Ios 使用UISearchBar Filterable TableView
我对objective c非常陌生,希望这一切都有意义。我在YouTube上学习了这个教程。这个程序不起作用。 你可以从这里下载这个项目。指导我Ios 使用UISearchBar Filterable TableView,ios,iphone,objective-c,uitableview,uisearchbar,Ios,Iphone,Objective C,Uitableview,Uisearchbar,我对objective c非常陌生,希望这一切都有意义。我在YouTube上学习了这个教程。这个程序不起作用。 你可以从这里下载这个项目。指导我 要使此程序正常运行。使用以下教程是获得答案和github中示例代码的简单方法,链接为(void)searchBarTextDidBeginEditing:(UISearchBar*)searchBar;//文本开始编辑时调用 { 如果(搜索) { 搜索=是; LetsUserElectrow=是; } 其他的 { 搜索=否; LetsUserElect
要使此程序正常运行。使用以下教程是获得答案和github中示例代码的简单方法,链接为(void)searchBarTextDidBeginEditing:(UISearchBar*)searchBar;//文本开始编辑时调用 { 如果(搜索) { 搜索=是; LetsUserElectrow=是; } 其他的 { 搜索=否; LetsUserElectrow=是; } //self.tbl_searchtable.scrollEnabled=否; } -(无效)搜索栏取消按钮选中:(UISearchBar*)搜索栏 { 搜索=否; LetsUserElectrow=是; searchBar.text=@; [搜索栏辞职FirstResponder]; [self.tbl_searchuser reloadData]; } -(NSIndexPath*)tableView:(UITableView*)tableView将选择Rowatindexpath:(NSIndexPath*)indexPath { 如果(Letsuserseleow) 返回索引XPath; 其他的 返回零; } -(无效)搜索栏:(UISearchBar*)搜索栏文本更改:(NSString*)搜索文本;//文本更改时调用(包括清除) { _tbl_searchuser.hidden=FALSE; [CopyListofItemRemoveAllObjects]; 如果([searchText length]>0) { 搜索=是; LetsUserElectrow=是; self.tbl_searchuser.scrollEnabled=是; [自搜索表视图]; } 其他的 { 搜索=否; Letsuserseleow=否; [_searchbar辞职FirstResponder]; //self.tbl_searchtable.scrollEnabled=否; } [项目保留副本列表]; [self.tbl_searchuser reloadData]; } -(无效)searchBarSearchButtonClicked:(UISearchBar*)搜索栏;//按下键盘搜索按钮时调用 { [自我隐藏]; //[自搜索表视图]; } -(无效)searchtableview { _tbl_searchuser.frame=CGRectMake(0,65,320,140); NSString*searchText=\u searchbar.text; NSLog(@“%@”,阵列用户); 对于(int l=0;l<[array_allusers count];l++) { NSString*tempstr=[[array_allusers objectAtIndex:l]objectForKey:@“username”]; NSRange rngstr=[tempstr rangeOfString:searchText选项:(NSAnchoredSearch | NSCaseInsensitiveSearch)]; 如果(rngstr.length>0) { [copylistofitem addObject:[array_allusers objectAtIndex:l]; [项目保留副本列表]; } } NSLog(@“%@”,copylistofitem); NSSortDescriptor*排序=[NSSortDescriptor SortDescriptor WithKey:@“用户名”升序:是]; [copylistofitem sortUsingDescriptors:[NSArray arrayWithObject:sort]]; [_tbl_searchuser reloadData]; } -(无效)隐藏 { [_searchbar辞职FirstResponder]; _tbl_searchuser.frame=CGRectMake(0,65320274); } -(NSInteger)表视图:(UITableView*)表视图行数节:(NSInteger)节 { 如果(搜索和[_searchbar.text length]>0) 返回[copylistofitem count]; 其他的 返回数组; } NSMutableArray*copylistofitem; 布尔搜索; 布勒·莱瑟塞洛;
在视图控制器.h文件中 进口
最后在视图顶部添加一个搜索栏显示控制器u要使用uitableviewyes在搜索栏中搜索内容。.我要在UITableViews中搜索搜索栏中的内容这不是一个平均值,您的意思只是视图控制器,只需自定义编码,如果您选择了did select行中的单元格,那时候你需要分配视图控制器并推送对象,它很简单如果将本教程转换为xib很简单请上传它只是为了使用uitableview在搜索栏中搜索内容的功能。因为我只是初始学习者。嗯,k,等等,有任何疑问,回复o在视图控制器上粘贴代码显示tableview…当我添加搜索栏时…我设置了与文件所有者连接的出口代理…并将出口视图引用为文件所有者..它不显示搜索栏..只添加搜索栏和显示控制器,不提供出口,如果我只是简单地将搜索栏添加到viewcontroller,它会自动检测到Bro。执行会停止,异常为:test[1170:a0b]***由于未捕获的异常“NSInternalInconsistencyException”而终止应用程序,原因:'-[UIViewController\u loadViewFromNibNamed:bundle:]加载了“TESTBIDViewController”nib,但未设置视图出口。“***第一次抛出调用堆栈:……..u被复制粘贴我的代码,其k,只需将.h文件TESTBIDViewController替换为RecipeBookViewController
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar; // called when text starts editing
{
if (searching)
{
searching=YES;
letsUserSelectRow=YES;
}
else
{
searching=NO;
letsUserSelectRow=YES;
}
// self.tbl_searchtable.scrollEnabled=NO;
}
- (void)searchBarCancelButtonClicked:(UISearchBar *) searchBar
{
searching = NO;
letsUserSelectRow = YES;
searchBar.text = @"";
[searchBar resignFirstResponder];
[self.tbl_searchuser reloadData];
}
-(NSIndexPath *)tableView :(UITableView *)theTableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if(letsUserSelectRow)
return indexPath;
else
return nil;
}
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText; // called when text changes (including clear)
