Develop

.swift-version

@@ -0,0 +1 @@
+3.0

PinterestLayout.podspec

@@ -0,0 +1,12 @@
+Pod::Spec.new do |s|
+    s.name         = "PinterestLayout"
+    s.version      = "1.0.0"
+    s.summary      = "Pinterest like layout."
+    s.homepage     = "https://github.com/romansorochak"
+    s.license      = "MIT"
+    s.author             = { "Roman Sorochak" => "roman.sorochak@gmail.com" }
+    s.platform     = :ios, "8.0"
+    s.ios.deployment_target = "8.0"
+    s.source       = { :git => "https://github.com/MagicLab-team/PinterestLayout.git", :tag => s.version }
+    s.source_files  = "PinterestLayout/*.swift"
+end

PinterestLayout.xcodeproj/project.pbxproj

@@ -7,15 +7,24 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		640095F71F0BC37F006AE391 /* CollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 640095F61F0BC37F006AE391 /* CollectionViewCell.swift */; };
+		644F27AA1F0BF039004AD5AD /* RoundedCornersView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 644F27A91F0BF039004AD5AD /* RoundedCornersView.swift */; };
+		B572E5EF1F0C20D100540F7C /* PinterestHeader.swift in Sources */ = {isa = PBXBuildFile; fileRef = B572E5EE1F0C20D100540F7C /* PinterestHeader.swift */; };
+		B5A3F3611F0FDFD3008E44BF /* CustomCollectionVC.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3F3601F0FDFD3008E44BF /* CustomCollectionVC.swift */; };
+		B5A3F3631F0FE119008E44BF /* PinterestVC.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3F3621F0FE119008E44BF /* PinterestVC.swift */; };
+		B5A3F3641F0FE1C2008E44BF /* PinterestLayout.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5CF9EF21F0BB1D200DAA3B7 /* PinterestLayout.swift */; };
+		B5A3F3651F0FE1D1008E44BF /* PinterestCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 646640331F0F99470076207D /* PinterestCell.swift */; };
+		B5A3F3661F0FE1D4008E44BF /* Help.swift in Sources */ = {isa = PBXBuildFile; fileRef = 646640371F0FD05A0076207D /* Help.swift */; };
+		B5A3F36A1F0FE241008E44BF /* PinterestLayoutDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3F3691F0FE241008E44BF /* PinterestLayoutDelegate.swift */; };
+		B5A3F36C1F0FE25F008E44BF /* PinterestLayoutAttributes.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3F36B1F0FE25F008E44BF /* PinterestLayoutAttributes.swift */; };
 		B5AFCBAC1F0BB16F00CB71B5 /* PinterestLayout.h in Headers */ = {isa = PBXBuildFile; fileRef = B5AFCBAA1F0BB16F00CB71B5 /* PinterestLayout.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		B5CF9EDE1F0BB19500DAA3B7 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5CF9EDD1F0BB19500DAA3B7 /* AppDelegate.swift */; };
-		B5CF9EE01F0BB19500DAA3B7 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5CF9EDF1F0BB19500DAA3B7 /* ViewController.swift */; };
+		B5CF9EE01F0BB19500DAA3B7 /* MyPinterestVC.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5CF9EDF1F0BB19500DAA3B7 /* MyPinterestVC.swift */; };
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 		B5CF9EED1F0BB1A800DAA3B7 /* PinterestLayout.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5AFCBA71F0BB16F00CB71B5 /* PinterestLayout.framework */; };
 		B5CF9EEE1F0BB1A800DAA3B7 /* PinterestLayout.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5AFCBA71F0BB16F00CB71B5 /* PinterestLayout.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		B5CF9EF31F0BB1D200DAA3B7 /* PinterestLayout.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5CF9EF21F0BB1D200DAA3B7 /* PinterestLayout.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -43,14 +52,23 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		640095F61F0BC37F006AE391 /* CollectionViewCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CollectionViewCell.swift; sourceTree = "<group>"; };
+		644F27A91F0BF039004AD5AD /* RoundedCornersView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = RoundedCornersView.swift; sourceTree = "<group>"; };
+		646640331F0F99470076207D /* PinterestCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PinterestCell.swift; sourceTree = "<group>"; };
+		646640371F0FD05A0076207D /* Help.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Help.swift; sourceTree = "<group>"; };
+		B572E5EE1F0C20D100540F7C /* PinterestHeader.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PinterestHeader.swift; sourceTree = "<group>"; };
+		B5A3F3601F0FDFD3008E44BF /* CustomCollectionVC.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CustomCollectionVC.swift; sourceTree = "<group>"; };
+		B5A3F3621F0FE119008E44BF /* PinterestVC.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PinterestVC.swift; sourceTree = "<group>"; };
+		B5A3F3691F0FE241008E44BF /* PinterestLayoutDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PinterestLayoutDelegate.swift; sourceTree = "<group>"; };
+		B5A3F36B1F0FE25F008E44BF /* PinterestLayoutAttributes.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PinterestLayoutAttributes.swift; sourceTree = "<group>"; };
 		B5AFCBA71F0BB16F00CB71B5 /* PinterestLayout.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = PinterestLayout.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		B5AFCBAA1F0BB16F00CB71B5 /* PinterestLayout.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = PinterestLayout.h; sourceTree = "<group>"; };
