This demo shows how various action bar display option flags can be combined and their effects
/* * Copyright (C) 2010 The Android Open Source Project * * 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 app.test; import android.app.ActionBar; import android.app.ActionBar.Tab; import android.app.Activity; import android.app.FragmentTransaction; import android.os.Bundle; import android.view.Gravity; import android.view.Menu; import android.view.View; import android.view.ViewGroup.LayoutParams; /** * This demo shows how various action bar display option flags can be combined and their effects. */ public class Test extends Activity implements View.OnClickListener, ActionBar.TabListener { private View mCustomView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); findViewById(R.id.toggle_home_as_up).setOnClickListener(this); findViewById(R.id.toggle_show_home).setOnClickListener(this); findViewById(R.id.toggle_use_logo).setOnClickListener(this); findViewById(R.id.toggle_show_title).setOnClickListener(this); findViewById(R.id.toggle_show_custom).setOnClickListener(this); findViewById(R.id.toggle_navigation).setOnClickListener(this); findViewById(R.id.cycle_custom_gravity).setOnClickListener(this); mCustomView = getLayoutInflater().inflate(R.layout.action_bar_display_options_custom, null); // Configure several action bar elements that will be toggled by display options. final ActionBar bar = getActionBar(); bar.setCustomView(mCustomView, new ActionBar.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); bar.addTab(bar.newTab().setText("Tab 1").setTabListener(this)); bar.addTab(bar.newTab().setText("Tab 2").setTabListener(this)); bar.addTab(bar.newTab().setText("Tab 3").setTabListener(this)); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.my_menu, menu); return true; } public void onClick(View v) { final ActionBar bar = getActionBar(); int flags = 0; switch (v.getId()) { case R.id.toggle_home_as_up: flags = ActionBar.DISPLAY_HOME_AS_UP; break; case R.id.toggle_show_home: flags = ActionBar.DISPLAY_SHOW_HOME; break; case R.id.toggle_use_logo: flags = ActionBar.DISPLAY_USE_LOGO; break; case R.id.toggle_show_title: flags = ActionBar.DISPLAY_SHOW_TITLE; break; case R.id.toggle_show_custom: flags = ActionBar.DISPLAY_SHOW_CUSTOM; break; case R.id.toggle_navigation: bar.setNavigationMode( bar.getNavigationMode() == ActionBar.NAVIGATION_MODE_STANDARD ? ActionBar.NAVIGATION_MODE_TABS : ActionBar.NAVIGATION_MODE_STANDARD); return; case R.id.cycle_custom_gravity: ActionBar.LayoutParams lp = (ActionBar.LayoutParams) mCustomView.getLayoutParams(); int newGravity = 0; switch (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) { case Gravity.LEFT: newGravity = Gravity.CENTER_HORIZONTAL; break; case Gravity.CENTER_HORIZONTAL: newGravity = Gravity.RIGHT; break; case Gravity.RIGHT: newGravity = Gravity.LEFT; break; } lp.gravity = lp.gravity & ~Gravity.HORIZONTAL_GRAVITY_MASK | newGravity; bar.setCustomView(mCustomView, lp); return; } int change = bar.getDisplayOptions() ^ flags; bar.setDisplayOptions(change, flags); } public void onTabSelected(Tab tab, FragmentTransaction ft) { } public void onTabUnselected(Tab tab, FragmentTransaction ft) { } public void onTabReselected(Tab tab, FragmentTransaction ft) { } } //main.xml