ios: demo app support input URL and QRCode scan after iOS 7

ios/IJKMediaDemo/IJKMediaDemo.xcodeproj/project.pbxproj

@@ -9,6 +9,15 @@
 /* Begin PBXBuildFile section */
 		45D57D611A53233200BDD389 /* CoreVideo.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 45D57D601A53233200BDD389 /* CoreVideo.framework */; };
 		45D57D631A53233800BDD389 /* VideoToolbox.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 45D57D621A53233800BDD389 /* VideoToolbox.framework */; };
+		55E809E21B143C47003E98A5 /* IJKDemoMainViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 55E809E11B143C47003E98A5 /* IJKDemoMainViewController.m */; };
+		55E809E41B143C85003E98A5 /* IJKDemoMainViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 55E809E31B143C85003E98A5 /* IJKDemoMainViewController.xib */; };
+		55E809E61B145B55003E98A5 /* LaunchScreen.xib in Resources */ = {isa = PBXBuildFile; fileRef = 55E809E51B145B55003E98A5 /* LaunchScreen.xib */; };
+		55E809EA1B145BC2003E98A5 /* IJKDemoInputURLViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 55E809E81B145BC2003E98A5 /* IJKDemoInputURLViewController.m */; };
+		55E809EB1B145BC2003E98A5 /* IJKDemoInputURLViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 55E809E91B145BC2003E98A5 /* IJKDemoInputURLViewController.xib */; };
+		55E809EE1B146C1E003E98A5 /* IJKQRCodeScanViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 55E809ED1B146C1E003E98A5 /* IJKQRCodeScanViewController.m */; };
+		55E809F11B146C80003E98A5 /* Barcode.m in Sources */ = {isa = PBXBuildFile; fileRef = 55E809F01B146C80003E98A5 /* Barcode.m */; };
+		55E809F31B146DE8003E98A5 /* IJKQRCodeScanViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 55E809F21B146DE8003E98A5 /* IJKQRCodeScanViewController.xib */; };
+		55E809F61B1480BC003E98A5 /* IJKDemoHistory.m in Sources */ = {isa = PBXBuildFile; fileRef = 55E809F51B1480BC003E98A5 /* IJKDemoHistory.m */; };
 		E60E8C2A19EF70BB005B5B6E /* CoreMedia.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = E60E8C2919EF70BB005B5B6E /* CoreMedia.framework */; };
 		E60FFBE418BF695700825D7F /* libIJKMediaPlayer.a in Frameworks */ = {isa = PBXBuildFile; fileRef = E6D74F2E18A5F94B00165BFD /* libIJKMediaPlayer.a */; };
 		E612EAE517F7E0F800BEE660 /* MediaPlayer.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = E612EAE417F7E0F800BEE660 /* MediaPlayer.framework */; };
@@ -62,6 +71,20 @@
 /* Begin PBXFileReference section */
 		45D57D601A53233200BDD389 /* CoreVideo.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreVideo.framework; path = System/Library/Frameworks/CoreVideo.framework; sourceTree = SDKROOT; };
 		45D57D621A53233800BDD389 /* VideoToolbox.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = VideoToolbox.framework; path = System/Library/Frameworks/VideoToolbox.framework; sourceTree = SDKROOT; };
+		55E809E01B143C47003E98A5 /* IJKDemoMainViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJKDemoMainViewController.h; sourceTree = "<group>"; };
+		55E809E11B143C47003E98A5 /* IJKDemoMainViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJKDemoMainViewController.m; sourceTree = "<group>"; };
+		55E809E31B143C85003E98A5 /* IJKDemoMainViewController.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; path = IJKDemoMainViewController.xib; sourceTree = "<group>"; };
+		55E809E51B145B55003E98A5 /* LaunchScreen.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; path = LaunchScreen.xib; sourceTree = "<group>"; };
+		55E809E71B145BC2003E98A5 /* IJKDemoInputURLViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJKDemoInputURLViewController.h; sourceTree = "<group>"; };
+		55E809E81B145BC2003E98A5 /* IJKDemoInputURLViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJKDemoInputURLViewController.m; sourceTree = "<group>"; };
+		55E809E91B145BC2003E98A5 /* IJKDemoInputURLViewController.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; path = IJKDemoInputURLViewController.xib; sourceTree = "<group>"; };
+		55E809EC1B146C1E003E98A5 /* IJKQRCodeScanViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJKQRCodeScanViewController.h; sourceTree = "<group>"; };
+		55E809ED1B146C1E003E98A5 /* IJKQRCodeScanViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJKQRCodeScanViewController.m; sourceTree = "<group>"; };
+		55E809EF1B146C80003E98A5 /* Barcode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Barcode.h; sourceTree = "<group>"; };
