标题查看标题被继承的控制器覆盖
-
26-10-2019 - |
题
我正在尝试访问一个视图控制器中声明的属性和对象到我需要它们的页面。我的意思是,子分类控制器的导航栏和标头视图正在显示在用过的视图中。当我删除[Super ViewDidload]方法时,需要显示的VLAUE不会显示显示。控制器正在显示。我确实使用以下语句进行了子类:我还发布了代码:
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 @"";
}
但是不起作用,请帮助我摆脱困境,谢谢本先生的答案:)
另外,我还有另一个问题,如果可能的话,也请检查一下,请提前感谢:)
解决方案
您的描述有点令人困惑,但是听起来您的超类正在设置标题/按钮信息之后,将其设置在子类中。重新排序您的ViewDidload,因此[Super ViewDidload];首先是该函数,然后将在超类设置之后应用任何子类更改。
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