ConversionForm.java

package com.sample;

import com.calatrava.CalatravaPage;
import com.calatrava.shell.WebViewActivity;

import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
import android.view.View;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Iterator;

@CalatravaPage(name = "conversionForm")
public class ConversionForm extends com.calatrava.bridge.RegisteredActivity {
  @Override
  public String getFieldValue(String field){
    if(field.equalsIgnoreCase("in_currency")){
      return "USD";
    }else if(field.equalsIgnoreCase("out_currency")){
      return "AUD";
    }else if(field.equalsIgnoreCase("in_amount")){
      return ((EditText) findViewById(R.id.unconvertedEditText)).getText().toString();
    }
        
    return null;
  }
  
  @Override
  public void render(final String json){
    try{
      JSONObject jsonObj = new JSONObject(json);
      Iterator<?> keys = jsonObj.keys();

      while(keys.hasNext()){
        final String key = (String)keys.next();
        final String value = jsonObj.getString(key);
        this.runOnUiThread(new Runnable() {

          @Override
          public void run() {
            setFieldValue(key, value);
          }
        });
      }
    }catch(JSONException e){}
  }  
  
  protected void setFieldValue(String key, String value){
    if(key.equalsIgnoreCase("inCurrencies")){
      //TODO
    }else if(key.equalsIgnoreCase("outCurrencies")){
      //TODO
    }else if(key.equalsIgnoreCase("in_amount")){
      ((EditText)findViewById(R.id.unconvertedEditText)).setText(value);
    }else if(key.equalsIgnoreCase("out_amount")){
      ((TextView)findViewById(R.id.convertedTextView)).setText(value);
    }
  }

  @Override
  protected String getPageName() {
    return "conversionForm";
  }
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.conversion_form);
  }
  
  public void convert(View v) {
    this.triggerEvent("convert", new String[] {});
  }
}