我试图做多段(如联系人应用程序)的表一切都很顺利,我已经创建了每个部分显示表示此section..the问题字符的顶级定制节头是我希望它像联系究竟在何处头停留在顶部,直到它下一个报头崩溃......怎么能这样呢
我使用下面的代码(以使它更容易为你找出
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return [stateIndex count];
}
- (UIView *)tableView:(UITableView *)aTableView viewForHeaderInSection:(NSInteger)section
{
UILabel *sectionHeader = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 200, 40)];
sectionHeader.backgroundColor = [UIColor clearColor];
sectionHeader.font = [UIFont boldSystemFontOfSize:18];
sectionHeader.textColor = [UIColor whiteColor];
sectionHeader.text = [stateIndex objectAtIndex:section];
sectionHeader.textAlignment=UITextAlignmentCenter;
return sectionHeader;
}
//---set the index for the table---
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
return stateIndex;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
//---get the letter in each section; e.g., A, B, C, etc.---
NSString *alphabet = [stateIndex objectAtIndex:section];
//---get all states beginning with the letter---
NSPredicate *predicate =
[NSPredicate predicateWithFormat:@"SELF beginswith[c] %@", alphabet];
NSArray *states = [resultPoets filteredArrayUsingPredicate:predicate];
//---return the number of states beginning with the letter---
return [states count];
}
- (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
PoemsCell *cell = [aTableView dequeueReusableCellWithIdentifier:CellIdentifier];
int row = indexPath.row;
//---get the letter in the current section---
NSString *alphabet = [stateIndex objectAtIndex:[indexPath section]];
//---get all states beginning with the letter---
NSPredicate *predicate =
[NSPredicate predicateWithFormat:@"SELF beginswith[c] %@", alphabet];
NSArray *states = [resultPoets filteredArrayUsingPredicate:predicate];
if ([states count]>0) {
//---extract the relevant state from the states object---
NSString *cellValue = [states objectAtIndex:row];
cell.poemText.text = cellValue;
}
return cell;
}