上传图片

- (void) addPicEvent
{
	UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
    if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
		sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
	}   
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    picker.sourceType = sourceType;
    [self presentModalViewController:picker animated:YES];
    [picker release]; 
}

- (void)saveImage:(UIImage *)image {
	NSLog(@"保存");
}

#pragma mark -
#pragma mark Camera View Delegate Methods

- (void)imagePickerController:(UIImagePickerController *)picker 
didFinishPickingMediaWithInfo:(NSDictionary *)info {
    [picker dismissModalViewControllerAnimated:YES];
    UIImage *image = [[info objectForKey:UIImagePickerControllerEditedImage] retain];
    [self performSelector:@selector(saveImage:) withObject:image afterDelay:0.5];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    [picker dismissModalViewControllerAnimated:YES];
}