add screen record demo

Change-Id: Iaedbd79b9b3bacf562ccd25d8500472738853fec

RPScreenRecorder/README.md

+Shows how to use `RPScreenRecorder` to capture screen, app and microphone audio, writing the microphone audio to an AAC/M4A file using an `AVAssetWriter`, in Objective C.
+

RPScreenRecorder/RPScreenRecorder.xcodeproj/project.pbxproj

+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 48;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		6C3BDFFB20DA30710027D95A /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 6C3BDFFA20DA30710027D95A /* AppDelegate.m */; };
+		6C3BDFFE20DA30710027D95A /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 6C3BDFFD20DA30710027D95A /* ViewController.m */; };
+		6C3BE00120DA30710027D95A /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 6C3BDFFF20DA30710027D95A /* Main.storyboard */; };
+		6C3BE00320DA30710027D95A /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 6C3BE00220DA30710027D95A /* Assets.xcassets */; };
+		6C3BE00620DA30710027D95A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 6C3BE00420DA30710027D95A /* LaunchScreen.storyboard */; };
+		6C3BE00920DA30710027D95A /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 6C3BE00820DA30710027D95A /* main.m */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		6C3BDFF620DA30710027D95A /* RPScreenRecorder.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = RPScreenRecorder.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		6C3BDFF920DA30710027D95A /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
+		6C3BDFFA20DA30710027D95A /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
+		6C3BDFFC20DA30710027D95A /* ViewController.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ViewController.h; sourceTree = "<group>"; };
+		6C3BDFFD20DA30710027D95A /* ViewController.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ViewController.m; sourceTree = "<group>"; };
+		6C3BE00020DA30710027D95A /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		6C3BE00220DA30710027D95A /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		6C3BE00520DA30710027D95A /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		6C3BE00720DA30710027D95A /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		6C3BE00820DA30710027D95A /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		6C3BDFF320DA30710027D95A /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		6C3BDFED20DA30710027D95A = {
+			isa = PBXGroup;
+			children = (
+				6C3BDFF820DA30710027D95A /* RPScreenRecorder */,
+				6C3BDFF720DA30710027D95A /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		6C3BDFF720DA30710027D95A /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				6C3BDFF620DA30710027D95A /* RPScreenRecorder.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		6C3BDFF820DA30710027D95A /* RPScreenRecorder */ = {
+			isa = PBXGroup;
+			children = (
+				6C3BDFF920DA30710027D95A /* AppDelegate.h */,
+				6C3BDFFA20DA30710027D95A /* AppDelegate.m */,
+				6C3BDFFC20DA30710027D95A /* ViewController.h */,
+				6C3BDFFD20DA30710027D95A /* ViewController.m */,
+				6C3BDFFF20DA30710027D95A /* Main.storyboard */,
+				6C3BE00220DA30710027D95A /* Assets.xcassets */,
+				6C3BE00420DA30710027D95A /* LaunchScreen.storyboard */,
+				6C3BE00720DA30710027D95A /* Info.plist */,
+				6C3BE00820DA30710027D95A /* main.m */,
+			);
+			path = RPScreenRecorder;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		6C3BDFF520DA30710027D95A /* RPScreenRecorder */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 6C3BE00C20DA30710027D95A /* Build configuration list for PBXNativeTarget "RPScreenRecorder" */;
+			buildPhases = (
+				6C3BDFF220DA30710027D95A /* Sources */,
+				6C3BDFF320DA30710027D95A /* Frameworks */,
+				6C3BDFF420DA30710027D95A /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = RPScreenRecorder;
+			productName = RPScreenRecorder;
+			productReference = 6C3BDFF620DA30710027D95A /* RPScreenRecorder.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		6C3BDFEE20DA30710027D95A /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0920;
+				ORGANIZATIONNAME = "Rhythmic Fistman";
+				TargetAttributes = {
+					6C3BDFF520DA30710027D95A = {
+						CreatedOnToolsVersion = 9.2;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 6C3BDFF120DA30710027D95A /* Build configuration list for PBXProject "RPScreenRecorder" */;
+			compatibilityVersion = "Xcode 8.0";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 6C3BDFED20DA30710027D95A;
+			productRefGroup = 6C3BDFF720DA30710027D95A /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				6C3BDFF520DA30710027D95A /* RPScreenRecorder */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		6C3BDFF420DA30710027D95A /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				6C3BE00620DA30710027D95A /* LaunchScreen.storyboard in Resources */,
+				6C3BE00320DA30710027D95A /* Assets.xcassets in Resources */,
+				6C3BE00120DA30710027D95A /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		6C3BDFF220DA30710027D95A /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				6C3BDFFE20DA30710027D95A /* ViewController.m in Sources */,
+				6C3BE00920DA30710027D95A /* main.m in Sources */,
+				6C3BDFFB20DA30710027D95A /* AppDelegate.m in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		6C3BDFFF20DA30710027D95A /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				6C3BE00020DA30710027D95A /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		6C3BE00420DA30710027D95A /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				6C3BE00520DA30710027D95A /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		6C3BE00A20DA30710027D95A /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+			};
+			name = Debug;
+		};
+		6C3BE00B20DA30710027D95A /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		6C3BE00D20DA30710027D95A /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 6TZ958XNMU;
+				INFOPLIST_FILE = RPScreenRecorder/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = com.bairuitech.test;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		6C3BE00E20DA30710027D95A /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 6TZ958XNMU;
+				INFOPLIST_FILE = RPScreenRecorder/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = com.bairuitech.test;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		6C3BDFF120DA30710027D95A /* Build configuration list for PBXProject "RPScreenRecorder" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				6C3BE00A20DA30710027D95A /* Debug */,
+				6C3BE00B20DA30710027D95A /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		6C3BE00C20DA30710027D95A /* Build configuration list for PBXNativeTarget "RPScreenRecorder" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				6C3BE00D20DA30710027D95A /* Debug */,
+				6C3BE00E20DA30710027D95A /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 6C3BDFEE20DA30710027D95A /* Project object */;
+}

