在tableview（iOS）中显示来自parse.com的数组 [英] Display array from parse.com in tableview (iOS)
问题描述
我想在我的表视图中显示一个数据在parse.com上的数据库
我可以显示数组中的第一项，但不显示其余项。
I am tying to display in my table view an array that is on a database on parse.com I can display the first item in the array, but not the rest.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil){
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
_ListArray = [object objectForKey:@"content"];
NSLog(@"OBJECT = %@",_ListArray);
NSString *cellValue = [NSString stringWithFormat:@"%@", [_ListArray objectAtIndex:indexPath.row]];
cell.textLabel.text = cellValue;
if(refresh <counter)
{
NSString *br = @"<br>";
List = [NSString stringWithFormat:@"%@%@%@", List, br, cell.textLabel.text];
NSLog(@"%@",List);
refresh ++;
}
cell.accessoryType =UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
如果我尝试使用：
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [_ListArray count];
}
表格中没有任何内容。
编辑更新：
删除了self.ListArray并使用_ListArray。
did remove the self.ListArray and going with _ListArray.
在h文件中：
NSMutableArray *ListArray;
...
@property (retain, atomic) NSMutableArray *ListArray;
然后在m档案中：
@synthesize ListArray = _ListArray;
关于：
self.ListArray = [object objectForKey:@"content"];
对象是PFObject。
the object is the PFObject.
我有queryForTable，我从解析中获取数据。
i have queryForTable where i get the data from parse.
- (PFQuery *)queryForTable {
PFQuery *query = [PFQuery queryWithClassName:@"List"];
[query whereKey:@"user" equalTo:[PFUser currentUser]]; // user
[query whereKey:@"objectId" equalTo:[theListID objectId]]; // the specific list
counter =[query countObjects];
NSLog(@"%d",counter);
// If Pull To Refresh is enabled, query against the network by default.
if (self.pullToRefreshEnabled) {
query.cachePolicy = kPFCachePolicyNetworkOnly;
}
// 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) {
query.cachePolicy = kPFCachePolicyCacheThenNetwork;
}
[query orderByDescending:@"createdAt"];
return query;
}
和objectForKey：@content];
content是我的类中解析
的列的名称所以我需要说出我想要的类中的哪个对象，那就是名为content的数组列
And to the objectForKey:@"content"]; content is the name of the column in my class on parse so i need to say what object from the class i want to get, and that is the array column named "content"
logg，（NSLog在阵列上有效。
The logg, (when the NSLog is active on the array.
Inköpslista[7856:12e03] Warning: A long-running Parse operation is being executed on the main thread.
Break on warnParseOperationOnMainThread() to debug.
2013-10-21 14:23:31.008 Inköpslista[7856:12e03] 1
2013-10-21 14:23:31.017 Inköpslista[7856:12e03] OBJECT = (
"Br\U00f6d",
Anka,
Boll,
Sko
)
2013-10-21 14:23:31.017 Inköpslista[7856:12e03] <html><body><br>Bröd
2013-10-21 14:23:31.545 Inköpslista[7856:12e03] OBJECT = (
"Br\U00f6d",
Anka,
Boll,
Sko
)
推荐答案
有了它的工作，确实把数组放到我得到的数据从解析，然后只调用
Got it to work, did put the array were i get the data from parse, and then only call
cell.textLabel.text = [_ListArray objectAtIndex:indexPath.row];
然后我可以使用：
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [_ListArray count];
}
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