当用户第一次运行我的应用程序时，会出现LoginViewController。一旦他登录，我就会提供一个ModalViewController，其中包含应用程序的所有内容。如果用户想要注销，我会关闭模态视图，再次显示LoginViewController。
如果用户在已经记录的情况下运行应用程序，则会出现问题。在self.window.rootViewController中，我直接设置应用程序的主视图（嵌入UITabBarController），所以如果用户想要注销，我不知道“解雇”视图的方法并显示LoginViewController。
情景：
UITabBarController - ＆gt; （退出） - ＆gt; LoginViewController。UITabBarController - ＆gt; （退出） - ＆gt; LoginViewController。我认为必须有一种简单的方法来实现这一点，因为在具有登录系统的应用程序中这是一种非常正常的行为，但我还没有找到一种干净的方法。
答案 0 :(得分：2)
经过多次努力，我们发布了一个名为CLHoppingViewController的开源库，它可以处理这种情况。
所以，在你的情况下，你会做这样的事情来描述启动流程：
UIViewController *loginViewController;
UIViewController *mainViewController;
if (user_not_logged_in) {
[self hopToViewController:loginViewController then:^{
[self hopToViewController:mainViewController then:nil];
}];
}
else {
[self hopToViewController:mainViewController then:nil];
}
该库可以支持更高级的条件序列。例如，您可以显示启动画面，有条件地显示入职用户体验等。
有一个简短的教程here。
答案 1 :(得分：0)
我这样做了：
App Delegate：
if() //signed in
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
TabBarController *tabBarController1 = [[TabBarController alloc] init];
self.window.rootViewController = tabBarController1.myTabBarController;
[self.window makeKeyAndVisible];
}
else //signed out
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.viewController = [[SigninTabBarTemplateViewController alloc] initWithNibName:@"SigninTabBarTemplateViewController" bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:self.viewController];
self.window.rootViewController = navController;
[self.window makeKeyAndVisible];
}
如果您已退出，我将tabbarcontroller实现为单独的UITabBarController：
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
UIViewController *viewController1 = [[FirstTab alloc] initWithNibName:@"FirstTab" bundle:NSBundle.mainBundle];
UINavigationController *firstNavController = [[UINavigationController alloc]initWithRootViewController:viewController1];
UIViewController *viewController2 = [[SecondTab alloc] initWithNibName:@"SecondTab" bundle:NSBundle.mainBundle];
UINavigationController *secondNavController = [[UINavigationController alloc]initWithRootViewController:viewController2];
myTabBarController = [[UITabBarController alloc] init];
myTabBarController.viewControllers = [NSArray arrayWithObjects:firstNavController, secondNavController, nil];
}
return self;
}
答案 2 :(得分：0)
尝试以下方式：
TabBarController *tabBarController1 = [[TabBarController alloc] init];
self.window.rootViewController = tabBarController1.myTabBarController;
[self.window makeKeyAndVisible];
// if not Logedin
if() {
self.viewController = [[LoginViewController alloc] initWithNibName:@"LoginViewController" bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:self.viewController];
[self.tabBarController1 presentModalViewController:navController animated:NO];
}
登录后，关闭LoginViewController。同时logout按照上面的方式在tabBarViewController上以模态方式呈现LoginViewController。
答案 3 :(得分：0)
处理登录状态的一种优雅方式是使用statemachine。原则是，定义所有可能的状态以及它们之间的转换。这可能看起来像第一眼看上去有些过分，但随着应用程序的增长，这项投资将会有所回报。 对于小型应用程序，if / else方式应该没问题。
答案 4 :(得分：0)
#import <UIKit/UIKit.h>
#import "EditInfoViewController.h"
@interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource, EditInfoViewControllerDelegate>
@property (weak, nonatomic) IBOutlet UITableView *tblPeople;
- (IBAction)addNewRecord:(id)sender;
@end
#import "ViewController.h"
#import "DBManager.h"
@interface ViewController ()
@property (nonatomic, strong) DBManager *dbManager;
@property (nonatomic, strong) NSArray *arrPeopleInfo;
@property (nonatomic) int recordIDToEdit;
-(void)loadData;
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
// Make self the delegate and datasource of the table view.
self.tblPeople.delegate = self;
self.tblPeople.dataSource = self;
// Initialize the dbManager property.
self.dbManager = [[DBManager alloc] initWithDatabaseFilename:@"sampledb.sql"];
// Load the data.