RPScreenRecorder/RPScreenRecorder/AppDelegate.h

+//
+//  AppDelegate.h
+//  RPScreenRecorder
+//
+//  Created by Rhythmic Fistman on 20/6/18.
+//  Copyright © 2018 Rhythmic Fistman. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : UIResponder <UIApplicationDelegate>
+
+@property (strong, nonatomic) UIWindow *window;
+
+
+@end
+

RPScreenRecorder/RPScreenRecorder/AppDelegate.m

+//
+//  AppDelegate.m
+//  RPScreenRecorder
+//
+//  Created by Rhythmic Fistman on 20/6/18.
+//  Copyright © 2018 Rhythmic Fistman. All rights reserved.
+//
+
+#import "AppDelegate.h"
+
+@interface AppDelegate ()
+
+@end
+
+@implementation AppDelegate
+
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+    // Override point for customization after application launch.
+    return YES;
+}
+
+
+- (void)applicationWillResignActive:(UIApplication *)application {
+    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+    // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+}
+
+
+- (void)applicationDidEnterBackground:(UIApplication *)application {
+    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+}
+
+
+- (void)applicationWillEnterForeground:(UIApplication *)application {
+    // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+}
+
+
+- (void)applicationDidBecomeActive:(UIApplication *)application {
+    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+}
+
+
+- (void)applicationWillTerminate:(UIApplication *)application {
+    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+}
+
+
+@end

RPScreenRecorder/RPScreenRecorder/Assets.xcassets/AppIcon.appiconset/Contents.json

+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file

RPScreenRecorder/RPScreenRecorder/Base.lproj/LaunchScreen.storyboard

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

RPScreenRecorder/RPScreenRecorder/Base.lproj/Main.storyboard

+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

RPScreenRecorder/RPScreenRecorder/Info.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">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

