# Include headers in UNO for iOS

**URL:** <https://forums.fusetools.com/t/include-headers-in-uno-for-ios/5641>\
**Category:** How-to Discussions\
**Created:** [November 9, 2016, 2:46pm UTC](https://forums.fusetools.com/t/include-headers-in-uno-for-ios/5641 "2016-11-09T14:46:06Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forums.fusetools.com/u/Donald)\
**Post date:** [November 9, 2016, 2:46pm UTC](https://forums.fusetools.com/t/include-headers-in-uno-for-ios/5641/1 "2016-11-09T14:46:06Z")

</div>

Hi,

i need help with UNO file and build iOS version. On build phase i have these messages:  
(fuse version 0.29.0)

```auto
Building iOS app
/opt/fuse/xy/build/iOS/Debug/src/_root.QReaderImpl.mm:5:10: error: 'QRCodeReader.h' file not found with <angled> include; use "quotes" instead
/opt/fuse/xy/build/iOS/Debug/src/_root.QReaderImpl.mm:6:10: error: 'QRCodeReaderViewController.h' file not found with <angled> include; use "quotes" instead
/opt/fuse/xy/build/iOS/Debug/src/_root.QReaderImpl.mm:7:10: error: 'QReaderTask.h' file not found with <angled> include; use "quotes" instead
**BUILD FAILED**

The following build commands failed:
	CompileC build/xy.build/Release-iphoneos/xy.build/Objects-normal/armv7/_root.QReaderImpl.o src/_root.QReaderImpl.mm normal armv7 objective-c++ com.apple.compilers.llvm.clang.1_0.compiler
(1 failure)
(2.4s)

Build completed in 10.43 seconds

```

Uno file:

```auto
using Uno;
using Uno.Collections;
using Fuse.Scripting;
using Fuse.Reactive;
using Fuse;
using Uno.Compiler.ExportTargetInterop;
using Uno.Threading;

public class QReader : NativeModule {
	public QReader () {
		// Add Load function to load image as a texture
		AddMember(new NativePromise<string, string>("scan", (FutureFactory<string>)Scan,null));
	}

	static Future<string> Scan(object[] args)
	{
		//var path = Uno.IO.Path.Combine(Uno.IO.Directory.GetUserDirectory(Uno.IO.UserDirectory.Data), "temp.jpg");
			return QReaderImpl.Scan();
	}
}

[ForeignInclude(Language.Java,
                "android.app.Activity",
                "android.content.Intent",
                "android.net.Uri",
                "android.os.Bundle",
				"com.google.android.gms.common.api.CommonStatusCodes",
				"com.fuse.qreader.BarcodeCaptureActivity",
				"com.google.android.gms.vision.barcode.Barcode")]
[Require("Gradle.Dependency.Compile","com.android.support:support-v4:23.0.1")]
[Require("Gradle.Dependency.Compile","com.google.android.gms:play-services-vision:9.2.1")]
[Require("Gradle.Dependency.Compile","com.android.support:design:23.0.1")]
[ForeignInclude(Language.ObjC, "QReaderTask.h", "QRCodeReaderViewController.h", "QRCodeReader.h")]
public class QReaderImpl
{
	static int RC_BARCODE_CAPTURE = 9001;

	static bool InProgress {
		get; set;
	}

	static Promise<string> FutureResult {
		get; set;
	}

	static extern(Android) Java.Object _intentListener;

	public static Future<string> Scan() {
		if (InProgress) {
			return null;
		}
		InProgress = true;
		if defined(Android) {
			 if (_intentListener == null)
				_intentListener = Init();
		}
		ScannerImpl();
		FutureResult = new Promise<string>();
		return FutureResult;
	}

	[Foreign(Language.Java)]
	static extern(Android) Java.Object Init()
	@{
	    com.fuse.Activity.ResultListener l = new com.fuse.Activity.ResultListener() {
	        @Override public boolean onResult(int requestCode, int resultCode, android.content.Intent data) {
	            return @{OnRecieved(int,int,Java.Object):Call(requestCode, resultCode, data)};
	        }
	    };
	    com.fuse.Activity.subscribeToResults(l);
	    return l;
	@}

	[Foreign(Language.Java)]
	static extern(Android) bool OnRecieved(int requestCode, int resultCode, Java.Object data)
	@{

						if (requestCode == @{RC_BARCODE_CAPTURE}&&resultCode == CommonStatusCodes.SUCCESS && data != null) {

										Barcode barcode = ((Intent)data).getParcelableExtra(BarcodeCaptureActivity.BarcodeObject);
										if(barcode.displayValue != ""){
													@{Picked(string):Call(barcode.displayValue)};
										}else{
														@{Cancelled():Call()};
										}
						}
						else {
										@{Cancelled():Call()};
						}

	    return (requestCode == @{RC_BARCODE_CAPTURE});
	@}

	static extern(!Mobile) void ScannerImpl () {
		throw new Fuse.Scripting.Error("Unsupported platform");
	}

	[Require("Gradle.Dependency.Compile","com.android.support:support-v4:23.0.1")]
	[Require("Gradle.Dependency.Compile","com.google.android.gms:play-services-vision:9.2.1")]
	[Require("Gradle.Dependency.Compile","com.android.support:design:23.0.1")]
	[Require("AndroidManifest.ApplicationElement", "<activity android:name=\"com.fuse.qreader.BarcodeCaptureActivity\" android:theme=\"@style/Theme.AppCompat\"></activity>")]
	[Require("AndroidManifest.RootElement", "<uses-feature android:name=\"android.hardware.camera\"/>")]
	[Require("AndroidManifest.RootElement", "<uses-feature android:name=\"android.hardware.camera.autofocus\"/>")]
	[Require("AndroidManifest.RootElement", "<uses-permission android:name=\"android.permission.CAMERA\"/>")]
	[Foreign(Language.Java)]
	static extern(Android) void ScannerImpl ()
	@{
		Activity a = com.fuse.Activity.getRootActivity();
		// Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
		Intent intent = new Intent(a, BarcodeCaptureActivity.class);
		a.startActivityForResult(intent, @{RC_BARCODE_CAPTURE});

	@}

	[Require("Entity","QReaderImpl.Cancelled()")]
	[Require("Entity","QReaderImpl.Picked(string)")]
	[Foreign(Language.ObjC)]
	static extern(iOS) void ScannerImpl ()
	@{
			QReaderTask *task = [[QReaderTask alloc] init];

			static QRCodeReaderViewController *vc = nil;
			static dispatch_once_t onceToken;

			UIViewController *uivc = [UIApplication sharedApplication].keyWindow.rootViewController;
			[task setUivc:uivc];

			dispatch_once(&onceToken, ^{
					QRCodeReader *reader = [QRCodeReader readerWithMetadataObjectTypes:@[AVMetadataObjectTypeQRCode,
                               AVMetadataObjectTypeUPCECode,
                               AVMetadataObjectTypeCode39Code,
                               AVMetadataObjectTypeCode39Mod43Code,
                               AVMetadataObjectTypeEAN13Code,
                               AVMetadataObjectTypeEAN8Code,
                               AVMetadataObjectTypeCode93Code,
                               AVMetadataObjectTypeCode128Code,
                               AVMetadataObjectTypePDF417Code,
                               AVMetadataObjectTypeAztecCode]];
					vc = [QRCodeReaderViewController readerWithCancelButtonTitle:@"Zrušit" codeReader:reader];
					vc.modalPresentationStyle = UIModalPresentationFormSheet;
			});

			vc.delegate = task;

			[uivc
				presentViewController:vc
				animated:YES
				completion:nil];
	@}

	public static void Cancelled () {
		InProgress = false;
		FutureResult.Reject(new Exception("User cancelled the qr scanner"));
	}

	public static void Picked (string result) {
		InProgress = false;
		FutureResult.Resolve(result);
	}

}
 

