Android的改造RestAdapter得到失敗的斷線

Question

狀態在我的應用程序，我通過改造與此代碼上傳圖像AWS：

private interface UploadFileToAwsInterface { 
     @Multipart 
     @POST("/") 
     SuccessResponse uploadFile(@Part("key") String key, 
            @Part("AWSAccessKeyId") String AWSAccessKeyId, 
            @Part("acl") String acl, 
            @Part("success_action_redirect") String success_action_redirect, 
            @Part("policy") String policy, 
            @Part("signature") String signature, 
            @Part("utf8") String utf8, 
            @Part("Content-Type") String contType, 
            @Part("file") TypedFile file); 
    } 

    public Boolean uploadFileToAws(AWSCredentials awsCredentials, File localFile, String mimeType) { 
     TypedFile file = new TypedFile(mimeType, localFile); 
     endPoint.setUrl(awsCredentials.getAction()); 
     UploadFileToAwsInterface uploadFileInterface = restAdapter.create(UploadFileToAwsInterface.class); 
     SuccessResponse response = uploadFileInterface.uploadFile(
       awsCredentials.getKey(), 
       awsCredentials.getAWSAccessKeyId(), 
       awsCredentials.getAcl(), 
       awsCredentials.getSuccess_action_redirect(), 
       awsCredentials.getPolicy(), 
       awsCredentials.getSignature(), 
       "true", 
       mimeType, 
       file); 

圖片上傳工作正常。但是當我啓動圖片上傳和網絡斷開時，我無法獲得迴應。如何在這種情況下獲得失敗？

Answer 1

你能趕上RetrofitError當你調用uploadFileInterface.uploadFile（）：

try { 
    SuccessResponse response = uploadFileInterface.uploadFile(
     awsCredentials.getKey(), 
     awsCredentials.getAWSAccessKeyId(), 
     awsCredentials.getAcl(), 
     awsCredentials.getSuccess_action_redirect(), 
     awsCredentials.getPolicy(), 
     awsCredentials.getSignature(), 
     "true", 
     mimeType, 
     file); 
} catch (RetrofitError error) { 
    //TODO Show exception here 
}