RPScreenRecorder/RPScreenRecorder/ViewController.h

+//
+//  ViewController.h
+//  RPScreenRecorder
+//
+//  Created by Rhythmic Fistman on 20/6/18.
+//  Copyright © 2018 Rhythmic Fistman. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface ViewController : UIViewController
+
+
+@end
+

RPScreenRecorder/RPScreenRecorder/ViewController.m

+//
+//  ViewController.m
+//  RPScreenRecorder
+//
+//  Created by Rhythmic Fistman on 20/6/18.
+//  Copyright © 2018 Rhythmic Fistman. All rights reserved.
+//
+
+// https://stackoverflow.com/questions/50935432/rpscreenrecorder-startcapturewithhandler-not-returning-microphone-sound-in-samp
+
+#import "ViewController.h"
+#import <ReplayKit/ReplayKit.h>
+#import <AVFoundation/AVFoundation.h>
+
+@interface ViewController ()
+
+@property (nonatomic) AVAssetWriter *writer;
+@property (nonatomic) AVAssetWriterInput *input;
+@property BOOL encounteredFirstBuffer;
+@property BOOL writing;
+
+@end
+
+@implementation ViewController
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+  
+    NSURL *fileUrl = [[NSFileManager.defaultManager URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask][0] URLByAppendingPathComponent:@"output.m4a"];
+    [NSFileManager.defaultManager removeItemAtURL:fileUrl error:nil];
+    
+    NSError *error;
+    self.writer = [[AVAssetWriter alloc] initWithURL:fileUrl fileType:AVFileTypeAppleM4A error:&error];
+    if (!self.writer) {
+        NSLog(@"writer: %@", error);
+        abort();
+    }
+    
+    AudioChannelLayout acl = { 0 };
+    acl.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
+    self.input = [[AVAssetWriterInput alloc] initWithMediaType:AVMediaTypeAudio outputSettings:@{ AVFormatIDKey: @(kAudioFormatMPEG4AAC), AVSampleRateKey: @(44100),  AVChannelLayoutKey: [NSData dataWithBytes: &acl length: sizeof( acl ) ], AVEncoderBitRateKey: @(64000)}];
+    
+    [self.writer addInput:self.input];
+    [self.writer startWriting];
+    
+    RPScreenRecorder *recorder = [RPScreenRecorder sharedRecorder];
+
+    recorder.microphoneEnabled = YES;
+    
+    [self performSelector:@selector(stop) withObject:nil afterDelay:6];
+    
+    self.writing = YES;
+    
+    [recorder startCaptureWithHandler:^(CMSampleBufferRef sampleBuffer, RPSampleBufferType bufferType, NSError* error) {
+        NSLog(@"Capture %@, %li, %@", sampleBuffer, (long)bufferType, error);
+        
+        // BAD racy
+        if (RPSampleBufferTypeAudioMic == bufferType && self.writing) {
+            if(!self.encounteredFirstBuffer) {
+                [self.writer startSessionAtSourceTime:CMSampleBufferGetPresentationTimeStamp(sampleBuffer)];
+                self.encounteredFirstBuffer = YES;
+            }
+            [self.input appendSampleBuffer:sampleBuffer];
+        }
+    } completionHandler:^(NSError* error) {
+        NSLog(@"startCapture: %@", error);
+    }];
+    recorder.microphoneEnabled = YES;
+
+}
+
+- (void)stop {
+    self.writing = NO;
+    [self.writer finishWritingWithCompletionHandler:^{
+        NSLog(@"finish...!");
+    }];
+}
+
+@end

RPScreenRecorder/RPScreenRecorder/main.m

+//
+//  main.m
+//  RPScreenRecorder
+//
+//  Created by Rhythmic Fistman on 20/6/18.
+//  Copyright © 2018 Rhythmic Fistman. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+#import "AppDelegate.h"
+
+int main(int argc, char * argv[]) {
+    @autoreleasepool {
+        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+    }
+}