[self loadData];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
EditInfoViewController *editInfoViewController = [segue destinationViewController];
editInfoViewController.delegate = self;
editInfoViewController.recordIDToEdit = self.recordIDToEdit;
}
#pragma mark - IBAction method implementation
- (IBAction)addNewRecord:(id)sender {
// Before performing the segue, set the -1 value to the recordIDToEdit. That way we'll indicate that we want to add a new record and not to edit an existing one.
self.recordIDToEdit = -1;
// Perform the segue.
[self performSegueWithIdentifier:@"idSegueEditInfo" sender:self];
}
#pragma mark - Private method implementation
-(void)loadData{
// Form the query.
NSString *query = @"select * from peopleInfo";
// Get the results.
if (self.arrPeopleInfo != nil) {
self.arrPeopleInfo = nil;
}
self.arrPeopleInfo = [[NSArray alloc] initWithArray:[self.dbManager loadDataFromDB:query]];
// Reload the table view.
[self.tblPeople reloadData];
}
#pragma mark - UITableView method implementation
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return self.arrPeopleInfo.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
// Dequeue the cell.
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"idCellRecord" forIndexPath:indexPath];
NSInteger indexOfFirstname = [self.dbManager.arrColumnNames indexOfObject:@"firstname"];
NSInteger indexOfLastname = [self.dbManager.arrColumnNames indexOfObject:@"lastname"];
NSInteger indexOfAge = [self.dbManager.arrColumnNames indexOfObject:@"age"];
// Set the loaded data to the appropriate cell labels.
cell.textLabel.text = [NSString stringWithFormat:@"%@ %@", [[self.arrPeopleInfo objectAtIndex:indexPath.row] objectAtIndex:indexOfFirstname], [[self.arrPeopleInfo objectAtIndex:indexPath.row] objectAtIndex:indexOfLastname]];
cell.detailTextLabel.text = [NSString stringWithFormat:@"Age: %@", [[self.arrPeopleInfo objectAtIndex:indexPath.row] objectAtIndex:indexOfAge]];
return cell;
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return 60.0;
}
-(void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath{
// Get the record ID of the selected name and set it to the recordIDToEdit property.
self.recordIDToEdit = [[[self.arrPeopleInfo objectAtIndex:indexPath.row] objectAtIndex:0] intValue];
// Perform the segue.
[self performSegueWithIdentifier:@"idSegueEditInfo" sender:self];
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the selected record.
// Find the record ID.
int recordIDToDelete = [[[self.arrPeopleInfo objectAtIndex:indexPath.row] objectAtIndex:0] intValue];
// Prepare the query.
NSString *query = [NSString stringWithFormat:@"delete from peopleInfo where peopleInfoID=%d", recordIDToDelete];
// Execute the query.
[self.dbManager executeQuery:query];
// Reload the table view.
[self loadData];
}
}
#pragma mark - EditInfoViewControllerDelegate method implementation
-(void)editingInfoWasFinished{
// Reload the data.
[self loadData];
}
@end
===================
#import <UIKit/UIKit.h>
@protocol EditInfoViewControllerDelegate
-(void)editingInfoWasFinished;
@end
@interface EditInfoViewController : UIViewController <UITextFieldDelegate>
@property (nonatomic, strong) id<EditInfoViewControllerDelegate> delegate;
@property (weak, nonatomic) IBOutlet UITextField *txtFirstname;
@property (weak, nonatomic) IBOutlet UITextField *txtLastname;
@property (weak, nonatomic) IBOutlet UITextField *txtAge;
@property (nonatomic) int recordIDToEdit;
- (IBAction)saveInfo:(id)sender;
@end
#import "EditInfoViewController.h"
#import "DBManager.h"
@interface EditInfoViewController ()
@property (nonatomic, strong) DBManager *dbManager;
-(void)loadInfoToEdit;
@end
@implementation EditInfoViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
// Make self the delegate of the textfields.
self.txtFirstname.delegate = self;
self.txtLastname.delegate = self;
self.txtAge.delegate = self;
// Set the navigation bar tint color.
self.navigationController.navigationBar.tintColor = self.navigationItem.rightBarButtonItem.tintColor;
// Initialize the dbManager object.
self.dbManager = [[DBManager alloc] initWithDatabaseFilename:@"sampledb.sql"];
// Check if should load specific record for editing.
if (self.recordIDToEdit != -1) {
// Load the record with the specific ID from the database.
