Native extension - compiler issue

Hi,
First, I compile an iOS app with a native extension developped by ADOBE : http://www.adobe.com/devnet/air/native-extensions-for-air/extensions/vibration.html#articl econtentAdobe_numberedheader_3
It's work well
Then, I made myself the iOS library on xcode. It's OK as well
Then, I made the ANE file following the tutorial http://custardbelly.com/blog/2011/09/21/air-native-extension-example-ibattery-for-ios/. It's seem OK
I create my air app with Flash Builder. I load ANE, SWC...everything seem ok
When I compile my Iphone Application with Flex, there is this error :
An erreor appears during the application packaging (my translation):
ld warning: in C:\\Users\\Tony\\AppData\\Local\\Temp\\c6468656-be35-4f05-8d51-0dd54063cefd/libcom.adobe. LEDTorch.a, file is not of required architecture
Undefined symbols:
"_ExtFinalizer", referenced from:
_g_com_adobe_air_fre_fmap in extensionglue.o
"_ExtInitializer", referenced from:
_g_com_adobe_air_fre_fmap in extensionglue.o
ld: symbol(s) not found
Compilation failed while executing : ld64
Someone could help me?
I'm working on this bug for 2 days
Thanks in advance !
Emmanuel

Hi,
Apparently, the issue is the following: (find in the forum of
http://www.liquid-photo.com/2011/10/28/native-extension-for-adobe-air-and-ios-101/#comment -322
Apparently X-Code was trying to build NativeAlert.m as Objective-C++ source
instead of Objective-C source. Silly mistake really. It took starting the
project over again and trauling through the project settings to figure out
what was wrong. Oh well, all sorted now.
But i didn't succeed in setting the project with the corrects parameter.
Could you help me?
Thanks in advance
Regards
E.Fuchs
2012/2/10 Saumitra Bhave <[email protected]>
Re: Native extension - compiler issue created by Saumitra Bhave<http://forums.adobe.com/people/SaumiB>in
Mobile Development - View the full discussion<http://forums.adobe.com/message/4198519#4198519>

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- http://stackoverflow.com/questions/24626380/how-to-include-additional-jar-in-android-nativ e-extension-for-adobe-air-mobile
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Did someone successfully compile with ADT native extensions like com.adobe.Vibration with AIR 3.3 ?
Thank you !
(Since i've moved to 3.3, it doesn't work anymore)

Hi,
I have tried reproducing your issue but I am not able to reproduce it , following is the code which I am using in my app :
package
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import com.adobe.nativeExtensions.Vibration;
import flash.events.*;
import flash.utils.Timer;
import flash.text.TextField;
import flash.text.TextFormat;
import net.hires.debug.Stats;
public class TestVibration extends Sprite
private var subsButton:CustomButton = new CustomButton("Press me!");
private var tt:TextField = new TextField();
private var tf:TextFormat = new TextFormat();
public function TestVibration()
super();
addChild ( new Stats() );
tf.size = 20;
tf.bold = true;
tt.x=0;
tt.y =450;
tt.height = stage.stageHeight;
tt.width = stage.stageWidth;
tt.border = true;
tt.defaultTextFormat = tf;
addChild(tt);
// support autoOrients
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
var myTimer:Timer = new Timer(2000, 1);
myTimer.addEventListener(TimerEvent.TIMER, timerHandler);
myTimer.start();
subsButton.x = 150;
subsButton.y=10;
subsButton.addEventListener(MouseEvent.CLICK,subsButtonHandler);
stage.addChild(subsButton);
public function subsButtonHandler(e:MouseEvent):void{
trace("button pressed");
tt.appendText("\n Button pressed!");
public function timerHandler(e:TimerEvent):void
var vibe:Vibration;
if (Vibration.isSupported)
trace("1");
trace("12");vibe = new Vibration();
trace("13");vibe.vibrate(2000);
trace("14");
trace("15");
I am using the ANE and SWC provided at
http://download.macromedia.com/pub/developer/air/ane/Vibration.zip and I am using the target ipa-ad-hoc on device iphone4 .
Can you please specify if you are doing something else in your app?It would be great if you can send your sample app with the steps to reproduce @ [email protected] ,so that we can reproduce the issue .
Thanks,
Nimisha

