如何用iPhone中的某些文字抽出图片

Question

我想知道，有什么方法可以在twitter中用一些文字发布图片，有人建议使用“http://tinyurl.com/”。我不知道从哪里开始，在我的以前的应用程序中，我成功地抽动了，但只包含文本。 正确的方向继续将是一个很大的帮助。

Answer 1

有几种方法。我建议你使用ShareKit。它为你做了大部分工作。

Answer 2

要将图像发布到Twitter，我们必须先将图像发布到twit中，然后我们必须将该网址发送到twitter，这是将图像发送到twitter的过程，这是将图像发送到twitter的示例代码。 ........

NSString *postUrl = @"https://api.twitter.com/1/statuses/update.json"; 

ASIFormDataRequest *request = [[ASIFormDataRequest alloc] 
           initWithURL:[NSURL URLWithString:postUrl]]; 

NSMutableDictionary *postInfo = [NSMutableDictionary 
           dictionaryWithObject:statusText.text 
           forKey:@"status"]; 

NSLog(@"%@",postInfo); 
NSString *str1= statusText.text; 

NSLog(@"Status posted. HTTP result code: %d", request.responseStatusCode); 



[request release]; 

[statusText resignFirstResponder]; 

ASIFormDataRequest *req = [[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:@"http://api.twitpic.com/2/upload.json"]]; 


[req addRequestHeader:@"X-Auth-Service-Provider" value:@"https://api.twitter.com/1/account/verify_credentials.json"]; 
[req addRequestHeader:@"X-Verify-Credentials-Authorization" 
       value:[oAuth oAuthHeaderForMethod:@"GET" 
              andUrl:@"https://api.twitter.com/1/account/verify_credentials.json" 
             andParams:nil]];  
[req setData:UIImageJPEGRepresentation(imageView.image, 0.8) forKey:@"media"]; 

// Define this somewhere or replace with your own key inline right here. 

[req setPostValue:@"74734e805f2ad85afae441ca12c16087" forKey:@"key"]; 
[req startSynchronous]; 

NSLog(@"Got HTTP status code from TwitPic: %d", [req responseStatusCode]); 

NSLog(@"Response string: %@", [req responseString]); 


NSDictionary *twitpicResponse = [[req responseString] JSONValue]; 
NSLog(@"%@",[[req responseString] JSONValue]); 
textView.text = [NSString stringWithFormat:@"Posted image URL: %@", [twitpicResponse valueForKey:@"url"]]; 
NSString *str=[NSString stringWithFormat:@" %@",[twitpicResponse valueForKey:@"url"]]; 
NSLog(@"%@",str); 
if([str isEqualToString:@" (null)"]) 
{ 
    UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Message" message:@"Could not authenticate you(header rejected by twitter)" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil]; 
    [alertView show]; 
} 
else 
{ 

    NSString *postUrl = @"https://api.twitter.com/1/statuses/update.json"; 

    ASIFormDataRequest *request = [[ASIFormDataRequest alloc] 
            initWithURL:[NSURL URLWithString:postUrl]]; 
    NSString *txtmessage=[str1 stringByAppendingString:str]; 

    /*NSMutableDictionary *postInfo = [NSMutableDictionary 
            dictionaryWithObject:[twitpicResponse valueForKey:@"url"] 
            forKey:@"status"];*/ 
    NSMutableDictionary *postInfo = [NSMutableDictionary 
            dictionaryWithObject:txtmessage 
            forKey:@"status"]; 
    for (NSString *key in [postInfo allKeys]) { 
     [request setPostValue:[postInfo objectForKey:key] forKey:key]; 
    } 

    [request addRequestHeader:@"Authorization" 
         value:[oAuth oAuthHeaderForMethod:@"POST" 
                andUrl:postUrl 
               andParams:postInfo]]; 

    [request startSynchronous]; 

    if(request.responseStatusCode!=200) 
    { 
     UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Message" message:@"Already posted" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil]; 
     [alertView show]; 
    } 
    else { 
     UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Message" message:@"sucess" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil]; 
     [alertView show]; 
    } 


    NSLog(@"Status posted. HTTP result code: %d", request.responseStatusCode); 

    statusText.text = @""; 

    [request release]; 

    [statusText resignFirstResponder]; 
}