[ANE]開發Adobe Air ANE - Part 2:Android AlertDialog功能

目標功能為Android原生 AlertDialog 顯示.
專案建立請參照:[ANE]開發Adobe Air ANE - Part 1:使用Android Studio



1.先於專案程式碼目錄建立以下檔案



MyAneExtension.java

package extension.myfirstandroidane;

import com.adobe.fre.FREContext;
import com.adobe.fre.FREExtension;

public class MyAneExtension implements FREExtension{
    @Override
    public void initialize() {

    }

    @Override
    public FREContext createContext(String s) {
        return new MyAneExtensionContext();
    }

    @Override
    public void dispose() {

    }
}

MyAneExtensionContext.java

package extension.myfirstandroidane;

import com.adobe.fre.FREContext;
import com.adobe.fre.FREFunction;

import java.util.HashMap;
import java.util.Map;

public class MyAneExtensionContext extends FREContext {

    @Override
    public Map<String, FREFunction> getFunctions() {
        Map<String, FREFunction> functions = new HashMap<String, FREFunction>();
        functions.put("alertDialog", new AlertFREFunction());
        return functions;
    }

    @Override
    public void dispose() {

    }
}

AlertFREFunction.java

package extension.myfirstandroidane;

import android.app.AlertDialog;

import com.adobe.fre.FREContext;
import com.adobe.fre.FREFunction;
import com.adobe.fre.FREObject;

public class AlertFREFunction implements FREFunction {
    @Override
    public FREObject call(FREContext freContext, FREObject[] freObjects) {

        String title = "title";
        String alertMessage = "alertMessage";
        String buttonLabel = "ok";
        try {
            alertMessage = freObjects[0].getAsString();
            title = freObjects[1].getAsString();
        } catch (Exception e) {
        }
        new AlertDialog.Builder(freContext.getActivity())
            .setTitle(title)
            .setMessage(alertMessage)
            .setPositiveButton(buttonLabel,null).show();
        return null;
    }
}

2.建立Action Script3.0 專案

AndroidAlert.as

package zpl.extension 
{
    import flash.events.StatusEvent;
    import flash.external.ExtensionContext;
    
    public class AndroidAlert 
    {
        private static var _instance:AndroidAlert;
        public static function get instance():AndroidAlert
        {
            if(_instance == null)
            {
                _instance = new AndroidAlert();
            }
            return _instance;
        }
        
        private var _extension:ExtensionContext;
        
        public function AndroidAlert() 
        {
            _extension = ExtensionContext.createExtensionContext( "zpl.ane.alert", "" );
        }
        
        public function show(msg:String,title:String):void
        {
            _extension.call("alertDialog",msg,title);
        }
    }
}

3.建立extension設定檔
extension.xml

<extension xmlns="http://ns.adobe.com/air/extension/21.0"> 
    <id>zpl.ane.alert</id> 
    <versionNumber>1.0.0</versionNumber> 
    <platforms> 
       <platform name="Android-ARM"> 
           <applicationDeployment> 
               <nativeLibrary>classes.jar</nativeLibrary> 
               <initializer>extension.myfirstandroidane.MyAneExtension</initializer> 
               <finalizer>extension.myfirstandroidane.MyAneExtension</finalizer> 
           </applicationDeployment> 
       </platform> 
       <platform name="default"> 
           <applicationDeployment/> 
       </platform> 
    </platforms> 
</extension> 

4.使用compc生成swc
compc指令參考

compc -optimize -source-path ../src -include-sources ../src -external-library-path "xxx\ascsdk\21.0.0\frameworks\libs\air" -output "AndrodAlert.swc"

5.將swc解壓縮後可取得 library.swf

6.使用 ADT 建立ANE
ADT 指令參考

adt -package -target ane AndrodAlert.ane extension.xml -swc AndrodAlert.swc  -platform Android-ARM library.swf classes.jar -platform default library.swf

7.輸出 AndrodAlert.ane 完成

※步驟3~7可使用  輸出ANE用bat檔 代替

如需由Java層呼叫AS3請參考:
 [ANE]開發Adobe Air ANE - Part 3:FREContext dispatchStatusEventAsync