哦吼吼，又研究了幾天，把FMDB這個封裝好的數(shù)據(jù)庫搞定了，寫了個簡單的例子，基于FMDB的添刪改查操作，界面很一般了，代碼可能比較亂，希望不要傷了各位的眼睛。依舊是純代碼實現(xiàn)的，沒有用到任何IB，其中添加刪除更改的操作都非常簡單，不需要做太多操作，只需要用到FMDB封裝好的executeUpdate方法就行了。搜索功能用到了UISearchDisplayController這個控件，因為以前沒有用過，研究了一天才搞定。下面對界面做簡單的說明：
整個界面使用一個UITabBarController實現(xiàn)的，一共有三個TabBarItem，第一個是通訊錄，我重寫了cell，在每一行可以顯示姓名，電話和ID。我要說明一下ID，ID最好每個人的都不要寫成一樣的，如果兩個人的姓名一樣，ID也一樣的話，在刪除一個人的時候會把兩個人的信息都刪掉。右上角是更新button，先選擇某一項，再點那個button就可以進入更新界面。下面來看更新界面：
進入更新界面，可以更新姓名和電話，ID是不可更改的，為什么呢，因為在操作數(shù)據(jù)庫的時候必須要有一個主鍵（PRIMARY KEY），作為區(qū)分每條數(shù)據(jù)的標識。注意右上角是save。下面來看添加信息的頁面，也就是第二個TabBarItem：
可以添加姓名，電話和ID，注意ID不要和其他的相同！再來看第三個TabBarItem，搜索功能，這是我新學的一個知識，用UISearchDisplayController和UISearchBar來實現(xiàn)的搜索，因為用這兩個可以達到最好的圖像效果
搜索出來的數(shù)據(jù)點擊某一行可以進入詳情：
這個頁面就簡單了，沒什么可說的了，一目了然。
下面為大家呈上代碼，首先要在AppDelegate.m文件里做修改，要放入一個UITabBar
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{? ?
?self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];? ??
// Override point for customization after application launch.? ? self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];? ??
//因為有三個tabBarItem，我把系統(tǒng)默認的viewController放在了第一個，然后再新建兩個繼承自UIViewController的類AddUserInfo和SearchInfo? ? UINavigationController *viewController = [[UINavigationController alloc]initWithRootViewController:self.viewController];? ? viewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemContacts tag:101];? ? //將viewController初始化為第一個tabBarItem? ? AddUserInfo *adduserViewController = [[AddUserInfo alloc]init];? ? adduserViewController.title = @"添加用戶信息";? ? adduserViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemTopRated tag:102];//將adduserViewController初始化為第二個tabBarItem? ? SearchInfo *searchViewController = [[SearchInfo alloc]init];? ? searchViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemSearch tag:103];? ? searchViewController.title = @"搜索信息";? ? //將searchViewController初始化為第三個tabBarItem，現(xiàn)在已經(jīng)準備了UITabBarController上的三個tabBarItem了，但是每一個tabBarItem都需要放到UINavigationController上來控制視圖，在初始化兩個UINavigationController，還有一個在上面。? ? UINavigationController *nav1= [[UINavigationController alloc]initWithRootViewController:adduserViewController];? ? ? ? UINavigationController *nav2 = [[UINavigationController alloc]initWithRootViewController:searchViewController];? ? ? ? NSArray *ViewControllerArray = [[NSArray alloc]initWithObjects:viewController,nav1,nav2, nil];//? ? 將三個UINavigationController添加到一個數(shù)組里，tabBarItem已經(jīng)搞定了，但是主要的UITabBarController我們現(xiàn)在來初始化。? ? UITabBarController *tabBarController = [[UITabBarController alloc]init];//注意這里的用法，tabBarController.viewControllers是tabBarController的一個數(shù)組類型的屬性，它存放的是UINavigationController? ? tabBarController.viewControllers = ViewControllerArray;? ? tabBarController.selectedIndex = 0;//初始顯示第一個tabBarItem? ? tabBarController.delegate = self;//別忘了設(shè)置代理，在頭文件里要加上這兩個? ? ? ? self.window.rootViewController = tabBarController;? ? [self.window makeKeyAndVisible];? ? ? ? [nav1 release];? ? [nav2 release];? ? [tabBarController release];? ? [ViewControllerArray release];? ? [searchViewController release];? ? [adduserViewController release];? ? [viewController release];? ? return YES;}復(fù)制代碼接下來去下載FMDB工程項目https://github.com/ccgus/fmdb.git下載下來的是一個demo，大家可以把src文件夾拖出來再改名為FMDB，拖進自己的項目及就行了在項目里添加libsqlite3.dylib，SenTestingKit.framework兩個庫，還有頭文件#import "FMDatabase.h"和#import "FMDatabaseQueue.h"來看看通訊錄頁面ViewController.h復(fù)制代碼#import#import "FMDatabase.h"#import "FMDatabaseQueue.h"@class dataFromDataBase;@interface ViewController : UIViewController{? ? }@property (nonatomic, retain) NSString * dbPath;@property (nonatomic, retain) NSMutableArray *nameArray;@property (nonatomic, retain) NSMutableArray *phoneArray;@property (nonatomic, retain) NSMutableArray *IDArray;@property (nonatomic, retain) UITableView *table;- (void)createTable;@end@interface dataFromDataBase : NSObject {//新建一個類，專門用于保存數(shù)據(jù)@private? ? NSString *nameFromClass;? ? NSString *phoneFromClass;? ? NSString *IDFromClass;? ? NSMutableArray *nameArrayFromClass;}+(dataFromDataBase*)shareFromDataBase;//神奇的單例@property(retain,nonatomic) NSString *nameFromClass;@property(retain,nonatomic)NSString *phoneFromClass;@property(retain,nonatomic)NSString *IDFromClass;@property(retain,nonatomic)NSMutableArray *nameArrayFromClass;@end復(fù)制代碼ViewController.m復(fù)制代碼////? ViewController.m//? tabbartest////? Created by changjian on 12-12-8.