Header View title getting overwritten with Inherited controller
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26-10-2019 - |
سؤال
I am trying to access the properties and objects that are declared in one view controller in to the page where I need them.Did so by subclassing the view controller.But I have got a problem here,the inherited controller is making the controller overwritten.I mean the navigation bar and header view of the subclassed controller is getting displayed in the used view.When I remove the [super viewDidLoad] method,the vlaues which needs to be displayed is not getting displayed.Also the header view of the inherited view controller is getting displayed.I did subclassing using the following statement:I am also posting the code:
ERViewEditController class:
@interface ERViewEditController:ERAddReminderController
{
UITableView *theTable;
}
@property(nonatomic,retain) IBOutlet UITableView *theTable;
@end
@implementation ERViewEditController
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
self.view.backgroundColor = [[UIColor alloc]initWithPatternImage:[UIImage imageNamed:@"bg.jpg"]];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:self action:@selector(pop:)];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"Edit" style:UIBarButtonItemStylePlain target:self action:@selector(edit:)];
[self setTitle:@"Reminders Listed"];
[self.theTable reloadData];
[super viewDidLoad];
}
- (UITableViewCell *)tableView:(UITableView *)view cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellId = [NSString stringWithFormat:@"S%1dR%1d",indexPath.section,indexPath.row];
UITableViewCell *cell = (UITableViewCell *)[view dequeueReusableCellWithIdentifier:CellId];
UILabel *label1 = [[[UILabel alloc]initWithFrame:CGRectMake(54, 3, 100, 40)]autorelease];
label1.backgroundColor = [UIColor clearColor];
label1.textColor = [UIColor whiteColor];
UILabel *label2 = [[[UILabel alloc]initWithFrame:CGRectMake(119, 3, 100, 40)]autorelease];
label2.backgroundColor = [UIColor clearColor];
label2.textColor = [UIColor whiteColor];
UILabel *label3 = [[[UILabel alloc]initWithFrame:CGRectMake(198, 3, 100, 40)]autorelease];
label3.backgroundColor = [UIColor clearColor];
label3.textColor = [UIColor whiteColor];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellId] autorelease];
view.backgroundColor = [UIColor clearColor];
cell.backgroundColor = [[UIColor alloc]initWithPatternImage:[UIImage imageNamed:@"reminderbutton.png"]];
if (indexPath.section == 0)
{
UILabel *label = [[[UILabel alloc]initWithFrame:CGRectMake(20, 3, 280, 40)]autorelease];
label.backgroundColor = [UIColor clearColor];
label.text = @" ID Name Event Date";
label.textColor = [UIColor cyanColor];
[cell addSubview:label];
}
else if (indexPath.section == 1)
{
const char *dbpath = [databasePath UTF8String];
sqlite3_stmt *statement;
if (sqlite3_open(dbpath, &remindersDB) == SQLITE_OK)
{
NSString *querySQL = [NSString stringWithFormat:@"SELECT name,event,date FROM reminders"];
const char *query_stmt = [querySQL UTF8String];
if (sqlite3_prepare_v2(remindersDB ,query_stmt , -1, &statement, NULL) == SQLITE_OK)
{
if (sqlite3_step(statement) == SQLITE_ROW)
{
NSString *nameField = [[NSString alloc] initWithUTF8String:(const char *) sqlite3_column_text(statement, 0)];
NSString *eventField = [[NSString alloc]initWithUTF8String:(const char *) sqlite3_column_text(statement, 1)];
NSString *dateField = [[NSString alloc]initWithUTF8String:(const char *) sqlite3_column_text(statement, 2)];
[nameField stringByAppendingString:eventField];
label1.text = nameField;
label2.text = eventField;
label3.text = dateField;
}
sqlite3_finalize(statement);
}
sqlite3_close(remindersDB);
}
switch (indexPath.row)
{
case 0:
[cell addSubview:label1];
[cell addSubview:label2];
[cell addSubview:label3];
break;
default:
break;
}
}
}
return cell;
}
My navigation bar issue is resolved,now I have still been facing the header view title issue,I used the following code to fix:
-(NSString *)tableView:(UITableView *)atableView titleForHeaderInSection:(NSInteger)section
{
return @"";
}
but not working,please help me to get out of this,thanks Mr.Ben for the answer :)
Also I have another problem,please check that too if possible,thanks in advance :)
Populate the table view sections with rows of table in sqlite database in an order
المحلول
Your description is a bit confusing, but it sounds like your superclass is setting a title/button information after you set it in the subclass. Re-order your viewDidLoad so the [super viewDidLoad]; is first in the function, any subclass changes will then be applied after the superclass sets it.