{
_tbl_searchuser.hidden=FALSE;
[copylistofitem removeAllObjects];
if([searchText length] > 0)
{
searching = YES;
letsUserSelectRow = YES;
self.tbl_searchuser.scrollEnabled = YES;
[self searchtableview];
}
else
{
searching = NO;
letsUserSelectRow= NO;
[_searchbar resignFirstResponder];
//self.tbl_searchtable.scrollEnabled = NO;
}
[copylistofitem retain];
[self.tbl_searchuser reloadData];
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar; // called when keyboard search button pressed
{
[self hide];
//[self searchtableview];
}
-(void)searchtableview
{
_tbl_searchuser.frame=CGRectMake(0, 65, 320, 140);
NSString *searchText = _searchbar.text;
NSLog(@"%@",array_allusers);
for(int l = 0; l < [array_allusers count]; l++)
{
NSString *tempstr = [[array_allusers objectAtIndex:l] objectForKey:@"username"];
NSRange rngstr = [tempstr rangeOfString:searchText options:(NSAnchoredSearch | NSCaseInsensitiveSearch)];
if(rngstr.length > 0)
{
[copylistofitem addObject:[array_allusers objectAtIndex:l]];
[copylistofitem retain];
}
}
NSLog(@"%@",copylistofitem);
NSSortDescriptor *sort = [NSSortDescriptor sortDescriptorWithKey:@"username" ascending:YES];
[copylistofitem sortUsingDescriptors:[NSArray arrayWithObject:sort]];
[_tbl_searchuser reloadData];
}
-(void)hide
{
[_searchbar resignFirstResponder];
_tbl_searchuser.frame=CGRectMake(0, 65, 320, 274);
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (searching && [_searchbar.text length] > 0)
return [copylistofitem count];
else
return yourarray;
}
NSMutableArray *copylistofitem;
BOOL searching;
BOOL letsUserSelectRow;
@interface RecipeBookViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>
{
NSArray *recipes; //this is used for load the data to table
NSArray *searchResults; //this is used for search the particular name in uitableview
}
@property (nonatomic, strong) UITableView *tableView; //progrmatically allocationg the tableview
@synthesize tableView; //this is used accessing the name in more than one time
- (void)viewDidLoad
{
[super viewDidLoad];
// Initialize table data
searchResults=[NSArray alloc]init];
recipes = [NSArray arrayWithObjects:@"Egg Benedict", @"Mushroom Risotto", @"Full Breakfast", @"Hamburger", @"Green Tea", @"Thai Shrimp Cake", @"Angry Birds Cake", @"Ham and Cheese Panini", nil];
//create the tableview
tableView =[[UITableView alloc]initWithFrame:CGRectMake(0, 163, 320, 317)];
tableView.delegate=self;
tableView.dataSource=self;
[self. tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
[self.view addSubview: tableView];
}
//this is for loading the table data
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (tableView == self.searchDisplayController.searchResultsTableView) {
return [searchResults count];
} else {
return [recipes count];
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
if (tableView == self.searchDisplayController.searchResultsTableView) {
cell.textLabel.text = [searchResults objectAtIndex:indexPath.row];
} else {
cell.textLabel.text = [recipes objectAtIndex:indexPath.row];
}
return cell;
}
//this is for search bar delegate method for filtering
- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
NSPredicate *resultPredicate = [NSPredicate
predicateWithFormat:@"SELF contains[cd] %@",
searchText];
searchResults = [recipes filteredArrayUsingPredicate:resultPredicate];
}
#pragma mark - UISearchDisplayController delegate methods
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller
shouldReloadTableForSearchString:(NSString *)searchString
{
[self filterContentForSearchText:searchString
scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
objectAtIndex: [self.searchDisplayController.searchBar
selectedScopeButtonIndex]]];
return YES;
}