//? Copyright (c) 2012年 __MyCompanyName__. All rights reserved.//#import "ViewController.h"#import "AddUserInfo.h"@implementation ViewController@synthesize dbPath;@synthesize nameArray,phoneArray,IDArray;@synthesize table;- (void)didReceiveMemoryWarning{? ? [super didReceiveMemoryWarning];? ? // Release any cached data, images, etc that aren't in use.}#pragma mark - View lifecycle- (void)viewDidLoad{? ? [super viewDidLoad];? ? self.title = @"通訊錄";? ? UITableView *tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320, 369) style:UITableViewStylePlain];? ? tableView.delegate = self;? ? tableView.dataSource = self;? ? self.table = tableView;? ? [self.view addSubview:tableView];? ? ? ? UIBarButtonItem *refreshBtn = [[UIBarButtonItem? alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(modifyDatabase)];? ? self.navigationItem.rightBarButtonItem = refreshBtn;? ? [refreshBtn release];? ? ? ? }#pragma mark -tableview-- (UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{//? ? NSString *CustomIdentifier =? [NSString stringWithFormat:@"cell%d",indexPath.row];? ? ? ? static NSString *CustomIdentifier = @"cell";//? ? UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CustomIdentifier];? ? UITableViewCell *cell = nil;? ? if (cell == nil) {? ? ? ? cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CustomIdentifier];? ? }//? ? while ([cell.contentView.subviews lastObject] != nil){? ? ? ? [(UIView*)[cell.contentView.subviews lastObject]removeFromSuperview];//當再次刷新的時候會自動添加新的cell，出現(xiàn)疊加情況，用這種方法可以去掉上一次添加的cell.contentView.subviews? ? if (indexPath.row == 0)//這里注意，因為第一行不顯示數(shù)據(jù)，所以做個判斷? ? ? ? cell.selectionStyle = UITableViewCellSelectionStyleNone;? ? if (indexPath.row > 0) {//從第二行開始顯示數(shù)據(jù)//? ? ? ? cell.textLabel.text = [dataArray objectAtIndex:(indexPath.row - 1)];//注意這里是從indexPath.row - 1行開始? ? ? ? UILabel *nameLabel = [[UILabel alloc]initWithFrame:CGRectMake(0+40, 10, 70, 30)];? ? ? ? UILabel *phoneLabel = [[UILabel alloc]initWithFrame:CGRectMake(90+40, 10, 70, 30)];? ? ? ? UILabel *IDLabel = [[UILabel alloc]initWithFrame:CGRectMake(180+40, 10, 70, 30)];? ? ? ? nameLabel.text = [self.nameArray objectAtIndex:(indexPath.row-1)];? ? ? ? IDLabel.text = [self.IDArray objectAtIndex:(indexPath.row-1)];? ? ? ? phoneLabel.text = [self.phoneArray objectAtIndex:(indexPath.row-1)];? ? ? ? [cell.contentView addSubview:nameLabel];? ? ? ? [cell.contentView addSubview:IDLabel];? ? ? ? [cell.contentView addSubview:phoneLabel];? ? ? ? [nameLabel release];? ? ? ? [IDLabel release];? ? ? ? [phoneLabel release];? ? }? ? else? ? {? ? ? ? for (int i = 0; i < 3; i ++) {? ? ? ? ? ? UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(90 * i + 40, 10, 70 , 30)];? ? ? ? ? ? NSArray *array = [NSArray arrayWithObjects:@"姓名",@"電話",@"ID", nil];? ? ? ? ? ? label.text = [array objectAtIndex:i];? ? ? ? ? ? label.backgroundColor = [UIColor clearColor];? ? ? ? ? ? [cell.contentView addSubview:label];? ? ? ? ? ? [label release];? ? ? ? ? ? label = nil;? ? ? ? }? ? }//? ? }? ? return cell;}- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{? ? return [nameArray count] + 1;//注意這里，因為第一行不顯示數(shù)據(jù)，返回要加一行}- (NSIndexPath*)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath{? ? if (indexPath.row == 0) {? ? ? ? return nil;//讓第一行不能點擊? ? }? ? else? ? ? ? return indexPath;}- (void)createTable//創(chuàng)建數(shù)據(jù)庫中表的方法，利用封裝好的庫很簡單{? ? NSFileManager *fileManager = [NSFileManager