```

Because documentation for UNO is very wrong, it is hard for me investigate, what is incorrect

thnx

---

<div class="post-metadata">

**Author:** ![Baggers](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/baggers/32/665_2.png) [@Baggers](https://forums.fusetools.com/u/Baggers)\
**Post date:** [November 9, 2016, 3:03pm UTC](https://forums.fusetools.com/t/include-headers-in-uno-for-ios/5641/2 "2016-11-09T15:03:54Z")

</div>

From a chat on Slack we have established that this may be a new issue `on fuse 0.28.0 build works correctly`

part of donald’s unoproj

```auto
"Packages": [
       "Fuse",
       "FuseJS"
 ],
 "Includes": [
   "Pages/*.uno",
   "Pages/*.ux",
   "Components/*.ux",
   "NativeSrc/QReaderTask.h:ObjCHeader:iOS",
   "NativeSrc/QReaderTask.mm:ObjCSource:iOS",
   "NativeSrc/QRCodeReader.h:ObjCHeader:iOS",
   "NativeSrc/QRCodeReader.mm:ObjCSource:iOS",
   "NativeSrc/QRCodeReaderDelegate.h:ObjCHeader:iOS",
   "NativeSrc/QRCodeReaderView.h:ObjCHeader:iOS",
   "NativeSrc/QRCodeReaderView.mm:ObjCSource:iOS",
   "NativeSrc/QRCodeReaderViewController.h:ObjCHeader:iOS",
   "NativeSrc/QRCodeReaderViewController.mm:ObjCSource:iOS", (edited)

```

---

<div class="post-metadata">

**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forums.fusetools.com/u/Donald)\
**Post date:** [November 19, 2016, 10:24am UTC](https://forums.fusetools.com/t/include-headers-in-uno-for-ios/5641/3 "2016-11-19T10:24:59Z")

</div>

Hi, do you have any news about this issue ?  
Or, do you have some temporary workaround for this issue ?  
Because today I do not have way how build iOS version with 0.29.0 version and your team will release already soon version 0.30.0  
thnx

---

<div class="post-metadata">

**Author:** ![Olle\_Fredriksson](https://avatars.discourse-cdn.com/v4/letter/o/e95f7d/32.png) [@Olle\_Fredriksson](https://forums.fusetools.com/u/Olle_Fredriksson)\
**Post date:** [November 21, 2016, 8:54am UTC](https://forums.fusetools.com/t/include-headers-in-uno-for-ios/5641/4 "2016-11-21T08:54:25Z")

</div>

Hey Donald,

Have you verified that your include path is correct? I think the `ForeignInclude`s are relative to the project, so if your project contains `"NativeSrc/QReaderTask.h:ObjCHeader:iOS"` the include should be `[ForeignInclude(Language.ObjC, "NativeSrc/QReaderTask.h")]`.

Hope that helps!