+		55E809F01B146C80003E98A5 /* Barcode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = Barcode.m; sourceTree = "<group>"; };
+		55E809F21B146DE8003E98A5 /* IJKQRCodeScanViewController.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; path = IJKQRCodeScanViewController.xib; sourceTree = "<group>"; };
+		55E809F41B1480BC003E98A5 /* IJKDemoHistory.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJKDemoHistory.h; sourceTree = "<group>"; };
+		55E809F51B1480BC003E98A5 /* IJKDemoHistory.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJKDemoHistory.m; sourceTree = "<group>"; };
 		E60E8C2719EF70A7005B5B6E /* CoreAudio.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreAudio.framework; path = System/Library/Frameworks/CoreAudio.framework; sourceTree = SDKROOT; };
 		E60E8C2919EF70BB005B5B6E /* CoreMedia.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreMedia.framework; path = System/Library/Frameworks/CoreMedia.framework; sourceTree = SDKROOT; };
 		E612EAE417F7E0F800BEE660 /* MediaPlayer.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = MediaPlayer.framework; path = System/Library/Frameworks/MediaPlayer.framework; sourceTree = SDKROOT; };
@@ -130,6 +153,8 @@
 			isa = PBXGroup;
 			children = (
 				E63FC27817F032FD003551EB /* IJKCommon.h */,
+				55E809EF1B146C80003E98A5 /* Barcode.h */,
+				55E809F01B146C80003E98A5 /* Barcode.m */,
 			);
 			name = Misc;
 			sourceTree = "<group>";
@@ -212,6 +237,7 @@
 				E6903F1317EAF70200CFD954 /* Default@2x.png */,
 				E6903F1517EAF70200CFD954 /* Default-568h@2x.png */,
 				E6166C9B17EDA4A20006B956 /* IJKMediaDemo-Prefix.pch */,
+				55E809E51B145B55003E98A5 /* LaunchScreen.xib */,
 			);
 			name = "Supporting Files";
 			sourceTree = "<group>";
@@ -219,11 +245,22 @@
 		E6A9B55C17EDA6AC00A1A500 /* View Controllers */ = {
 			isa = PBXGroup;
 			children = (
+				55E809E01B143C47003E98A5 /* IJKDemoMainViewController.h */,
+				55E809E11B143C47003E98A5 /* IJKDemoMainViewController.m */,
+				55E809E31B143C85003E98A5 /* IJKDemoMainViewController.xib */,
 				E6A9B56117EDA72C00A1A500 /* IJKMoviePlayerViewController.h */,
 				E6A9B56217EDA72C00A1A500 /* IJKMoviePlayerViewController.m */,
 				E6A9B56317EDA72C00A1A500 /* IJKMoviePlayerViewController.xib */,
 				E66F8DC917EEDD8B00354D80 /* IJKMediaControl.h */,
 				E66F8DCA17EEDD8B00354D80 /* IJKMediaControl.m */,
+				55E809E71B145BC2003E98A5 /* IJKDemoInputURLViewController.h */,
+				55E809E81B145BC2003E98A5 /* IJKDemoInputURLViewController.m */,
+				55E809E91B145BC2003E98A5 /* IJKDemoInputURLViewController.xib */,
+				55E809EC1B146C1E003E98A5 /* IJKQRCodeScanViewController.h */,
+				55E809ED1B146C1E003E98A5 /* IJKQRCodeScanViewController.m */,
+				55E809F21B146DE8003E98A5 /* IJKQRCodeScanViewController.xib */,
+				55E809F41B1480BC003E98A5 /* IJKDemoHistory.h */,
+				55E809F51B1480BC003E98A5 /* IJKDemoHistory.m */,
 			);
 			name = "View Controllers";
 			sourceTree = "<group>";
@@ -320,7 +357,11 @@
 				E66F8DE117EEF73600354D80 /* btn_player_pause.png in Resources */,
 				E66F8DE217EEF73600354D80 /* btn_player_pause@2x.png in Resources */,
 				E66F8DE317EEF73600354D80 /* btn_player_play.png in Resources */,
+				55E809E41B143C85003E98A5 /* IJKDemoMainViewController.xib in Resources */,
+				55E809F31B146DE8003E98A5 /* IJKQRCodeScanViewController.xib in Resources */,
+				55E809E61B145B55003E98A5 /* LaunchScreen.xib in Resources */,
 				E66F8DE417EEF73600354D80 /* btn_player_play@2x.png in Resources */,
+				55E809EB1B145BC2003E98A5 /* IJKDemoInputURLViewController.xib in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -331,10 +372,15 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				55E809F61B1480BC003E98A5 /* IJKDemoHistory.m in Sources */,
 				E6903F0C17EAF70200CFD954 /* main.m in Sources */,
+				55E809E21B143C47003E98A5 /* IJKDemoMainViewController.m in Sources */,
 				E6903F1017EAF70200CFD954 /* IJKAppDelegate.m in Sources */,
 				E6A9B56417EDA72C00A1A500 /* IJKMoviePlayerViewController.m in Sources */,
+				55E809F11B146C80003E98A5 /* Barcode.m in Sources */,
 				E66F8DCB17EEDD8B00354D80 /* IJKMediaControl.m in Sources */,
+				55E809EA1B145BC2003E98A5 /* IJKDemoInputURLViewController.m in Sources */,
+				55E809EE1B146C1E003E98A5 /* IJKQRCodeScanViewController.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