defaultManager];? ? if (![fileManager fileExistsAtPath:self.dbPath]) {? ? ? ? NSLog(@"表不存在，創(chuàng)建表");? ? ? ? FMDatabase *db =[FMDatabase databaseWithPath:self.dbPath];? ? ? ? if ([db open]) {? ? ? ? ? ? NSString *sql = @"CREATE TABLE 'USER'('id' INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, 'name' VARCHAR(20),'phone' VARCHAR(20),'idcode' VARCHAR(30))? ? ";//sql語句? ? ? ? ? ? BOOL success = [db executeUpdate:sql];? ? ? ? ? ? if (!success) {? ? ? ? ? ? ? ? NSLog(@"error when create table ");? ? ? ? ? ? }else{? ? ? ? ? ? ? ? NSLog(@"create table succeed");? ? ? ? ? ? }? ? ? ? ? ? [db close];? ? ? ? }else{? ? ? ? ? ? NSLog(@"database open error");? ? ? ? }? ? }}- (void)getAllDatabase//從數(shù)據(jù)庫中獲得所有數(shù)據(jù){? ? FMDatabase *db = [FMDatabase databaseWithPath:self.dbPath];? ? if ([db open]) {? ? ? ? NSString *sql = @"SELECT * FROM USER";? ? ? ? FMResultSet *rs = [db executeQuery:sql];? ? ? ? while ([rs next]) {? ? ? ? ? ? NSString *name = [rs stringForColumn:@"name"];? ? ? ? ? ? NSString *phone = [rs stringForColumn:@"phone"];? ? ? ? ? ? NSString *ID = [rs stringForColumn:@"idcode"];? ? ? ? ? ? ? ? ? ? ? ? [self.nameArray addObject:name];? ? ? ? ? ? [self.phoneArray addObject:phone];? ? ? ? ? ? [self.IDArray addObject:ID];? ? ? ? }? ? ? ? [[dataFromDataBase shareFromDataBase].nameArrayFromClass arrayByAddingObjectsFromArray:self.nameArray];? ? ? ? NSLog(@"self.nameArray==%@",self.nameArray);? ? ? ? [db close];? ? ? ? [table reloadData];? ? }? ? }- (void)modifyDatabase//選中相應(yīng)的行，進入更新界面，注意這里沒有對數(shù)據(jù)庫進行操作{? ? NSIndexPath *indexPath = [self.table indexPathForSelectedRow];? ? ? ? if (indexPath == nil) {? ? ? ? UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? message:@"請選擇要更新的項"? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? delegate:self? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? cancelButtonTitle:@"好"? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? otherButtonTitles:nil];? ? ? ? [alert show];? ? ? ? [alert release];? ? ? ? return;? ? }? ? else{? ? ? ? AddUserInfo *modify = [[AddUserInfo alloc]init];? ? ? ? modify.operateType = 1;//下面的方法是將選中的行的數(shù)據(jù)存進單例，再傳到另一個類里面? ? ? ? [dataFromDataBase shareFromDataBase].nameFromClass = [self.nameArray objectAtIndex:(indexPath.row-1)];? ? ? ? [dataFromDataBase shareFromDataBase].IDFromClass = [self.IDArray objectAtIndex:(indexPath.row-1)];? ? ? ? [dataFromDataBase shareFromDataBase].phoneFromClass = [self.phoneArray objectAtIndex:(indexPath.row-1)];? ? ? ? NSLog(@"datafromdatabase.nameFromClass==%@",[dataFromDataBase shareFromDataBase].nameFromClass);? ? ? ? [self.navigationController pushViewController:modify animated:YES];//跳轉(zhuǎn)到修改頁面? ? ? ? [modify release];? ? }}- (void)viewDidUnload{? ? [super viewDidUnload];? ? // Release any retained subviews of the main view.? ? // e.g. self.myOutlet = nil;}- (void)dealloc {? ? [nameArray release];? ? [phoneArray release];? ? [IDArray release];? ? [super dealloc];}- (void)viewWillAppear:(BOOL)animated{? ? NSString *document = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0];? ? NSString *path = [document stringByAppendingPathComponent:@"USER.sqlite"];? ? self.dbPath = path;//注意以上三句話是獲取數(shù)據(jù)庫路徑必不可少的，在viewDidload之前就已經(jīng)準備好了? ? nameArray = [[NSMutableArray alloc]init];? ? phoneArray = [[NSMutableArray alloc]init];? ? IDArray = [[NSMutableArray alloc]init];? ? [self createTable];? ? [self getAllDatabase];}- (void)viewDidAppear:(BOOL)animated{? ? [super viewDidAppear:animated];}- (void)viewWillDisappear:(BOOL)animated{? ? [super viewWillDisappear:animated];}- (void)viewDidDisappear:(BOOL)animated{? ? [super viewDidDisappear:animated];}- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{? ? // Return YES for supported orientations? ? return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);}@end@implementation dataFromDataBase//這個類專門用來保存數(shù)據(jù)@synthesize nameFromClass,phoneFromClass,IDFromClass;@synthesize nameArrayFromClass;static dataFromDataBase *sharedInstance = nil;+(dataFromDataBase*)shareFromDataBase//偉大的單例，{? ? if (sharedInstance == nil) {? ? ? ? sharedInstance = [[dataFromDataBase alloc]init];? ? }? ? return sharedInstance;}- (id)init {? ? self = [super init];? ? if (self) {? ? ? ? nameFromClass = @"";? ? ? ? phoneFromClass = @"";? ? ? ? IDFromClass = @"";? ? ? ? nameArrayFromClass = [[NSMutableArray alloc]initWithCapacity:0];? ? }? ? return self;}- (void)dealloc {? ? if (nameFromClass!