在我的应用程序中我使用Parse.com作为数据库和SearchBarDisplayController上数据的持有者进行研究。我准备了一个以下准备我的表，以便在另一个视图控制器中发送数据单元并完美地工作......现在我遇到了问题......
如何为SearchDisplayController创建“prepareforsegue”，以激活搜索结果的单元格？
在这里，您可以看到我制作的“准备Segue”（或其他方法）的代码以及要传递的数据......
对此有何想法？非常感谢！
#import "Ricerca.h"
#import "Custom.h"
#import "DettagliProfilo.h"
@interface Ricerca () <UISearchDisplayDelegate, UISearchBarDelegate>
@property (nonatomic, strong) NSMutableArray *searchResults;
@end
@implementation Ricerca
@synthesize searchResults;
- (void)viewDidLoad {
[super viewDidLoad];
[self loadObjects];
self.searchResults = [NSMutableArray array];
}
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
// The className to query on
self.parseClassName = @"_User";
self.pullToRefreshEnabled = YES;
self.paginationEnabled = YES;
self.objectsPerPage = 10;
}
return self;
}
- (PFQuery *)queryForTable {
PFQuery *query = [PFQuery queryWithClassName:self.parseClassName];
//[query whereKeyExists:@"username"];
//[query whereKeyExists:@"email"];
[query orderByAscending:@"username"];
if ([self.objects count] == 0) {
query.cachePolicy = kPFCachePolicyCacheThenNetwork;
}
return query;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationPortrait || UIInterfaceOrientationIsLandscape(interfaceOrientation));
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {
UITableViewCell *cell = (UITableViewCell *)[self.tableView dequeueReusableCellWithIdentifier:@"Cell"];
if (!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"Cell"];
}
// Configure the cell
UIColor *color = [[UIColor alloc] initWithRed:0.0 green:0.0 blue:0.0 alpha:0.0];
cell.detailTextLabel.backgroundColor = color;
cell.textLabel.backgroundColor = color;
if (tableView == self.tableView) {
cell.textLabel.text = [object objectForKey:@"username"];
cell.detailTextLabel.text = [object objectForKey:@"email"];
cell.imageView.image = [UIImage imageNamed:@"unknown"];
PFFile *imageFile = [object objectForKey:@"foto"];
[imageFile getDataInBackgroundWithBlock:^(NSData *data, NSError *error) {
cell.imageView.image =[UIImage imageWithData:data];
}];
}
else if(tableView == self.searchDisplayController.searchResultsTableView) {
PFObject *searchedUser = [self.searchResults objectAtIndex:indexPath.row];
NSString *content = [searchedUser objectForKey:@"username"];
NSString *email = [searchedUser objectForKey:@"email"];
cell.detailTextLabel.text = email;
cell.textLabel.text = content;
cell.imageView.image = [UIImage imageNamed:@"unknown"];
PFFile *imageFile = [searchedUser objectForKey:@"foto"];
[imageFile getDataInBackgroundWithBlock:^(NSData *data, NSError *error) {
cell.imageView.image =[UIImage imageWithData:data];
}];
NSLog(@"Content: %@", content);
}
return cell;
}
- (void)callbackLoadObjectsFromParse:(NSArray *)result error:(NSError *)error {
if (!error) {
[self.searchResults removeAllObjects];
NSLog(@"Successfully fetched %d entries", result.count);
[self.searchResults addObjectsFromArray:result];
[self.searchDisplayController.searchResultsTableView reloadData];
} else {
NSLog(@"Error: %@ %@", error, [error userInfo]);
}
}
-(void)filterResults:(NSString *)searchTerm {
[self.searchResults removeAllObjects];
PFQuery *query = [PFUser query];
[query orderByAscending:@"username"];
[query whereKeyExists:@"email"];
[query whereKey:@"username" containsString:searchTerm];
query.cachePolicy = kPFCachePolicyNetworkOnly;
[query findObjectsInBackgroundWithTarget:self selector:@selector(callbackLoadObjectsFromParse:error:)];
}
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
[self filterResults:searchString];
return YES;
}
- (void)searchDisplayController:(UISearchDisplayController *)controller didLoadSearchResultsTableView:(UITableView *)tableView
{
tableView.rowHeight = 80.0f; // or some other height
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (tableView == self.tableView) {
return self.objects.count;
} else {
return self.searchResults.count;
}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (tableView == self.searchDisplayController.searchResultsTableView) {
[super tableView:tableView didSelectRowAtIndexPath:indexPath];
} else {
[super tableView:tableView didSelectRowAtIndexPath:indexPath];
}
}
- (void)viewDidUnload {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated {
[super viewDidDisappear:animated];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Check that a new transition has been requested to the DetailViewController and prepares for it
/*if ([segue.identifier isEqualToString:@"Dettaglio"]){
// Capture the object (e.g. exam) the user has selected from the list
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
DettagliProfilo *detailViewController = [segue destinationViewController];
detailViewController.Dettaglio = object;*/
if ([[segue identifier]isEqualToString:@"Dettaglio"])
{
DettagliProfilo *sdvc = (DettagliProfilo *)[segue destinationViewController];
if(self.searchDisplayController.active) {
NSIndexPath *indexPath = [[self tableView] indexPathForSelectedRow];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
object = (PFObject *)[[self searchResults]objectAtIndex:[[[[self searchDisplayController]searchResultsTableView]indexPathForSelectedRow]row]];
sdvc.Dettaglio = object;
} else {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
DettagliProfilo *detailViewController = [segue destinationViewController];
detailViewController.Dettaglio = object;
}
}
}
@end