ios/IJKMediaDemo/IJKMediaDemo/Barcode.h

+//
+//  Barcode.h
+//  featurebuild
+//
+//  Created by Jake Widmer on 10/5/13.
+//  Copyright (c) 2013 Jake Widmer. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <AVFoundation/AVFoundation.h>
+
+@interface Barcode : NSObject
+
++ (Barcode * )processMetadataObject:(AVMetadataMachineReadableCodeObject*) code;
+- (NSString *) getBarcodeType;
+- (NSString *) getBarcodeData;
+- (void) printBarcodeData;
+@end

ios/IJKMediaDemo/IJKMediaDemo/Barcode.m

+//
+//  Barcode.m
+//  featurebuild
+//
+//  Created by Jake Widmer on 10/5/13.
+//  Copyright (c) 2013 Jake Widmer. All rights reserved.
+//
+
+#import "Barcode.h"
+
+@interface Barcode() 
+
+@property (nonatomic, strong) AVMetadataMachineReadableCodeObject *metadataObject;
+@property (nonatomic, strong) NSString * barcodeType;
+@property (nonatomic, strong) NSString * barcodeData;
+@property (nonatomic, strong) UIBezierPath *cornersPath;
+@property (nonatomic, strong) UIBezierPath *boundingBoxPath;
+
+@end
+@implementation Barcode
+
++ (Barcode * )processMetadataObject: (AVMetadataMachineReadableCodeObject*)code
+{
+    // 1 create the obj
+    Barcode * barcode=[[Barcode alloc]init];
+    // 2 store code type and string
+    barcode.barcodeType = [NSString stringWithString:code.type];
+    barcode.barcodeData = [NSString stringWithString:code.stringValue];
+    barcode.metadataObject = code;
+    // 3 & 4 Create the path joining code's corners
+    CGMutablePathRef cornersPath = CGPathCreateMutable();
+    // 5 Make point
+    CGPoint point;
+    CGPointMakeWithDictionaryRepresentation(
+                                            (CFDictionaryRef)code.corners[0], &point);
+    // 6 Make path
+    CGPathMoveToPoint(cornersPath, nil, point.x, point.y);
+    // 7
+    for (int i = 1; i < code.corners.count; i++) {
+        CGPointMakeWithDictionaryRepresentation(
+                                                (CFDictionaryRef)code.corners[i], &point);
+        CGPathAddLineToPoint(cornersPath, nil,
+                             point.x, point.y);
+    }
+    // 8 Finish box
+    CGPathCloseSubpath(cornersPath);
+    // 9 Set path
+    barcode.cornersPath =
+    [UIBezierPath bezierPathWithCGPath:cornersPath];
+    CGPathRelease(cornersPath);
+    // Create the path for the code's bounding box
+    // 10
+    barcode.boundingBoxPath =
+    [UIBezierPath bezierPathWithRect:code.bounds];
+    // 11 return
+    return barcode;
+    
+}
+- (NSString *) getBarcodeType{
+    return self.barcodeType;
+}
+- (NSString *) getBarcodeData{
+    return self.barcodeData;
+}
+- (void) printBarcodeData{
+    NSLog(@"Barcode of type: %@ and data: %@",self.metadataObject.type, self.barcodeData);
+}
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKAppDelegate.h

@@ -8,11 +8,9 @@
 
 #import <UIKit/UIKit.h>
 
-@class IJKVideoViewController;
-
 @interface IJKAppDelegate : UIResponder <UIApplicationDelegate>
 
 @property (strong, nonatomic) UIWindow *window;
-@property (strong, nonatomic) IJKVideoViewController *viewController;
+@property (strong, nonatomic) UIViewController *viewController;
 
 @end

ios/IJKMediaDemo/IJKMediaDemo/IJKAppDelegate.m

@@ -7,18 +7,21 @@
 //
 
 #import "IJKAppDelegate.h"
-#import "IJKMoviePlayerViewController.h"
+#import "IJKDemoMainViewController.h"
 
 @implementation IJKAppDelegate
 
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
-
-    self.viewController = [[IJKVideoViewController alloc] initView];
+    
+    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:[[IJKDemoMainViewController alloc] init]];
+    
+    self.viewController = navigationController;
     self.window.rootViewController = self.viewController;
 
     [self.window makeKeyAndVisible];
+    
     return YES;
 }
 

ios/IJKMediaDemo/IJKMediaDemo/IJKCommon.h

@@ -10,3 +10,4 @@
 
 #define IOS_OLDER_THAN_6 ( [ [ [ UIDevice currentDevice ] systemVersion ] floatValue ] < 6.0 )
 #define IOS_NEWER_OR_EQUAL_TO_6 ( [ [ [ UIDevice currentDevice ] systemVersion ] floatValue ] >= 6.0 )
+#define IOS_NEWER_OR_EQUAL_TO_7 ( [ [ [ UIDevice currentDevice ] systemVersion ] floatValue ] >= 7.0 )

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoHistory.h

+//
+//  IJKDemoHistory.h
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface IJKDemoHistoryItem : NSObject <NSCoding>
+
+@property(nonatomic,strong) NSString *title;
+@property(nonatomic,strong) NSURL *url;
+
+@end
+
+@interface IJKDemoHistory : NSObject
+
++ (instancetype)instance;
+
+@property(nonatomic,strong,readonly) NSArray *list;
+
+- (void)removeAtIndex:(NSUInteger)index;
+- (void)add:(IJKDemoHistoryItem *)item;
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoHistory.m