= nil){? ? [nameFromClass release];? ? ? ? }? ? if (phoneFromClass!=nil){? ? [phoneFromClass release];? ? }? ? if (IDFromClass != nil){? ? [IDFromClass release];? ? }? ? if (nameArrayFromClass != nil) {? ? ? ? [nameArrayFromClass release];? ? }? ? [super dealloc];}@end復(fù)制代碼下面是AddUserInfo.h文件復(fù)制代碼#import#import "ViewController.h"@interface AddUserInfo : UIViewController{? ? int operateType;//保存操作類型，0是添加，1是修改}- (void)createTable;@property (retain,nonatomic)NSMutableArray *textFieldArray;@property (retain,nonatomic)NSString *dbPath;@property (retain,nonatomic)UITextField *nameTextField;@property (retain,nonatomic)UITextField *phoneTextField;@property (retain,nonatomic)UITextField *IDTextField;@property (nonatomic,assign)int operateType;@end復(fù)制代碼AddUserInfo.m文件復(fù)制代碼////? AddUserInfo.m//? tabbartest////? Created by changjian on 12-12-8.//? Copyright (c) 2012年 __MyCompanyName__. All rights reserved.//#import "AddUserInfo.h"#import "FMDatabase.h"#import "FMDatabaseQueue.h"#import "UserDetailInfo.h"@implementation AddUserInfo@synthesize textFieldArray;@synthesize dbPath;@synthesize nameTextField;@synthesize phoneTextField;@synthesize IDTextField;@synthesize operateType;- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{? ? self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];? ? if (self) {? ? ? ? textFieldArray = [[NSMutableArray alloc]init];? ? }? ? return self;}- (void)didReceiveMemoryWarning{? ? // Releases the view if it doesn't have a superview.? ? [super didReceiveMemoryWarning];? ? ? ? // Release any cached data, images, etc that aren't in use.}#pragma mark - View lifecycle- (void)viewDidLoad{? ? [super viewDidLoad];? ? NSString *doc = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];? ? NSString *path = [doc stringByAppendingPathComponent:@"user.sqlite"];? ? NSLog(@"path===%@",path);? ? self.dbPath = path;? ? ? ? NSArray *array = [NSArray arrayWithObjects:@"姓名",@"電話",@"ID", nil];? ? for (int i = 0; i < 3 ; i++)? ? {? ? ? ? UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake( 70,i * 40 + 34, 100, 30)];? ? ? ? label.text = [array objectAtIndex:i];? ? ? ? [self.view addSubview:label];? ? }? ? ? ? nameTextField = [[UITextField alloc]initWithFrame:CGRectMake(150, 38, 100, 30)];? ? nameTextField.borderStyle = UITextBorderStyleRoundedRect;? ? nameTextField.placeholder = @"請輸入姓名";? ? nameTextField.delegate = self;? ? [self.view addSubview:nameTextField];? ? phoneTextField = [[UITextField alloc]initWithFrame:CGRectMake(150, 78, 100, 30)];? ? phoneTextField.borderStyle = UITextBorderStyleRoundedRect;? ? phoneTextField.placeholder = @"請輸入電話";? ? phoneTextField.delegate = self;? ? [self.view addSubview:phoneTextField];? ? IDTextField = [[UITextField alloc]initWithFrame:CGRectMake(150, 118, 100, 30)];? ? IDTextField.borderStyle = UITextBorderStyleRoundedRect;? ? IDTextField.placeholder = @"請輸入ID";? ? IDTextField.delegate = self;? ? [self.view addSubview:IDTextField];? ? if (operateType == 1) {//operateType == 1時為修改? ? ? ? nameTextField.text = [dataFromDataBase shareFromDataBase].nameFromClass;? ? ? ? IDTextField.text = [dataFromDataBase shareFromDataBase].IDFromClass;? ? ? ? phoneTextField.text = [dataFromDataBase shareFromDataBase].phoneFromClass;? ? ? ? IDTextField.enabled = NO;? ? ? ? NSLog(@"datafromdatabase.nameFromClass=%@",[dataFromDataBase shareFromDataBase].nameFromClass);? ? }? ? NSLog(@"operateType==%d",operateType);? ? if (operateType == 0){? ? UIBarButtonItem *addBtn = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addNewUserInfo)];? ? ? ? self.navigationItem.rightBarButtonItem = addBtn;? ? }? ? if(operateType == 1){//這里是后來添加的，其實可以放到上面? ? ? ? UIBarButtonItem *addBtn = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(addNewUserInfo)];? ? ? ? self.navigationItem.rightBarButtonItem = addBtn;? ? }? ? ? ? // Do any additional setup after loading the view from its nib.