我想用这种查询方法显示来自Parse数据库的数据:
//Prepare the query to get all the images in descending order
PFQuery *query = [PFQuery queryWithClassName:@"BasketballMatch"];
[query orderByDescending:@"createdAt"];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
//Everything was correct, put the new objects and load the wall
self.matches = nil;
self.matches = [[NSArray alloc] initWithArray:objects];
NSLog(@"Parse push %@", self.matches );
dispatch_async(dispatch_get_main_queue(), ^ {
[self.tableView reloadData];
});
} else {
//Show the error
NSString *errorString = [[error userInfo] objectForKey:@"error"];
[self showErrorView:errorString];
}
}];
然后用这个
显示它 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"match" forIndexPath:indexPath];
cell.textLabel.text = [NSString stringWithFormat:@"coba dulu %@", [[self.matches objectAtIndex:indexPath.row] objectForKey:@"TeamName"]];
return cell;
}
但是表视图单元格将显示第一个
cell1 (null)
cell2 (null)
cell3 (null)
cell4 (null)
然后几秒钟它会显示我想要的显示。
cell1 Soccer
cell1 Tennis
cell3 Basketball
cell4 Badminton
我希望tableview能够立即显示我想要的数据。对此有一个优雅的解决方案......