Android action bar

/* * Copyright (C) 2011 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 com.example.android.styledactionbar; import android.animation.ObjectAnimator; import android.app.ActionBar; import android.app.Activity; import android.app.FragmentTransaction; import android.app.ActionBar.OnNavigationListener; import android.os.Bundle; import android.os.Handler; import android.view.Menu; import android.view.MenuItem; import android.view.MenuItem.OnMenuItemClickListener; import android.widget.ArrayAdapter; public class MainActivity extends Activity implements ActionBar.TabListener { private final Handler handler = new Handler(); private RoundedColourFragment leftFrag; private RoundedColourFragment rightFrag; private boolean useLogo = false; private boolean showHomeUp = false; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final ActionBar ab = getActionBar(); // set defaults for logo & home up ab.setDisplayHomeAsUpEnabled(showHomeUp); ab.setDisplayUseLogoEnabled(useLogo); // set up tabs nav for (int i = 1; i < 4; i++) { ab.addTab(ab.newTab().setText("Tab " + i).setTabListener(this)); } // set up list nav ab.setListNavigationCallbacks(ArrayAdapter .createFromResource(this, R.array.sections, android.R.layout.simple_spinner_dropdown_item), new OnNavigationListener() { public boolean onNavigationItemSelected(int itemPosition, long itemId) { // FIXME add proper implementation rotateLeftFrag(); return false; } }); // default to tab navigation showTabsNav(); // create a couple of simple fragments as placeholders final int MARGIN = 16; leftFrag = new RoundedColourFragment(getResources().getColor( R.color.android_green), 1f, MARGIN, MARGIN / 2, MARGIN, MARGIN); rightFrag = new RoundedColourFragment(getResources().getColor( R.color.honeycombish_blue), 2f, MARGIN / 2, MARGIN, MARGIN, MARGIN); FragmentTransaction ft = getFragmentManager().beginTransaction(); ft.add(R.id.root, leftFrag); ft.add(R.id.root, rightFrag); ft.commit(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main_menu, menu); // set up a listener for the refresh item final MenuItem refresh = (MenuItem) menu.findItem(R.id.menu_refresh); refresh.setOnMenuItemClickListener(new OnMenuItemClickListener() { // on selecting show progress spinner for 1s public boolean onMenuItemClick(MenuItem item) { // item.setActionView(R.layout.progress_action); handler.postDelayed(new Runnable() { public void run() { refresh.setActionView(null); } }, 1000); return false; } }); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: // TODO handle clicking the app icon/logo return false; case R.id.menu_refresh: // switch to a progress animation item.setActionView(R.layout.indeterminate_progress_action); return true; case R.id.menu_both: // rotation animation of green fragment rotateLeftFrag(); return true; case R.id.menu_text: // alpha animation of blue fragment ObjectAnimator alpha = ObjectAnimator.ofFloat(rightFrag.getView(), "alpha", 1f, 0f); alpha.setRepeatMode(ObjectAnimator.REVERSE); alpha.setRepeatCount(1); alpha.setDuration(800); alpha.start(); return true; case R.id.menu_logo: useLogo = !useLogo; item.setChecked(useLogo); getActionBar().setDisplayUseLogoEnabled(useLogo); return true; case R.id.menu_up: showHomeUp = !showHomeUp; item.setChecked(showHomeUp); getActionBar().setDisplayHomeAsUpEnabled(showHomeUp); return true; case R.id.menu_nav_tabs: item.setChecked(true); showTabsNav(); return true; case R.id.menu_nav_label: item.setChecked(true); showStandardNav(); return true; case R.id.menu_nav_drop_down: item.setChecked(true); showDropDownNav(); return true; case R.id.menu_bak_none: item.setChecked(true); getActionBar().setBackgroundDrawable(null); return true; case R.id.menu_bak_gradient: item.setChecked(true); getActionBar().setBackgroundDrawable(getResources().getDrawable(R.drawable.ad_action_bar_gradient_bak)); return true; default: return super.onOptionsItemSelected(item); } } private void rotateLeftFrag() { if (leftFrag != null) { ObjectAnimator.ofFloat(leftFrag.getView(), "rotationY", 0, 180) .setDuration(500).start(); } } private void showStandardNav() { ActionBar ab = getActionBar(); if (ab.getNavigationMode() != ActionBar.NAVIGATION_MODE_STANDARD) { ab.setDisplayShowTitleEnabled(true); ab.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); } } private void showDropDownNav() { ActionBar ab = getActionBar(); if (ab.getNavigationMode() != ActionBar.NAVIGATION_MODE_LIST) { ab.setDisplayShowTitleEnabled(false); ab.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); } } private void showTabsNav() { ActionBar ab = getActionBar(); if (ab.getNavigationMode() != ActionBar.NAVIGATION_MODE_TABS) { ab.setDisplayShowTitleEnabled(false); ab.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); } } public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) { // FIXME add a proper implementation, for now just rotate the left // fragment rotateLeftFrag(); } public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) { // FIXME implement this } public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) { // FIXME implement this } }