4
我有一個tableView作爲我的第一個視圖的程序。我也實現了（或至少試圖）在視圖頂部的搜索欄。用了幾個小時來搜索解決方案，但沒有獲得積極的結果。無效的參數類型爲一元表達式
#import "FirstViewController.h"
#import "NSDictionary-MutableDeepCopy.h"
@implementation FirstViewController
@synthesize listData, table, search, allNames, names, keys;
#pragma mark -
#pragma mark Custom Methods
- (void)resetSearch {
NSMutableDictionary *allNamesCopy = [self.allNames mutableDeepCopy];
self.names = allNamesCopy;
[allNamesCopy release];
NSMutableArray *keyArray = [[NSMutableArray alloc] init];
[keyArray addObjectsFromArray:[[self.allNames allKeys]
sortedArrayUsingSelector:@selector(compare:)]];
self.keys = keyArray;
[keyArray release];
}
-(void)handleSearchForTerm:(NSString *)searchTerm {
NSMutableArray *sectionsToRemove = [[NSMutableArray alloc] init];
[self resetSearch];
for (NSString *key in self.keys) {
NSMutableArray *array = [names valueForKey:key];
NSMutableArray *toRemove = [[NSMutableArray alloc] init];
for (NSString *name in listData) {
if ([name rangeOfString:searchTerm
options:NSCaseInsensitiveSearch].location == NSNotFound)
[toRemove addObject:name];
}
if ([array count] == [toRemove count])
[sectionsToRemove addObject:key];
[array removeObjectsInArray:toRemove];
[toRemove release];
}
[self.keys removeObjectsInArray:sectionsToRemove];
[sectionsToRemove release];
[table reloadData];
}
- (void)viewDidLoad {
NSString *path = [[NSBundle mainBundle] pathForResource:@"sortednames" ofType:@"plist"];
NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:path];
self.names = dict;
self.allNames = dict;
[dict release];
[self resetSearch];
[table reloadData];
[table setContentOffset:CGPointMake(0.0, 44.0)animated:NO];
self.parentViewController.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"background.png"]];
NSArray *array = [[NSArray alloc] initWithObjects:
// A larger amount of objects here.
self.listData = array;
[array release];
[super viewDidLoad];
}
/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) {
// Custom initialization
}
return self;
}
*/
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/
/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
}
*/
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
self.listData = nil;
self.table = nil;
self.search = nil;
self.allNames = nil;
self.names = nil;
self.keys = nil;
}
- (void)dealloc {
[listData release];
[search release];
[table release];
[allNames release];
[keys release];
[names release];
[super dealloc];
}
#pragma mark -
#pragma mark Table View Data Source Methods
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return ([keys count] > 0) ? [keys count] : 1;
}
- (NSInteger)tableView:(UITableView *)aTableView
numberOfRowsInSection: (NSInteger)section {
return [self.listData count];
if ([keys count] == 0)
return 0;
NSString *key = [keys objectAtIndex:section];
NSArray *nameSection = [names objectForKey:key];
return [nameSection count];
}
- (UITableViewCell *) extracted_method: (UITableViewCell *) cell {
return cell;
}
- (UITableViewCell *)tableView:(UITableView *)aTableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger section = [indexPath section];
NSUInteger row = [indexPath row];
NSString *key = [keys objectAtIndex:section];
NSArray *nameSection = [names objectForKey:key];
static NSString *sectionsTableIdentifier = @"sectionsTableIdentifier";
UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:
sectionsTableIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier: sectionsTableIdentifier] autorelease];
}
cell.backgroundColor = [UIColor clearColor];
cell.textColor = [UIColor whiteColor];
cell.detailTextLabel.textColor = [UIColor whiteColor];
cell.text = [nameSection objectAtIndex:row];
[self extracted_method: cell].text = [listData objectAtIndex:row];
return cell;
}
- (NSString *)tableView:(UITableView *)tableView
titleForHeaderInSection:(NSInteger)section {
if ([keys count] == 0)
return nil;
NSString *key = [keys objectAtIndex:section];
return key;
}
-(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
return keys;
}
#pragma mark -
#pragma mark Table View Delegate Methods
- (NSIndexPath *)tableView:(UITableView *)tableView
willSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[search resignFirstResponder];
return indexPath;
}
#pragma mark -
#pragma mark Search Bar Delegate Methods
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
NSString *searchTerm = [searchBar text];
[self handleSearchForTerm:searchTerm];
}
- (void)searchBar:(UISearchBar *)searchBar
textDidChange:(NSString *)searchTerm {
if ([searchTerm length] == 0) {
[self resetSearch];
[table reloadData];
return;
}
[self handleSearchForTerm:searchTerm];
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
search.text = @"";
[self resetSearch];
[table reloadData];
[searchBar resignFirstResponder];
}
@end
好吧夥計們。我的問題是，這沒有得到搜索功能的工作。此外，我收到交叉口信號SIGABRT在這一行：
NSString *key = [keys objectAtIndex:section];
所以我需要有兩件事情幫助：
1：我需要獲得SIGABRT了。
錯誤日誌消息：*終止應用程序由於未捕獲的異常 'NSRangeException'，原因： '* - [NSMutableArray的objectAtIndex：]： 索引0超出界限爲空數組'
那就是我沒有在鍵中存儲任何數據。我會怎麼做？我會存儲什麼？
2：要搜索功能在我的listData數組中搜索！
在此先感謝 - 希望你能幫助！
錯誤消息表明編譯器認爲它在看到「 - 」引入您的方法時正在解析表達式。檢查你的括號上面這點匹配是否正確。如果他們發佈更多的上下文代碼。 – CRD 2011-03-31 20:57:40
增加了更多代碼。沒有完全得到你的意思:) – Mathias 2011-03-31 21:04:13