0

アプリケーションデータをドキュメントフォルダのテキストファイルに保存したい次の方法で保存していますが、単一の文字列を保存していますデータを配列にしたい配列のすべてのコンテンツをテキストファイルに保存するにはどうすればよいですか

  NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
  NSString *documentsDirectory = [paths objectAtIndex:0];
  NSString*yourString=@"This is working fine";
  NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"file.txt"];
  NSString *stringWithoutSpaces = [yourString stringByReplacingOccurrencesOfString:@" " withString:@""];
  [stringWithoutSpaces writeToFile:filePath atomically:TRUE encoding:NSUTF8StringEncoding error:NULL];

私の配列は次のようなものです

    DataController *coffeeObj = [appDelegate.coffeeArray objectAtIndex:indexPath.row];




 cell.resturantLocationLabel.text=coffeeObj.resturantLocation;
     cell.foodQualityRatingLabel.text=coffeeObj.foodQualityRating;
     cell.foodPresentationRatingLabel.text=coffeeObj.foodPresentationRating;
     cell.waiterRatingLabel.text=coffeeObj.waiterRating;
     cell.ambienceRatingLabel.text=coffeeObj.ambienceRating;
     cell.overallRatingLabel.text=coffeeObj.overallRating;
     cell.commentsLabel.text=coffeeObj.comments;
     cell.emailAddressLabel.text=coffeeObj.emailAddress;
     cell.addtoMailingListLabel.text=coffeeObj.addtoMailingList;


     NSString*test=coffeeObj.comments;
4

2 に答える 2

0

完全な配列データを NSMutableString に追加してから、テキスト ファイルに保存します。

于 2012-07-09T06:20:28.980 に答える
0 
// Here you set your text.    
NSString *yourAppendingText = @"yourAppendingText";  

// Here you get access to the file in Documents directory of your application bundle.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDir = [paths objectAtIndex:0];
NSString *documentFile = [documentDir stringByAppendingPathComponent:@"file.txt"];

// Here you read current existing text from that file
NSString *textFromFile = [NSString stringWithContentsOfFile:documentFile encoding:NSUTF8StringEncoding error:nil];

// Here you append new text to the existing one if it is
if(textFromFile){
    NSLog(@"appending");
    NSString *textToFile = [textFromFile stringByAppendingString:[NSString stringWithFormat:@" %@",yourAppendingText]];
    // Here you save the updated text to that file
    [textToFile writeToFile:documentFile atomically:YES encoding:NSUTF8StringEncoding error:nil];

}
else{

    NSLog(@"not appending");
    [yourAppendingText writeToFile:documentFile atomically:YES encoding:NSUTF8StringEncoding error:nil];
}
于 2012-07-09T06:29:06.810 に答える