Android Open Source - dbpendler Edit Connection

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License

The source code is released under:

Copyright 2013 Marcus Schiesser Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Softw...

Java Source Code

package de.marcusschiesser.dbpendler.client;
/*from   w  w w  .ja  va2  s.  c o m*/
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import de.marcusschiesser.dbpendler.client.adapters.EditConnectionAdapter;
import de.marcusschiesser.dbpendler.client.adapters.StationAdapter;
import de.marcusschiesser.dbpendler.client.model.ConnectionsDb;
import de.marcusschiesser.dbpendler.client.services.ConnectionService;
import de.marcusschiesser.dbpendler.common.vo.ConnectionVO;

public class EditConnection extends ListActivity {

  private AutoCompleteTextView mStartText;
  private AutoCompleteTextView mDestinationText;
  private Long mRowId;
  private ConnectionsDb mConnectionsDb;
  private int mClickPosition;
  private ProgressDialog mProgressDialog;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.edit_connection);
    mConnectionsDb = new ConnectionsDb(this);

    mProgressDialog = new ProgressDialog(this);
    mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
    mProgressDialog.setMessage(getResources().getString(R.string.edit_waiting));
    mProgressDialog.setCancelable(false);
    mProgressDialog.setIndeterminate(true);
    
    mStartText = (AutoCompleteTextView) findViewById(R.id.edit_start);
    StationAdapter adapter = new StationAdapter(this);
    AdapterView.OnItemClickListener itemListener = new AdapterView.OnItemClickListener() {
      public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
          long arg3) {
        updateList();
      }
    };
    mStartText.setAdapter(adapter);
    mStartText.setOnItemClickListener(itemListener);
    mDestinationText = (AutoCompleteTextView) findViewById(R.id.edit_destination);
    mDestinationText.setAdapter(adapter);
    mDestinationText.setOnItemClickListener(itemListener);

    // get row id from savedinstance or intent
    mRowId = (savedInstanceState == null) ? null
        : (Long) savedInstanceState
            .getSerializable(ConnectionsDb.KEY_ROWID);
    if (mRowId == null) {
      Bundle extras = getIntent().getExtras();
      mRowId = extras != null ? extras.getLong(ConnectionsDb.KEY_ROWID)
          : null;
    }

    populateFields();

    Button okButton = (Button) findViewById(R.id.edit_ok);
    okButton.setOnClickListener(new View.OnClickListener() {
      public void onClick(View v) {
        if(commitData()) {
          setResult(RESULT_OK);
          finish();
        }
      }
    });
    Button cancelButton = (Button) findViewById(R.id.edit_cancel);
    cancelButton.setOnClickListener(new View.OnClickListener() {
      public void onClick(View v) {
        setResult(RESULT_CANCELED);
        finish();
      }
    });
  }
  
    public void updateList() {
      String start = mStartText.getText().toString();
    String destination = mDestinationText.getText().toString();
    if(start.trim().length()>0 && destination.trim().length()>0) {
      
      ConnectionService service = new ConnectionService() {
          @Override
          protected void onPreExecute() {
            mProgressDialog.show();
          }
        @Override
        protected void onPostExecute(ConnectionVO[] result) {
          mProgressDialog.dismiss();
          if(result!=null) {
            setListAdapter(new EditConnectionAdapter(EditConnection.this, android.R.layout.simple_list_item_1, result));
          } else {
            setListAdapter(null);
          }
        }
        };
        
      service.execute(start, destination);
    }
  }

  private void populateFields() {
        if (mRowId != null) {
            Cursor note = mConnectionsDb.fetchConnection(mRowId);
            startManagingCursor(note);
            mStartText.setText(note.getString(
                    note.getColumnIndexOrThrow(ConnectionsDb.KEY_START)));
            mDestinationText.setText(note.getString(
                    note.getColumnIndexOrThrow(ConnectionsDb.KEY_DESTINATION)));
            updateList();
        }
    }

    @Override
    protected void onDestroy() {
      super.onDestroy();
      mConnectionsDb.close();
    }
    
    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putSerializable(ConnectionsDb.KEY_ROWID, mRowId);
    }

    @Override
    protected void onPause() {
        super.onPause();
    }

    @Override
    protected void onResume() {
        super.onResume();
        populateFields();
    }

    private boolean commitData() {
        ListView listView = getListView();
        ConnectionVO selectedItem = (ConnectionVO) listView.getItemAtPosition(mClickPosition);

        if(selectedItem==null) {
          Toast.makeText(this, R.string.edit_no_connection, Toast.LENGTH_LONG).show();
          return false;
        } else {
          if (mRowId == null) {
          long id = mConnectionsDb.createConnection(selectedItem);
                if (id > 0) {
                    mRowId = id;
                }
            } else {
                mConnectionsDb.updateConnection(mRowId, selectedItem);
            }
          return true;
        } 
    }
    
    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
      super.onListItemClick(l, v, position, id);
      mClickPosition = position;
      setSelection(mClickPosition);
    }
}

Java Source Code List

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