[self loadInfoToEdit];
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#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.
}
*/
#pragma mark - UITextFieldDelegate method implementation
-(BOOL)textFieldShouldReturn:(UITextField *)textField{
[textField resignFirstResponder];
return YES;
}
#pragma mark - IBAction method implementation
- (IBAction)saveInfo:(id)sender {
// Prepare the query string.
// If the recordIDToEdit property has value other than -1, then create an update query. Otherwise create an insert query.
NSString *query;
if (self.recordIDToEdit == -1) {
query = [NSString stringWithFormat:@"insert into peopleInfo values(null, '%@', '%@', %d)", self.txtFirstname.text, self.txtLastname.text, [self.txtAge.text intValue]];
}
else{
query = [NSString stringWithFormat:@"update peopleInfo set firstname='%@', lastname='%@', age=%d where peopleInfoID=%d", self.txtFirstname.text, self.txtLastname.text, self.txtAge.text.intValue, self.recordIDToEdit];
}
// Execute the query.
[self.dbManager executeQuery:query];
// If the query was successfully executed then pop the view controller.
if (self.dbManager.affectedRows != 0) {
NSLog(@"Query was executed successfully. Affected rows = %d", self.dbManager.affectedRows);
// Inform the delegate that the editing was finished.
[self.delegate editingInfoWasFinished];
// Pop the view controller.
[self.navigationController popViewControllerAnimated:YES];
}
else{
NSLog(@"Could not execute the query.");
}
}
#pragma mark - Private method implementation
-(void)loadInfoToEdit{
// Create the query.
NSString *query = [NSString stringWithFormat:@"select * from peopleInfo where peopleInfoID=%d", self.recordIDToEdit];
// Load the relevant data.
NSArray *results = [[NSArray alloc] initWithArray:[self.dbManager loadDataFromDB:query]];
// Set the loaded data to the textfields.
self.txtFirstname.text = [[results objectAtIndex:0] objectAtIndex:[self.dbManager.arrColumnNames indexOfObject:@"firstname"]];
self.txtLastname.text = [[results objectAtIndex:0] objectAtIndex:[self.dbManager.arrColumnNames indexOfObject:@"lastname"]];
self.txtAge.text = [[results objectAtIndex:0] objectAtIndex:[self.dbManager.arrColumnNames indexOfObject:@"age"]];
}
@end
=====
===================
#import <Foundation/Foundation.h>
@interface DBManager : NSObject
@property (nonatomic, strong) NSMutableArray *arrColumnNames;
@property (nonatomic) int affectedRows;
@property (nonatomic) long long lastInsertedRowID;
-(instancetype)initWithDatabaseFilename:(NSString *)dbFilename;
-(NSArray *)loadDataFromDB:(NSString *)query;
-(void)executeQuery:(NSString *)query;
@end
#import "DBManager.h"
#import <sqlite3.h>
@interface DBManager()
@property (nonatomic, strong) NSString *documentsDirectory;
@property (nonatomic, strong) NSString *databaseFilename;
@property (nonatomic, strong) NSMutableArray *arrResults;
-(void)copyDatabaseIntoDocumentsDirectory;
-(void)runQuery:(const char *)query isQueryExecutable:(BOOL)queryExecutable;
@end
@implementation DBManager
#pragma mark - Initialization
-(instancetype)initWithDatabaseFilename:(NSString *)dbFilename{
self = [super init];
if (self) {
// Set the documents directory path to the documentsDirectory property.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
self.documentsDirectory = [paths objectAtIndex:0];
// Keep the database filename.
self.databaseFilename = dbFilename;
// Copy the database file into the documents directory if necessary.