+//
+//  IJKDemoHistory.m
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import "IJKDemoHistory.h"
+
+@implementation IJKDemoHistoryItem
+
+- (void)encodeWithCoder:(NSCoder *)aCoder {
+    [aCoder encodeObject:self.url forKey:@"url"];
+    [aCoder encodeObject:self.title forKey:@"title"];
+}
+
+- (instancetype)initWithCoder:(NSCoder *)coder {
+    self = [super init];
+    if (self) {
+        self.title = [coder decodeObjectForKey:@"title"];
+        self.url = [coder decodeObjectForKey:@"url"];
+    }
+    return self;
+}
+
+@end
+
+@interface IJKDemoHistory ()
+
+@end
+
+@implementation IJKDemoHistory {
+    NSMutableArray *_list;
+}
+
++ (instancetype)instance {
+    static IJKDemoHistory *s_obj = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        s_obj = [[IJKDemoHistory alloc] init];
+    });
+    
+    return s_obj;
+}
+
+- (instancetype)init {
+    self = [super init];
+    if (self) {
+        _list = [NSKeyedUnarchiver unarchiveObjectWithFile:[self dbfilePath]];
+        if (nil == _list)
+            _list = [NSMutableArray array];
+    }
+    return self;
+}
+
+- (NSString *)dbfilePath {
+    NSString *libraryPath = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSAllDomainsMask, YES) firstObject];
+    libraryPath = [libraryPath stringByAppendingPathComponent:@"ijkhistory.plist"];
+    
+    return libraryPath;
+}
+
+- (NSArray *)list {
+    return _list;
+}
+
+- (void)removeAtIndex:(NSUInteger)index {
+    [_list removeObjectAtIndex:index];
+    
+    [NSKeyedArchiver archiveRootObject:_list toFile:[self dbfilePath]];
+}
+
+- (void)add:(IJKDemoHistoryItem *)item {
+    __block NSUInteger findIdx = NSNotFound;
+    
+    [_list enumerateObjectsUsingBlock:^(IJKDemoHistoryItem *enumItem, NSUInteger idx, BOOL *stop) {
+        if ([enumItem.url isEqual:item.url]) {
+            findIdx = idx;
+            *stop = YES;
+        }
+    }];
+    
+    if (NSNotFound != findIdx) {
+        [_list removeObjectAtIndex:findIdx];
+    }
+    
+    [_list insertObject:item atIndex:0];
+    
+    [NSKeyedArchiver archiveRootObject:_list toFile:[self dbfilePath]];
+}
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoInputURLViewController.h

+//
+//  IJKDemoInputURLViewController.h
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface IJKDemoInputURLViewController : UIViewController
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoInputURLViewController.m

+//
+//  IJKDemoInputURLViewController.m
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import "IJKDemoInputURLViewController.h"
+#import "IJKMoviePlayerViewController.h"
+
+@interface IJKDemoInputURLViewController () <UITextViewDelegate>
+
+@property(nonatomic,strong) IBOutlet UITextView *textView;
+
+@end
+
+@implementation IJKDemoInputURLViewController
+
+- (instancetype)init {
+    self = [super init];
+    if (self) {
+        self.title = @"Input URL";
+        
+        [self.navigationItem setRightBarButtonItem:[[UIBarButtonItem alloc] initWithTitle:@"Play" style:UIBarButtonItemStyleDone target:self action:@selector(onClickPlayButton)]];
+    }
+    return self;
+}
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+}
+
+- (void)onClickPlayButton {
+    NSURL *url = [NSURL URLWithString:self.textView.text];
+    NSString *scheme = [[url scheme] lowercaseString];
+    
+    if ([scheme isEqualToString:@"http"] || [scheme isEqualToString:@"https"]) {
+        [IJKVideoViewController presentFromViewController:self withTitle:[NSString stringWithFormat:@"URL: %@", url] URL:url completion:^{
+            [self.navigationController popViewControllerAnimated:NO];
+        }];
+    }
+}
+
+- (void)textViewDidEndEditing:(UITextView *)textView {
+    [self onClickPlayButton];
+}
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoInputURLViewController.xib

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7531" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7520"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="IJKDemoInputURLViewController">
+            <connections>
+                <outlet property="textView" destination="umQ-0P-p2z" id="uhq-2S-7Pb"/>
+                <outlet property="view" destination="i5M-Pr-FkT" id="sfx-zR-JGt"/>
+            </connections>
+        </placeholder>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view clearsContextBeforeDrawing="NO" contentMode="scaleToFill" id="i5M-Pr-FkT">
+            <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <subviews>
+                <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" showsHorizontalScrollIndicator="NO" translatesAutoresizingMaskIntoConstraints="NO" id="umQ-0P-p2z">
+                    <rect key="frame" x="8" y="8" width="584" height="584"/>
+                    <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                    <fontDescription key="fontDescription" type="system" pointSize="18"/>
+                    <textInputTraits key="textInputTraits" autocorrectionType="no" spellCheckingType="no" keyboardType="URL" returnKeyType="go" enablesReturnKeyAutomatically="YES"/>
+                    <connections>
+                        <outlet property="delegate" destination="-1" id="qOq-wA-HFo"/>
+                    </connections>
+                </textView>
+            </subviews>
+            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <constraints>
+                <constraint firstItem="umQ-0P-p2z" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" constant="8" id="2zf-bJ-LK8"/>
+                <constraint firstAttribute="bottom" secondItem="umQ-0P-p2z" secondAttribute="bottom" constant="8" id="ENy-rQ-9YF"/>
+                <constraint firstAttribute="trailing" secondItem="umQ-0P-p2z" secondAttribute="trailing" constant="8" id="N7V-Kf-ayr"/>
+                <constraint firstAttribute="bottom" secondItem="umQ-0P-p2z" secondAttribute="bottom" id="UXz-GP-DN9"/>
+                <constraint firstAttribute="trailing" secondItem="umQ-0P-p2z" secondAttribute="trailing" id="YgQ-xw-l1l"/>
+                <constraint firstItem="umQ-0P-p2z" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" constant="8" id="gAV-yS-4Tt"/>
+                <constraint firstItem="umQ-0P-p2z" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" id="vah-gr-VK9"/>
+                <constraint firstItem="umQ-0P-p2z" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" id="wZS-sX-ly5"/>
+            </constraints>
+            <variation key="default">
+                <mask key="constraints">
+                    <exclude reference="UXz-GP-DN9"/>
+                    <exclude reference="YgQ-xw-l1l"/>
+                    <exclude reference="vah-gr-VK9"/>
+                    <exclude reference="wZS-sX-ly5"/>
+                </mask>
+            </variation>
+        </view>
+    </objects>
+</document>