 		B5AFCBAB1F0BB16F00CB71B5 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		B5CF9EDB1F0BB19500DAA3B7 /* PinterestLayoutExample.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = PinterestLayoutExample.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		B5CF9EDD1F0BB19500DAA3B7 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		B5CF9EDF1F0BB19500DAA3B7 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		B5CF9EDF1F0BB19500DAA3B7 /* MyPinterestVC.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MyPinterestVC.swift; sourceTree = "<group>"; };
 		B5CF9EE21F0BB19500DAA3B7 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		B5CF9EE41F0BB19500DAA3B7 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		B5CF9EE41F0BB19500DAA3B7 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = PinterestLayoutExample/Assets.xcassets; sourceTree = SOURCE_ROOT; };
 		B5CF9EE71F0BB19500DAA3B7 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		B5CF9EE91F0BB19500DAA3B7 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		B5CF9EF21F0BB1D200DAA3B7 /* PinterestLayout.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PinterestLayout.swift; sourceTree = "<group>"; };
@@ -75,6 +93,43 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		640095F41F0BC340006AE391 /* UI */ = {
+			isa = PBXGroup;
+			children = (
+				640095F51F0BC34D006AE391 /* Views */,
+				B5CF9EE11F0BB19500DAA3B7 /* Main.storyboard */,
+				B5CF9EE61F0BB19500DAA3B7 /* LaunchScreen.storyboard */,
+			);
+			name = UI;
+			sourceTree = "<group>";
+		};
+		640095F51F0BC34D006AE391 /* Views */ = {
+			isa = PBXGroup;
+			children = (
+				640095F61F0BC37F006AE391 /* CollectionViewCell.swift */,
+				644F27A91F0BF039004AD5AD /* RoundedCornersView.swift */,
+				B572E5EE1F0C20D100540F7C /* PinterestHeader.swift */,
+			);
+			name = Views;
+			sourceTree = "<group>";
+		};
+		640095F81F0BC3E8006AE391 /* Recourses */ = {
+			isa = PBXGroup;
+			children = (
+				B5CF9EE41F0BB19500DAA3B7 /* Assets.xcassets */,
+			);
+			name = Recourses;
+			path = ../PinterestLayout;
+			sourceTree = "<group>";
+		};
+		B572E5ED1F0C0D5500540F7C /* Supporting Files */ = {
+			isa = PBXGroup;
+			children = (
+				B5CF9EE91F0BB19500DAA3B7 /* Info.plist */,
+			);
+			name = "Supporting Files";
+			sourceTree = "<group>";
+		};
 		B5AFCB9D1F0BB16F00CB71B5 = {
 			isa = PBXGroup;
 			children = (
@@ -97,8 +152,13 @@
 			isa = PBXGroup;
 			children = (
 				B5AFCBAA1F0BB16F00CB71B5 /* PinterestLayout.h */,
-				B5AFCBAB1F0BB16F00CB71B5 /* Info.plist */,
+				B5A3F3691F0FE241008E44BF /* PinterestLayoutDelegate.swift */,
+				B5A3F36B1F0FE25F008E44BF /* PinterestLayoutAttributes.swift */,
 				B5CF9EF21F0BB1D200DAA3B7 /* PinterestLayout.swift */,
+				B5A3F3621F0FE119008E44BF /* PinterestVC.swift */,
+				646640331F0F99470076207D /* PinterestCell.swift */,
+				646640371F0FD05A0076207D /* Help.swift */,
+				B5AFCBAB1F0BB16F00CB71B5 /* Info.plist */,
 			);
 			path = PinterestLayout;
 			sourceTree = "<group>";
@@ -107,11 +167,11 @@
 			isa = PBXGroup;
 			children = (
 				B5CF9EDD1F0BB19500DAA3B7 /* AppDelegate.swift */,
-				B5CF9EDF1F0BB19500DAA3B7 /* ViewController.swift */,
-				B5CF9EE11F0BB19500DAA3B7 /* Main.storyboard */,
-				B5CF9EE41F0BB19500DAA3B7 /* Assets.xcassets */,
-				B5CF9EE61F0BB19500DAA3B7 /* LaunchScreen.storyboard */,
-				B5CF9EE91F0BB19500DAA3B7 /* Info.plist */,
+				B5CF9EDF1F0BB19500DAA3B7 /* MyPinterestVC.swift */,
+				B5A3F3601F0FDFD3008E44BF /* CustomCollectionVC.swift */,
+				640095F41F0BC340006AE391 /* UI */,
+				640095F81F0BC3E8006AE391 /* Recourses */,
+				B572E5ED1F0C0D5500540F7C /* Supporting Files */,
 			);
 			path = PinterestLayoutExample;
 			sourceTree = "<group>";
@@ -234,16 +294,25 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				B5CF9EF31F0BB1D200DAA3B7 /* PinterestLayout.swift in Sources */,
+				B5A3F3651F0FE1D1008E44BF /* PinterestCell.swift in Sources */,
+				B5A3F3641F0FE1C2008E44BF /* PinterestLayout.swift in Sources */,
+				B5A3F3631F0FE119008E44BF /* PinterestVC.swift in Sources */,
+				B5A3F36A1F0FE241008E44BF /* PinterestLayoutDelegate.swift in Sources */,
+				B5A3F36C1F0FE25F008E44BF /* PinterestLayoutAttributes.swift in Sources */,
+				B5A3F3661F0FE1D4008E44BF /* Help.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 		B5CF9ED71F0BB19500DAA3B7 /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				B5CF9EE01F0BB19500DAA3B7 /* ViewController.swift in Sources */,
+				B5CF9EE01F0BB19500DAA3B7 /* MyPinterestVC.swift in Sources */,
 				B5CF9EDE1F0BB19500DAA3B7 /* AppDelegate.swift in Sources */,
+				B5A3F3611F0FDFD3008E44BF /* CustomCollectionVC.swift in Sources */,
+				640095F71F0BC37F006AE391 /* CollectionViewCell.swift in Sources */,
+				644F27AA1F0BF039004AD5AD /* RoundedCornersView.swift in Sources */,
+				B572E5EF1F0C20D100540F7C /* PinterestHeader.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -479,6 +548,7 @@
 				B5CF9EEB1F0BB19500DAA3B7 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
 	};