[self copyDatabaseIntoDocumentsDirectory];
}
return self;
}
#pragma mark - Private method implementation
-(void)copyDatabaseIntoDocumentsDirectory{
// Check if the database file exists in the documents directory.
NSString *destinationPath = [self.documentsDirectory stringByAppendingPathComponent:self.databaseFilename];
if (![[NSFileManager defaultManager] fileExistsAtPath:destinationPath]) {
// The database file does not exist in the documents directory, so copy it from the main bundle now.
NSString *sourcePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:self.databaseFilename];
NSError *error;
[[NSFileManager defaultManager] copyItemAtPath:sourcePath toPath:destinationPath error:&error];
// Check if any error occurred during copying and display it.
if (error != nil) {
NSLog(@"%@", [error localizedDescription]);
}
}
}
-(void)runQuery:(const char *)query isQueryExecutable:(BOOL)queryExecutable{
// Create a sqlite object.
sqlite3 *sqlite3Database;
// Set the database file path.
NSString *databasePath = [self.documentsDirectory stringByAppendingPathComponent:self.databaseFilename];
// Initialize the results array.
if (self.arrResults != nil) {
[self.arrResults removeAllObjects];
self.arrResults = nil;
}
self.arrResults = [[NSMutableArray alloc] init];
// Initialize the column names array.
if (self.arrColumnNames != nil) {
[self.arrColumnNames removeAllObjects];
self.arrColumnNames = nil;
}
self.arrColumnNames = [[NSMutableArray alloc] init];
// Open the database.
BOOL openDatabaseResult = sqlite3_open([databasePath UTF8String], &sqlite3Database);
if(openDatabaseResult == SQLITE_OK) {
// Declare a sqlite3_stmt object in which will be stored the query after having been compiled into a SQLite statement.
sqlite3_stmt *compiledStatement;
// Load all data from database to memory.
BOOL prepareStatementResult = sqlite3_prepare_v2(sqlite3Database, query, -1, &compiledStatement, NULL);
if(prepareStatementResult == SQLITE_OK) {
// Check if the query is non-executable.
if (!queryExecutable){
// In this case data must be loaded from the database.
// Declare an array to keep the data for each fetched row.
NSMutableArray *arrDataRow;
// Loop through the results and add them to the results array row by row.
while(sqlite3_step(compiledStatement) == SQLITE_ROW) {
// Initialize the mutable array that will contain the data of a fetched row.
arrDataRow = [[NSMutableArray alloc] init];
// Get the total number of columns.
int totalColumns = sqlite3_column_count(compiledStatement);
// Go through all columns and fetch each column data.
for (int i=0; i<totalColumns; i++){
// Convert the column data to text (characters).
char *dbDataAsChars = (char *)sqlite3_column_text(compiledStatement, i);
// If there are contents in the currenct column (field) then add them to the current row array.
if (dbDataAsChars != NULL) {
// Convert the characters to string.
[arrDataRow addObject:[NSString stringWithUTF8String:dbDataAsChars]];
}
// Keep the current column name.
if (self.arrColumnNames.count != totalColumns) {
dbDataAsChars = (char *)sqlite3_column_name(compiledStatement, i);
[self.arrColumnNames addObject:[NSString stringWithUTF8String:dbDataAsChars]];
}
}
// Store each fetched data row in the results array, but first check if there is actually data.
if (arrDataRow.count > 0) {
[self.arrResults addObject:arrDataRow];
}
}
}
else {
// This is the case of an executable query (insert, update, ...).
// Execute the query.
BOOL executeQueryResults = sqlite3_step(compiledStatement);
if (executeQueryResults == SQLITE_DONE) {
// Keep the affected rows.
self.affectedRows = sqlite3_changes(sqlite3Database);
// Keep the last inserted row ID.
self.lastInsertedRowID = sqlite3_last_insert_rowid(sqlite3Database);
}
else {
// If could not execute the query show the error message on the debugger.
NSLog(@"DB Error: %s", sqlite3_errmsg(sqlite3Database));
}
}
}
else {
// In the database cannot be opened then show the error message on the debugger.
