Adds SampleViewController and a button on main view controller to present it.

ModalPresentation.xcodeproj/project.pbxproj

@@ -14,6 +14,7 @@
 		2E4683B819DFE437001ECA2E /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 2E4683B719DFE437001ECA2E /* Images.xcassets */; };
 		2E4683BB19DFE437001ECA2E /* LaunchScreen.xib in Resources */ = {isa = PBXBuildFile; fileRef = 2E4683B919DFE437001ECA2E /* LaunchScreen.xib */; };
 		2E4683C719DFE438001ECA2E /* ModalPresentationTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 2E4683C619DFE438001ECA2E /* ModalPresentationTests.m */; };
+		2E4683D219DFE60D001ECA2E /* SampleViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2E4683D119DFE60D001ECA2E /* SampleViewController.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -40,6 +41,8 @@
 		2E4683C019DFE437001ECA2E /* ModalPresentationTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = ModalPresentationTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		2E4683C519DFE438001ECA2E /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		2E4683C619DFE438001ECA2E /* ModalPresentationTests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ModalPresentationTests.m; sourceTree = "<group>"; };
+		2E4683D019DFE60D001ECA2E /* SampleViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SampleViewController.h; sourceTree = "<group>"; };
+		2E4683D119DFE60D001ECA2E /* SampleViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SampleViewController.m; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -89,6 +92,8 @@
 				2E4683B719DFE437001ECA2E /* Images.xcassets */,
 				2E4683B919DFE437001ECA2E /* LaunchScreen.xib */,
 				2E4683AA19DFE437001ECA2E /* Supporting Files */,
+				2E4683D019DFE60D001ECA2E /* SampleViewController.h */,
+				2E4683D119DFE60D001ECA2E /* SampleViewController.m */,
 			);
 			path = ModalPresentation;
 			sourceTree = "<group>";
@@ -220,6 +225,7 @@
 			files = (
 				2E4683B319DFE437001ECA2E /* ViewController.m in Sources */,
 				2E4683B019DFE437001ECA2E /* AppDelegate.m in Sources */,
+				2E4683D219DFE60D001ECA2E /* SampleViewController.m in Sources */,
 				2E4683AD19DFE437001ECA2E /* main.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

ModalPresentation/Base.lproj/Main.storyboard

@@ -1,13 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="vXZ-lx-hvc">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6245" systemVersion="13F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="vXZ-lx-hvc">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+        <deployment defaultVersion="1792" identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6238"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
         <scene sceneID="ufC-wZ-h7g">
             <objects>
-                <viewController id="vXZ-lx-hvc" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
+                <viewController id="vXZ-lx-hvc" customClass="ViewController" sceneMemberID="viewController">
                     <layoutGuides>
                         <viewControllerLayoutGuide type="top" id="jyV-Pf-zRb"/>
                         <viewControllerLayoutGuide type="bottom" id="2fi-mo-0CV"/>
@@ -15,7 +16,22 @@
                     <view key="view" contentMode="scaleToFill" id="kh9-bI-dsS">
                         <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Ok9-dI-8dO">
+                                <rect key="frame" x="196" y="285" width="208" height="30"/>
+                                <state key="normal" title="Present Modal View Controller">
+                                    <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
+                                </state>
+                                <connections>
+                                    <action selector="presentModalViewControllerButtonTapped:" destination="vXZ-lx-hvc" eventType="touchUpInside" id="e9x-yb-lWU"/>
+                                </connections>
+                            </button>
+                        </subviews>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <constraints>
+                            <constraint firstAttribute="centerY" secondItem="Ok9-dI-8dO" secondAttribute="centerY" id="Ikv-8c-xd3"/>
+                            <constraint firstAttribute="centerX" secondItem="Ok9-dI-8dO" secondAttribute="centerX" id="iLt-lf-dMg"/>
+                        </constraints>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="x5A-6p-PRh" sceneMemberID="firstResponder"/>

ModalPresentation/SampleViewController.h

@@ -0,0 +1,26 @@
+//
+//  SampleViewController.h
+//  ModalPresentation
+//
+//  Created by Wojciech Nagrodzki on 04/10/2014.
+//
+//
+
+#import <UIKit/UIKit.h>
+
+@class SampleViewController;
+
+
+@protocol SampleViewControllerDelegate <NSObject>
+
+- (void)sampleViewControllerRequiredDismiss:(SampleViewController *)sampleViewController;
+
+@end
+
+
+@interface SampleViewController : UIViewController
+
+@property (strong, nonatomic) UIColor * viewBackgroundColor;
+@property (weak, nonatomic) id <SampleViewControllerDelegate> delegate;
+
+@end