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoMainViewController.h

+//
+//  IJKDemoMainViewController.h
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface IJKDemoMainViewController : UIViewController
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoMainViewController.m

+//
+//  IJKDemoMainViewController.m
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import "IJKDemoMainViewController.h"
+#import "IJKDemoInputURLViewController.h"
+#import "IJKQRCodeScanViewController.h"
+#import "IJKCommon.h"
+#import "IJKDemoHistory.h"
+#import "IJKMoviePlayerViewController.h"
+
+@interface IJKDemoMainViewController () <UITableViewDataSource, UITableViewDelegate>
+
+@property(nonatomic,strong) IBOutlet UITableView *tableView;
+@property(nonatomic,strong) NSArray *tableViewCellTitles;
+@property(nonatomic,strong) NSArray *historyList;
+
+@end
+
+@implementation IJKDemoMainViewController
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+    
+    self.title = @"Main";
+    
+    self.tableViewCellTitles = @[
+                                 @"Local Folder",
+                                 @"Input URL",
+                                 @"Scan QRCode",
+                                 ];
+}
+
+- (void)viewWillAppear:(BOOL)animated {
+    [super viewWillAppear:animated];
+    
+    self.historyList = [[IJKDemoHistory instance] list];
+
+    [self.tableView reloadData];
+}
+
+- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
+    return 2;
+}
+
+- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
+    switch (section) {
+        case 0:
+            return @"Open from";
+            
+        case 1:
+            return @"History";
+            
+        default:
+            return nil;
+    }
+}
+
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
+    switch (section) {
+        case 0:
+            if (IOS_NEWER_OR_EQUAL_TO_7) {
+                return self.tableViewCellTitles.count;
+            } else {
+                return self.tableViewCellTitles.count - 1;
+            }
+            
+        case 1:
+            return self.historyList.count;
+            
+        default:
+            return 0;
+    }
+}
+
+- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
+    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"abc"];
+    if (nil == cell) {
+        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"abc"];
+    }
+    
+    switch (indexPath.section) {
+        case 0:
+            cell.textLabel.text = self.tableViewCellTitles[indexPath.row];
+            break;
+            
+        case 1:
+            cell.textLabel.text = [self.historyList[indexPath.row] title];
+            break;
+            
+        default:
+            break;
+    }
+    
+    return cell;
+}
+
+- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
+    [tableView deselectRowAtIndexPath:indexPath animated:YES];
+    
+    switch (indexPath.section) {
+        case 0: {
+            switch (indexPath.row) {
+                case 0:
+                    [[[UIAlertView alloc] initWithTitle:nil message:@"TODO" delegate:nil cancelButtonTitle:@"Cancel" otherButtonTitles:nil] show];
+                    break;
+                    
+                case 1:
+                    [self.navigationController pushViewController:[[IJKDemoInputURLViewController alloc] init] animated:YES];
+                    break;
+                    
+                case 2:
+                    [self.navigationController pushViewController:[[IJKQRCodeScanViewController alloc] init] animated:YES];
+                    break;
+                    
+                default:
+                    break;
+            }
+        } break;
+            
+        case 1: {
+            IJKDemoHistoryItem *historyItem = self.historyList[indexPath.row];
+            
+            [IJKVideoViewController presentFromViewController:self withTitle:historyItem.title URL:historyItem.url completion:^{
+                [self.navigationController popViewControllerAnimated:NO];
+            }];
+        } break;
+            
+        default:
+            break;
+    }
+}
+
+- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
+    return (indexPath.section == 1);
+}
+
+- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
+    if (indexPath.section == 1) {
+        return UITableViewCellEditingStyleDelete;
+    }
+    
+    return UITableViewCellEditingStyleNone;
+}
+
+- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
+    if (indexPath.section == 1 && editingStyle == UITableViewCellEditingStyleDelete) {
+        [[IJKDemoHistory instance] removeAtIndex:indexPath.row];
+        self.historyList = [[IJKDemoHistory instance] list];
+        
+        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
+    }
+}
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKDemoMainViewController.xib

