ios - 使用AWSContinuationBlock发送兼容的指针 block 类型

Question

尝试使用AWSS3TransferManager运行块时出现以下错误:

incompatible block pointer types sending 'id ((^)(void)) to parameter of type 'AWSContinuationBlock' (aka id (^)(AWSTask *__strong))

我认为这是由于不同的块类型所致，在我期望AWSTask的同时，我目前不返回任何值，但是我不确定如何返回AWSTask。

_uploadRequest = [AWSS3TransferManagerUploadRequest new];

AWSS3TransferManager *transferManager = [AWSS3TransferManager defaultS3TransferManager];
[[transferManager upload:_uploadRequest] continueWithExecutor:[BFExecutor mainThreadExecutor] withBlock:^id(BFTask *task){

    if (task.error){
        NSLog(@"%@",task.error);
    }
}];

Answer 1

该错误是由于您提供的块需要BFTask参数而引起的。

将BFTask参数更改为AWSTask并返回它。

_uploadRequest = [AWSS3TransferManagerUploadRequest new];

AWSS3TransferManager *transferManager = [AWSS3TransferManager defaultS3TransferManager];
[[transferManager upload:_uploadRequest] continueWithExecutor:[BFExecutor mainThreadExecutor] withBlock:^id(AWSTask *task){

    if (task.error){
        NSLog(@"%@",task.error);
    }

    return task;
}];