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Hi,
Its probably because the number of warnings in your application is very high and its a known issue that packaging fails in Flash Pro/Flash Builder, if the number of warnings is high.
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Native extension on Mac OS X (Air 3)

Hi
I have a blocking issue for native extensions when targetting the MacOS-x86 platform. (in my case Snow Leopard)
I succeded in packaging the ANE file, but I have this error when using it in my test app:
[SWF] tekhnia.simpleAirNativeExtension - 2 871 octets après la décompression
[SWF] simpleAirNativeExtensionTest.swf - 2 119 250 octets après la décompression
Context: [object ExtensionContext] in /Users/vandrito/Documents/Projets/o3sui/.metadata/.plugins/com.adobe.flexbuilder.project. ui/ANEFiles/simpleAirNativeExtensionTest/macosx/simpleAirNativeExtension.ane
ArgumentError: Error #3500: The extension context does not have a method with the name isSupported.
          at flash.external::ExtensionContext/_call()
          at flash.external::ExtensionContext/call()
          at tekhnia.org.simpleAirNativeExtension::simpleAirNativeExtension/isSupported()[/Users/vandr ito/Documents/Projets/o3sui/simpleAirNativeExtension/src/tekhnia/org/simpleAirNativeExtens ion/simpleAirNativeExtension.as:16]
          at simpleAirNativeExtensionTest/init()[/Users/vandrito/Documents/Projets/o3sui/simpleAirNati veExtensionTest/src/simpleAirNativeExtensionTest.mxml:15]
          at simpleAirNativeExtensionTest/___simpleAirNativeExtensionTest_WindowedApplication1_creatio nComplete()[/Users/vandrito/Documents/Projets/o3sui/simpleAirNativeExtensionTest/src/simpl eAirNativeExtensionTest.mxml:5]
          at flash.events::EventDispatcher/dispatchEventFunction()
          at flash.events::EventDispatcher/dispatchEvent()
          at mx.core::UIComponent/dispatchEvent()[E:\dev\4.y\frameworks\projects\framework\src\mx\core \UIComponent.as:13151]
          at mx.core::UIComponent/set initialized()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:1818]
          at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.y\frameworks\projects\framewo rk\src\mx\managers\LayoutManager.as:842]
          at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.y\frameworks\projects \framework\src\mx\managers\LayoutManager.as:1180]
In fact it seems that the initializer is not executed. This is my extension declaration file:
<extension xmlns="http://ns.adobe.com/air/extension/3.1">
   <id>tekhnia.simpleAirNativeExtension</id>
   <versionNumber>1.0.0</versionNumber>
   <name>tekhnia.simpleAirNativeExtension</name>
   <copyright>@2011 OpenTekhnia, Techniware</copyright>
   <platforms>
      <platform name="MacOS-x86">
         <applicationDeployment>
             <nativeLibrary>simpleAirNativeExtension.framework</nativeLibrary>
             <initializer>initNativeExtension</initializer>
             <finalizer>doneNativeExtension</finalizer>
         </applicationDeployment>
       </platform>
    </platforms>
</extension>
That's my *.m file in the xcode framework project:
#import "simpleAirNativeExtension.h"
FREObject isSupported(FREContext ctx,
                void *functionData,
                uint32_t argc,
                FREObject argv[]) {
    FREObject retObj;
    FRENewObjectFromBool(1, &retObj);
    return retObj;
// contextInitializer()
// The context initializer is called when the runtime creates the extension context instance.
void contextInitializer(void* extData, const uint8_t* ctxType, FREContext ctx,
                        uint32_t* numFunctions, const FRENamedFunction** functionsToSet) {
    *numFunctions = 1;