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7531" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7520"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="IJKDemoMainViewController">
+            <connections>
+                <outlet property="tableView" destination="hFv-Sg-rxl" id="OuB-AJ-cvM"/>
+                <outlet property="view" destination="iN0-l3-epB" id="d8B-6e-hY8"/>
+            </connections>
+        </placeholder>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="iN0-l3-epB">
+            <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <subviews>
+                <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" style="plain" separatorStyle="default" rowHeight="44" sectionHeaderHeight="22" sectionFooterHeight="22" translatesAutoresizingMaskIntoConstraints="NO" id="hFv-Sg-rxl">
+                    <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                    <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                    <connections>
+                        <outlet property="dataSource" destination="-1" id="Sct-ml-94e"/>
+                        <outlet property="delegate" destination="-1" id="6Si-jf-dml"/>
+                    </connections>
+                </tableView>
+            </subviews>
+            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <constraints>
+                <constraint firstItem="hFv-Sg-rxl" firstAttribute="top" secondItem="iN0-l3-epB" secondAttribute="top" id="44f-8U-Nl9"/>
+                <constraint firstAttribute="bottom" secondItem="hFv-Sg-rxl" secondAttribute="bottom" id="JWM-jK-2fA"/>
+                <constraint firstItem="hFv-Sg-rxl" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" id="MYB-hY-tK5"/>
+                <constraint firstAttribute="trailing" secondItem="hFv-Sg-rxl" secondAttribute="trailing" id="s3E-4P-8xx"/>
+            </constraints>
+        </view>
+    </objects>
+</document>

ios/IJKMediaDemo/IJKMediaDemo/IJKMediaDemo-Info.plist

@@ -24,6 +24,10 @@
 	<string>102</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIFileSharingEnabled</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
 	<key>UIRequiredDeviceCapabilities</key>
 	<array>
 		<string>armv7</string>

ios/IJKMediaDemo/IJKMediaDemo/IJKMoviePlayerViewController.h

@@ -12,9 +12,12 @@
 
 @interface IJKVideoViewController : UIViewController
 
+@property(atomic,strong) NSURL *url;
 @property(atomic, retain) id<IJKMediaPlayback> player;
 
-- (id)initView;
+- (id)initWithURL:(NSURL *)url;
+
++ (void)presentFromViewController:(UIViewController *)viewController withTitle:(NSString *)title URL:(NSURL *)url completion:(void(^)())completion;
 
 - (IBAction)onClickMediaControl:(id)sender;
 - (IBAction)onClickOverlay:(id)sender;

ios/IJKMediaDemo/IJKMediaDemo/IJKMoviePlayerViewController.m

@@ -10,16 +10,30 @@
 #import "IJKMediaControl.h"
 #import "IJKCommon.h"
 #import "IJKMediaPlayer/IJKMediaPlayer.h"
+#import "IJKDemoHistory.h"
 
 @implementation IJKVideoViewController
 
-- (id)initView
+- (void)dealloc
 {
-    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
-        return [self initWithNibName:@"IJKMoviePlayerViewController" bundle:nil];
-    } else {
-        return [self initWithNibName:@"IJKMoviePlayerViewController" bundle:nil];
+}
+
++ (void)presentFromViewController:(UIViewController *)viewController withTitle:(NSString *)title URL:(NSURL *)url completion:(void (^)())completion {
+    IJKDemoHistoryItem *historyItem = [[IJKDemoHistoryItem alloc] init];
+    
+    historyItem.title = title;
+    historyItem.url = url;
+    [[IJKDemoHistory instance] add:historyItem];
+    
+    [viewController presentViewController:[[IJKVideoViewController alloc] initWithURL:url] animated:YES completion:completion];
+}
+
+- (instancetype)initWithURL:(NSURL *)url {
+    self = [self initWithNibName:@"IJKMoviePlayerViewController" bundle:nil];
+    if (self) {
+        self.url = url;
     }
+    return self;
 }
 
 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
@@ -36,13 +50,11 @@
     [super viewDidLoad];
     // Do any additional setup after loading the view from its nib.
 
-    [[UIApplication sharedApplication] setStatusBarHidden:YES];
-    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:NO];
-
-    NSURL *theMovieURL = [NSURL URLWithString:@"http://vhotwsh.video.qq.com/flv/32/146/r0015d10iwu.p203.1.mp4?vkey=68023055CEC9CC9E1D988B0E71E4B58C38B0374F1CB9805F4A1901D8E87B42137DD9680CF88D3685C3A59F030BAE55AA2E7238551DCB6BFF&fmt=sd&type=mp4"];
+//    [[UIApplication sharedApplication] setStatusBarHidden:YES];
+//    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:NO];
 
     [IJKFFMoviePlayerController setLogReport:YES];
-    self.player = [[IJKFFMoviePlayerController alloc] initWithContentURL:theMovieURL withOptions:nil];
+    self.player = [[IJKFFMoviePlayerController alloc] initWithContentURL:self.url withOptions:nil];
     self.player.view.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;
     self.player.view.frame = self.view.bounds;
 
@@ -51,15 +63,20 @@
     [self.view addSubview:self.mediaControl];
 
     self.mediaControl.delegatePlayer = self.player;
+}
 
+- (void)viewWillAppear:(BOOL)animated {
+    [super viewWillAppear:animated];
+    
     [self installMovieNotificationObservers];
 
     [self.player prepareToPlay];
     [self.player play];
 }
 
-- (void)dealloc
-{
+- (void)viewDidDisappear:(BOOL)animated {
+    [super viewDidDisappear:animated];
+    
     [self.player shutdown];
     [self removeMovieNotificationObservers];
 }
@@ -97,7 +114,9 @@
 
