Java tutorial
/* * Copyright 2014 "" daiv * * 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.daiv.android.twitter.ui.profile_viewer.fragments.sub_fragments; import android.app.Activity; import android.app.Fragment; import android.content.Context; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.LinearLayout; import com.daiv.android.twitter.R; import com.daiv.android.twitter.adapters.ArrayListLoader; import com.daiv.android.twitter.adapters.TimelineArrayAdapter; import com.daiv.android.twitter.data.App; import com.daiv.android.twitter.settings.AppSettings; import com.daiv.android.twitter.utils.Utils; import org.lucasr.smoothie.AsyncListView; import org.lucasr.smoothie.ItemManager; import java.util.ArrayList; import twitter4j.Paging; import twitter4j.Query; import twitter4j.QueryResult; import twitter4j.ResponseList; import twitter4j.Status; import twitter4j.Twitter; import uk.co.senab.bitmapcache.BitmapLruCache; public class ProfileMentionsFragment extends Fragment { public View layout; public Context context; public AppSettings settings; public SharedPreferences sharedPrefs; public AsyncListView listView; public LinearLayout spinner; public LayoutInflater inflater; public String screenName; public ProfileMentionsFragment() { this.screenName = ""; } @Override public void onAttach(Activity activity) { super.onAttach(activity); context = activity; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreateView(inflater, container, savedInstanceState); screenName = getArguments().getString("screen_name"); settings = AppSettings.getInstance(context); sharedPrefs = context.getSharedPreferences("com.daiv.android.twitter_world_preferences", Context.MODE_WORLD_READABLE + Context.MODE_WORLD_WRITEABLE); this.inflater = LayoutInflater.from(context); layout = inflater.inflate(R.layout.list_fragment, null); listView = (AsyncListView) layout.findViewById(R.id.listView); spinner = (LinearLayout) layout.findViewById(R.id.spinner); BitmapLruCache cache = App.getInstance(context).getBitmapCache(); ArrayListLoader loader = new ArrayListLoader(cache, context); ItemManager.Builder builder = new ItemManager.Builder(loader); builder.setPreloadItemsEnabled(true).setPreloadItemsCount(50); builder.setThreadPoolSize(4); listView.setItemManager(builder.build()); listView.setOnScrollListener(new AbsListView.OnScrollListener() { @Override public void onScrollStateChanged(AbsListView absListView, int i) { } @Override public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount, int totalItemCount) { final int lastItem = firstVisibleItem + visibleItemCount; if (lastItem == totalItemCount && canRefresh && hasMore) { getMore(); } } }); doSearch(); return layout; } public ArrayList<Status> tweets = new ArrayList<Status>(); public boolean hasMore = true; public boolean canRefresh = false; public TimelineArrayAdapter adapter; public Query query; public void doSearch() { spinner.setVisibility(View.VISIBLE); new Thread(new Runnable() { @Override public void run() { try { Twitter twitter = Utils.getTwitter(context, settings); query = new Query("@" + screenName + " -RT"); query.sinceId(1); QueryResult result = twitter.search(query); tweets.clear(); for (twitter4j.Status status : result.getTweets()) { tweets.add(status); } if (result.hasNext()) { query = result.nextQuery(); hasMore = true; } else { hasMore = false; } ((Activity) context).runOnUiThread(new Runnable() { @Override public void run() { adapter = new TimelineArrayAdapter(context, tweets); listView.setAdapter(adapter); listView.setVisibility(View.VISIBLE); spinner.setVisibility(View.GONE); canRefresh = true; if (!hasMore) { View footer = inflater.inflate(R.layout.mentions_footer, null); listView.addFooterView(footer); listView.setFooterDividersEnabled(false); } } }); } catch (Exception e) { e.printStackTrace(); ((Activity) context).runOnUiThread(new Runnable() { @Override public void run() { spinner.setVisibility(View.GONE); canRefresh = false; if (!hasMore) { View footer = inflater.inflate(R.layout.mentions_footer, null); listView.addFooterView(footer); listView.setFooterDividersEnabled(false); } } }); } catch (OutOfMemoryError e) { e.printStackTrace(); ((Activity) context).runOnUiThread(new Runnable() { @Override public void run() { spinner.setVisibility(View.GONE); canRefresh = false; if (!hasMore) { View footer = inflater.inflate(R.layout.mentions_footer, null); listView.addFooterView(footer); listView.setFooterDividersEnabled(false); } } }); } } }).start(); } public void getMore() { canRefresh = false; new Thread(new Runnable() { @Override public void run() { try { Twitter twitter = Utils.getTwitter(context, settings); QueryResult result = twitter.search(query); for (twitter4j.Status status : result.getTweets()) { tweets.add(status); } if (result.hasNext()) { query = result.nextQuery(); hasMore = true; } else { hasMore = false; } ((Activity) context).runOnUiThread(new Runnable() { @Override public void run() { adapter.notifyDataSetChanged(); canRefresh = true; if (!hasMore) { View footer = inflater.inflate(R.layout.mentions_footer, null); listView.addFooterView(footer); listView.setFooterDividersEnabled(false); } } }); } catch (Exception e) { e.printStackTrace(); ((Activity) context).runOnUiThread(new Runnable() { @Override public void run() { canRefresh = false; hasMore = false; } }); } } }).start(); } }