    FRENamedFunction* func = (FRENamedFunction*)malloc(sizeof(FRENamedFunction) * (*numFunctions));
    func[0].name = (const uint8_t*) "isSupported";
    func[0].functionData = NULL;
    func[0].function = &isSupported;
    *functionsToSet = func;
// contextFinalizer()
// The context finalizer is called when the extension's ActionScript code
// calls the ExtensionContext instance's dispose() method.
// If the AIR runtime garbage collector disposes of the ExtensionContext instance, the runtime also calls
// contextFinalizer().
void contextFinalizer(FREContext ctx) {
    // Nothing to clean up.
    return;
// initMulticastSocket()
// The extension initializer is called the first time the ActionScript side of the extension
// calls ExtensionContext.createExtensionContext() for any context.
void initNativeExtension(void** extDataToSet, FREContextInitializer* ctxInitializerToSet,
                         FREContextFinalizer* ctxFinalizerToSet) {
    *ctxInitializerToSet = &contextInitializer;
    *ctxFinalizerToSet = &contextFinalizer;
// done()
// The extension finalizer is called when the runtime unloads the extension. However, it is not always called.
void doneNativeExtension(void* extData) {
    // Nothing to clean up.
    return;
and that's my .h:
// simpleAirNativeExtension.h
// simpleAirNativeExtension
// Created by Victor Andritoiu on 17/10/11.
// Copyright (c) 2011 OpenTekhnia. All rights reserved.
#import <Foundation/Foundation.h>
#include "Adobe Air/FlashRuntimeExtensions.h"
void initNativeExtension(void** extDataToSet, FREContextInitializer* ctxInitializerToSet,
                         FREContextFinalizer* ctxFinalizerToSet);
void doneNativeExtension(void* extData);
FREObject isSupported(FREContext ctx,
                      void *functionData,
                      uint32_t argc,
                      FREObject argv[]);
void contextInitializer(void* extData, const uint8_t* ctxType, FREContext ctx,
                        uint32_t* numFunctions, const FRENamedFunction** functionsToSet);
void contextFinalizer(FREContext ctx);
@interface simpleAirNativeExtension : NSObject
@end
And finally my AS3 code for the lib:
package tekhnia.org.simpleAirNativeExtension
          import flash.external.ExtensionContext;
          public class simpleAirNativeExtension {
/** extension context */
                    protected var context: ExtensionContext;
                    public function simpleAirNativeExtension() {
                              context = ExtensionContext.createExtensionContext("tekhnia.simpleAirNativeExtension", "");
                              trace("Context: " + context + " in " + ExtensionContext.getExtensionDirectory("tekhnia.simpleAirNativeExtension").nativePath);
                    public function isSupported(): Boolean {
                              return context.call("isSupported") as Boolean;
and for the app using it:
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                                                     xmlns:s="library://ns.adobe.com/flex/spark"
                                                     xmlns:mx="library://ns.adobe.com/flex/mx"
                                                     creationComplete="init()">
<fx:Script>
                    <![CDATA[
                              import mx.events.FlexEvent;
                              import tekhnia.org.simpleAirNativeExtension.simpleAirNativeExtension;
                              protected function init(): void {
                                        var sane: simpleAirNativeExtension = new simpleAirNativeExtension();
                                        trace(sane.isSupported());
                    ]]>
</fx:Script>
<fx:Declarations>