 - (IBAction)onClickBack:(id)sender
 {
-    exit(0);
+    if (self.presentingViewController) {
+        [self.presentingViewController dismissViewControllerAnimated:YES completion:nil];
+    }
 }
 
 - (IBAction)onClickPlay:(id)sender

ios/IJKMediaDemo/IJKMediaDemo/IJKMoviePlayerViewController.xib

 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="5053" systemVersion="12F45" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7531" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none">
     <dependencies>
-        <deployment defaultVersion="1536" identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="3733"/>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7520"/>
     </dependencies>
     <objects>
         <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="IJKVideoViewController">
@@ -15,7 +15,8 @@
         <view contentMode="scaleToFill" id="1">
             <rect key="frame" x="0.0" y="0.0" width="480" height="320"/>
             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-            <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
+            <color key="backgroundColor" cocoaTouchSystemColor="scrollViewTexturedBackgroundColor"/>
+            <nil key="simulatedStatusBarMetrics"/>
             <simulatedOrientationMetrics key="simulatedOrientationMetrics" orientation="landscapeRight"/>
             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
         </view>
@@ -121,6 +122,7 @@
                 </view>
             </subviews>
             <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
+            <nil key="simulatedStatusBarMetrics"/>
             <simulatedOrientationMetrics key="simulatedOrientationMetrics" orientation="landscapeRight"/>
             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
             <connections>
@@ -143,4 +145,9 @@
         <image name="player_bottom_control_bg.png" width="400" height="100"/>
         <image name="player_top_control_bg.png" width="1" height="44"/>
     </resources>
+    <simulatedMetricsContainer key="defaultSimulatedMetrics">
+        <simulatedStatusBarMetrics key="statusBar"/>
+        <simulatedOrientationMetrics key="orientation"/>
+        <simulatedScreenMetrics key="destination" type="retina4"/>
+    </simulatedMetricsContainer>
 </document>

ios/IJKMediaDemo/IJKMediaDemo/IJKQRCodeScanViewController.h

+//
+//  IJKQRCodeScanViewController.h
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface IJKQRCodeScanViewController : UIViewController
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKQRCodeScanViewController.m

