Java tutorial
/* * Copyright 2014 Google Inc. All rights reserved. * * 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.google.samples.apps.sergio.ui; import android.app.FragmentManager; import android.app.SearchManager; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.content.IntentCompat; import android.support.v7.widget.Toolbar; import android.text.TextUtils; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.support.v7.widget.SearchView; import com.google.samples.apps.sergio.R; import com.google.samples.apps.sergio.model.TagMetadata; import com.google.samples.apps.sergio.provider.ScheduleContract; import com.google.samples.apps.sergio.ui.debug.actions.ShowFeedbackNotificationAction; import com.google.samples.apps.sergio.util.AnalyticsManager; import static com.google.samples.apps.sergio.util.LogUtils.*; public class SearchActivity extends BaseActivity implements SessionsFragment.Callbacks { private static final String TAG = makeLogTag("SearchActivity"); private final static String SCREEN_LABEL = "Search"; SessionsFragment mSessionsFragment = null; SearchView mSearchView = null; String mQuery = ""; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_search); Toolbar toolbar = getActionBarToolbar(); toolbar.setTitle(R.string.title_search); toolbar.setNavigationIcon(R.drawable.ic_up); toolbar.setNavigationOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { navigateUpToFromChild(SearchActivity.this, IntentCompat .makeMainActivity(new ComponentName(SearchActivity.this, BrowseSessionsActivity.class))); } }); FragmentManager fm = getFragmentManager(); mSessionsFragment = (SessionsFragment) fm.findFragmentById(R.id.fragment_container); String query = getIntent().getStringExtra(SearchManager.QUERY); query = query == null ? "" : query; mQuery = query; if (mSessionsFragment == null) { mSessionsFragment = new SessionsFragment(); Bundle args = intentToFragmentArguments( new Intent(Intent.ACTION_VIEW, ScheduleContract.Sessions.buildSearchUri(query))); mSessionsFragment.setArguments(args); fm.beginTransaction().add(R.id.fragment_container, mSessionsFragment).commit(); } if (mSearchView != null) { mSearchView.setQuery(query, false); } overridePendingTransition(0, 0); } @Override public void onSessionSelected(String sessionId, View clickedView) { /* [ANALYTICS:EVENT] * TRIGGER: Click on a session on the Search screen. * CATEGORY: 'Search' * ACTION: 'selectsession' * LABEL: session ID (for example "3284-fac320-2492048-bf391') * [/ANALYTICS] */ AnalyticsManager.sendEvent(SCREEN_LABEL, "selectsession", sessionId); getLUtils().startActivityWithTransition( new Intent(Intent.ACTION_VIEW, ScheduleContract.Sessions.buildSessionUri(sessionId)), clickedView, SessionDetailActivity.TRANSITION_NAME_PHOTO); } @Override public void onTagMetadataLoaded(TagMetadata metadata) { } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); onNewIntent(getIntent()); } @Override protected void onNewIntent(Intent intent) { LOGD(TAG, "SearchActivity.onNewIntent: " + intent); setIntent(intent); String query = intent.getStringExtra(SearchManager.QUERY); Bundle args = intentToFragmentArguments( new Intent(Intent.ACTION_VIEW, ScheduleContract.Sessions.buildSearchUri(query))); LOGD(TAG, "onNewIntent() now reloading sessions fragment with args: " + args); mSessionsFragment.reloadFromArguments(args); /* [ANALYTICS:EVENT] * TRIGGER: Start a search on the Search Activity * CATEGORY: 'Search' * ACTION: 'Search' * LABEL: none (we DO NOT log the search query). * [/ANALYTICS] */ AnalyticsManager.sendEvent(SCREEN_LABEL, "Search", ""); } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.search, menu); final MenuItem searchItem = menu.findItem(R.id.menu_search); if (searchItem != null) { SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE); final SearchView view = (SearchView) searchItem.getActionView(); mSearchView = view; if (view == null) { LOGW(TAG, "Could not set up search view, view is null."); } else { view.setSearchableInfo(searchManager.getSearchableInfo(getComponentName())); view.setIconified(false); view.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String s) { view.clearFocus(); if ("zzznotif".equals(s)) { (new ShowFeedbackNotificationAction()).run(SearchActivity.this, null); } return true; } @Override public boolean onQueryTextChange(String s) { if (null != mSessionsFragment) { mSessionsFragment.requestQueryUpdate(s); } return true; } }); view.setOnCloseListener(new SearchView.OnCloseListener() { @Override public boolean onClose() { finish(); return false; } }); } if (!TextUtils.isEmpty(mQuery)) { view.setQuery(mQuery, false); } } return true; } @Override protected void onPause() { super.onPause(); if (isFinishing()) { overridePendingTransition(0, 0); } } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == R.id.menu_search) { return true; } return super.onOptionsItemSelected(item); } }