NSLog(@"%s", sqlite3_errmsg(sqlite3Database));
}
// Release the compiled statement from memory.
sqlite3_finalize(compiledStatement);
}
// Close the database.
sqlite3_close(sqlite3Database);
}
#pragma mark - Public method implementation
-(NSArray *)loadDataFromDB:(NSString *)query{
// Run the query and indicate that is not executable.
// The query string is converted to a char* object.
[self runQuery:[query UTF8String] isQueryExecutable:NO];
// Returned the loaded results.
return (NSArray *)self.arrResults;
}
-(void)executeQuery:(NSString *)query{
// Run the query and indicate that is executable.
[self runQuery:[query UTF8String] isQueryExecutable:YES];
}
@end
答案 5 :(得分：-1)
enter code here
@interface ViewController ()
{ sqlite3 *dbref;
NSString *dbpath;
BOOL flag;}
@end
@implementation ViewController
@synthesize usertxt,passtxt;
- (void)viewDidLoad
{[super viewDidLoad];
NSString *docpath;
NSError *error;
NSArray *docarr=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSLog(@"directory path=%@",docarr);
docpath=[docarr objectAtIndex:0];
// docpath=[docpath stringByAppendingString:@"/simpledb.sqlite/"];
[[NSFileManager defaultManager] createDirectoryAtPath:docpath withIntermediateDirectories:YES attributes:nil error:&error];
dbpath=[[NSString alloc] initWithString:[docpath stringByAppendingString:@"/simpledb.sqlite"]];
NSFileManager *fmgr=[NSFileManager defaultManager];
if([fmgr fileExistsAtPath:dbpath]!=YES)
{ char *err;
const char *dbp=[dbpath UTF8String];
if(sqlite3_open(dbp, &dbref)==SQLITE_OK)
{ const char *crstmt = "CREATE TABLE IF NOT EXISTS Login(Login_id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,Username TEXT , Password TEXT)";
if(sqlite3_exec(dbref, crstmt, NULL, NULL,&err)!= SQLITE_OK)
{
}
sqlite3_close(dbref);
}}
// Do any additional setup after loading the view, typically from a nib.
}
-(IBAction)save:(id)sender
{[self validation];
if(flag==0)
{ sqlite3_stmt *statement;
NSString *insertSQL = [NSString stringWithFormat:@"insert into Login(Username,Password) values('%@','%@')",usertxt.text,passtxt.text];
const char *insert_stmt = [insertSQL UTF8String];
const char *dbp=[dbpath UTF8String];
if(sqlite3_open(dbp, &dbref)==SQLITE_OK)
{ sqlite3_prepare_v2(dbref, insert_stmt, -1, &statement, NULL);
if (sqlite3_step(statement) == SQLITE_DONE)
{
}
else
{
}}
sqlite3_finalize(statement);
sqlite3_close(dbref);
UIAlertView *objalert=[[UIAlertView alloc]initWithTitle:@"Inserted Successfully" message:nil delegate:nil cancelButtonTitle:@"cancel" otherButtonTitles:@"ok", nil];
[objalert show];
}}
-(IBAction)update:(id)sender
{ NSString *querySQL = [NSString stringWithFormat: @"update Login set Username='%@',Password='%@' where Login_id==1",usertxt.text,passtxt.text];
[self updateQuery:querySQL];}
-(BOOL)updateQuery:(NSString *)querySQL
{ sqlite3_stmt *statement;
const char *dbp=[dbpath UTF8String];
if(sqlite3_open(dbp, &dbref)==SQLITE_OK)
{ const char *query_stmt = [querySQL UTF8String];
if (sqlite3_prepare_v2(dbref, query_stmt, -1, &statement, NULL) == SQLITE_OK)
{ if (sqlite3_step(statement) == SQLITE_ROW)
{ sqlite3_reset(statement);
return YES;
} }
sqlite3_finalize(statement);
sqlite3_close(dbref)}
else
{ return NO;
}
return YES}
-(void)validation
{ NSString *valida;
// usertxt.text = [usertxt.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