+//
+//  IJKQRCodeScanViewController.m
+//  IJKMediaDemo
+//
+//  Created by Gdier on 5/26/15.
+//  Copyright (c) 2015 bilibili. All rights reserved.
+//
+
+#import "IJKQRCodeScanViewController.h"
+#import "IJKMoviePlayerViewController.h"
+#import "Barcode.h"
+#import <AVFoundation/AVFoundation.h>
+
+@interface IJKQRCodeScanViewController () <AVCaptureMetadataOutputObjectsDelegate>
+
+@property (weak, nonatomic) IBOutlet UIView *previewView;
+@property (strong, nonatomic) NSMutableArray * allowedBarcodeTypes;
+
+//@property (strong, nonatomic) SettingsViewController * settingsVC;
+
+@end
+
+@implementation IJKQRCodeScanViewController {
+
+    AVCaptureSession *_captureSession;
+    AVCaptureDevice *_videoDevice;
+    AVCaptureDeviceInput *_videoInput;
+    AVCaptureVideoPreviewLayer *_previewLayer;
+    BOOL _running;
+    AVCaptureMetadataOutput *_metadataOutput;
+}
+
+- (instancetype)init {
+    self = [super init];
+    if (self) {
+        self.title = @"Scan QRCode";
+    }
+    return self;
+}
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+    
+    [self setupCaptureSession];
+    _previewLayer.frame = _previewView.bounds;
+    [_previewView.layer addSublayer:_previewLayer];
+    
+    // listen for going into the background and stop the session
+    
+    // set default allowed barcode types, remove types via setings menu if you don't want them to be able to be scanned
+    self.allowedBarcodeTypes = [NSMutableArray new];
+    [self.allowedBarcodeTypes addObject:@"org.iso.QRCode"];
+}
+
+- (void)viewWillAppear:(BOOL)animated {
+    [super viewWillAppear:animated];
+
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(applicationWillEnterForeground:)
+                                                 name:UIApplicationWillEnterForegroundNotification
+                                               object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(applicationDidEnterBackground:)
+                                                 name:UIApplicationDidEnterBackgroundNotification
+                                               object:nil];
+
+    _previewLayer.frame = _previewView.bounds;
+    
+    [self setupCaptureOrientation];
+}
+
+- (void)viewDidAppear:(BOOL)animated {
+    [super viewDidAppear:animated];
+    [self startRunning];
+}
+
+
+- (void)viewWillDisappear:(BOOL)animated {
+    [super viewWillDisappear:animated];
+    [self stopRunning];
+    
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+#pragma mark - AV capture methods
+
+- (void)setupCaptureSession {
+
+    if (_captureSession) {
+        return;
+    }
+
+    _videoDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
+    if (!_videoDevice) {
+        return;
+    }
+
+    _captureSession = [[AVCaptureSession alloc] init];
+    _videoInput = [[AVCaptureDeviceInput alloc] initWithDevice:_videoDevice error:nil];
+
+    if ([_captureSession canAddInput:_videoInput]) {
+        [_captureSession addInput:_videoInput];
+    }
+    _previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:_captureSession];
+    _previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
+    
+    // capture and process the metadata
+    _metadataOutput = [[AVCaptureMetadataOutput alloc] init];
+
+    [_metadataOutput setMetadataObjectsDelegate:self
+                                          queue:dispatch_get_main_queue()];
+    
+    if ([_captureSession canAddOutput:_metadataOutput]) {
+        [_captureSession addOutput:_metadataOutput];
+    }
+}
+
+- (void)setupCaptureOrientation {
+    if([_previewLayer.connection isVideoOrientationSupported]) {
+        AVCaptureVideoOrientation orientation;
+        
+        switch ([[UIApplication sharedApplication] statusBarOrientation]) {
+            case UIInterfaceOrientationLandscapeLeft:
+                orientation = AVCaptureVideoOrientationLandscapeLeft;
+                break;
+                
+            case UIInterfaceOrientationLandscapeRight:
+                orientation = AVCaptureVideoOrientationLandscapeRight;
+                break;
+                
+            default:
+                orientation = AVCaptureVideoOrientationLandscapeLeft;
+                break;
+        }
+        
+        [_previewLayer.connection setVideoOrientation:orientation];
+    }
+}
+
+- (void)startRunning {
+    if (_running) return;
+    [_captureSession startRunning];
+    _metadataOutput.metadataObjectTypes = @[AVMetadataObjectTypeQRCode];//_metadataOutput.availableMetadataObjectTypes;
+
+    _running = YES;
+}
+
+- (void)stopRunning {
+    if (!_running) return;
+    [_captureSession stopRunning];
+    _running = NO;
+}
+
+- (void)applicationWillEnterForeground:(NSNotification*)note {
+    [self startRunning];
+}
+- (void)applicationDidEnterBackground:(NSNotification*)note {
+    [self stopRunning];
+}
+
+#pragma mark - Delegate functions
+
+- (void)captureOutput:(AVCaptureOutput *)captureOutput
+didOutputMetadataObjects:(NSArray *)metadataObjects
+       fromConnection:(AVCaptureConnection *)connection {
+    
+    [metadataObjects enumerateObjectsUsingBlock:^(AVMetadataObject *obj, NSUInteger idx, BOOL *stop) {
+         if ([obj isKindOfClass:[AVMetadataMachineReadableCodeObject class]]) {
+
+             AVMetadataMachineReadableCodeObject *code = (AVMetadataMachineReadableCodeObject *) [_previewLayer transformedMetadataObjectForMetadataObject:obj];
+
+             Barcode * barcode = [Barcode processMetadataObject:code];
+             
+             for(NSString * str in self.allowedBarcodeTypes) {
+                 if([barcode.getBarcodeType isEqualToString:str]) {
+                     [self validBarcodeFound:barcode];
+                     return;
+                 }
+             }
+         }
+     }];
+}
+
+- (void) validBarcodeFound:(Barcode *)barcode {
+    [self stopRunning];
+    [self showBarcodeAlert:barcode];
+}
+
+- (void) showBarcodeAlert:(Barcode *)barcode {
+    UIAlertView *message = [[UIAlertView alloc] initWithTitle:nil
+                                                      message:[barcode getBarcodeData]
+                                                     delegate:self
+                                            cancelButtonTitle:@"Scan Again"
+                                            otherButtonTitles:@"Play", nil];
+    
+    [message show];
+}
+
+- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
+    if(buttonIndex == alertView.cancelButtonIndex) {
+        [self startRunning];
+    } else {
+        NSURL *url = [NSURL URLWithString:alertView.message];
+        
+        [IJKVideoViewController presentFromViewController:self withTitle:[NSString stringWithFormat:@"URL: %@", url] URL:url completion:^{
+            [self.navigationController popViewControllerAnimated:NO];
+        }];
+    }
+}
+
+@end

ios/IJKMediaDemo/IJKMediaDemo/IJKQRCodeScanViewController.xib

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7531" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7520"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="IJKQRCodeScanViewController">
+            <connections>
+                <outlet property="previewView" destination="iN0-l3-epB" id="hed-3u-VkP"/>
+                <outlet property="view" destination="iN0-l3-epB" id="jd3-Hf-Ktc"/>
+            </connections>
+        </placeholder>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="iN0-l3-epB">
+            <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <color key="backgroundColor" white="0.0" alpha="1" colorSpace="calibratedWhite"/>
+        </view>
+    </objects>
+</document>

ios/IJKMediaDemo/IJKMediaDemo/LaunchScreen.xib

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7531" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7520"/>
+        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="iN0-l3-epB">
+            <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <subviews>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2015 bilibili. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                    <rect key="frame" x="20" y="439" width="441" height="21"/>
+                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <nil key="highlightedColor"/>
+                    <variation key="widthClass=compact">
+                        <fontDescription key="fontDescription" type="system" pointSize="11"/>
+                    </variation>
+                </label>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="IJKMediaDemo" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
+                    <rect key="frame" x="20" y="140" width="441" height="43"/>
+                    <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
+                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <nil key="highlightedColor"/>
+                </label>
+            </subviews>
+            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <constraints>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="Kid-kn-2rF"/>
+                <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
+                <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
+                <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
+                <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
+            </constraints>
+            <nil key="simulatedStatusBarMetrics"/>
+            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
+            <point key="canvasLocation" x="404" y="445"/>
+        </view>
+    </objects>
+</document>