SettingsViewController

SettingsViewController.h

//
//  SettingsViewController.h
//  HFG Vertretungsplan
//
//  Created by Jonas Frey on 13.05.14.
//  Copyright (c) 2014 Jonas Frey. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface SettingsViewController : UIViewController <UIPickerViewDataSource, UIPickerViewDelegate>

@property (weak, nonatomic) IBOutlet UITextField *userTextField;
@property (weak, nonatomic) IBOutlet UITextField *passwordTextField;
@property (weak, nonatomic) IBOutlet UIPickerView *elementPicker;
@property (nonatomic, strong) NSMutableArray *elements;

- (IBAction)userOrPasswordChanged:(id)sender;

@end

SettingsViewController.m

//
//  SettingsViewController.m
//  HFG Vertretungsplan
//
//  Created by Jonas Frey on 13.05.14.
//  Copyright (c) 2014 Jonas Frey. All rights reserved.
//

#import "SettingsViewController.h"
#import "NSData+CommonCrypto.h"
#import "JFUtils.h"
#import "SVProgressHUD.h"

@interface SettingsViewController ()

@end

@implementation SettingsViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.elements = [NSMutableArray arrayWithObjects:@"Object 1", @"Object 2", @"Object 3", nil];
    NSLog(@"%@", self.elements);
    
    [self loadContent];
}

- (void)loadContent {
    NSData *passwordData = [[NSUserDefaults standardUserDefaults] objectForKey:JFSettingsKeyPassword];
    NSError *error = nil;
    self.passwordTextField.text = [[NSString alloc] initWithData:[passwordData decryptedAES256DataUsingKey:@"Password" error:&error] encoding:NSUTF8StringEncoding];
    if (error) {
        NSLog(@"Error encrypting password: \n%@", error);
        [SVProgressHUD showErrorWithStatus:@"Fehler beim Laden der Anmeldeinformationen"];
        passwordData = nil;
        return;
    }
    self.userTextField.text = [[NSUserDefaults standardUserDefaults] objectForKey:JFSettingsKeyUser];
    passwordData = nil;
}

- (IBAction)userOrPasswordChanged:(id)sender {...}

- (void)viewWillDisappear:(BOOL)animated {...}

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
    [[NSUserDefaults standardUserDefaults] setObject:[self.elements objectAtIndex:row] forKey:JFSettingsKeyElement];
    [[NSUserDefaults standardUserDefaults] synchronize];
}

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
    NSLog(@"numberOfComponentsInPickerView: %@", self.elements);
    return 1;
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
    return [self.elements count];
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
    return [self.elements objectAtIndex:row];
}

@end