我是xcode的新手。 我在桌面视图中创建了这个facebook，twitter，Instagram和youtube新闻源
起初我正在尝试这个Facebook加载多个json
#import "ViewController.h"
#import "DetailViewController.h"
#import <SDWebImage/UIImageView+WebCache.h>
#define kQueue dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
#define kJSONUrl [NSURL URLWithString:@"https://www.facebook.com/feeds/page.php?id=1387524391527078&format=json"]
#define kJSONUrl1 [NSURL URLWithString:@"https://www.facebook.com/feeds/page.php?id=196934133652011&format=json"]
#define kBgQueue dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
@interface ViewController ()
@end
@implementation ViewController
@synthesize jsonTitles,table,jsonContent;
-(void)loadJSON:(NSData *)responseData {
NSError *error;
NSArray *json = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];
NSArray *array = [json valueForKey:@"entries"];
for (int i = 0; i < array.count; i++) {
NSArray *entry = [array objectAtIndex:i];
NSString *title = [entry valueForKey:@"title"];
NSString *content = [entry valueForKey:@"content"];
[jsonTitles addObject:title];
[jsonContent addObject:content];
}
[self.table reloadData];
}
- (void)viewDidLoad
{
self.table.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"background.png"]];
jsonTitles = [[NSMutableArray alloc]init];
jsonContent = [[NSMutableArray alloc]init];
dispatch_async(kQueue, ^{
NSData *data = [NSData dataWithContentsOfURL:kJSONUrl];
[self performSelectorOnMainThread:@selector(loadJSON:) withObject:data waitUntilDone:YES];
NSData *data1 = [NSData dataWithContentsOfURL:kJSONUrl1];
[self performSelectorOnMainThread:@selector(loadJSON:) withObject:data1 waitUntilDone:YES];
});
[super viewDidLoad];
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 40;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [jsonTitles count];
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[self performSegueWithIdentifier:@"detailSegue" sender:nil];
// NSSortDescriptor *sorter = [[NSSortDescriptor alloc] initWithKey:@"detailSegue" ascending:YES];
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"detailSegue"]) {
DetailViewController *detail = segue.destinationViewController;
NSIndexPath *path = [self.table indexPathForSelectedRow];
detail.titleText = [jsonTitles objectAtIndex:path.row];
detail.contentText = [jsonContent objectAtIndex:path.row];
}
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *tableCellID = @"tableCellID";
// UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:tableCellID];
UITableViewCell *cell =[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:tableCellID];
NSString *myurl = @"http://graph.facebook.com/idoltap/picture";
NSData *imageData = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:myurl]];
UIImage *myimage = [[UIImage alloc] initWithData:imageData];
cell.imageView.image = myimage;
// cell.imageView.image = [UIImage imageNamed:@"background.png"];
cell.textLabel.text = @"iDOLTap";
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:tableCellID];
}
cell.detailTextLabel.text = [jsonTitles objectAtIndex:indexPath.row];
if ([cell.detailTextLabel.text isEqual: @" "]) {
cell.detailTextLabel.text = [jsonContent objectAtIndex:indexPath.row];
}
return cell;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
我的模式是否正确？ 我不知道如何为每个json /用户加载正确的个人资料图片，并按发布日期对其进行排序。 我只想帮助以正确的方式解决这个问题。