}- (void)addNewUserInfo//添加用戶信息的方法，用FMDB封裝好的方法{? ? FMDatabase *db = [[FMDatabase alloc]initWithPath:self.dbPath];? ? NSString *mes = nil;? ? if ([db open]) {? ? ? ? ? ? if (nameTextField.text.length == 0||phoneTextField.text.length == 0||IDTextField.text.length == 0){? ? ? ? ? ? ? ? mes = @"請完成填寫信息";? ? ? ? ? ? }else{? ? ? ? ? ? ? ? NSLog(@"姓名==%@,電話==%@,ID==%@",nameTextField.text,phoneTextField.text,IDTextField.text);? ? ? ? ? ? ? ? NSString *sql= nil;? ? ? ? ? ? ? ? if (operateType == 0){//執(zhí)行插入操作? ? ? ? ? ? ? ? ? ? sql = @"INSERT INTO USER (name,phone,idcode) VALUES (?,?,?) ";? ? ? ? ? ? ? ? }else if(operateType == 1)//執(zhí)行更新操作? ? ? ? ? ? ? ? {? ? ? ? ? ? ? ? ? ? sql = @"UPDATE USER? SET name = ? , phone = ? where idcode = ?";? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? NSLog(@"有沒有執(zhí)行？");? ? ? ? ? ? ? ? }? ? ? ? ? ? ? ? BOOL res = [db executeUpdate:sql,nameTextField.text,phoneTextField.text,IDTextField.text];? ? ? ? ? ? ? ? if (!res) {? ? ? ? ? ? ? ? ? ? NSLog(@"error to insert data");? ? ? ? ? ? ? ? ? ? mes = @"數(shù)據(jù)插入錯誤";? ? ? ? ? ? ? ? }else{? ? ? ? ? ? ? ? ? ? NSLog(@"insert succeed");? ? ? ? ? ? ? ? ? ? mes = @"數(shù)據(jù)插入成功";? ? ? ? ? ? ? ? }? ? ? ? ? ? }? ? ? ? }else{? ? ? ? ? ? NSLog(@"數(shù)據(jù)庫打開失敗") ;? ? }? ? UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:mes delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil, nil];? ? [alert setTag:101];? ? alert.delegate = self;? ? [alert show];? ? [alert release];? ? [db close];}- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{? ? if (alertView.tag == 101 && buttonIndex == 0) {? ? ? ? if (operateType == 0)//如果是添加就留在該頁，如果是修改就跳回上一頁? ? ? ? {? ? ? ? [nameTextField resignFirstResponder];? ? ? ? [phoneTextField resignFirstResponder];? ? ? ? [IDTextField resignFirstResponder];? ? ? ? nameTextField.text = @"";? ? ? ? phoneTextField.text = @"";? ? ? ? IDTextField.text = @"";? ? ? ? }else{? ? ? ? ? ? [self.navigationController popViewControllerAnimated:YES];? ? ? ? }? ? }}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{? ? [nameTextField resignFirstResponder];? ? [phoneTextField resignFirstResponder];? ? [IDTextField resignFirstResponder];}//讓鍵盤隱藏- (void)viewWillAppear:(BOOL)animated{? ? [super viewWillAppear:YES];}- (void)viewDidUnload{? ? [super viewDidUnload];? ? // Release any retained subviews of the main view.? ? // e.g. self.myOutlet = nil;}- (void)dealloc {? ? [nameTextField release];? ? [phoneTextField release];? ? [IDTextField release];? ? [textFieldArray release];? ? [super dealloc];}-(void)viewWillDisappear:(BOOL)animated//頁面將要消失的時候執(zhí)行，將UITextField清空{(diào)? ? [super viewWillDisappear:YES];? ? nameTextField.text = nil;? ? phoneTextField.text = nil;? ? IDTextField.text = nil;}- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{? ? // Return YES for supported orientations? ? return (interfaceOrientation == UIInterfaceOrientationPortrait);}@end復(fù)制代碼下面是SearchInfo.h文件,一定要注意這個類是繼承UITableViewController，不是UIViewController！！！復(fù)制代碼////? SearchInfo.h//? tabbartest////? Created by changjian on 12-12-8.//? Copyright (c) 2012年 __MyCompanyName__. All rights reserved.