Android Open Source - HockeyTimerAndroid Settings Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.nicke.hockeyapp;
/*  w w  w .  j  a  v  a2 s  .c o m*/
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.MenuItem;

import java.util.List;

/**
 * A {@link PreferenceActivity} that presents a set of application settings. On
 * handset devices, settings are presented as a single list. On tablets,
 * settings are split by category, with category headers shown to the left of
 * the list of settings.
 * <p>
 * See <a href="http://developer.android.com/design/patterns/settings.html">
 * Android Design: Settings</a> for design guidelines and the <a
 * href="http://developer.android.com/guide/topics/ui/settings.html">Settings
 * API Guide</a> for more information on developing a Settings UI.
 */
public class SettingsActivity extends PreferenceActivity {

    private static final boolean ALWAYS_SIMPLE_PREFS = false;
    public static final String TAG = "SettingsActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //getFragmentManager().beginTransaction().replace(android.R.id.content, new MainActivity.preferences()).commit();
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == android.R.id.home) {
            // This ID represents the Home or Up button. In the case of this
            // activity, the Up button is shown. Use NavUtils to allow users
            // to navigate up one level in the application structure. For
            // more details, see the Navigation pattern on Android Design:
            //
            // http://developer.android.com/design/patterns/navigation.html#up-vs-back
            //
            // TODO: If Settings has multiple levels, Up should navigate up
            // that hierarchy.
            //NavUtils.navigateUpFromSameTask(this);
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);

        setupSimplePreferencesScreen();
    }

    /**
     * Shows the simplified settings UI if the device configuration if the
     * device configuration dictates that a simplified, single-pane UI should be
     * shown.
     */
    private void setupSimplePreferencesScreen() {
        if (!isSimplePreferences(this)) {
            return;
        }

        // In the simplified UI, fragments are not used at all and we instead
        // use the older PreferenceActivity APIs.

        // get default values from resources.
        Resources r = getResources();
        String default_match_length = Integer.toString(r.getInteger(R.integer.custom_match_length));
        String default_preamble = Integer.toString(r.getInteger(R.integer.default_game_preamble_time));


        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);

        // Add 'general' preferences.

        addPreferencesFromResource(R.xml.pref_general);
        bindPreferenceSummaryToValue(findPreference("enable_sound"));
        bindPreferenceSummaryToValue(findPreference("enable_custom_match_length"));
        Preference custom_length = findPreference("custom_game_length");
        Preference match_preamble_time = findPreference("match_preamble_time");
        String summary_preamble_time = "Game preamble is " +
                prefs.getString("match_preamble_time", default_preamble)+ " seconds.";
        match_preamble_time.setSummary(summary_preamble_time);
        bindPreferenceSummaryToValue(match_preamble_time);

        String game_length_summary = "Game length is " +
                prefs.getString("custom_game_length", default_match_length) + " minutes.";
        custom_length.setSummary(game_length_summary);
        bindPreferenceSummaryToValue(custom_length);
    }

    /** {@inheritDoc} */
    @Override
    public boolean onIsMultiPane() {
        return isXLargeTablet(this) && !isSimplePreferences(this);
    }

    /**
     * Helper method to determine if the device has an extra-large screen. For
     * example, 10" tablets are extra-large.
     */
    private static boolean isXLargeTablet(Context context) {
        return (context.getResources().getConfiguration().screenLayout
        & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
    }

    /**
     * Determines whether the simplified settings UI should be shown. This is
     * true if this is forced via {@link #ALWAYS_SIMPLE_PREFS}, or the device
     * doesn't have newer APIs like {@link PreferenceFragment}, or the device
     * doesn't have an extra-large screen. In these cases, a single-pane
     * "simplified" settings UI should be shown.
     */
    private static boolean isSimplePreferences(Context context) {
        return true;
    }


    /**
     * A preference value change listener that updates the preference's summary
     * to reflect its new value.
     */
    private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object value) {
            Log.d(TAG, "Setting changed with key: " + preference.getKey());
            String stringValue = value.toString();
            if(preference.getKey().equals("update_interval")) {
                preference.setSummary("Timer update interval is " + stringValue + " milliseconds.");
            }
            else if(preference.getKey().equals("custom_game_length")) {
                preference.setSummary("Custom game length is " + stringValue + " minutes.");
            }
            else if(preference.getKey().equals("match_preamble_time")) {
                preference.setSummary("Game preamble is " + stringValue + " seconds.");
            }
            else {
                // For all other preferences, set the summary to the value's
                // simple string representation.
                preference.setSummary(stringValue);
            }
            return true;
        }
    };

    /**
     * Binds a preference's summary to its value. More specifically, when the
     * preference's value is changed, its summary (line of text below the
     * preference title) is updated to reflect the value. The summary is also
     * immediately updated upon calling this method. The exact display format is
     * dependent on the type of preference.
     *
     * @see #sBindPreferenceSummaryToValueListener
     */
    private static void bindPreferenceSummaryToValue(Preference preference) {
        // Set the listener to watch for value changes.
        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);

        // Trigger the listener immediately with the preference's
        // current value.
        /*
        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
                PreferenceManager
                        .getDefaultSharedPreferences(preference.getContext())
                        .getString(preference.getKey(), ""));
                        */
    }

}

Java Source Code List

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