我正在尝试显示一个表格视图，在其中我从 Parse.com 加载数据。我不使用最新版本的框架（因为我项目中的其他模块我没有时间更改），这就是我使用“keytoDisplay”并且我没有 PFQueryTableViewCell 类的原因。
我的问题涉及细胞的加载：我的不加载！我将 NSLogs 放在代码的每个部分中，结果是方法 (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object 未被调用。
我不明白为什么......我验证我将我的表格视图作为代表和数据源与我的视图控制器链接（我使用故事板）。
我是初学者，在这里发布之前我到处寻找答案但没有成功......我还下载了 Parse 示例代码，但我没有成功解决我的问题。
非常感谢您提前！
这是我的代码：
#import "LiveList.h"
@implementation LiveList
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
NSLog(@"TestViewDidLoad");
// Custom the table
// The className to query on
self.className = @"LiveList";
// The key of the PFObject to display in the label of the default cell style
self.keyToDisplay = @"Sport";
// Whether the built-in pull-to-refresh is enabled
self.pullToRefreshEnabled = YES;
// Whether the built-in pagination is enabled
self.paginationEnabled = YES;
// The number of objects to show per page
self.objectsPerPage = 50;
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void)viewDidUnload
{
[self setTableView:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
NSLog(@"testviewwillappear");
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (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.
}
#pragma mark - Parse
- (void)objectsDidLoad:(NSError *)error {
[super objectsDidLoad:error];
// This method is called every time objects are loaded from Parse via the PFQuery
}
- (void)objectsWillLoad {
[super objectsWillLoad];
NSLog(@"test-objectsWillLoad");
// This method is called before a PFQuery is fired to get more objects
}
// Override to customize what kind of query to perform on the class. The default is to query for
// all objects ordered by createdAt descending.
- (PFQuery *)queryForTable {
PFQuery *query = [PFQuery queryWithClassName:@"LiveList"];
// If no objects are loaded in memory, we look to the cache first to fill the table
// and then subsequently do a query against the network.
if ([self.objects count] == 0) {
// ** There are other caching options in Parse iOS guide
query.cachePolicy = kPFCachePolicyNetworkElseCache;
}
[query orderByDescending:@"Sport"];
return query;
}
// Override to customize the look of a cell representing an object. The default is to display
// a UITableViewCellStyleDefault style cell with the label being the first key in the object.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object: (PFObject *)object {
NSLog(@"TableViewCell");
static NSString *CellIdentifier = @"Cell";
NSLog(@"CellIdentifier");
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:@"Cell"];
NSLog(@"CellIdentifier2");
if (cell == nil) {
NSLog(@"Loop");
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure the cell
NSLog(@"ConfigureCell");
cell.textLabel.text = [object objectForKey:@"Sport"];
cell.detailTextLabel.text = [NSString stringWithFormat:@"Lieu: %@", [object objectForKey:@"Lieu"]];
return cell;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[super tableView:tableView didSelectRowAtIndexPath:indexPath];
}
@end