PinterestLayout/Help.swift

@@ -0,0 +1,109 @@
+//
+//  UIView+Constraints.swift
+//  PinterestLayout
+//
+//  Created by Khrystyna Shevchuk on 7/7/17.
+//  Copyright © 2017 MagicLab. All rights reserved.
+//
+
+import UIKit
+import AVFoundation
+
+
+public extension UIImage {
+    /**
+     Calculates the best height of the image for available width.
+     */
+    public func height(forWidth width: CGFloat) -> CGFloat {
+        let boundingRect = CGRect(
+            x: 0,
+            y: 0,
+            width: width,
+            height: CGFloat(MAXFLOAT)
+        )
+        let rect = AVMakeRect(
+            aspectRatio: size,
+            insideRect: boundingRect
+        )
+        return rect.size.height
+    }
+}
+
+
+public extension String {
+    /**
+     Calculates the best height of the text for available width and font used.
+     */
+    public func heightForWidth(width: CGFloat, font: UIFont) -> CGFloat {
+        let rect = NSString(string: self).boundingRect(
+            with: CGSize(width: width, height: CGFloat(MAXFLOAT)),
+            options: .usesLineFragmentOrigin,
+            attributes: [NSFontAttributeName: font],
+            context: nil
+        )
+        return ceil(rect.height)
+    }
+}
+
+extension UIFont {
+
+    class var defaultFont: UIFont {
+        return UIFont(name: "Arial-ItalicMT", size: 11)!
+    }
+}
+
+
+extension UIView {
+
+    func addConstraintsAlignedToSuperview(top: CGFloat = 0,
+                                          leading: CGFloat = 0,
+                                          bottom: CGFloat = 0,
+                                          trailing: CGFloat = 0) {
+        translatesAutoresizingMaskIntoConstraints = false
+
+        superview?.addConstraint(
+            NSLayoutConstraint(
+                item: self,
+                attribute: .top,
+                relatedBy: .equal,
+                toItem: superview,
+                attribute: .top,
+                multiplier: 1,
+                constant: top
+            )
+        )
+        superview?.addConstraint(
+            NSLayoutConstraint(
+                item: self,
+                attribute: .leading,
+                relatedBy: .equal,
+                toItem: superview,
+                attribute: .leading,
+                multiplier: 1,
+                constant: leading
+            )
+        )
+        superview?.addConstraint(
+            NSLayoutConstraint(
+                item: self,
+                attribute: .bottom,
+                relatedBy: .equal,
+                toItem: superview,
+                attribute: .bottom,
+                multiplier: 1,
+                constant: bottom
+            )
+        )
+        superview?.addConstraint(
+            NSLayoutConstraint(
+                item: self,
+                attribute: .trailing,
+                relatedBy: .equal,
+                toItem: superview,
+                attribute: .trailing,
+                multiplier: 1,
+                constant: trailing
+            )
+        )
+    }
+}