Java tutorial
/* Copyright 2012 Andrey Zaytsev Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package net.meiolania.apps.habrahabr.activities; import net.meiolania.apps.habrahabr.R; import net.meiolania.apps.habrahabr.fragments.companies.CompaniesFragment; import android.content.DialogInterface.OnClickListener; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.FragmentTransaction; import android.view.Window; import com.actionbarsherlock.app.ActionBar; import com.actionbarsherlock.view.MenuItem; public class CompaniesActivity extends AbstractionActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); showActionBar(); loadCompanies(); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: Intent intent = new Intent(this, DashboardActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(intent); break; } return super.onOptionsItemSelected(item); } private void showActionBar() { ActionBar actionBar = getSupportActionBar(); actionBar.setDisplayHomeAsUpEnabled(true); actionBar.setTitle(R.string.companies); } private void loadCompanies() { CompaniesFragment fragment = new CompaniesFragment(); FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); fragmentTransaction.replace(android.R.id.content, fragment); fragmentTransaction.commit(); } @Override protected OnClickListener getConnectionDialogListener() { return new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { finish(); } }; } }