Iphone 使用FBConnect在Facebook上发布图像

我想使用fbconnect在facebook上发布图像

我已经写了以下几行代码，但是我应该对我的代码做些什么来在facebook上发布图片呢

- (void) postOnPage
{
    [self saveAccessTokenKeyInfo];

    NSString *imgStr=@"hello";

    NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                   @"Hat Application", @"name",
                                   @"http://www.idhats.com/", @"link",
                                   @"HatApp", @"caption",
                                   imgStr, @"picture",
                                   nil];

    [facebook dialog:@"feed" andParams:params andDelegate:self];

}

谢谢…

-（作废）上传照片{
- (void)uploadPhoto{
NSMutableDictionary *args = [[NSMutableDictionary alloc] init];
UIImage *img = [UIImage imageNamed:@"picture1.jpg"];
NSData *data = UIImageJPEGRepresentation(img, 10);
//NSData *data = UIImagePNGRepresentation(img);
NSString *imgstr = [data base64Encoding];
//NSString *imgstr = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
//[args setObject:[UIImage imageNamed:@"antartica1.png"] forKey:@"image"];   
[args setObject:imgstr forKey:@"image"];    // 'images' is an array of 'UIImage' objects
uploadimgrequest = [FBRequest requestWithDelegate:self];
[uploadimgrequest call:@"photos.upload" params:args dataParam:data];
//[uploadimgrequest call:@"photos.upload" params:args];
}

-(NSString *)Base64Encode:(NSData *)data{
//Point to start of the data and set buffer sizes
int inLength = [data length];
int outLength = ((((inLength * 4)/3)/4)*4) + (((inLength * 4)/3)%4 ? 4 : 0);
const char *inputBuffer = [data bytes];
char *outputBuffer = malloc(outLength);
outputBuffer[outLength] = 0;

//64 digit code
static char Encode[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

//start the count
int cycle = 0;
int inpos = 0;
int outpos = 0;
char temp;

//Pad the last to bytes, the outbuffer must always be a multiple of 4
outputBuffer[outLength-1] = '=';
outputBuffer[outLength-2] = '=';

/* http://en.wikipedia.org/wiki/Base64
 Text content   M           a           n
 ASCII          77          97          110
 8 Bit pattern  01001101    01100001    01101110

 6 Bit pattern  010011  010110  000101  101110
 Index          19      22      5       46
 Base64-encoded T       W       F       u
 */


while (inpos < inLength){
    switch (cycle) {
        case 0:
            outputBuffer[outpos++] = Encode[(inputBuffer[inpos]&0xFC)>>2];
            cycle = 1;
            break;
        case 1:
            temp = (inputBuffer[inpos++]&0x03)<<4;
            outputBuffer[outpos] = Encode[temp];
            cycle = 2;
            break;
        case 2:
            outputBuffer[outpos++] = Encode[temp|(inputBuffer[inpos]&0xF0)>> 4];
            temp = (inputBuffer[inpos++]&0x0F)<<2;
            outputBuffer[outpos] = Encode[temp];
            cycle = 3;                  
            break;
        case 3:
            outputBuffer[outpos++] = Encode[temp|(inputBuffer[inpos]&0xC0)>>6];
            cycle = 4;
            break;
        case 4:
            outputBuffer[outpos++] = Encode[inputBuffer[inpos++]&0x3f];
            cycle = 0;
            break;                          
        default:
            cycle = 0;
            break;
    }
}
NSString *pictemp = [NSString stringWithUTF8String:outputBuffer];
free(outputBuffer); 
return pictemp;
}

NSMutableDictionary*args=[[NSMutableDictionary alloc]init]；
UIImage*img=[UIImage ImageName:@“picture1.jpg”]；
NSData*data=UIImageJPEG表示法（img，10）；
//NSData*data=UIImagePngResentation（img）；
NSString*imgstr=[data BASE64编码]；
//NSString*imgstr=[[NSString alloc]initWithData:数据编码：NSASCIIStringEncoding]；
//[args setObject:[UIImage ImageName:@“antartica1.png”]forKey:@“image”]；
[args setObject:imgstr forKey:@“image”]；/“images”是“UIImage”对象的数组
uploadimgrequest=[FBRequestWithDelegate:self]；
[uploadimgrequest调用：@“photos.upload”参数：args dataParam:data]；
//[uploadimgrequest调用：@“photos.upload”参数：args]；
}
-（NSString*）base64编码：（NSData*）数据{
//指向数据的起始点并设置缓冲区大小
int inLength=[数据长度]；
int-outLength=（（内长*4）/3）/4）*4+（（内长*4）/3）%4？4:0；
常量字符*inputBuffer=[数据字节]；
char*outputBuffer=malloc（outLength）；
outputBuffer[outLength]=0；
//64位代码
静态字符编码[]=“abcdefghijklmnopqrstuvxyzabcdefghijklmnopqrstuvxyzo123456789+/”；
//开始计数
整数周期=0；
int-inpos=0；
int outpos=0；
焦炭温度；
//如果将最后一个填充到字节，则溢出必须始终是4的倍数
outputBuffer[outLength-1]='='；
outputBuffer[outLength-2]='='；
/* http://en.wikipedia.org/wiki/Base64
文本内容
ASCII 77 97 110
8位模式01001101 01100001 01110
6位模式010011010110 000101 101110
指数19 22 5 46
Base64编码T W F u
*/
while（inpos>2]；
循环=1；
打破
案例1：
temp=（inputBuffer[inpos++]&0x03）4]；
temp=（inputBuffer[inpos++]&0x0F）6]；
周期=4；
打破
案例4：
outputBuffer[outpos++]=编码[inputBuffer[inpos++]&0x3f]；
周期=0；
打破
违约：
周期=0；
打破
}
}
NSString*pictemp=[NSString stringWithUTF8String:outputBuffer]；
空闲（输出缓冲区）；
返回pictemp；
}

它在NSString*imgstr=[data BASE64编码]上给出错误；找不到关于Base64编码方法的行，并生成警告uploadimgrequest=[FBRequestRequestWithDelegate:self]；requestWithDelegate未找到现在我已更新了答案，包括Base64编码方法