Data.plist

<?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">
<array>
    <dict>
        <key>size</key>
        <string>26</string>
        <key>name</key>
        <string>5</string>
        <key>ph</key>
        <string>1</string>
    </dict>
    <dict>
        <key>size</key>
        <string>26</string>
        <key>name</key>
        <string>4</string>
        <key>ph</key>
        <string>1</string>
    </dict>
	<dict>
		<key>size</key>
		<string>18</string>
		<key>name</key>
		<string>3</string>
		<key>ph</key>
		<string>3</string>
	</dict>
	<dict>
		<key>size</key>
		<string>24</string>
		<key>ph</key>
		<string>1</string>
		<key>name</key>
		<string>2</string>
	</dict>
	<dict>
		<key>size</key>
		<string>18</string>
		<key>ph</key>
		<string>1</string>
		<key>name</key>
		<string>1</string>
	</dict>
</array>
</plist>

ViewController.m

//
//  ViewController.m
//  segmentTest
//
//  Created by Paul Wilkinson on 15/10/2014.
//  Copyright (c) 2014 Paul Wilkinson. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@property (nonatomic,strong) NSArray *myArrayOfDictionaries;
@property (nonatomic,strong) NSArray *filteredArray;
@property (nonatomic,strong) NSMutableArray *predicates;
@property (nonatomic,strong) NSArray *predicateKeys;
@property (weak,nonatomic) IBOutlet UITableView *tableview;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    NSString *plistPath=[[NSBundle mainBundle] pathForResource:@"Data" ofType:@"plist"];
    self.myArrayOfDictionaries=[NSArray arrayWithContentsOfFile:plistPath];
   
    self.predicateKeys=@[@"size",@"ph"];
    self.predicates=[NSMutableArray new];
    for (int i=0;i<self.predicateKeys.count;i++) {
        [self.predicates addObject:[NSNull null]];
    }
    
    [self setupFilteredArray];
}

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

#pragma mark - filtering

-(void) setupFilteredArray {
    
    NSArray *tempArray=[NSArray arrayWithArray:self.myArrayOfDictionaries];
    
    for (int i=0;i<self.predicates.count; i++) {
        NSPredicate *pred=self.predicates[i];
        if (![[NSNull null] isEqual:pred]) {
            tempArray=[tempArray filteredArrayUsingPredicate:pred];
        }
    }
    
    self.filteredArray=tempArray;
    
    [self.tableview reloadData];
}

-(IBAction)segmentChanged:(UISegmentedControl *)sender
{
    
    NSPredicate *pred;
    
    NSUInteger controlTag=sender.tag;
    
    NSString *segmentValue=[sender titleForSegmentAtIndex:sender.selectedSegmentIndex];
    if ([segmentValue isEqualToString:@"-"]) {
        pred=(NSPredicate *)[NSNull null];
    }
    else {
        pred=[NSPredicate predicateWithFormat:@"(%K == %@)",self.predicateKeys[controlTag],segmentValue];
    }
    
    self.predicates[controlTag]=pred;
    
    [self setupFilteredArray];
    
}


#pragma mark - UITableView Data source

-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.filteredArray.count;
}

-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellIdentifier=@"Cell";
    
    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:cellIdentifier];
    
    NSDictionary *dict=(NSDictionary *)self.filteredArray[indexPath.row];
    
    cell.textLabel.text=dict[@"name"];
    
    return cell;
}

@end