Android Open Source - YesNoGame Init Poll Activity

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Back to project page YesNoGame.
License

The source code is released under:
GNU General Public License
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Java Source Code

package example.swa.yesnogame;
/*  w  ww.  j  av  a 2  s  .c o m*/
import java.util.Date;

import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import example.swa.yesnogame.domain.Poll;
import example.swa.yesnogame.domain.User;
import example.swa.yesnogame.service.IPollService.ICreatePollListener;

/**
 * Activity to be used for creating a new poll.
 * 
 * @author Hendrik.Stilke@siemens.com
 * 
 */
public class InitPollActivity extends BaseActivity {

  /**
   * Change the name shown in the userName textView.
   * 
   * @param name
   */
  protected void changeUserNameTextView(String name) {
    if ((name != null) && (!"".equals(name))) {
      // replace name in view
      TextView label = (TextView) findViewById(R.id.TextViewName);
      label.setText(name);
    }
  }

  /**
   * Goes back to the main activity when the cancel button is clicked.
   */
  protected void onCancelButton() {
    callMainActivity();
  }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_init_poll);

    registerButtonListeners();
    changeUserNameTextView(getStringFromIntent(PROP_USERNAME));
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.init_poll, menu);
    return true;
  }

  /**
   * Creates a new poll via the poll service on button click.
   */
  protected void onInitButton() {
    EditText editTitle = (EditText) findViewById(R.id.editTextPollTitle);
    EditText editQuestion = (EditText) findViewById(R.id.editTextPollQuestion);

    String title = editTitle.getText().toString();
    String question = editQuestion.getText().toString();

    if ((title != null) && (question != null) && (title.length() > 0) && (question.length() > 0)) {
      User user = new User(getLongFromIntent(PROP_USERID), getStringFromIntent(PROP_USERNAME));
      Poll newPoll = new Poll(null, title, question, user, true, new Date().getTime() / 1000);
      this.pollService.createPoll(newPoll, new ICreatePollListener() {

        @Override
        public void onPollCreated(Poll poll) {
          InitPollActivity.this.onPollCreated(poll);
        }
      });
    } else {
      // show an error dialog if calling the service failed
      AlertDialog.Builder builder = new Builder(this).setMessage(R.string.msg_empty_field).setPositiveButton(
          android.R.string.ok, null);
      builder.show();
    }
  }

  /**
   * Method to be called when a poll was created by the service.
   * 
   * @param poll
   */
  protected void onPollCreated(Poll poll) {
    // show an error dialog if the poll creation failed
    if (poll == null) {
      AlertDialog.Builder builder = new Builder(InitPollActivity.this).setMessage(R.string.msg_poll_init_failed)
          .setPositiveButton(android.R.string.ok, null);
      builder.show();
    } else {
      callMainActivity();
    }
  }

  /**
   * Register the listener methods for the buttons in this activity/form.
   */
  private void registerButtonListeners() {

    Button btnInitPoll = (Button) findViewById(R.id.buttonInitiatePoll);
    Button btnCancel = (Button) findViewById(R.id.buttonCancel);

    btnInitPoll.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        InitPollActivity.this.onInitButton();
      }
    });

    btnCancel.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        InitPollActivity.this.onCancelButton();
      }
    });
  }

}
Java Source Code List