//#import@interface SearchInfo : UITableViewController{? ? UISearchDisplayController *searchController;? ? NSString *namestr;? ? NSString *phonestr;? ? NSString *IDstr;}@property (retain,nonatomic)NSString *dbpath;@property (retain,nonatomic)NSMutableArray *searchResults;//用于保存搜索出姓名的結(jié)果@property (retain,nonatomic)NSMutableArray *searchPhoneResults;//用來保存搜索的電話信息@property (retain,nonatomic)NSMutableArray *searchIDResult;//用來保存搜索的ID信息@property (retain,nonatomic)NSMutableArray *nameArray;//保存搜索之前的姓名信息@property (retain,nonatomic)NSMutableArray *phoneArray;//保存搜索之前的電話信息@property (retain,nonatomic)NSMutableArray *IDArray;//保存搜索之前的ID信息@property (nonatomic,assign)BOOL searchWasActive;@property (nonatomic,assign)NSString *savedSearchTerm;//這個好像沒用了@property (nonatomic,retain)NSString *namestr;@property (nonatomic,retain)NSString*phonestr;@property (nonatomic,retain)NSString*IDstr;- (void)getAllDatabase;@end復(fù)制代碼SearchInfo.m文件復(fù)制代碼////? SearchInfo.m//? tabbartest////? Created by changjian on 12-12-8.//? Copyright (c) 2012年 __MyCompanyName__. All rights reserved.//#import "SearchInfo.h"#import "FMDatabase.h"#import "ViewController.h"#import "UserDetailInfo.h"@implementation SearchInfo@synthesize dbpath;@synthesize searchResults,searchPhoneResults,searchIDResult;@synthesize nameArray,phoneArray,IDArray;@synthesize searchWasActive;@synthesize savedSearchTerm;@synthesize namestr,phonestr,IDstr;- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{? ? self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];? ? if (self) {? ? ? ? // Custom initialization? ? }? ? return self;}- (void)didReceiveMemoryWarning{? ? // Releases the view if it doesn't have a superview.? ? [super didReceiveMemoryWarning];? ? ? ? // Release any cached data, images, etc that aren't in use.}#pragma mark - View lifecycle- (void)viewDidLoad{? ? [super viewDidLoad];//搜索比較復(fù)雜，既要初始化UISearchBar，又要初始化UISearchDisplayController，然后還要寫UITableViewDelegate里的-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath和-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section方法，還要設(shè)置一大堆代理，慢慢往下看? ? UISearchBar *search = [[[UISearchBar alloc]initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width -50, 44)]autorelease];? ? search.placeholder = @"請輸入姓名";? ? search.autocorrectionType = UITextAutocorrectionTypeNo;//不自動糾錯，貌似沒啥用? ? search.autocapitalizationType = UITextAutocapitalizationTypeAllCharacters;//所有字母大寫 ，也沒啥用? ? ? ? search.showsScopeBar = YES;? ? search.delegate = self;//UISearchBar設(shè)置代理? ? search.keyboardType = UIKeyboardTypeNamePhonePad;? ? self.tableView.tableHeaderView = search;? ? self.tableView.dataSource = self;? ? searchController = [[UISearchDisplayController alloc]initWithSearchBar:search contentsController:self];? ? searchController.active = NO;? ? ? ? searchController.delegate = self;//UISearchDisplayController設(shè)置代理? ? ? ? searchController.searchResultsDelegate=self;//還是代理? ? ? ? searchController.searchResultsDataSource = self;//有完沒完? ? [search release];? ? NSString *document = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0];? ? NSString *path = [document stringByAppendingPathComponent:@"user.sqlite"];? ? NSLog(@"path==%@",path);? ? self.dbpath = path;? ? self.tableView.delegate = self;//tableView的代理，為什么這么寫，因為這個類是繼承UITableView的，要注意！不是繼承UIViewController的！? ? self.tableView.dataSource = self;? ? nameArray = [[NSMutableArray alloc]initWithCapacity:0];? ? phoneArray = [[NSMutableArray alloc]initWithCapacity:0];? ? IDArray= [[NSMutableArray alloc]initWithCapacity:0];? ? ? ? [self getAllDatabase];? ? [self.tableView reloadData];? ? // Do any additional setup after loading the view from its nib.