// passtxt.text = [passtxt.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
if ([usertxt.text length]<2)
{flag=1;
valida=@"user Name : Minimum 2 Character req*\n";
UIAlertView *objalert=[[UIAlertView alloc]initWithTitle:nil message:valida delegate:nil cancelButtonTitle:nil otherButtonTitles:@"ok", nil];
[objalert show];
}
}
答案 6 :(得分：-1)
@imp flipsideviewcont
@syn entries
-(void)viewdidload
{
entries=[[nsmutablarray alloc]onit];
[self opendb];
nsstring *sql=[nsstring stringwithormat:@"select * from summery"];
sqlite_state *stat;
if(sqlite_prepare_v2(db,[sql utf8string],-1,&stat,nil)==sqlite_ok)
{while(sqlite_step(stat==sqlite_row))
{
char *field1=(char*)sqlite_column_text(stat,0);
nsstring *field1str=[[nsstring alloc]initwithutf8string:feild1];
char *field2=(char*)sqlite_column_text(stat,1);
nsstring *field2str=[[nsstring alloc]initwithutf8string:feild2];
nsstring *str=[[nsstring alloc]initwithformat:@"%@/%@-%@",field2str,field3str,field4str];
[entries addobjects:str];
}
-(nsstring*)filepath
{
nsarray *path=nssearchpathfordocumentry(nsdocumentdic,nsdomainmask,yes);
return([path objectAtindex:0]stringbyappingpathcomp:@"ss.sql");
}
-(void)opendb
{
if(sqlite_open([self filepath]utf8string,&db)!=sqlite_ok)
{sqlite_close(db);
nsasser(0,@"problem");
else
{
nslog(@"db open");
}
}
-(ibaction)done
{
[self.delegate flipsideviewcontrollerdidfinish :self];
}
cellforindex
{
cell.textlabel.text=[self.entries objectAtindex:indexpath:row];
}
===========================interface flipsideviewcont======
#import "sqlite3.h"
@class flipsideviewcontroller;
-(void)flipsideviewcontdidfinish:(flipsideviewcontroller*)controller;
@end
@interface flipsideviewcont:viewcont
{
sqlite *db;
}
@property()id<flipsideviewcontrollerdelegate>delegate;
@property()nsmutablearray *entries;
-(void)opendb;
-(nsstring*)filepath;
}
======================
@interface mainviewcontroller:viewcontroller<flipsideviewcontrollerdelegate>
{sqlite3 *db;}
@property()iboutlet nstextfiled *systext,*diatext,*commenttxt;
@property(readpnly,non)nsdate *currentdate;
-(void)createTable:(nsstring*)tablename
withfield1:(nsstring*)field1 withfield2:(nsstring*)field2 withfield3:(nsstring*)field3 withfield4:(nsstring*)field4;
-(ibaction)saveentry;
@implement mainview
-(void)createTable:(nsstring*)tablename
withfield1:(nsstring*)field1 withfield2:(nsstring*)field2 withfield3:(nsstring*)field3 withfield4:(nsstring*)field4
{
char *err;
nastring *sql=[nsstring stringwithformat:@"crete table if nat exist '%@'('%@'""text primary key,'%@' int,'%@' int,'%@'text);",tablename,field1,field2,field3,field4);
if(sqlite_exe(db,[sql utf*string],null,null,&err)!=sqlite_ok)
{sqlite_close(db);
}}
-(void)opendb;
{}
-(nsstring*)filepath()
-(void)viewdidload
{[self opendb];
[self createtable:@"summery" withfield:@"thedate withfield2:@"systonic"];}
-(ibaction)saveenrty
{
int sys=[systext.text intvalue];
int dia=[diatext.text intvalue];
nsstring *comm=comtext.tex;
nsdate *thedate=[nsdate date];
nsstring *sql=[nsstring stringwithformat:@"insert into summery('sys','thedate','dia',''com')values('%@','%d','%d','%@')",thedate,sys,dia,comm];
{sqlite_close(db);
}
systext.text="";
didtext.text="";
commtext.text="";
}
}
-(void)prepareforsegue
{if([[segue identifier]isequalto string:@"showwale");
{[[segue destinationviewcont]setdelegate:self];
}
}
-(void)flipsideviewcontdidfinish
{[self dismissviewcontroller:yes];
}
}
}