iPhone - 将Sharekit的图像发送到Facebook [英] iPhone - sending an image with Sharekit to Facebook

问题描述

我正在使用ShareKit向Facebook发送评论和图像。一切都工作正常，除非如果没有用户图像存在（在coredata / sqlite数据库），我想发送一个默认的图像。这是我的代码， example.png 是默认图像， initWithData：entity.userImage 是用户添加的图像与他们的iPhone。也许我的if else语句有问题。

I'm using ShareKit to send a comment and an image to facebook. Everything's working fine except that if no user image exists (in the coredata/sqlite db) I would like to send a default image instead. Here's my code, with example.png being the default image and initWithData:entity.userImage being the image the user added with their iPhone. Maybe there's something wrong with my if else statement.

-(IBAction) fbButton {

    SHKItem *item;
    NSURL *url = [NSURL URLWithString:@"http://itunes.apple.com/ae/artist/XXX"];
    item = [SHKItem URL:url title:[NSString stringWithFormat:@"Take a look at %@", entity.name]];
    [SHKFacebook shareItem:item];


    if (entity.image = nil) {

            UIImage *image = [UIImage imageNamed:@"example.png"];
            SHKItem *item2 = [SHKItem image:image title:nil];
            [SHKFacebook shareItem:item2];

    } else {


            UIImage *image = [[[UIImage alloc] initWithData:entity.userImage] autorelease];


            SHKItem *item2 = [SHKItem image:image title:nil];
            [SHKFacebook shareItem:item2];

    }       


    [SHK flushOfflineQueue];        

}

问题是如果数据库中没有图像Sharekit给出UIAlert说上传文件必须存在。如果数据库中的记录没有数据库，那么我一直在提供一个默认的图像，我一直在努力解决这个问题。

The problem is that if there is no image in the database Sharekit gives a UIAlert saying that a file must be present in the upload. I was trying to get around this by always providing a default image in case the record in the database doesn't have one.

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推荐答案

USE if（entity.image == nil）
相反，这个 if（entity.image = nil）{

if (imageView.image == nil) {
                imageView.image = [UIImage imageNamed:@"fbicon.png"];
                SHKItem *item2 = [SHKItem image:imageView.image title:@"Hi"];
                [SHKFacebook shareItem:item2];
            }
            else {
            SHKItem *item1 = [SHKItem image:imageView.image title:@"Hi"];
            [SHKFacebook shareItem:item1];
            }

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