}- (void)viewWillAppear:(BOOL)animated{? ? self.searchWasActive = [self.searchDisplayController isActive];? ? if (self.searchDisplayController.searchBar != 0)? ? {? ? ? ? self.searchDisplayController.searchBar.text = nil;? ? ? ? [self.searchDisplayController.searchBar resignFirstResponder];? ? ? ? [self.searchDisplayController setActive:NO];//在進入搜索頁面之前將其設(shè)置為不活動，大家可以試試改成活動看看是什么樣? ? }}- (void)getAllDatabase//要重新獲取數(shù)據(jù)庫信息，因為執(zhí)行完刪除之后數(shù)據(jù)庫變了{? ? FMDatabase *db = [FMDatabase databaseWithPath:self.dbpath];? ? if ([db open]) {? ? ? ? NSString *sql = @"SELECT * FROM USER";? ? ? ? FMResultSet *rs = [db executeQuery:sql];? ? ? ? while ([rs next]) {? ? ? ? ? ? NSString *name = [rs stringForColumn:@"name"];? ? ? ? ? ? NSString *phone = [rs stringForColumn:@"phone"];? ? ? ? ? ? NSString *ID = [rs stringForColumn:@"idcode"];? ? ? ? ? ? ? ? ? ? ? ? [self.nameArray addObject:name];? ? ? ? ? ? [self.phoneArray addObject:phone];? ? ? ? ? ? [self.IDArray addObject:ID];? ? ? ? }? ? ? ? self.searchResults = [[NSMutableArray alloc]initWithArray:nameArray copyItems:YES];? ? ? ? self.searchPhoneResults = [[NSMutableArray alloc]initWithArray:phoneArray copyItems:YES];? ? ? ? self.searchIDResult = [[NSMutableArray alloc]initWithArray:IDArray copyItems:YES];? ? ? ? NSLog(@"search from nameArray==%@",self.nameArray);? ? ? ? [db close];? ? }}#pragma mark -tableview--(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{//? ? self.tableView = tableView;? ? static NSString *cellIdentifier = @"cell";? ? UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];? ? if (cell == nil) {? ? ? ? cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];? ? }? ? cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;? ? if ([tableView isEqual:self.searchDisplayController.searchResultsTableView]) {? ? ? ? cell.textLabel.text = [searchResults objectAtIndex:indexPath.row];//? ? ? ? cell.detailTextLabel.text = [NSString stringWithFormat:@"電話：%@",[searchResults objectAtIndex:indexPath.row]];//不知道為什么不顯示cell.detailTextLabel.text ，有人知道的話告訴我一下? ? }else{? ? ? ? cell.textLabel.text = [self.nameArray objectAtIndex:indexPath.row];? ? }? ? return cell;}-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{? ? NSInteger row = 0;? ? if ([tableView isEqual:self.searchDisplayController.searchResultsTableView]) {//記住這個格式，如果當前的table就是用于顯示所搜信息的table的話。因為UISearchDisplayController這貨自帶一個table? ? ? ? row = [self.searchResults count];? ? }else{? ? ? ? [self.nameArray count];? ? }? ? return row;}- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{? ? UserDetailInfo *detailInfo = [[UserDetailInfo alloc]init];? ? detailInfo.nameStr = [self.searchResults objectAtIndex:indexPath.row];? ? detailInfo.phoneStr = [self.searchPhoneResults objectAtIndex:indexPath.row];? ? detailInfo.IDsStr = [self.searchIDResult objectAtIndex:indexPath.row];? ? NSLog(@"self.namestr==%@",self.namestr);? ? NSArray *array = [self.navigationController viewControllers];//先獲取視圖控制器數(shù)組? ? UINavigationController *nav = [array objectAtIndex:[array count] - 1];//獲取當前的導(dǎo)航試圖控制器? ? [nav.navigationController pushViewController:detailInfo animated:YES];//跳轉(zhuǎn)到刪除頁面? ? [detailInfo release];}#pragma mark -UISearchControllerDisplay-//設(shè)置搜索范圍//下面注意了，下面的方法是實現(xiàn)搜索功能的，后面兩個長得很像的方法是UISearchControllerDisplay代理里的方法，我也搞不懂是干什么用的，他們的格式很固定，大家記住就行了。- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope{? ? [self searchBarSearchButtonClicked:self.searchDisplayController.searchBar];? ? }- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar//從數(shù)據(jù)庫搜索{? ? FMDatabase *db = [FMDatabase databaseWithPath:self.dbpath];? ? if ([db open]) {? ? ? ? [searchResults removeAllObjects];? ? ? ? [searchPhoneResults removeAllObjects];? ? ? ? [searchIDResult removeAllObjects];? ? ? ? NSString *sql = @"SELECT * FROM USER WHERE name like ?";? ? ? ? FMResultSet *rs = [db executeQuery:sql,searchBar.text];? ? ? ? while ([rs next]) {? ? ? ? ? ? self.namestr = [rs stringForColumn:@"name"];? ? ? ? ? ? self.phonestr = [rs stringForColumn:@"phone"];? ? ? ? ? ? self.IDstr = [rs stringForColumn:@"idcode"];? ? ? ? ? ? [self.searchResults addObject:namestr];? ? ? ? ? ? [self.searchPhoneResults addObject:phonestr];? ? ? ? ? ? [self.searchIDResult addObject:IDstr];? ? ? ? }? ? ? ? NSLog(@"searchResults == %@",searchResults);? ? ? ? NSLog(@"searchPhoneResults==%@",searchPhoneResults);? ? ? ? NSLog(@"searchIDResult==%@",searchIDResult);? ? ? ? NSLog(@"search===%@",searchBar.text);? ? }? ? [db close];}#pragma mark -#pragma mark UISearchDisplayController Delegate Methods設(shè)置代理方法- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString{? ? [self filterContentForSearchText:searchString scope:? ? [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]];? ? ? ? // Return YES to cause the search result table view to be reloaded.? ? return YES;}- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption{? ? [self filterContentForSearchText:[self.searchDisplayController.searchBar text] scope:? ? [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:searchOption]];? ? ? ? // Return YES to cause the search result table view to be reloaded.? ? return YES;}- (void)viewDidUnload{? ? [super viewDidUnload];? ? // Release any retained subviews of the main view.? ? // e.g. self.myOutlet = nil;}- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{? ? // Return YES for supported orientations? ? return (interfaceOrientation == UIInterfaceOrientationPortrait);}- (void)dealloc {? ? [nameArray release];? ? [phoneArray release];? ? [IDArray release];? ? [searchController release];? ? [searchResults release];? ? [searchPhoneResults release];? ? [searchIDResult release];? ? [super dealloc];}@end復(fù)制代碼最難的部分完了，接下來就簡單多了！最后是刪除信息界面UserDetailInfo.h復(fù)制代碼@interface UserDetailInfo : UIViewController{
}
@property(retain,nonatomic)NSString *dbpath;
@property(retain,nonatomic)NSString *nameStr;
@property(retain,nonatomic)NSString *phoneStr;
@property(retain,nonatomic)NSString *IDsStr;
@end
復(fù)制代碼
UserDetailInfo.m
復(fù)制代碼
//
//? UserDetailInfo.m
//? tabbartest
//
//? Created by changjian on 12-12-10.
//? Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//
#import "UserDetailInfo.h"
#import "FMDatabase.h"
@implementation UserDetailInfo
@synthesize dbpath;
@synthesize nameStr,phoneStr,IDsStr;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = @"詳細信息";
NSArray *array = [NSArray arrayWithObjects:@"姓名:",@"電話:",@"ID:", nil];
NSArray *array2 = [NSArray arrayWithObjects:self.nameStr,self.phoneStr,self.IDsStr, nil];
for (int i = 0; i < 3 ; i++)
{
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake( 70,i * 40 + 34, 100, 30)];
label.text = [array objectAtIndex:i];
[self.view addSubview:label];
UILabel *label2 = [[UILabel alloc]initWithFrame:CGRectMake(140, i * 40 +35, 100, 30)];
label2.text = [array2 objectAtIndex:i];
[self.view addSubview:label2];
[label release];
[label2 release];
}
NSString *document = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0];
NSString *path = [document stringByAppendingPathComponent:@"USER.sqlite"];
self.dbpath = path;
UIBarButtonItem *deleteButton = [[UIBarButtonItem alloc]initWithTitle:@"刪除" style:UIBarButtonItemStyleDone target:self action:@selector(deleteFromDatabase)];
self.navigationItem.rightBarButtonItem = deleteButton;
}
- (void)deleteFromDatabase//從數(shù)據(jù)庫刪除信息
{
FMDatabase *db = [FMDatabase databaseWithPath:self.dbpath];
NSString *mes = nil;
if ([db open]) {
NSString *sql = @"DELETE FROM USER WHERE name = ? and phone = ? and idcode = ?";
if (self.nameStr.length != 0&&self.phoneStr.length != 0&&self.IDsStr.length !=0){
BOOL rs = [db executeUpdate:sql,self.nameStr,self.phoneStr,self.IDsStr]; //后面跟的三個參數(shù)就是sql語句里的三個問號對應(yīng)
if (rs) {
mes = @"刪除成功";
}else{
mes = @"刪除失敗";
}
}
}
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:mes delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil, nil];
alert.delegate = self;//別忘了代理
[alert show];
[alert release];
[db close];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if ( buttonIndex == 0) {
[self.navigationController popViewControllerAnimated:YES];
NSLog(@"點擊了刪除成功");
}
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:YES];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
@end
