Java tutorial
/* * Copyright 2013 Tomas Joelsson * * 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.tnc.android.graphite.fragments; import java.util.ArrayList; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.ListFragment; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.LayoutInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.ArrayAdapter; import com.tnc.android.graphite.R; public class SavedGraphsFragment extends ListFragment { private OnItemSelectedListener listener; private ArrayAdapter<String> adapter; private ArrayList<String> graphs; public void setContent(ArrayList<String> graphs) { final ArrayList<String> savedGraphs = graphs; this.graphs = graphs; adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, savedGraphs); setListAdapter(adapter); registerForContextMenu(getListView()); getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { listener.onSelect(position); } }); } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); menu.add(0, v.getId(), 0, R.string.saved_dialog_delete); } @Override public boolean onContextItemSelected(MenuItem item) { AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); adapter.remove(graphs.get(info.position)); listener.onDelete(info.position); return super.onContextItemSelected(item); } @Override public void onAttach(Activity activity) { super.onAttach(activity); listener = (OnItemSelectedListener) activity; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.plain_list, container, false); return view; } public interface OnItemSelectedListener { public void onSelect(int position); public void onDelete(int position); } }