Java tutorial
/* * Copyright 2012 Javier Prez Pacheco and Francisco Daz Rodriguez * TweetTopics 2.0 * javielinux@gmail.com * * 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.javielinux.tweettopics2; import android.content.Intent; import android.graphics.Shader; import android.graphics.drawable.BitmapDrawable; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.Toast; import com.android.dataframework.DataFramework; import com.android.dataframework.Entity; import com.javielinux.adapters.RowTrendsLocationAdapter; import com.javielinux.api.APIDelegate; import com.javielinux.api.APITweetTopics; import com.javielinux.api.request.TrendsLocationRequest; import com.javielinux.api.response.BaseResponse; import com.javielinux.api.response.ErrorResponse; import com.javielinux.api.response.TrendsLocationResponse; import com.javielinux.utils.ColumnsUtils; import com.javielinux.utils.TweetTopicsUtils; import com.javielinux.utils.Utils; import twitter4j.Location; import twitter4j.ResponseList; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; public class TrendsLocationActivity extends BaseActivity implements APIDelegate<BaseResponse> { private LinearLayout viewTrendsParent; private LinearLayout viewNoTrendsLocation; private LinearLayout viewLoading; private LinearLayout viewNoInternet; private ListView listView; private ThemeManager themeManager; private ArrayList<Location> trendslocation_list; private RowTrendsLocationAdapter trendslocation_adapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); try { DataFramework.getInstance().open(this, Utils.packageName); } catch (Exception e) { e.printStackTrace(); } themeManager = new ThemeManager(this); themeManager.setTheme(); setContentView(R.layout.trendslocation_activity); viewTrendsParent = (LinearLayout) this.findViewById(R.id.trends_location_parent); viewNoTrendsLocation = (LinearLayout) this.findViewById(R.id.trends_location_view_no_lists); viewLoading = (LinearLayout) this.findViewById(R.id.trends_location_view_loading); viewNoInternet = (LinearLayout) this.findViewById(R.id.trends_location_view_no_internet); listView = (ListView) this.findViewById(R.id.trends_location_list); BitmapDrawable bmp = (BitmapDrawable) this.getResources() .getDrawable(themeManager.getResource("search_tile")); if (bmp != null) { bmp.setTileModeXY(Shader.TileMode.REPEAT, Shader.TileMode.REPEAT); viewTrendsParent.setBackgroundDrawable(bmp); } trendslocation_list = new ArrayList<Location>(); trendslocation_adapter = new RowTrendsLocationAdapter(this, trendslocation_list); listView.setAdapter(trendslocation_adapter); listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> av, View v, int pos, long id) { Location trendslocation = trendslocation_adapter.getItem(pos); createTrendsLocationColumn(trendslocation); } }); listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView<?> av, View v, int pos, long id) { return true; } }); showLoading(); loadTrendsLocation(); } private void createTrendsLocationColumn(Location trendslocation) { ArrayList<Entity> created_column_list = DataFramework.getInstance().getEntityList("columns", "location_id=" + trendslocation.getWoeid()); int position = 0; if (created_column_list.size() == 0) { position = ColumnsUtils.nextPositionColumn(); Entity type = new Entity("type_columns", (long) TweetTopicsUtils.COLUMN_TRENDING_TOPIC); Entity user_list = new Entity("columns"); user_list.setValue("description", trendslocation.getName()); user_list.setValue("type_id", type); user_list.setValue("position", position); user_list.setValue("location_id", trendslocation.getWoeid()); user_list.save(); Toast.makeText(this, getString(R.string.column_created, trendslocation.getName()), Toast.LENGTH_LONG) .show(); } else { position = created_column_list.get(0).getInt("position"); } Intent intent = getIntent(); intent.putExtra("position", position); setResult(RESULT_OK, intent); finish(); } public void showNoTrendsLocation() { viewNoTrendsLocation.setVisibility(View.VISIBLE); viewLoading.setVisibility(View.GONE); viewNoInternet.setVisibility(View.GONE); listView.setVisibility(View.GONE); } public void showLoading() { viewNoTrendsLocation.setVisibility(View.GONE); viewLoading.setVisibility(View.VISIBLE); viewNoInternet.setVisibility(View.GONE); listView.setVisibility(View.GONE); } public void showNoInternet() { viewNoTrendsLocation.setVisibility(View.GONE); viewLoading.setVisibility(View.GONE); viewNoInternet.setVisibility(View.VISIBLE); listView.setVisibility(View.GONE); } public void showTrendsLocationLists() { viewNoTrendsLocation.setVisibility(View.GONE); viewLoading.setVisibility(View.GONE); viewNoInternet.setVisibility(View.GONE); listView.setVisibility(View.VISIBLE); } public void loadTrendsLocation() { TrendsLocationRequest trendsLocationRequest = new TrendsLocationRequest(); APITweetTopics.execute(this, getSupportLoaderManager(), this, trendsLocationRequest); } @Override protected void onResume() { super.onResume(); } @Override protected void onDestroy() { super.onDestroy(); DataFramework.getInstance().close(); } @Override public void onResults(BaseResponse result) { TrendsLocationResponse trendsLocationResponse = (TrendsLocationResponse) result; ResponseList<Location> trendslocation_data = trendsLocationResponse.getLocationList(); try { Collections.sort(trendslocation_data, new Comparator<Location>() { public int compare(Location location1, Location location2) { return location1.getName().compareToIgnoreCase(location2.getName()); } }); for (int i = 0; i < trendslocation_data.size(); i++) trendslocation_list.add(trendslocation_data.get(i)); } catch (Exception e) { e.printStackTrace(); } trendslocation_adapter.notifyDataSetChanged(); if (trendslocation_adapter.getCount() == 0) { showNoTrendsLocation(); } else { showTrendsLocationLists(); } } @Override public void onError(ErrorResponse error) { error.getError().printStackTrace(); } }