让我的应用程序使用 ODRefreshcontrol 进行刷新动作：https ://github.com/Sephiroth87/ODRefreshControl How to make this refresh my Table view?，下面是 .m 文件中的代码：
#import "ThirdViewController.h"
#import "ODRefreshControl.h"
@interface ThirdViewController ()
@end
@implementation ThirdViewController
@synthesize tableView = _tableView;
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (BOOL)shouldAutorotate
{
return NO;
}
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskPortrait;
}
-(void)TableView:(UITableView *)TableView didFailLoadWithError:(NSError *)error {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Can't connect. Please check your internet Connection" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
ODRefreshControl *refreshControl = [[ODRefreshControl alloc] initInScrollView:self.tableView];
[refreshControl addTarget:self action:@selector(dropViewDidBeginRefreshing:) forControlEvents:UIControlEventValueChanged];
// Do any additional setup after loading the view.
[self fetchTweets];
self.tableView.dataSource = self;
self.tableView.delegate = self;
UIImageView *tempImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"background.png"]];
[tempImageView setFrame:self.tableView.frame];
self.tableView.backgroundView = tempImageView;
}
- (void)dropViewDidBeginRefreshing:(ODRefreshControl *)refreshControl
{
double delayInSeconds = 2.0;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
[refreshControl endRefreshing];
});
}
- (void)fetchTweets
{
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData* data = [NSData dataWithContentsOfURL:
[NSURL URLWithString: @"http://search.twitter.com/search.json?q=from:user"]];
NSError* error;
tweets = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&error];
NSLog(@"Tweets %@", tweets);
dispatch_async(dispatch_get_main_queue(), ^{
[self.tableView reloadData];
});
});
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 80;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return tweets.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"TweetCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
NSArray *tweetsArray = [tweets valueForKey:@"results"];
NSDictionary *tweet = [tweetsArray objectAtIndex:indexPath.row];
NSString *text = [tweet objectForKey:@"text"];
//NSString *name = [[tweet objectForKey:@"user"] objectForKey:@"name"];
cell.textLabel.text = text;
//cell.detailTextLabel.text = [NSString stringWithFormat:@"by %@", name];
return cell;
}
-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(@"Row %d selected", indexPath.row);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
我需要添加什么来刷新我的表格视图中的 twitter 提要？