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Comment puis-je sauvegarder, récupérer, supprimer et mettre à jour mes données dans le fichier Plist dans ios?

Je crée une application iPhone dans laquelle je reçois le nom, le logo et le nom du joueur de tous les pays. Je veux enregistrer ces données dans .plist au lieu de sqlite serveur. Je ne sais pas comment créer un fichier plist dans DocumentDirectory et sauvegarder les données. 

S'il vous plaît, quelqu'un me suggère comment enregistrer des données dans un fichier plist.

iosplist
15
user3631436

Je vais avec capture d'écran et étape par étape. Veuillez suivre ceci et vous obtiendrez votre réponse.

Vous devez d'abord créer une liste de propriétés via votre Xcode.

Étape 1

enter image description here

Étape 2

enter image description here

Étape 3

Sauvegarder les données sur votre action du bouton de sauvegarde:

   // Take 3 array for save the data .....

    -(IBAction)save_Action:(id)sender
    {
        NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentsPath = [paths objectAtIndex:0];
        NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];

        [self.nameArr addObject:self.nameField.text];
        [self.countryArr addObject:self.countryField.text];
        [self.imageArr addObject:@"image.png"];

        NSDictionary *plistDict = [[NSDictionary alloc] initWithObjects: [NSArray arrayWithObjects: self.nameArr, self.countryArr, self.imageArr, nil] forKeys:[NSArray arrayWithObjects: @"Name", @"Country",@"Image", nil]];

        NSError *error = nil;
        NSData *plistData = [NSPropertyListSerialization dataFromPropertyList:plistDict format:NSPropertyListXMLFormat_v1_0 errorDescription:&error];

        if(plistData)
        {
            [plistData writeToFile:plistPath atomically:YES];
            alertLbl.text = @"Data saved sucessfully";
        }
        else
        {
            alertLbl.text = @"Data not saved";
        }
    }
 // Data is saved in your plist and plist is saved in DocumentDirectory

Étape 4

Récupérer les données du fichier plist:

    NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsPath = [paths objectAtIndex:0];
    NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];

    if (![[NSFileManager defaultManager] fileExistsAtPath:plistPath])
    {
        plistPath = [[NSBundle mainBundle] pathForResource:@"manuallyData" ofType:@"plist"];
    }

    NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
    self.nameArr = [dict objectForKey:@"Name"];
    self.countryArr = [dict objectForKey:@"Country"];

Étape: 5

Supprimer les données du fichier plist:

    NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsPath = [paths objectAtIndex:0];
    NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];
    NSMutableDictionary *dictionary = [NSMutableDictionary dictionaryWithContentsOfFile:(NSString *)plistPath];

    self.nameArr = [dictionary objectForKey:@"Name"];
    self.countryArr = [dictionary objectForKey:@"Country"];

    [self.nameArr removeObjectAtIndex:indexPath.row];
    [self.countryArr removeObjectAtIndex:indexPath.row];

    [dictionary writeToFile:plistPath atomically:YES];

Étape: 6

Mettez à jour vos données sur Update click Action:

    NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsPath = [paths objectAtIndex:0];
    NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];

    if (![[NSFileManager defaultManager] fileExistsAtPath:plistPath])
    {
        plistPath = [[NSBundle mainBundle] pathForResource:@"manuallyData" ofType:@"plist"];
    }

    self.plistDic = [[NSDictionary alloc] initWithContentsOfFile:plistPath];

    [[self.plistDic objectForKey:@"Name"] removeObjectAtIndex:self.indexPath];
    [[self.plistDic objectForKey:@"Country"] removeObjectAtIndex:self.indexPath];
    [[self.plistDic objectForKey:@"Image"] removeObjectAtIndex:self.indexPath];

    [[self.plistDic objectForKey:@"Name"] insertObject:nameField.text atIndex:self.indexPath];
    [[self.plistDic objectForKey:@"Country"] insertObject:countryField.text atIndex:self.indexPath];
    [[self.plistDic objectForKey:@"Image"] insertObject:@"dhoni.jpg" atIndex:self.indexPath];

    [self.plistDic writeToFile:plistPath atomically:YES];
41
S R Nayak

Swift 3.0

Vous trouverez ci-dessous le code pour lire et écrire des données dans un fichier .plist.

