Android Open Source - FuelKeep Mpg Tracker Add New Log Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.katlic.mpgtracker;
/*from  w w w  .j  av a 2 s  .  c  o m*/
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.os.Build;

public class MpgTrackerAddNewLogActivity extends ActionBarActivity implements OnClickListener {
  
  //Add in edit text fields here.
  MpgDbInterface mpg_db;
  Toast popUpMessage;
  EditText comment, gal, miles, date;
  TextView headerLabel;
  String log_id_for_update;
  
  public static final String LOG_ID = "log_id";
  private boolean update = false;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_mpg_tracker_add_new_log);
    
    Button save_log = (Button)findViewById(R.id.add_new_log_submit_button);
    save_log.setOnClickListener(this);
    
    Button remove_log = (Button)findViewById(R.id.remove_log_button);
    
      //Build the inputs in the class
    headerLabel = (TextView)findViewById(R.id.add_new_log_form_header);
    comment = (EditText)findViewById(R.id.mpg_add_log_comment_input);
    gal = (EditText)findViewById(R.id.mpg_add_log_gallons_input);
    miles = (EditText)findViewById(R.id.mpg_add_log_miles_input);
    date = (EditText)findViewById(R.id.mpg_add_log_date_input);
      //Build the classes DBI object
    mpg_db = new MpgDbInterface(this);
      //Get the intent of this activity.
    Intent editIntent = getIntent();
    
    Object log_number = editIntent.getSerializableExtra(LOG_ID);
    
    if(log_number == null){ //we clicked add
      //change the header string to Add new
      headerLabel.setText(R.string.add_new_log_form_label);
      save_log.setText(R.string.mpg_save);
      remove_log.setVisibility(View.INVISIBLE);
      update = false;
    }else{  //we clicked a log
      //change the header string to Edit Log
      headerLabel.setText(R.string.mpg_edit_old_activity_title);
      save_log.setText(R.string.mpg_update);
      remove_log.setVisibility(View.VISIBLE);
      remove_log.setOnClickListener(this);
      //get the id to hit the DBI class for the log info.
      String log_id = log_number.toString();
      
      Cursor log_info = mpg_db.getMpgDbInformation("log", log_id);
      //add the info into the inputs.
      if(log_info.moveToFirst()){
        log_id_for_update = log_id;
        comment.setText(log_info.getString(1));
        gal.setText(log_info.getString(2));
        miles.setText(log_info.getString(3));
        date.setText(log_info.getString(0));
      }
      update = true;
    }
    
    if (savedInstanceState == null) {
      getSupportFragmentManager().beginTransaction()
          .add(R.id.container, new PlaceholderFragment()).commit();
    }
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  /**
   * A placeholder fragment containing a simple view.
   */
  public static class PlaceholderFragment extends Fragment {

    public PlaceholderFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      View rootView = inflater
          .inflate(R.layout.fragment_mpg_tracker_add_new_log,
              container, false);
      return rootView;
    }
  }

  @Override
  public void onClick(View v) {
    switch(v.getId()){
      case R.id.add_new_log_submit_button:
        //Add the new log to the DB then return to the main activity
        popUpMessage = Toast.makeText(this, "Saving your log information!", Toast.LENGTH_LONG);
        popUpMessage.show();
        
        String mpg = "";
        //calculate the mpg Miles / Gallons = mpg
        mpg = Integer.toString(Integer.parseInt(miles.getText().toString()) / Integer.parseInt(gal.getText().toString()));
        if(update){
          //update the information
          // Save the information to the DB then return to the main activity.
          mpg_db.manageDbUserLogs("update", date.getText().toString(), comment.getText().toString(), gal.getText().toString(), miles.getText().toString(), mpg, log_id_for_update);
        }else{
          // Save the information to the DB then return to the main activity.
          mpg_db.manageDbUserLogs("insert", date.getText().toString(), comment.getText().toString(), gal.getText().toString(), miles.getText().toString(), mpg, "-1");
        }
        break;
      
      case R.id.remove_log_button:
        popUpMessage = Toast.makeText(this, "Removing your log information!", Toast.LENGTH_LONG);
        popUpMessage.show();
        mpg_db.manageDbUserLogs("delete", null, null, null, null, null, log_id_for_update);
        break;
      default:
        break;
    }
    Intent myReturn = new Intent();
    setResult(this.RESULT_OK, myReturn);
    finish();
  }

}

Java Source Code List

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