Android Open Source - currency-converter Main Activity

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Back to project page currency-converter.

License

The source code is released under:

MIT License

Java Source Code

package com.example.currency_converter;
// w  w w  . j  ava2 s . c  om
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;

public class MainActivity extends Activity implements OnItemSelectedListener {
  
  EditText edittext_tl;
  Spinner spinner_currency;
  TextView textview_show;
  Button button_click;
  TextView textview_result;
  float tl;
  String choosen;
  

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    Log.v("MainActivity","Oncreate method");
    
    edittext_tl = (EditText) findViewById(R.id.editText_tl);
    spinner_currency = (Spinner) findViewById(R.id.spinner_currency);
    textview_show = (TextView) findViewById(R.id.textView1);
    textview_result = (TextView) findViewById(R.id.textView2);
    
    ArrayAdapter adapter = ArrayAdapter.createFromResource(this, R.array.currency_array, android.R.layout.simple_spinner_item);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spinner_currency.setAdapter(adapter);
    
    spinner_currency.setOnItemSelectedListener(this);
    button_click = (Button) findViewById(R.id.button1);
    
    button_click.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View v) {
        if(choosen.equals("Dollar")){
          textview_show.setText("1 Dollar = 2.26742 TL" );
          tl = Float.parseFloat(edittext_tl.getText().toString());
          textview_result.setText((tl * 0.441439) + "$");
        }
        else if (choosen.equals("Euro")) {
          textview_show.setText("1 Euro = 2.87425 TL" );
          tl = Float.parseFloat(edittext_tl.getText().toString());
          textview_result.setText((tl * 0.347663) + "");
        }
        else{
          textview_show.setText("1gr GOLD = 89.16 TL");
          tl = Float.parseFloat(edittext_tl.getText().toString());
          textview_result.setText((tl * 0.0112157) + "gr");
        }
      }
    });
  }



  @Override
  public void onItemSelected(AdapterView<?> parent, View view, int position,
      long id) {
    choosen = spinner_currency.getItemAtPosition(position).toString();
    if(choosen.equals("Dollar")){
      textview_show.setText("1 Dollar = 2.26742 TL" );
    }
    else if (choosen.equals("Euro")) {
      textview_show.setText("1 Euro = 2.87425 TL" );
    }
    else{
      textview_show.setText("1gr GOLD = 89.16 TL");
    }
  }



  @Override
  public void onNothingSelected(AdapterView<?> parent) {
    // TODO Auto-generated method stub
    
  }
  
  @Override
  protected void onStart() {
    // TODO Auto-generated method stub
    super.onStart();
    Log.d("MainActivity", "onStart method");
  }
  
  @Override
  protected void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
    Log.d("MainActivity", "onResume method");
  }
  
  @Override
  protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    Log.d("MainActivity", "onPause method");
  }
   
  @Override
  protected void onStop() {
    // TODO Auto-generated method stub
    super.onStop();
    Log.d("MainActiviy", "onStop method");
  }
  
  @Override
  protected void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();
    Log.v("Mainactiviy", "onDestroy method");
  }
  
  
  
}

Java Source Code List

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