Java tutorial
/* * Copyright 2011 Google Inc. * * 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.heneryh.aquanotes.ui; import com.heneryh.aquanotes.R; import com.heneryh.aquanotes.provider.AquaNotesDbContract.Sessions; import com.heneryh.aquanotes.provider.AquaNotesDbContract.Vendors; import com.heneryh.aquanotes.ui.phone.SessionDetailActivity; import com.heneryh.aquanotes.ui.phone.VendorDetailActivity; import android.app.SearchManager; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.FragmentManager; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.TabHost; import android.widget.TabWidget; import android.widget.TextView; /** * An activity that shows session and sandbox search results. This activity can be either single * or multi-pane, depending on the device configuration. We want the multi-pane support that * {@link BaseMultiPaneActivity} offers, so we inherit from it instead of * {@link BaseSinglePaneActivity}. */ public class SearchActivity extends BaseMultiPaneActivity { public static final String TAG_SESSIONS = "sessions"; public static final String TAG_VENDORS = "vendors"; private String mQuery; private TabHost mTabHost; private TabWidget mTabWidget; private DbMaintProbesFragment mSessionsFragment; private DbMaintControllersFragment mVendorsFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Intent intent = getIntent(); mQuery = intent.getStringExtra(SearchManager.QUERY); setContentView(R.layout.activity_search); getActivityHelper().setupActionBar(getTitle(), 0); final CharSequence title = getString(R.string.title_search_query, mQuery); getActivityHelper().setActionBarTitle(title); mTabHost = (TabHost) findViewById(android.R.id.tabhost); mTabWidget = (TabWidget) findViewById(android.R.id.tabs); mTabHost.setup(); setupSessionsTab(); setupVendorsTab(); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); getActivityHelper().setupSubActivity(); ViewGroup detailContainer = (ViewGroup) findViewById(R.id.fragment_container_search_detail); if (detailContainer != null && detailContainer.getChildCount() > 1) { findViewById(android.R.id.empty).setVisibility(View.GONE); } } @Override public void onNewIntent(Intent intent) { setIntent(intent); mQuery = intent.getStringExtra(SearchManager.QUERY); final CharSequence title = getString(R.string.title_search_query, mQuery); getActivityHelper().setActionBarTitle(title); mTabHost.setCurrentTab(0); mSessionsFragment.reloadFromArguments(getSessionsFragmentArguments()); mVendorsFragment.reloadFromArguments(getVendorsFragmentArguments()); } /** * Build and add "sessions" tab. */ private void setupSessionsTab() { // TODO: this is very inefficient and messy, clean it up FrameLayout fragmentContainer = new FrameLayout(this); fragmentContainer.setId(R.id.fragment_probes); fragmentContainer.setLayoutParams( new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); ((ViewGroup) findViewById(android.R.id.tabcontent)).addView(fragmentContainer); final FragmentManager fm = getSupportFragmentManager(); mSessionsFragment = (DbMaintProbesFragment) fm.findFragmentByTag("sessions"); if (mSessionsFragment == null) { mSessionsFragment = new DbMaintProbesFragment(); mSessionsFragment.setArguments(getSessionsFragmentArguments()); fm.beginTransaction().add(R.id.fragment_probes, mSessionsFragment, "sessions").commit(); } else { mSessionsFragment.reloadFromArguments(getSessionsFragmentArguments()); } // Sessions content comes from reused activity mTabHost.addTab(mTabHost.newTabSpec(TAG_SESSIONS).setIndicator(buildIndicator(R.string.db_maint_probes)) .setContent(R.id.fragment_probes)); } /** * Build and add "vendors" tab. */ private void setupVendorsTab() { // TODO: this is very inefficient and messy, clean it up FrameLayout fragmentContainer = new FrameLayout(this); fragmentContainer.setId(R.id.fragment_controllers); fragmentContainer.setLayoutParams( new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); ((ViewGroup) findViewById(android.R.id.tabcontent)).addView(fragmentContainer); final FragmentManager fm = getSupportFragmentManager(); mVendorsFragment = (DbMaintControllersFragment) fm.findFragmentByTag("vendors"); if (mVendorsFragment == null) { mVendorsFragment = new DbMaintControllersFragment(); mVendorsFragment.setArguments(getVendorsFragmentArguments()); fm.beginTransaction().add(R.id.fragment_controllers, mVendorsFragment, "vendors").commit(); } else { mVendorsFragment.reloadFromArguments(getVendorsFragmentArguments()); } // Vendors content comes from reused activity mTabHost.addTab(mTabHost.newTabSpec(TAG_VENDORS).setIndicator(buildIndicator(R.string.db_maint_controllers)) .setContent(R.id.fragment_controllers)); } private Bundle getSessionsFragmentArguments() { return intentToFragmentArguments(new Intent(Intent.ACTION_VIEW, Sessions.buildSearchUri(mQuery))); } private Bundle getVendorsFragmentArguments() { return intentToFragmentArguments(new Intent(Intent.ACTION_VIEW, Vendors.buildSearchUri(mQuery))); } /** * Build a {@link View} to be used as a tab indicator, setting the requested string resource as * its label. */ private View buildIndicator(int textRes) { final TextView indicator = (TextView) getLayoutInflater().inflate(R.layout.tab_indicator, mTabWidget, false); indicator.setText(textRes); return indicator; } @Override public BaseMultiPaneActivity.FragmentReplaceInfo onSubstituteFragmentForActivityLaunch( String activityClassName) { if (findViewById(R.id.fragment_container_search_detail) != null) { // The layout we currently have has a detail container, we can add fragments there. findViewById(android.R.id.empty).setVisibility(View.GONE); if (SessionDetailActivity.class.getName().equals(activityClassName)) { clearSelectedItems(); return new BaseMultiPaneActivity.FragmentReplaceInfo(SessionDetailFragment.class, "session_detail", R.id.fragment_container_search_detail); } else if (VendorDetailActivity.class.getName().equals(activityClassName)) { clearSelectedItems(); return new BaseMultiPaneActivity.FragmentReplaceInfo(VendorDetailFragment.class, "vendor_detail", R.id.fragment_container_search_detail); } } return null; } private void clearSelectedItems() { if (mSessionsFragment != null) { mSessionsFragment.clearCheckedPosition(); } if (mVendorsFragment != null) { mVendorsFragment.clearCheckedPosition(); } } }