
if (![self.db open])
{
[self.db close];
return nil;
}
FMResultSet * set = [self.db executeQuery:@"SELECT * FROM users"];
NSMutableArray *arr = [[NSMutableArray alloc]init];
while ([set next])
{
User *u = [[User alloc]init];
u.ID = [set intForColumnIndex:0];
u.name = [set stringForColumnIndex:1];
u.password = [set stringForColumnIndex:2];
u.phone = [set stringForColumnIndex:3];
//[arr addObject:u];
[arr insertObject:u atIndex:0];
}
[self.db close];
return arr;
}
@end
模型类:Model(文件)
User.h
#import
@interface User : NSObject
@property (nonatomic,strong)NSString *phone;
@property (nonatomic,strong)NSString *password;
@property (nonatomic,strong)NSString *name;
@property (nonatomic,assign)NSInteger ID;
@end
User.m
#import "User.h"
@implementation User
#pragma marl - NSCoder
//归档操作的两个必须实现的方法
//把对象的每个属性做成二进制数据
- (void)encodeWithCoder:(NSCoder *)aCoder
{
[aCoder encodeObject:self.phone forKey:@"phone"];
[aCoder encodeObject:self.password forKey:@"pwd"];
[aCoder encodeObject:self.name forKey:@"name"];
}
//通过key将对象的每一个属性由二进制转换为Oc类型
-(instancetype)initWithCoder:(NSCoder *)aDecoder
{
self = [super init];
if (self)
{
self.phone = [aDecoder decodeObjectForKey:@"phone"];
self.password = [aDecoder decodeObjectForKey:@"pwd"];
self.name = [aDecoder decodeObjectForKey:@"name"];
}
return self;
}
#pragma mark - NSCopy
//方法1 无需协议
- (id)copy
{
User *u = [[User alloc]init];
u.phone = self.phone;
u.name = self.name;
u.password = self.password;
u.ID = self.ID;
return u;
}
//方法2
//浅复制
- (id)copyWithZone:(NSZone *)zone
{
return self;
}
@end
控制器类:Controller(文件)
ShowViewController.h
#import
@interface ShowViewController : UIViewController
@end
ShowViewController.m
#import "ShowViewController.h"
#import "AddViewController.h"
#import "PlistDataBase.h"
#import "User.h"
#import "DetailViewController.h"
#import "SQLiteDataBase.h"
#import "FMDataBase.h"
#import "CoreDataBase.h"
@interface ShowViewController ()
{
NSMutableArray *_tableDataArr; //表格赋值数组
}
@property (nonatomic,strong)UITableView *tableView;
@property (nonatomic,strong)AddViewController *addVc;
@property (nonatomic,strong)DetailViewController *detailVc;
@property (nonatomic,strong)id db; //数据库对象
@end
@implementation ShowViewController
#pragma mark - 懒加载 ,属性getter重写
- (UITableView *)tableView
{
if (!_tableView)
{
_tableView = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];
_tableView.delegate =self;
_tableView.dataSource = self;
}
return _tableView;
}
- (AddViewController *)addVc
{
if (!_addVc)
{
_addVc = [[AddViewController alloc]init];
}
return _addVc;
}
- (DetailViewController *)detailVc
{
if (!_detailVc)
{
_detailVc = [[DetailViewController alloc]init];
}
return _detailVc;
}
- (id)db
{
if (!_db)
{
//策略模式
//_db = [[PlistDataBase alloc]init];
// _db = [[SQLiteDataBase alloc]init];
// [_db creatTableByName:@"users"];
//_db = [[FMDataBase alloc]init];
_db = [[CoreDataBase alloc]init];
}
return _db;
}
//添加子视图
- (void)loadView
{
[super loadView];
//
NSLog(@"%@",NSStringFromSelector(_cmd));
[self.view addSubview:self.tableView];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addDidHandle:)];
}
- (void)addDidHandle:(id)sender
{
[self.navigationController pushViewController:self.addVc animated:YES];
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
NSLog(@"%@",NSStringFromSelector(_cmd));
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
_tableDataArr = [self.db getAllObjects];
[self.tableView reloadData];
}
#pragma mark - UITableViewDataSource
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _tableDataArr.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *identifer = @"CELL";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifer];
if (!cell)
{
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifer];
}
User *u = _tableDataArr[indexPath.row];
cell.textLabel.text = u.phone;
cell.detailTextLabel.text = [NSString stringWithFormat:@"ID:%ld名字:%@密码:%@",u.ID,u.name,u.password];
return cell;
}
-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
//删除底层数据
[self.db deleteOne:_tableDataArr[indexPath.row]];
//删除给表格赋值的数组中相对应的数据
