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POHow to reset array in multiview iphone app
 

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  1. POHow to reset array in multiview iphone app
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    <p>I am trying to have a tableview that leads to another tableview whose list items depend on the first view. I have the database set up properly and my problem is that when I select one item on the first page and go to the second view for the first time it works fine but when I return to the first page and go back to the second view again the list still has the old values loaded with new ones. Is there a way to destroy the array and recreate it every time the second view is loaded? Where would I do this?</p> <p>Here is where my array is initialized in the delegate:</p> <pre><code> - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { [self copyDatabaseIfNeeded]; organArray = [[NSMutableArray alloc] init]; procedureArray = [[NSMutableArray alloc] init]; [Organ getInitialDataToDisplay:[self getDBPath]]; [window addSubview:navigationController.view]; [window makeKeyAndVisible]; return YES; } </code></pre> <p>Here is where the data is added to the array in my custom class:</p> <pre><code> + (void) getDatabase:(NSString *)dbPath WithOrganID:(NSNumber *)organID { RadiologyAppAppDelegate *appDelegate = (RadiologyAppAppDelegate *)[[UIApplication sharedApplication] delegate]; if(sqlite3_open([dbPath UTF8String],&amp;database) == SQLITE_OK){ const char *sql = "select * from Organ"; sqlite3_stmt *selectstmt; if(sqlite3_prepare_v2(database, sql, -1, &amp;selectstmt, NULL) == SQLITE_OK){ while (sqlite3_step(selectstmt) == SQLITE_ROW) { NSInteger primaryKey = sqlite3_column_int(selectstmt, 0); Procedure *procedureObj = [[Procedure alloc] initWithPrimaryKey:primaryKey]; procedureObj.procedureName = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt,1)]; procedureObj.procedureID = sqlite3_column_int(selectstmt,0); [appDelegate.procedureArray addObject: procedureObj]; [procedureObj release]; } } } else sqlite3_close(database); } </code></pre> <p>Finally, here is my view controller:</p> <pre><code> - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } Procedure *procedureObj = [appDelegate.procedureArray objectAtIndex:indexPath.row]; PVCprocedureObj = appDelegate.procedureArray; cell.textLabel.text = procedureObj.procedureName; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; } </code></pre> <p>Thanks for the help!</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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