Java tutorial
/* * Copyright (C) 2013 Square, 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 apt.addiction.ui; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import android.widget.Toast; import apt.addiction.R; import apt.addiction.db.Item; import apt.addiction.task.InsertTask; import com.raizlabs.android.dbflow.sql.language.Select; import rx.Observer; import rx.subscriptions.CompositeSubscription; import javax.inject.Inject; import java.util.List; public class HomeFragment extends Fragment implements Observer<Void> { private ListView listView; private CompositeSubscription subscriptions = new CompositeSubscription(); @Inject ActivityTitleController titleController; @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); ((HomeActivity) getActivity()).component().inject(this); subscriptions.add(InsertTask.saveItems().subscribe(this)); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_main, container, false); listView = (ListView) rootView.findViewById(R.id.list); return rootView; } @Override public void onResume() { super.onResume(); // Fragments should not modify things outside of their own view. Use an external controller to // ask the activity to change its title. titleController.setTitle("Home Fragment"); } @Override public void onDestroy() { super.onDestroy(); subscriptions.unsubscribe(); } @Override public void onCompleted() { List<Item> items = new Select().from(Item.class).queryList(); ItemAdapter adapter = new ItemAdapter(getActivity(), R.layout.row, items); listView.setAdapter(adapter); listView.setOnItemClickListener((parent, view, position, id) -> { Item item = adapter.getItem(position); Toast.makeText(getActivity(), item.name, Toast.LENGTH_SHORT).show(); }); } @Override public void onError(Throwable e) { } @Override public void onNext(Void aVoid) { } }