ModalPresentation/SampleViewController.m

@@ -0,0 +1,89 @@
+//
+//  SampleViewController.m
+//  ModalPresentation
+//
+//  Created by Wojciech Nagrodzki on 04/10/2014.
+//
+//
+
+#import "SampleViewController.h"
+
+@interface SampleViewController ()
+
+@property (strong, nonatomic, readonly) UILabel * label;
+
+@end
+
+@implementation SampleViewController
+
+#pragma mark - Public Properties
+
+- (void)setViewBackgroundColor:(UIColor *)viewBackgroundColor
+{
+    _viewBackgroundColor = viewBackgroundColor;
+    self.view.backgroundColor = viewBackgroundColor;
+}
+
+#pragma mark - Public Class Methods
+#pragma mark - Public Instance Methods
+#pragma mark - IBActions
+
+- (void)dismissButtonTapped:(UIButton *)sender
+{
+    [self.delegate sampleViewControllerRequiredDismiss:self];
+}
+
+#pragma mark - Overridden
+
+- (instancetype)init
+{
+    self = [super init];
+    if (self) {
+        _viewBackgroundColor = [UIColor colorWithRed:0.1882 green:0.6431 blue:0.8667 alpha:1.0000];
+    }
+    return self;
+}
+
+- (void)loadView
+{
+    UIView * view = [[UIView alloc] init];
+    
+    _label = [[UILabel alloc] init];
+    _label.textAlignment = NSTextAlignmentCenter;
+    _label.numberOfLines = 0;
+    _label.translatesAutoresizingMaskIntoConstraints = NO;
+    [view addSubview:_label];
+    
+    NSDictionary * views = NSDictionaryOfVariableBindings(_label);
+    [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_label]|" options:0 metrics:nil views:views]];
+    [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[_label]|" options:0 metrics:nil views:views]];
+    
+    UIButton * button = [UIButton buttonWithType:UIButtonTypeSystem];
+    [button setTitle:@"Dismiss" forState:UIControlStateNormal];
+    [button addTarget:self action:@selector(dismissButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
+    button.translatesAutoresizingMaskIntoConstraints = NO;
+    [view addSubview:button];
+    
+    views = NSDictionaryOfVariableBindings(button);
+    [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[button]-|" options:0 metrics:nil views:views]];
+    [view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-32-[button]" options:0 metrics:nil views:views]];
+    
+    self.view = view;
+}
+
+- (void)viewDidLoad
+{
+    [super viewDidLoad];
+    
+    self.view.backgroundColor = self.viewBackgroundColor;
+    self.label.text = [NSString stringWithFormat:@"Sample View Controller\n"
+                                                 @"Preferred Content Size: %@", NSStringFromCGSize(self.preferredContentSize)];
+}
+
+#pragma mark - Private Properties
+#pragma mark - Private Class Methods
+#pragma mark - Private Instance Methods
+#pragma mark - Protocols
+#pragma mark - Notifications
+
+@end

ModalPresentation/ViewController.m

@@ -7,21 +7,30 @@
 //
 
 #import "ViewController.h"
+#import "SampleViewController.h"
 
-@interface ViewController ()
+
+@interface ViewController () <SampleViewControllerDelegate>
 
 @end
 
+
 @implementation ViewController
 
-- (void)viewDidLoad {
+#pragma mark - IBActions
-    [super viewDidLoad];
+
-    // Do any additional setup after loading the view, typically from a nib.
+- (IBAction)presentModalViewControllerButtonTapped:(id)sender
+{
+    SampleViewController * sampleViewController = [[SampleViewController alloc] init];
+    sampleViewController.delegate = self;
+    [self presentViewController:sampleViewController animated:YES completion:nil];
 }
 
-- (void)didReceiveMemoryWarning {
+#pragma mark - SampleViewControllerDelegate
-    [super didReceiveMemoryWarning];
+
-    // Dispose of any resources that can be recreated.
+- (void)sampleViewControllerRequiredDismiss:(SampleViewController *)sampleViewController
+{
+    [self dismissViewControllerAnimated:YES completion:nil];
 }
 
 @end