Nugroho's blog.: Create Android Application (Thermometer Converter) on Android Itself, using AIDE

It my early android apps developed using Eclipse and ADT on my Mac and now ported to AIDE on my A3000, which is, say, just copy and paste, :).

The app itself consist of two button, one textview, one edit text and a spinner. The input in edit text is processed based on spinner value and the result is displayed on text edit. The button is just for checking and have fun, :)

That's it, now let's get our hand dirty...

Of course the first step is open AIDE apps, :)

then scroll down until "For Expert" choice appear, I didn't bother to use tutorial, you may like it though, :)

choose "Create new Project here", then choose "New App"

Fill the form

here my main.xml on res/layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <TextView
        android:id="@+id/tulisan"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text="This is a simple two button app. \r\n \r\n Tell your user what your app does here \r\n \r\n \r\n \r\n"
        android:textColor="#005500" />
  
    <EditText
        android:id="@+id/editText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="10"
        android:ems="10" >
        <requestFocus />
    </EditText>
    <Spinner
        android:id="@+id/sprOperator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:entries="@array/sprSuhu"
    />
  
    <Button
        android:id="@+id/buttonStart"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Start"/>
    <Button
        android:id="@+id/buttonStop"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Stop"/>
</LinearLayout>

here my strings.xml on res/value

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">ThermometerPram</string>
    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
    <string-array name="sprSuhu">
        <item >C</item>
        <item >F</item>
        <item >R</item>
        <item >K</item>
    </string-array>
</resources>

..and my MainActivity.java on src/com/nugnux/thermoaide

package com.nugnux.thermoaide;
  
import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;
import android.view.View.OnClickListener;
  
public class MainActivity extends Activity
{
    private static String logtag = "TwoButtonApp";//for use as the tag when logging
    private static String text = "belum di pilih";//for use as the tag when logging
    private static int pilihan = 0;//for use as the tag when logging
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Spinner spinner = (Spinner) findViewById(R.id.sprOperator); 
        final String sprSuhu[] = getResources().getStringArray(R.array.sprSuhu);
        ArrayAdapter adapter = ArrayAdapter.createFromResource(this,
            R.array.sprSuhu, android.R.layout.simple_spinner_item);
        spinner.setAdapter(adapter);
          
        // Set the ClickListener for Spinner
        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
            public void onItemSelected(AdapterView adapterView, View view, int i, long l) { 
            // TODO Auto-generated method stub
                Toast.makeText(MainActivity.this,"Anda memilih satuan "
                    + sprSuhu[i]+"  ",Toast.LENGTH_SHORT).show();
                text=sprSuhu[i];
                pilihan=i;
                hitung();
            }
            // If no option selected
            public void onNothingSelected(AdapterView arg0) {
                // TODO Auto-generated method stub
            } 
        });
    }
      
    //Create an anonymous implementation of OnClickListener
    private OnClickListener startListener = new OnClickListener() {
        public void onClick(View v) {
            //Log.d(logtag,"onClick() called - start button");
            Toast.makeText(MainActivity.this, "The Start button was clicked.", Toast.LENGTH_LONG).show();
            TextView tulisan = (TextView)findViewById(R.id.tulisan);
            hitung();
            //Log.d(logtag,"onClick() ended - start button");
        }
    };
      
    // Create an anonymous implementation of OnClickListener
    private OnClickListener stopListener = new OnClickListener() {
        public void onClick(View v) {
            //Log.d(logtag,"onClick() called - stop button");
            Toast.makeText(MainActivity.this, "The Stop button was clicked.", Toast.LENGTH_LONG).show();
            TextView tulisan = (TextView)findViewById(R.id.tulisan);
            tulisan.setText("tadaa...");
            //Log.d(logtag,"onClick() ended - stop button");
         }
    };
    public void hitung(){
        double hasil,suhu;
        EditText editText1 =(EditText)findViewById(R.id.editText1); 
        TextView tulisan = (TextView)findViewById(R.id.tulisan);
        tulisan.setText("hehehe, akhirnya...");
        try {
            hasil=Double.parseDouble(editText1.getText().toString());
            tulisan.append(" \r\n(angka di bawah ini adalah "+Double.toString(hasil)+" )");
            //hasil=Math.pow(hasil, 2);
            tulisan.append(" \r\n[pangkatnya adalah "+Double.toString(Math.pow(hasil, 2))+" ] \r\nspinner bernilai "+text);
            if (pilihan==0){
                suhu=9./5.*hasil+32;
                tulisan.append("\r\n Suhu "+Double.toString(hasil)+" C jika dikonversi akan menjadi bernilai:");
                tulisan.append("\r\n"+Double.toString(suhu)+" F");
                suhu=4./5.*hasil;
                tulisan.append("\r\n"+Double.toString(suhu)+" R");
                suhu=hasil+273;
                tulisan.append("\r\n"+Double.toString(suhu)+" K");
            }
            if (pilihan==1){
                suhu=5./9.*(hasil-32);
                tulisan.append("\r\n Suhu "+Double.toString(hasil)+" F jika dikonversi akan menjadi bernilai:");
                tulisan.append("\r\n"+Double.toString(suhu)+" C");
                suhu=4./9.*(hasil-32);
                tulisan.append("\r\n"+Double.toString(suhu)+" R");
                suhu=(hasil-32)*5./9.+273;
                tulisan.append("\r\n"+Double.toString(suhu)+" K");
            }
            if (pilihan==2){
                suhu=9./4.*hasil+32;
                tulisan.append("\r\n Suhu "+Double.toString(hasil)+" R jika dikonversi akan menjadi bernilai:");
                tulisan.append("\r\n"+Double.toString(suhu)+" F");
                suhu=5./4.*hasil;
                tulisan.append("\r\n"+Double.toString(suhu)+" C");
                suhu=hasil*5./4.+273;
                tulisan.append("\r\n"+Double.toString(suhu)+" K");
            }
            if (pilihan==3){
                suhu=9./5.*(hasil-273)+32;
                tulisan.append("\r\n Suhu "+Double.toString(hasil)+" K jika dikonversi akan menjadi bernilai:");
                tulisan.append("\r\n"+Double.toString(suhu)+" F");
                suhu=4./5.*(hasil-273);
                tulisan.append("\r\n"+Double.toString(suhu)+" R");
                suhu=hasil-273;
                tulisan.append("\r\n"+Double.toString(suhu)+" C");
            }
        } catch (NumberFormatException e) {
            tulisan.setText(e.getMessage()+", masukkan angka");
        }
    }
      
}