Java tutorial
/* * Copyright (C) 2013 The OmniROM Project * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * */ package org.omni.roadrunner; import android.app.Fragment; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import org.omni.roadrunner.adapters.PowerProfilesAdapter; import java.util.HashSet; import java.util.Set; /** * A simple {@link android.support.v4.app.Fragment} subclass */ public class PowerProfileFragment extends Fragment { public static final String KEY_PROFILE_IDS = "Profile_IDs"; /** * Use this factory method to create a new instance of this fragment using * the provided parameters. * * @return A new instance of fragment PowerProfileFragment. */ public static PowerProfileFragment newInstance() { PowerProfileFragment fragment = new PowerProfileFragment(); return fragment; } public PowerProfileFragment() { // Required empty public constructor } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.power_profile, menu); super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_new_profile: SharedPreferences sp = getActivity().getSharedPreferences(Constants.KEY_POWER_PROFILE_SETTINGS, 0); // Find a free profile ID int newProfileId = 0; Set<String> profiles = new HashSet<String>(sp.getStringSet(KEY_PROFILE_IDS, new HashSet<String>())); SharedPreferences.Editor editor = sp.edit(); while (profiles.contains(Integer.toString(newProfileId))) { newProfileId++; } profiles.add(Integer.toString(newProfileId)); editor.putStringSet(KEY_PROFILE_IDS, profiles); editor.commit(); // Open our setup activity with our new profile ID Intent intent = new Intent(getActivity(), ProfileSetupActivity.class); intent.putExtra(ProfileSetupActivity.EXTRA_PROFILE_ID, newProfileId); startActivity(intent); return true; } return false; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment ViewGroup root = (ViewGroup) inflater.inflate(R.layout.fragment_power_profile, container, false); ListView lv = (ListView) root.findViewById(R.id.lv_power_profiles); lv.setAdapter(new PowerProfilesAdapter(getActivity())); return root; } }