我有一个用于自动完成UITextView的连接。UITableView
问题是表格显示格式不正确，我有以下问题：
详细信息不按顺序排列（例如：如果我按 a 它不显示以第一个开头的单词，它会随意显示）。
我的 txt 文件中有三种单词（如 Apple、A pple、A.pple）；在我的表格中，如果我用字母“Ap”开始搜索，它只显示 A pple 和 A.pple，但不显示 Apple，即使它显示 A pple，直到我写“A P”然后它停止显示单词。
任何人都可以让我知道该怎么做吗？
请找到我的代码供您参考：
抱歉发布所有代码，我这样做是因为我找不到它出错了！！！
- (void) finishedSearching {
[usernameField resignFirstResponder];
autoCompleteTableView.hidden = YES;
}
- (void)viewDidLoad
{
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"employee.txt" ofType:nil];
NSData* data = [NSData dataWithContentsOfFile:filePath];
//Convert the bytes from the file into a string
NSString* string = [[NSString alloc] initWithBytes:[data bytes] length:[data length] encoding:NSUTF8StringEncoding];
//Split the string around newline characters to create an array
NSString* delimiter = @"\n";
NSArray *item = [string componentsSeparatedByString:delimiter];
elementArray = [[NSMutableArray alloc] initWithArray:item];
usernameField = [[UITextField alloc] initWithFrame:CGRectMake(204, 405, 264, 31)];
usernameField.borderStyle = 3; // rounded, recessed rectangle
usernameField.autocorrectionType = UITextAutocorrectionTypeNo;
usernameField.autocapitalizationType = UITextAutocapitalizationTypeNone;
usernameField.textAlignment = UITextAlignmentLeft;
usernameField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
usernameField.returnKeyType = UIReturnKeyDone;
usernameField.font = [UIFont fontWithName:@"Trebuchet MS" size:20];
usernameField.textColor = [UIColor blackColor];
usernameField.placeholder=@"Login id";
[usernameField setDelegate:self];
[self.view addSubview:usernameField];
autoCompleteArray = [[NSMutableArray alloc] init];
autoCompleteTableView = [[UITableView alloc] initWithFrame:CGRectMake(204, 450, 264, tableHeight) style:UITableViewStylePlain];
autoCompleteTableView.delegate = self;
autoCompleteTableView.dataSource = self;
autoCompleteTableView.scrollEnabled = YES;
autoCompleteTableView.hidden = YES;
autoCompleteTableView.rowHeight = tableHeight;
[self.view addSubview:autoCompleteTableView];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)searchAutocompleteEntriesWithSubstring:(NSString *)substring {
// Put anything that starts with this substring into the autoCompleteArray
// The items in this array is what will show up in the table view
[autoCompleteArray removeAllObjects];
for(NSString *curString in elementArray) {
NSRange substringRangeLowerCase = [curString rangeOfString:[substring lowercaseString]];
NSRange substringRangeUpperCase = [curString rangeOfString:[substring uppercaseString]];
if (substringRangeLowerCase.length != 0 || substringRangeUpperCase.length != 0) {
[autoCompleteArray addObject:curString];
}
}
autoCompleteTableView.hidden = NO;
[autoCompleteTableView reloadData];
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[self.view endEditing:YES];
[super touchesBegan:touches withEvent:event];
[self finishedSearching];
}
#pragma mark UITextFieldDelegate methods
// Close keyboard when Enter or Done is pressed
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
BOOL isDone = YES;
if (isDone) {
[self finishedSearching];
return YES;
} else {
return NO;
}
}
// String in Search textfield
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSString *substring = [NSString stringWithString:textField.text];
substring = [substring stringByReplacingCharactersInRange:range withString:string];
[self searchAutocompleteEntriesWithSubstring:substring];
return YES;
}
#pragma mark UITableViewDelegate methods
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger) section {
//Resize auto complete table based on how many elements will be displayed in the table
if (autoCompleteArray.count >=3) {
autoCompleteTableView.frame = CGRectMake(204, 450, 264, tableHeight*3);
return autoCompleteArray.count;
}
else if (autoCompleteArray.count == 2) {
autoCompleteTableView.frame = CGRectMake(204, 450, 264, tableHeight*2);
return autoCompleteArray.count;
}
else {
autoCompleteTableView.frame = CGRectMake(204, 450, 264, tableHeight);
return autoCompleteArray.count;
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = nil;
static NSString *AutoCompleteRowIdentifier = @"AutoCompleteRowIdentifier";
cell = [tableView dequeueReusableCellWithIdentifier:AutoCompleteRowIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:AutoCompleteRowIdentifier] ;
}
cell.textLabel.text = [autoCompleteArray objectAtIndex:indexPath.row];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
usernameField.text = selectedCell.textLabel.text;
usernameField.text=[usernameField.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
NSLog(@"%@",usernameField.text);
[self finishedSearching];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
提前致谢！！！！