沒有收到iPad應用發送的電子郵件？

Question

我有以下問題：

我試圖將文件附加到郵件中，並通過iPad應用程序中的郵件表格發送。 我認為一切正常，日志輸出顯示郵件已發送，但我沒有收到。

我嘗試了一切，但仍然無法解決問題。

這是我的代碼，請仔細閱讀並告訴我是否有任何奇怪或錯誤的地方：

-(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];

}

我認為我的代碼不錯，但似乎不是。

請看一下。

提前致謝。

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"]];