Java tutorial
package org.intermine.app.activity; /* * Copyright (C) 2015 InterMine * * This code may be freely distributed and modified under the * terms of the GNU Lesser General Public Licence. This should * be distributed with the code. See the LICENSE file for more * information or http://www.gnu.org/copyleft/lesser.html. * */ import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.NavUtils; import android.support.v4.view.MenuItemCompat; import android.support.v7.widget.SearchView; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.ListView; import android.widget.ProgressBar; import com.octo.android.robospice.persistence.exception.SpiceException; import com.octo.android.robospice.request.listener.RequestListener; import org.intermine.app.R; import org.intermine.app.adapter.ApiPager; import org.intermine.app.adapter.ListAdapter; import org.intermine.app.controller.LoadOnScrollViewController; import org.intermine.app.core.List; import org.intermine.app.core.ListItems; import org.intermine.app.core.templates.TemplateParameter; import org.intermine.app.net.ResponseHelper; import org.intermine.app.net.request.get.GetTemplateResultsRequest; import org.intermine.app.util.Collections; import org.intermine.app.util.Strs; import org.intermine.app.util.Templates; import org.intermine.app.util.Uris; import org.intermine.app.util.Views; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; import butterknife.ButterKnife; import butterknife.InjectView; /** * @author Daria Komkova <Daria_Komkova @ hotmail.com> */ public class TemplateResultsActivity extends BaseActivity implements SearchView.OnQueryTextListener, MenuItemCompat.OnActionExpandListener { public static final int ITEMS_PER_PAGE = 15; public static final String NAME_PARAM = "name"; public static final String METHOD_PARAM = "method"; public static final String METHOD_PARAM_DEFAULT_VALUE = "results"; public static final String TEMPLATE_NAME_KEY = "template_name_key"; public static final String TEMPLATE_TITLE_KEY = "template_title_key"; public static final String MINE_NAME_KEY = "mine_name_key"; public static final String TEMPLATE_PARAMS_KEY = "template_params_key"; protected LoadOnScrollViewController mViewController; protected boolean mLoading; @InjectView(R.id.list) ListView mListView; @InjectView(R.id.progress_view) ProgressBar mProgressBar; @InjectView(R.id.not_found_results_container) View mNotFoundView; private SearchView mSearchView; private ListAdapter mListAdapter; private LoadOnScrollViewController.LoadOnScrollDataController mDataController; private ApiPager mPager; private String mTemplateName; private String mTemplateTitle; private ArrayList<TemplateParameter> mTemplateParams; private String mMineName; private String mQuery = Strs.EMPTY_STRING; // -------------------------------------------------------------------------------------------- // Inner Classes // -------------------------------------------------------------------------------------------- public class TemplateResultsListener implements RequestListener<ListItems> { @Override public void onRequestFailure(SpiceException spiceException) { setProgress(false); mViewController.onFinishLoad(); Views.setVisible(mNotFoundView); ResponseHelper.handleSpiceException(spiceException, TemplateResultsActivity.this, mMineName); } @Override public void onRequestSuccess(ListItems result) { setProgress(false); mViewController.onFinishLoad(); if (null != result && !Collections.isNullOrEmpty(result.getFeatures())) { mListAdapter.addListItems(result); } else { Views.setVisible(mNotFoundView); } } } public class TemplateResultsCountListener implements RequestListener<Integer> { @Override public void onRequestFailure(SpiceException spiceException) { setProgress(false); mViewController.onFinishLoad(); Views.setVisible(mNotFoundView); ResponseHelper.handleSpiceException(spiceException, TemplateResultsActivity.this, mMineName); } @Override public void onRequestSuccess(Integer count) { mPager = new ApiPager(count, 0, ITEMS_PER_PAGE); fetchTemplateResults(); } } // -------------------------------------------------------------------------------------------- // Static Methods // -------------------------------------------------------------------------------------------- public static void start(Context context, String templateName, String templateTitle, String mineName, ArrayList<TemplateParameter> params) { Intent intent = new Intent(context, TemplateResultsActivity.class); intent.putExtra(TEMPLATE_NAME_KEY, templateName); intent.putExtra(TEMPLATE_TITLE_KEY, templateTitle); intent.putExtra(MINE_NAME_KEY, mineName); intent.putParcelableArrayListExtra(TEMPLATE_PARAMS_KEY, params); context.startActivity(intent); } // -------------------------------------------------------------------------------------------- // Inner Classes // -------------------------------------------------------------------------------------------- @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.template_results_activity); ButterKnife.inject(this); Toolbar toolbar = (Toolbar) findViewById(R.id.default_toolbar); setSupportActionBar(toolbar); getSupportActionBar().setDisplayHomeAsUpEnabled(true); mTemplateName = getIntent().getStringExtra(TEMPLATE_NAME_KEY); mTemplateTitle = getIntent().getStringExtra(TEMPLATE_TITLE_KEY); mMineName = getIntent().getStringExtra(MINE_NAME_KEY); mTemplateParams = getIntent().getParcelableArrayListExtra(TEMPLATE_PARAMS_KEY); mListAdapter = new ListAdapter(this); mListView.setAdapter(mListAdapter); mViewController = new LoadOnScrollViewController(getDataController(), this); mListView.setOnScrollListener(mViewController); mListView.addFooterView(mViewController.getFooterView()); if (null != mTemplateTitle) { setTitle(mTemplateTitle); setProgress(true); fetchTemplateResultsCount(); } } // -------------------------------------------------------------------------------------------- // Callbacks // -------------------------------------------------------------------------------------------- @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.templates_results_menu, menu); MenuItem menuItem = menu.findItem(R.id.templates_results_search_action); MenuItemCompat.setOnActionExpandListener(menuItem, this); mSearchView = (SearchView) menuItem.getActionView(); mSearchView.setOnQueryTextListener(this); mSearchView.setQueryHint(getString(R.string.template_search_hint)); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.open_in_browser: String webTemplatesUrl = generateListAnalysisUrl(mMineName); if (!Strs.isNullOrEmpty(webTemplatesUrl)) { WebActivity.start(this, mTemplateTitle, webTemplatesUrl); } return true; case android.R.id.home: NavUtils.navigateUpFromSameTask(this); return true; default: return super.onOptionsItemSelected(item); } } @Override public boolean onQueryTextSubmit(String query) { if (null != mSearchView) { mSearchView.clearFocus(); } return true; } @Override public boolean onMenuItemActionExpand(MenuItem item) { return true; } @Override public boolean onMenuItemActionCollapse(MenuItem item) { if (null != mSearchView) { mSearchView.clearFocus(); } mListAdapter.filter(Strs.EMPTY_STRING); Views.setVisible(mListView); Views.setGone(mNotFoundView); return true; } @Override public boolean onQueryTextChange(String query) { mQuery = query; if (!Strs.isNullOrEmpty(mQuery)) { mListAdapter.filter(query); if (mListAdapter.isFilteredResultsEmpty()) { Views.setVisible(mNotFoundView); Views.setGone(mListView); } else { Views.setVisible(mListView); Views.setGone(mNotFoundView); } } return true; } // -------------------------------------------------------------------------------------------- // Fragment Lifecycle // -------------------------------------------------------------------------------------------- protected LoadOnScrollViewController.LoadOnScrollDataController generateDataController() { return new LoadOnScrollViewController.LoadOnScrollDataController() { @Override public boolean hasMore() { return mPager == null || mPager.hasMorePages(); } @Override public boolean isLoading() { return mLoading; } @Override public void loadMore() { mPager = mPager.next(); fetchTemplateResults(); mViewController.onStartLoad(); mLoading = true; } }; } protected LoadOnScrollViewController.LoadOnScrollDataController getDataController() { if (null == mDataController) { mDataController = generateDataController(); } return mDataController; } // -------------------------------------------------------------------------------------------- // Helper Methods // -------------------------------------------------------------------------------------------- protected void fetchTemplateResults() { GetTemplateResultsRequest request = new GetTemplateResultsRequest(ListItems.class, this, mTemplateName, mTemplateParams, mMineName, mPager.getCurrentPage() * mPager.getPerPage(), ITEMS_PER_PAGE); execute(request, new TemplateResultsListener()); } protected void fetchTemplateResultsCount() { GetTemplateResultsRequest request = new GetTemplateResultsRequest(Integer.class, this, mTemplateName, mTemplateParams, mMineName, 0, ITEMS_PER_PAGE); execute(request, new TemplateResultsCountListener()); } protected void setProgress(boolean loading) { mLoading = loading; if (loading) { Views.setVisible(mProgressBar); Views.setGone(mListView, mNotFoundView); } else { Views.setVisible(mListView); Views.setGone(mProgressBar); } } private String generateListAnalysisUrl(String mineName) { String webAppUrl = mStorage.getMineWebAppUrl(mineName); if (!Strs.isNullOrEmpty(webAppUrl)) { Map<String, String> params = Templates.generateUrlParams(mTemplateParams); params.put(NAME_PARAM, mTemplateName); params.put(METHOD_PARAM, METHOD_PARAM_DEFAULT_VALUE); return Uris.expandQuery(webAppUrl + getString(R.string.web_template_results_path), params); } return Strs.EMPTY_STRING; } }