Question

我有以下问题：

我正在尝试将文件附加到邮件中，并通过我的iPad应用程序中的邮件表单发送。我认为一切顺利，日志输出说邮件已发送，但我没有收到。

我尝试了一切，但仍然无法解决问题。

这是我的代码，请查看它并告诉我是否有任何奇怪或错误：

-(void)createCSVFile
{
    NSMutableString *csv = [NSMutableString stringWithString:@"UniqueID,playerNumber,DateAndHour,Prize"];

    NSUInteger counter = [playerNumber count];
    NSLog (@"%d", counter);
    // provided all arrays are of the same length
    for (NSUInteger i=0; i < counter; i++ )
    {
        [csv appendFormat:@"\n%@,%d,%@,%@",
         [uniqueID objectAtIndex:i],
         [[playerNumber objectAtIndex:i] intValue],
         [dateAndHour objectAtIndex:i],
         [prizeWon objectAtIndex:i]
         ];
  //      NSLog (@"%@, %d, %@, %@", [uniqueID objectAtIndex:i], [[playerNumber objectAtIndex:i]intValue], [dateAndHour objectAtIndex:i], [prizeWon objectAtIndex:i]);
        // instead of integerValue may be used intValue or other, it depends how array was created
    }

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *docDirectory = [paths objectAtIndex:0];
    filePath = [NSString stringWithFormat:@"%@/VictoryStats.csv", docDirectory];

    NSString *outputFileName = [docDirectory stringByAppendingPathComponent:@"VictoryStats.csv"];

    NSError *error;
    BOOL res = [csv writeToFile:outputFileName atomically:YES encoding:NSUTF8StringEncoding error:&error];

    if (res)
    {
        NSLog (@"created");
    }

    if (!res) {
        NSLog(@"Error %@ while writing to file %@", [error localizedDescription], outputFileName );
    }
}


-(void)sendMail
{
    MFMailComposeViewController *mailer = [[MFMailComposeViewController alloc] init];
    mailer.mailComposeDelegate = self;
    [mailer setSubject:@"CSV File"];
    [mailer addAttachmentData:[NSData dataWithContentsOfFile:filePath]
                     mimeType:@"text/csv"
                     fileName:@"VictoryStats.csv"];
    [self presentViewController:mailer animated:YES completion:NULL];

}

我认为我的代码很好，但似乎不是。

请看一下。

提前致谢。

Answer 1

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *docDir = [paths objectAtIndex:0];

    NSString *filename = [docDir stringByAppendingPathComponent:[NSString stringWithFormat:@"Product.csv"]];
    NSError *error = NULL;
    BOOL written = [csvstr writeToFile:filename atomically:YES encoding:NSUTF8StringEncoding error:&error];
    if (!written)
        NSLog(@"write failed, error=%@", error);

    //CSV File
    NSData *myData = [NSData dataWithContentsOfFile:[docDir stringByAppendingPathComponent:[NSString stringWithFormat:@"Product.csv"]]];
    [mail addAttachmentData:myData mimeType:@"text/csv" fileName:[NSString stringWithFormat:@"Product.csv"]];

没有收到iPad应用程序发送的电子邮件？

1 个答案: