Android Open Source - Timed-Vibration Main Fragment

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Back to project page Timed-Vibration.

License

The source code is released under:

GNU General Public License

Java Source Code

// Copyright 2012, Anders Hckersten
///*from w w w .  ja v  a  2  s.  c  o m*/
// This file is part of Timed Vibration.
//
// Timed Vibration 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.
//
// Timed Vibration 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 Timed Vibration.  If not, see <http://www.gnu.org/licenses/>.

package se.hockersten.timed.vibration.main;

import se.hockersten.timed.vibration.R;
import se.hockersten.timed.vibration.preferences.PreferencesActivity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
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.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabHost.TabSpec;

public class MainFragment extends Fragment implements OnTabChangeListener {
    // Constants used to describe the two available tabs
    private static final String TAB_PRACTICE = "PRACTICE";
    private static final String TAB_COMPETITION = "COMPETITION";

    // Constants used when saving state for this Fragment
    private static final String CURRENT_TAB = "CURRENT_TAB";

    private View root;
    private TabHost host;
    /** The currently active tab */
    private String currentTab = TAB_PRACTICE;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        root = inflater.inflate(R.layout.main_fragment, container, false);
        host = (TabHost) root.findViewById(android.R.id.tabhost);

        host.setup();
        Resources res = getResources();
        host.addTab(newTab(TAB_PRACTICE, res.getString(R.string.Practice), R.id.mainFragment_tabPractice));
        host.addTab(newTab(TAB_COMPETITION, res.getString(R.string.Competition), R.id.mainFragment_tabCompetition));

        return root;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        setHasOptionsMenu(true);

        host.setOnTabChangedListener(this);
        host.setCurrentTabByTag(currentTab);
        onTabChanged(currentTab);
    }

    @Override
    public void onResume() {
        SharedPreferences sharedPrefs = getActivity().getPreferences(Context.MODE_PRIVATE);
        currentTab = sharedPrefs.getString(CURRENT_TAB, TAB_PRACTICE);
        host.setCurrentTabByTag(currentTab);
        onTabChanged(currentTab);
        super.onResume();
    }

    @Override
    public void onStop() {
        SharedPreferences sharedPrefs = getActivity().getPreferences(Context.MODE_PRIVATE);
        SharedPreferences.Editor prefsEditor = sharedPrefs.edit();
        prefsEditor.putString(CURRENT_TAB, currentTab);
        prefsEditor.commit();
        super.onStop();
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.menu, menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle item selection
        switch (item.getItemId()) {
        case R.id.menu_preferences:
            startActivity(new Intent(getActivity(), PreferencesActivity.class));
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    /**
     * Called to create a new tab.
     * @param tag The tag used for this tab.
     * @param labelId The label which should be used in the UI for this tab
     * @param tabContentId The tab's layout
     * @return A TabSpec corresponding to this Tab
     */
    private TabSpec newTab(String tag, String labelId, int tabContentId) {
        TabSpec tabSpec = host.newTabSpec(tag);
        tabSpec.setIndicator(labelId);
        tabSpec.setContent(tabContentId);
        return tabSpec;
    }

    @Override
    public void onTabChanged(String tabId) {
        FragmentManager fragmentManager = getFragmentManager();
        Tab oldTab = (Tab) fragmentManager.findFragmentByTag(currentTab);
        Tab newTab = (Tab) fragmentManager.findFragmentByTag(tabId);
        if (oldTab != null && oldTab != newTab) {
            oldTab.onTabInvisible();
        }
        if (newTab == null) {
            if (TAB_PRACTICE.equals(tabId)) {
                PracticeTab practiceTab = new PracticeTab();
                fragmentManager.beginTransaction()
                    .replace(R.id.mainFragment_tabPractice, practiceTab, tabId)
                    .commit();
                newTab = practiceTab;
            }
            if (TAB_COMPETITION.equals(tabId)) {
                CompetitionTab competitionTab = new CompetitionTab();
                fragmentManager.beginTransaction()
                    .replace(R.id.mainFragment_tabCompetition, competitionTab, tabId)
                    .commit();
                newTab = competitionTab;
            }
        }
        if (oldTab != newTab) {
            newTab.onTabVisible();
        }
        currentTab = tabId;
    }
}

Java Source Code List

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