Question

我正在iOS项目中关注Google Gmail API文档，我需要使用userId，messageId和id Try out from Google从邮件中下载附件。 userId是用户的电子邮件地址， id是mailId（Try it.Enter only your EmailId） messageId是我们使用上面带有附件的id之一得到的。

到目前为止，这是我所拥有的代码：

#include<stdio.h>
#define AB "HELLO"
#define A "WORLD"
#define MAC2 A#B
void main(void)
{
    printf(MAC2"\n");
}

- (void)fetchLabels {
    GTLQueryGmail *query = [GTLQueryGmail queryForUsersThreadsList];
    [self.service executeQuery:query
                      delegate:self
            didFinishSelector:@selector(displayResultWithTicket:finishedWithObject:error:)];
}

- (void)displayResultWithTicket:(GTLServiceTicket *)ticket
             finishedWithObject:(GTLGmailListLabelsResponse *)labelsResponse
                          error:(NSError *)error {

    NSDictionary *allIDsDictionaryValue=[labelsResponse.JSON valueForKey:@"threads"];
    NSMutableArray *allIDs=[NSMutableArray new];
    for (int i=0; i<[allIDsDictionaryValue count]; i++) {
        [allIDs addObject:[allIDsDictionaryValue valueForKey:@"id"]];
    }
   NSString *mailID=[[allIDs objectAtIndex:0]objectAtIndex:0];
    NSLog(@"%@",mailID);//Ex: 14e8af86776e595b 
    //As of now I am using the first id only because it has an attachment.

   // Getting messageId from an id of a mail.
    GTLQueryGmail *query1 = [GTLQueryGmail queryForUsersMessagesGet];
    query1.identifier=mailID;
    [self.service executeQuery:query1
                      delegate:self
             didFinishSelector:@selector(displayResultWithTicketOfAttachment:finishedWithObject:error:)];
}

- (void)displayResultWithTicketOfAttachment:(GTLServiceTicket *)ticket
             finishedWithObject:(GTLGmailListLabelsResponse *)labelsResponse
                          error:(NSError *)error {

    NSDictionary *response1=labelsResponse.JSON;
    NSDictionary *response2=[[[response1 valueForKey:@"payload"] valueForKey:@"parts"]objectAtIndex:1];
    if ([[response2 valueForKey:@"mimeType"] isEqualToString:@"application/vnd.ms-excel"]) {
         attachmentId=[[response2 valueForKey:@"body"]valueForKey:@"attachmentId"];
         NSLog(@"%@",attachmentId); //Ex: ANGjdJ_Uw2o7G2Q16jfC4JSTwD2UIO6LuqDIJZvXFCft0q5ALYuiYfM2gPWG0dcty2n6ZkjnVWekIb_3e2_0TqSpctWNAABsfaSF2x2ktf9uHu63e3eIot_GFA9xgppmaRDyaJEL1V-gIvjfPRxgINK8xM0OuuwnVz2xzcCFckkwpK2XwzZG_QPGPvC2Be2bGKNJI8Ds3hGtqfHYeSWZjOjbsjBuxbUFjf1Mlp0TLol9LLAy2cjGZ_CUBQXzZhhWw9AtNHTU4jwhk4WizKRXbfuDvmRtAy1lPCnTKS6pLg

Answer 1

你把Ids混淆了一下。

ggplot() +
geom_path(data = usa, aes(x = long, y = lat, group = group)) + 
theme_general + geom_point(data = CombinedStudentsUSA1, 
aes(x = Long, y = Lat, size = Number), color = "blue", shape=19, alpha=.5)+
scale_size_continuous(range = c(2, 4))

您在回复中获得的数据为Base64-encoded，并且通过替换所有＆＃34; +＆＃34;来确保网址安全。使用＆＃34; - ＆＃34;，以及所有＆＃34; /＆＃34;用＆＃34; _＆＃34;。

只需将其转换回常规Base64数据并解码即可！在您的开发者工具中尝试此操作（按F12）：

GTLQueryGmail *query2 = [GTLQueryGmail queryForUsersMessagesAttachmentsGet];
        query2.id=attachmentId;
        query2.messageId=mailID;

在代码中执行相同的步骤，您将获得原始格式的数据。

iOS - 使用messageId和attachmentId从Gmail下载附件

1 个答案: