DEV'S

Multi Section UITableView - UIPickerView

ViewController.h
//
//  ViewController.h
//  MultiSectionExample

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UIPickerViewDataSource,UIPickerViewDelegate>

@property (strong, nonatomic) IBOutlet UITextField *myTxtField;

@property (nonatomic,retain)UIPickerView *myPickerView;

@property (nonatomic,retain) NSDictionary *myPickerDictionary;

@end

ViewController.m

//
//  ViewController.m
//  MultiSectionExample
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

@synthesize myPickerView,myTxtField,myPickerDictionary;

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // Do any additional setup after loading the view, typically from a nib.
    
    myPickerDictionary = @{@"name":@[@"Dev",@"Vasu",@"Raju",@"Shiva"],@"subject":@[@"Math",@"Physics",@"Chemistry"],@"result":@[@"Pass",@"Fail"]};
    
    myPickerView = [[UIPickerView alloc]init];
    [myPickerView setDataSource:self];
    [myPickerView setDelegate:self];
    
    [myTxtField setInputView:myPickerView];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
   
    [self.view endEditing:YES];

}

#pragma mark - UIPickerViewDataSource functions below

// returns the number of ‘columns’ to display.
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
    
    return 3;

}

// returns the # of rows in each component..
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
    
    if (component == 0){
        return [[myPickerDictionary objectForKey:@"name"] count];
    }else if (component == 1){
        return [[myPickerDictionary objectForKey:@"subject"] count];
    }else{
        return [[myPickerDictionary objectForKey:@"result"] count];
    }
    
    //return 1;
}

#pragma mark - UIPickerViewDelegate functions below

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
    
    if (component == 0){
        return [[myPickerDictionary objectForKey:@"name"] objectAtIndex:row];
    }else if (component == 1){
        return [[myPickerDictionary objectForKey:@"subject"] objectAtIndex:row];
    }else{
        return [[myPickerDictionary objectForKey:@"result"] objectAtIndex:row];
    }

}

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{

    NSInteger selectedIndex1 = [myPickerView selectedRowInComponent:0];
    NSInteger selectedIndex2 = [myPickerView selectedRowInComponent:1];
    NSInteger selectedIndex3 = [myPickerView selectedRowInComponent:2];
    
    NSString *name = [[myPickerDictionary objectForKey:@"name"]  objectAtIndex:selectedIndex1];
    
    NSString *subject = [[myPickerDictionary objectForKey:@"subject"]  objectAtIndex:selectedIndex2];
    
    NSString *result = [[myPickerDictionary objectForKey:@"result"]  objectAtIndex:selectedIndex3];
    
    
    myTxtField.text = [NSString stringWithFormat:@"%@/%@/%@", name,subject,result];
    

}

@end

MyTableViewController.h

//
//  MyTableViewController.h
//  MultiSectionExample
//

#import <UIKit/UIKit.h>

@interface MyTableViewController : UITableViewController

@property (nonatomic,retain) NSDictionary *hotelMenu;

@end

MyTableViewController.m

//
//  MyTableViewController.m
//  MultiSectionExample
//

#import "MyTableViewController.h"

@interface MyTableViewController ()

@end

@implementation MyTableViewController

@synthesize hotelMenu;

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;
    
    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;
    
    hotelMenu = @{@"Veg":@[@"Idli",@"Dosa",@"Pongal",@"Puri"],@"NonVeg":@[@"Chicken Biriyani",@"Mutton Biriyani",@"Chicken 65",@"Fish Fry"],@"Bevarages":@[@"Lemon Soda",@"Pepsi",@"Coca Cola",@"Sprite"]};
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
//#warning Incomplete implementation, return the number of sections
    return 3;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
//#warning Incomplete implementation, return the number of rows
    if (section == 0){
        return [[hotelMenu objectForKey:@"Veg"] count];
    }else if(section == 1){
        return [[hotelMenu objectForKey:@"NonVeg"] count];
    
    }else{
        return [[hotelMenu objectForKey:@"Bevarages"] count];
    }
    
    //return 0;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"MyCell" forIndexPath:indexPath];
    
    NSInteger section = indexPath.section;
    NSArray *foods;
    if (section == 0){
        foods = [hotelMenu objectForKey:@"Veg"];
        
    }else if (section == 1){
        foods = [hotelMenu objectForKey:@"NonVeg"];
        
    }else{
        foods = [hotelMenu objectForKey:@"Bevarages"];
    }
    
    cell.textLabel.text = [foods objectAtIndex:indexPath.row];
    
    // Configure the cell…
    
    return cell;
}

-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{

    if (section == 0){
        return @"Veg";
    }else if (section == 1){
        return @"NonVeg";
    }else{
        return @"Bevarages";
    }
    

}

/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    // Return NO if you do not want the specified item to be editable.
    return YES;
}
*/

/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    } else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }   
}
*/

/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
}
*/

/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
    // Return NO if you do not want the item to be re-orderable.
    return YES;
}
*/

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end

iOS

2017-12-19 00:07:26
1) CoreData - UIDatePicker - Part2 - Final
2017-12-18 23:29:30
2) CoreData - UIDatePicker - Part1
2017-12-18 05:09:33
3) Shopping List App - Swift Part 2 - ActionSheet
2017-12-18 03:22:51
4) Shopping List App - Swift Part 1
2017-12-17 23:34:49
5) Swift - Introduction - WebService
2017-12-15 03:30:23
6) Shopping List IOS App - Part 2
2017-12-15 01:21:10
7) Shopping List IOS App - Part 1
2017-12-14 21:58:22
8) Shopping List IOS App - API Calls
2017-12-14 03:48:37
9) Delegate - Protocols - WebService
2017-12-13 04:28:23
10) NSMutableArray - NSMutableDictionary - TableViewController
2017-12-13 02:47:13
11) UITableViewController
2017-12-12 22:59:32
12) Segue Forward And Unwind
2016-02-27 03:20:22
13) GoogleMap Addon
2016-02-26 04:06:38
14) UILocalNotification With NSNotificationCenter
2016-02-25 03:51:07
15) CLLocationManager Example
2016-02-24 03:27:59
16) UIImagePickerController Using Camera And PhotoLibrary
2016-02-23 02:08:19
17) Multi Section UITableView - UIPickerView
2016-02-18 03:16:09
18) Hello World IOS App Using Swift
2016-02-17 03:10:24
19) Swift Programming Language - Playground
2016-02-15 02:06:55
20) TabBar Controller
2016-02-15 02:06:55
21) Understanding Auto Layout and Layout Constraints
2016-02-10 22:56:12
22) Shopping List App - Cloud - Part 3 - Final
2016-02-09 04:12:06
23) Shopping List App - Cloud - Part 2
2016-02-08 03:21:52
24) Shopping List App - Cloud - Part 1
2016-02-05 03:24:01
25) Protocol And Delegates With NSURLSession
2016-02-04 00:59:51
26) Webservice Using NSURLSession
2016-02-02 02:09:13
27) UIPickerView Addon - InputView And AccessoryView For UITextField
2016-02-02 02:07:12
28) Protocol And Delegates
2016-02-01 00:37:02
29) UIPickerView - Add Programmatically
2016-01-30 00:52:48
30) NSUserDefaults - UIAlertControler - Back Navigation Title Change
2016-01-29 02:01:06
31) CoreData - StudentsRecord App
2016-01-27 21:54:28
32) Manual Segue
2016-01-27 00:04:21
33) TableViewController Example
2016-01-25 02:08:16
34) NSArray And NSDictionary
2016-01-23 03:23:10
35) Reverse (Unwind) Segue
2016-01-22 00:56:28
36) ViewController - Segue - Messages
2014-12-22 05:29:28
37) WebService Example
2014-12-22 05:16:57
38) CoreData Example

© Vasudev.H / Email: tech3in@live.com