[_tableDataArr removeObjectAtIndex:indexPath.row];
//删除单元格
[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
[self.tableView reloadData];
}
}
#pragma mark----UITableViewDelegate----
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
self.detailVc.passUser = _tableDataArr[indexPath.row];
[self.navigationController pushViewController:self.detailVc animated:YES];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
AddViewController.h
#import
@interface AddViewController : UIViewController
@property (weak, nonatomic) IBOutlet UITextField *phoneTF;
@property (weak, nonatomic) IBOutlet UITextField *pwdTF;
@property (weak, nonatomic) IBOutlet UITextField *nameTF;
- (IBAction)saveHandle:(id)sender;
@end
AddViewController.m
#import "AddViewController.h"
#import "User.h"
#import "PlistDataBase.h"
#import "SQLiteDataBase.h"
#import "FMDataBase.h"
#import "CoreDataBase.h"
@interface AddViewController ()
{
MBProgressHUD *_hud;
}
@end
@implementation AddViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
_hud = [[MBProgressHUD alloc]init];
[self.view addSubview:_hud];
[_hud hide:YES];
}
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
self.phoneTF.text = @"";
self.pwdTF.text = @"";
self.nameTF.text= @"";
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)saveHandle:(id)sender {
if (self.phoneTF.text.length == 0 || self.pwdTF.text.length == 0 || self.nameTF.text.length == 0)
{
//设置弹出框的样式
_hud.mode = MBProgressHUDModeText;
//设置提示文本
_hud.labelText = @"输入的内容不能为空";
//显示
[_hud show:YES];
//2秒后隐藏
[_hud hide:YES afterDelay:2.0];
return;
}
//id db = [[PlistDataBase alloc]init];
// id db = [[SQLiteDataBase alloc]init];
//id db = [[FMDataBase alloc]init];
id db = [[CoreDataBase alloc]init];
User *u = [[User alloc]init];
u.phone = self.phoneTF.text;
u.password = self.pwdTF.text;
u.name = self.nameTF.text;
BOOL success = [db addNew:u];
if (success) {
//设置弹出框的样式
_hud.mode = MBProgressHUDModeText;
//设置提示文本
_hud.labelText = @"添加成功!";
//显示
[_hud show:YES];
[self performSelector:@selector(back:) withObject:nil afterDelay:2.0];
}
else
{
//设置弹出框的样式
_hud.mode = MBProgressHUDModeText;
//设置提示文本
_hud.labelText = @"用户已存在!";
//显示
[_hud show:YES];
//2秒后隐藏
[_hud hide:YES afterDelay:2.0];
}
}
- (void)back:(id)sender
{
if (_hud.isHidden == NO)
{
[_hud hide:YES];
}
[self.navigationController popViewControllerAnimated:YES];
}
@end
AddViewController.xib
屏幕快照 2017-09-10 20.59.20.png
DetailViewController.h
#import
@interface DetailViewController : UIViewController
@property (nonatomic,strong)User *passUser;
@end
DetailViewController.m
#import "DetailViewController.h"
#import "PlistDataBase.h"
#import "SQLiteDataBase.h"
#import "FMDataBase.h"
#import "CoreDataBase.h"
@interface DetailViewController ()
@property (weak, nonatomic) IBOutlet UITextField *phoneTF;
@property (weak, nonatomic) IBOutlet UITextField *pwdTF;
@property (weak, nonatomic) IBOutlet UITextField *nameTF;
- (IBAction)updataHandle:(id)sender;
@end
@implementation DetailViewController
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
self.phoneTF.text = self.passUser.phone;
self.pwdTF.text= self.passUser.password;
self.nameTF.text = self.passUser.name;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)updataHandle:(id)sender {
// User *newU = [[User alloc]init];
//
// newU.ID = self.passUser.ID;
// newU.phone = self.passUser.phone;
// newU.password = self.pwdTF.text;
// newU.name = self.nameTF.text;
//这句话实现与上面4句代码等效的结果
User *newU = [self.passUser copy];
newU.password = self.pwdTF.text;
newU.name = self.nameTF.text;
//PlistDataBase *db = [[PlistDataBase alloc]init];
// SQLiteDataBase *db = [[SQLiteDataBase alloc]init];
//FMDataBase *db = [[FMDataBase alloc]init];
CoreDataBase *db = [[CoreDataBase alloc]init];
BOOL success = [db updataOne:newU];
MBProgressHUD *hud = [[MBProgressHUD alloc]initWithView:self.view];
[self.view addSubview:hud];
hud.removeFromSuperViewOnHide = YES;
hud.mode = MBProgressHUDModeText;
hud.labelText = success ? @"更新成功" :@"更新失败";
[hud show:YES];
[hud hide:YES afterDelay:2.0];
}
@end
DetailViewController.xib
屏幕快照 2017-09-10 20.59.20.png