AssetActivity.java

package com.godoro.androiddevices;

import android.app.Activity;
import android.content.res.*;
import android.graphics.drawable.*;
import android.os.Bundle;
import android.util.*;
import android.view.*;
import android.widget.*;

import org.w3c.dom.*;

import java.io.*;

import javax.xml.parsers.*;


public class AssetActivity extends Activity {

    private String XML_FILE_NAME ="exam.xml";
    private String XML_FILE_PATH ="exams/"+ XML_FILE_NAME;
    private TextView contentView;

    private String IMAGE_FILE_PATH="images/godoro_logo.jpg";
    private ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_asset);
        contentView=(TextView) findViewById(R.id.contentView);
        imageView=(ImageView) findViewById(R.id.imageView);  
        //contentView.setText(getText(R.string.resourceString));
        contentView.setText(getString(R.string.parametricString,3));
    }

    public void onLoadXmlClick(View view) {
        try {
            AssetManager assetManager = getAssets();
            InputStream in=assetManager.open(XML_FILE_PATH);
            loadXml(in);
        }catch(Exception e){
            Log.e("GodoroAndroid","Varlık yükleme yanlışlığı ",e);
            String message="Varlık yükleme yanlışlığı "+e.getMessage();
            Toast.makeText(AssetActivity.this,message,Toast.LENGTH_LONG).show();
        }
    }
   private void loadXml(InputStream in) throws Exception{
        DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
        DocumentBuilder builder=factory.newDocumentBuilder();
        Document document=builder.parse(in);
        showDocument(document);
        in.close();
    }

    private void showDocument(Document document){
        Element exam=document.getDocumentElement();
        String id=exam.getAttribute("id");
        String title=exam.getElementsByTagName("title").item(0).getTextContent();
        contentView.setText("Sınav "+id+": "+title+"\r\n");
        NodeList questionList=exam.getElementsByTagName("question");
        for (int i = 0; i < questionList.getLength(); i++) {
            Element question=(Element) questionList.item(i);
            int number=Integer.parseInt(question.getAttribute("number"));
            String body=question.getElementsByTagName("body")
                    .item(0).getTextContent();
            contentView.setText(contentView.getText()
                    +"\t"+number+". "+body+"\r\n");
            NodeList optionList=question.getElementsByTagName("option");
            for (int j = 0; j < optionList.getLength(); j++) {
                Element option = (Element) optionList.item(j);
                String code=option.getAttribute("code");
                String text=option.getTextContent();
                contentView.setText(contentView.getText()
                        +"\t\t"+code+") "+text+"\r\n");
            }
        }
    }

    public void onCopyXmlClick(View view) {
        try {
            AssetManager assetManager = getAssets();
            File directory=getFilesDir();
            //File directory=Environment.getExternalStorageDirectory();
            //File directory=Environment.getExternalStoragePublicDirectory(
            //        Environment.DIRECTORY_DOCUMENTS);
            InputStream in=assetManager.open(XML_FILE_PATH);
            File file=new File(directory, XML_FILE_NAME);
            FileOutputStream out=new FileOutputStream(file);
            copyFile(in,out);
            contentView.setText("Dosya göçürüldü "+file.getAbsolutePath());
        }catch(Exception e){
            Log.e("GodoroAndroid","Varlık göçürme yanlışlığı ",e);
            String message="Varlık göçürme yanlışlığı"+e.getMessage();
            Toast.makeText(AssetActivity.this,message,Toast.LENGTH_LONG).show();
        }
    }
    private void copyFile(InputStream in,OutputStream out)throws Exception{
        byte[] buffer=new byte[1024];
        int length;
        while((length=in.read(buffer))!= -1){
            out.write(buffer,0,length);
        }
        in.close();
        out.close();
    }

    public void onLoadImageClick(View view) {
        try {
            AssetManager assetManager = getAssets();
            InputStream in=assetManager.open(IMAGE_FILE_PATH);
            Drawable drawable = Drawable.createFromStream(in, null);
            imageView.setImageDrawable(drawable);
            contentView.setText("Görüntü gösterildi ");
        }catch(Exception e){
            Log.e("GodoroAndroid","Varlık yükleme yanlışlığı ",e);
            String message="Varlık yükleme yanlışlığı "+e.getMessage();
            Toast.makeText(AssetActivity.this,message,Toast.LENGTH_LONG).show();
        }
    }
}