</fx:Declarations>
</s:WindowedApplication>
If anybody succeeded in using extensions on MacOS, please first tell me that s possible then, maybe help me on getting the error that I make.
Thanks a lot
Victor

Workaround found:
Need to launch adl as a line command (depends on your directory config, of course):
/Applications/Adobe\ Flash\ Builder\ 4.6/sdks/4.6.0/bin/adl -runtime /Library/Frameworks/ -extdir /Users/vandrito/Desktop/simpleAirNativeExtension/launch/extensions -profile extendedDesktop /Users/vandrito/Documents/Projets/o3sui/simpleAirNativeExtensionTest/bin-debug/simpleAirN ativeExtensionTest-app.xml
Pay attention to the library location: it is the one of the Air 3.1 install. Did not check the same trick with Flash Builder 4.6 Air install.
Then use a fake web debugger to connect to the process (if compiled in debug mode). See here how to do (french):
http://www.flex-tutorial.fr/2010/08/05/air-android-debug-sur-mobile-froyo-emulateur-avec-f lash-builder-4/
Victor

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Dear all,
I have a challenge. I have developed an Xcode library which I would like to make available for people who use Flash, mainly in order to create a nice interface since Flash is WAY better for creating interfaces than Xcode. Therefore I dived into creating an Adobe Native Extension as explained in this quite nice tutorial on the Adobe website. I came across many issues on the way but in the end I succeeded in creating a .ANE file which could be used in Flash. Flash clearly recognizes the names of the classes etc that are defined in the actionscript library, but as soon as it runs the scripts I get an error saying "Could not find the class <classname>". I considered me to be the most likely prolem so I decided to take a step back and build the code that is in the .zip file of the tutorial (so my hands did not touch the code other than compiling it) strangely I get the same errors again.
There are 3 most likely things that could be at the essence of this:
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*- I make a mistake in importing the library into my flash code. I saw other posts on these forums where people have been making such mistakes. Some variations I tried are importing the .ANE directly (which another guy here also tried and reported that this would not work, strange but ok..) then I did it with the SWC and I also made the traditional mistake at first of not linking it externally. But after having solved that as well I am stuck. Maybe there is something else I should be aware of?
- My Flash version and AIR versions are more modern than the ones in which this code was written, could it be that there are depreciation issues in the newer versions?
* An interesting detail though is that I do manage to include the .ANE file of the original build which is also included in the .zip. Therefore I think it is unlikely that I make a mistake in importing the libraries, but nevertheless these things can never be truly ruled out.
If it helps I can share the coding I used but as it is the tutorial code I do not expect that there are true mistakes in this.
Do you have any experience in this? Or could you reproduce my error(or not and thus solving it?) Any help is appreciated!

I'm pretty sure that you are wrong and don't understand what actually happening ;) Native Extensions work well and users develops new one. I done myself extension using xcode 4.0 to 5.0 so everything is with it. Just need to find better tutorial. Last ANE finished 2 weeks ago that change iOS keyboard color. Creation of ANE it's pretty simple job when you know what to do. I don't have any C++ and Objective-C background but this don't restrict me from ANE creation that works well.

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I have certificates for developer and distribution . I signed AIR apps using those certificates, and all work (I publiched 5 games to AppStore, all OK).
But when I try to compile an iOS native extension, I get:
Unable to build a valid certificate chain for the signer extension.
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How did you compile your ane file? I met same issue before.
adt -package -target ane myextension.ane extension.xml -swc mySwc.swc -platform iPhone-ARM library.swf libmylib.a -platformoptions myplatformoptions.xml
lnside myplatformoptions.xml, I linked all the framework and shared libraries, as following
<platform xmlns="http://ns.adobe.com/air/extension/3.1">
     <sdkVersion>5.1</sdkVersion>
     <linkerOptions>
          
          <option>-framework CoreMotion<option>
          
          <option>-liconv</option>
     </linkerOptions>
</platform>
Please let me know, if it does work.

Problems creating a Native Extension linking to a static library

Hi,
I'm trying to create my own Native Extension for iOs that will use another static library.
My problem occurs when I try to package my app with ADT: after a lot of "ld warning: unexpected srelocation type 9" , I get a final error : "ld: thumb bl/blx out of range (-4468380 max is +/-4M)"
This may be caused by the fact that the static library I am using needs the gcc setting "compile for thumb" turned off. I've done that in XCode to get my .a file to generate my .ane, but how could I tell ADT to take it into account ?
Thank you for your help !

Are you compiling for ARMv6 or ARMv7?
With armv7, you do not need to switch off the "compile for thumb" anyways.
Also, I guess you are using an iOS version greater than 4.3 to compile your native library. In this case, using -platformsdk switch of adt, while packaging your application might just resolve your issue.(You will see some ld 4-byte alignment warnings, but thats ok)
-Neha

Error 112: The AIR target doesn't support native extensions

I have been developing an AIR app in Flash Builder. I recently created an ANE (Air Native Extension) for FMOD and linked it with my AIR app. ADT user-unfriendliness aside, I got it working.
When I try to update my Ant build script to package the ANE files with my AIR project, ADT complains:
My-App-Descriptor-Name.xml: error 112: The AIR target doesn't support native extensions.
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I have a project using Native Extensions. While the project compiles and works fine on an Android device, when debugging I get a "Debugger failed to launch" error.
Removing the native extension references solves the issue, so I assume it's that that causes the debugger crash.
This is most regretable as the debugger opens a lot faster and provides better feedback than having to load the project up to a device.
Is anyone working on this bug?

Hi Peter,
Could you please provide the exact steps and the OS details. I assume you are using "Debug-> Debug via USB" option to launch debugger on Android Device.
Thanks and Regards,
Meenakshi

Native extension - compiler issue

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