我正在尝试按字母顺序实现标题并在其上实现搜索。但不显示所有数据，仅显示一个字母的标题并仅显示其值。并且在搜索中也不显示除一个字母之外的值。以下是我使用的代码。
-(void)getData
{
NSLog(@"get data:%@", self.mGetDataDict);
NSLog(@"count:%d", [self.mGetDataDict count]);
NSString *getStatus = [self.mGetDataDict valueForKey:@"status"];
NSArray *dictAllKeys = [[NSArray alloc]init];
NSMutableArray *getAllDict = [[NSMutableArray alloc] init];
NSLog(@"getfinalStatus----------%@",getStatus);
if([getStatus isEqual:[NSNumber numberWithBool:0]])
{
NSLog(@"status:%@", getStatus);
}
else
{
dictAllKeys = [self.mGetDataDict allKeys];
for(int i=1; i<=[dictAllKeys count]; i++)
{
getAllDict = [self.mGetDataDict valueForKey:[NSString stringWithFormat:@"%d",i]];
[self.mArrName addObject:[getAllDict valueForKey:@"name"]];
[self.mArrPImg addObject:[getAllDict valueForKey:@"profileImage"]];
if([seatMapStatus isEqualToString:@"yes"])
{
[self.mArrIng addObject:[getAllDict valueForKey:@"ing"]];
}
stateIndex = [[NSMutableArray alloc] init];
for (int i=0; i<[self.mArrName count]-1; i++){
//---get the first char of each state---
char alphabet = [[self.mArrName objectAtIndex:i] characterAtIndex:0];
NSString *uniChar = [NSString stringWithFormat:@"%c", alphabet];
//---add each letter to the index array---
if (![stateIndex containsObject:uniChar])
{
[stateIndex addObject:uniChar];
}
}
}
}
NSLog(@"index:%@", stateIndex);
NSLog(@"name:%@", self.mArrName);
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 60;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [stateIndex count];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSLog(@"copy arr:%d", [copyArr count]);
if(searching)
{
NSString *alphabet = [stateIndex objectAtIndex:section];
//---get all states beginning with the letter---
NSPredicate *predicate =
[NSPredicate predicateWithFormat:@"SELF beginswith[c] %@", alphabet];
NSArray *states = [copyArr filteredArrayUsingPredicate:predicate];
//---return the number of states beginning with the letter---
return [states count];
// return [copyArr count];
}
else{
NSString *alphabet = [stateIndex objectAtIndex:section];
//---get all states beginning with the letter---
NSPredicate *predicate =
[NSPredicate predicateWithFormat:@"SELF beginswith[c] %@", alphabet];
NSArray *states = [self.mArrName filteredArrayUsingPredicate:predicate];
//---return the number of states beginning with the letter---
return [states count];
}
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return [stateIndex objectAtIndex:section];
}
- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString*)title atIndex:(NSInteger)index
{
return index;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell;
cell = [self.mEventMemTableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
else{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
NSString *imageUrlString = [self.mArrPImg objectAtIndex:indexPath.row];
asyncImageView = [[AsyncImageView alloc]initWithFrame:CGRectMake(10, 5, 50, 45)];
[asyncImageView loadImageFromURL:[NSURL URLWithString:imageUrlString]];
[cell.contentView addSubview:asyncImageView];
UILabel *lblName = [[UILabel alloc]initWithFrame:CGRectMake(80, 15, 150, 30)];
if([copyArr count] >0)
{
//---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 = [copyArr filteredArrayUsingPredicate:predicate];
if ([states count]>0) {
//---extract the relevant state from the states object---
//NSString *cellValue = [states objectAtIndex:indexPath.row];
// cell.textLabel.text = cellValue;
lblName.text = [states objectAtIndex:indexPath.row];
}
}
else{
//---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 = [self.mArrName filteredArrayUsingPredicate:predicate];
if ([states count]>0) {
//---extract the relevant state from the states object---
//NSString *cellValue = [states objectAtIndex:indexPath.row];
// cell.textLabel.text = cellValue;
lblName.text = [states objectAtIndex:indexPath.row];
}
}
[cell addSubview:lblName];
return cell;
}
- (void) searchBarTextDidBeginEditing:(UISearchBar *)theSearchBar {
searching = YES;
}
- (void)searchBar:(UISearchBar *)theSearchBar textDidChange:(NSString *)searchText {
//Remove all objects first.
[copyArr removeAllObjects];
if([searchText length]) {
searching = YES;
//letUserSelectRow = YES;
//self.tableView.scrollEnabled = YES;
[self searchTableView];
}
else {
searching = NO;
}
[self.mEventMemTableView reloadData];
}
- (void) searchBarSearchButtonClicked:(UISearchBar *)theSearchBar {
[self.mSearchBar resignFirstResponder];
[self searchTableView];
}
- (void) searchTableView {
NSString *searchText = self.mSearchBar.text;
NSMutableArray *searchArray = [[NSMutableArray alloc] init];
for (NSString *sTemp in self.mArrName)
{
NSRange titleResultsRange = [sTemp rangeOfString:searchText options:NSCaseInsensitiveSearch];
if (titleResultsRange.length)
[copyArr addObject:sTemp];
}
searchArray = nil;
}
请指导以上内容。提前谢谢。
答案 0 :(得分：0)
UILocalizedIndexedCollation class
和
configureSections方法
这对你来说是一个参考，深入研究它，一切都会干净整洁：）
首先执行部分标题（搜索之前）