Android Open Source - introToDroid4ed Simple Action Bar Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.introtoandroid.simpleactionbar;
/*w ww.  j a  v a  2  s .  c o  m*/
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class SimpleActionBarActivity extends Activity {
  Boolean isHidden = false;
  Button hideActionBar;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_simple_action_bar);
    
    hideActionBar = (Button) findViewById(R.id.hide);
    hideActionBar.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        if (!isHidden) {
          getActionBar().hide();
          hideActionBar.setText(R.string.show_action_bar);
        } else {
          getActionBar().show();          
          hideActionBar.setText(R.string.hide_action_bar);
        }
        isHidden = !isHidden;
      }
    });
  }

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

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.menu_add:
            Toast.makeText(this, "Add Clicked", Toast.LENGTH_SHORT).show();
      return true;
        case R.id.menu_close:
          finish();
          return true;
        case R.id.menu_help:
            Toast.makeText(this, "Help Clicked", Toast.LENGTH_SHORT).show();
          return true;
        default:
            return super.onOptionsItemSelected(item);
    }
  }
}

Java Source Code List

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