  1. Créez un fichier data.plist.

  2. Assurez-vous que l'objet racine est de type Dictionnaire.

    class PersistanceViewControllerA: UIViewController {

@IBOutlet weak var nationTextField: UITextField!
@IBOutlet weak var capitalTextField: UITextField!

@IBOutlet weak var textView: UITextView!

override func viewDidLoad() {
     super.viewDidLoad()
     displayNationAndCapitalCityNames()


//Get Path
func getPath() -> String {
  let plistFileName = "data.plist"
  let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
  let documentPath = paths[0] as NSString
  let plistPath = documentPath.appendingPathComponent(plistFileName)
  return plistPath
}


//Display Nation and Capital
func displayNationAndCapitalCityNames() {
  let plistPath = self.getPath()
  self.textView.text = ""
  if FileManager.default.fileExists(atPath: plistPath) {
    if let nationAndCapitalCitys = NSMutableDictionary(contentsOfFile: plistPath) {
        for (_, element) in nationAndCapitalCitys.enumerated() {
            self.textView.text = self.textView.text + "\(element.key) --> \(element.value) \n"
        }
    }
 }
}

//On Click OF Submit
@IBAction func onSubmit(_ sender: UIButton) {
    let plistPath = self.getPath()
    if FileManager.default.fileExists(atPath: plistPath) {
        let nationAndCapitalCitys = NSMutableDictionary(contentsOfFile: plistPath)!
        nationAndCapitalCitys.setValue(capitalTextField.text!, forKey: nationTextField.text!)
        nationAndCapitalCitys.write(toFile: plistPath, atomically: true)
    }
    nationTextField.text = ""
    capitalTextField.text = ""
    displayNationAndCapitalCityNames()
}

}

sortie: 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.Apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Canada</key>
    <string>Ottawa</string>
    <key>China</key>
    <string>Beijin</string>
    <key>Germany</key>
    <string>Berlin</string>
    <key>United Kingdom</key>
    <string>London</string>
    <key>United States of America</key>
    <string>Washington, D.C.</string>
</dict>
</plist>

 enter image description here

7
Ashok R

Exemple simple

NSString *filePath=[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"country.plist"];

// ADD Plist File
NSMutableArray *arr=[[NSMutableArray alloc]initWithObjects:@"India",@"USA" ,nil];
[arr writeToFile:filePath atomically:YES];


//Update
NSFileManager *fm=[NSFileManager defaultManager];
[arr removeObjectIdenticalTo:@"India"];
[fm removeItemAtPath:filePath error:nil];
[arr writeToFile:filePath atomically:YES];

 // Read

    NSMutableArray *arr=[[NSMutableArray alloc]initWithContentsOfFile:filePath];
0
Sunny Shah
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"plist.plist"]; 
NSFileManager *fileManager = [NSFileManager defaultManager];

if (![fileManager fileExistsAtPath: path]) {
    path = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat: @"yourfilename.plist"]];
}

NSMutableDictionary *data = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSMutableDictionary *data;

if ([fileManager fileExistsAtPath: path]) {
    data = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
} else {
    // If the file doesn’t exist, create an empty dictionary
    data = [[NSMutableDictionary alloc] init];
}

//To insert the data into the plist
int value = 5;
[data setObject:[NSNumber numberWithInt:value] forKey:@"value"];
[data writeToFile: path atomically:YES];

//To retrieve the data from the plist
NSMutableDictionary *savedStock = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
int savedvalue;
savedvalue = [[savedStock objectForKey:@"value"] intValue];
NSLog(@“%d”, savedvalue);
0
Anand