Question

I use asiformdatarequest framework to upload images,The code like this:

 NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
    NSString *path1=[paths objectAtIndex:0];
    NSString *filename=[path1 stringByAppendingPathComponent:@"logo.png"];  
    NSLog(@"image path = %@",filename);
    [request setFile:[NSURL URLWithString:filename] forKey:@"avatar"];
    [request startSynchronous];

我的记录:

image path = /Users/tanlusheng/Library/Application Support/iPhone Simulator/5.1/Applications/5473E6FF-0D3A-48CD-8728-0219CF25BC80/Documents/logo.png
Error Domain=ASIHTTPRequestErrorDomain Code=6 "No file exists at (null)" UserInfo=0x6b4c610 {NSLocalizedDescription=No file exists at (null)}

我在我的项目中增加了一个形象。但它为什么不能找到档案? 我坐在模拟器上。

Answer 1

当你再次试图传播图像时,你再次试图从应用<条码>文件目录中传播图像,而不是主要障碍。除非你将图像明确列入目录(你最有可能通过代码制作),否则将不存在。

相反:

NSString *filename = [[NSBundle mainBundle] pathForResource:@"logo" ofType:@"png"];  
[request setFile:[NSURL URLWithString:filename] forKey:@"avatar"];
[request setDelegate:self]; //Make sure this class receives request alerts
[request setDidFinishSelector:@selector(someMethod:)]; //Which method to call when finished
[request startAsynchronous];

Note I ve also changed the request to start asynchronously. You really don t want to upload synchronously or your app will stop executing until the request is finished. I ve also added the self delegation and a selector for when the request finishes.

之后,你可以在此处理已完成的问题:

- (void)someMethod:(ASIHTTPRequest *)request
{
    NSString *response = [request responseString];
    NSLog(@"%@", response);
}

如果你仍然犯了错误,则确保图像Target Members。为此,在X条码中选择你的形象,并确保在右边的Target Membersip下打上小盒子。这将确保图像在构造时成为你应用的一部分。

友情链接