Android Open Source - Weather Settings Activity

• Back to Weather/forecast  ↑

From Project

Back to project page Weather.

License

The source code is released under:

Apache License

Java Source Code

package com.volitic.weather;
/*www .  j ava 2 s .c  om*/
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.SwitchPreference;
import android.widget.CursorAdapter;

public class SettingsActivity extends PreferenceActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_settings);

        if (savedInstanceState == null) {
            getFragmentManager().beginTransaction()
                    .add(R.id.settings_container, new SettingsFragment())
                    .commit();
        }
    }

    /**
     * A preferences fragment for the user to configure settings.
     */
    public static class SettingsFragment extends PreferenceFragment {

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            // Load the preferences from an XML resource
            addPreferencesFromResource(R.xml.preferences);

            // Bind the summaries to be updated on value change.
            bindPreferenceSummaryToValue(findPreference("display_units"));
            bindPreferenceSummaryToValue(findPreference("set_location_manual"));
            bindPreferenceSummaryToValue(findPreference("allow_mobile_data"));
            bindPreferenceSummaryToValue(findPreference("location_manual"));
            bindPreferenceSummaryToValue(findPreference("timezone_utc_offset"));

        }

        /**
         * When a preference is changed, update the summary text of that preference to reflect the
         * new value.
         */
        private static void bindPreferenceSummaryToValue(Preference preference) {

            // make sure the preference exists
            if (preference == null){
                return;
            }

            // register the change listener
            preference.setOnPreferenceChangeListener(preferenceValueChangeListener);


            // Trigger the listener immediately to initialize the summaries
            // to their current value.
            if( preference instanceof SwitchPreference ){
                preferenceValueChangeListener.onPreferenceChange(preference,
                    PreferenceManager
                            .getDefaultSharedPreferences(preference.getContext())
                            .getBoolean(preference.getKey(), false));
            } else {
                preferenceValueChangeListener.onPreferenceChange(preference,
                        PreferenceManager
                                .getDefaultSharedPreferences(preference.getContext())
                                .getString(preference.getKey(), ""));
            }

        }

        /**
         * A preference value change listener that updates the preference's summary
         * to reflect its new value.
         */
        private static Preference.OnPreferenceChangeListener preferenceValueChangeListener =
                new Preference.OnPreferenceChangeListener() {

            @Override
            public boolean onPreferenceChange(Preference preference, Object value) {

                String stringValue = value.toString();

                String key = preference.getKey();
                if( key != null && key.equals("allow_mobile_data")){
                    //special case
                    if((Boolean)value){
                        preference.setSummary(R.string.mobile_data_allowed);
                    } else {
                        preference.setSummary(R.string.mobile_data_disallowed);
                    }
                } else if (preference instanceof ListPreference) {
                    // For list preferences, look up the correct display value in
                    // the preference's 'entries' list.
                    ListPreference listPreference = (ListPreference) preference;
                    int index = listPreference.findIndexOfValue(stringValue);

                    // Set the summary to reflect the new value.
                    preference.setSummary(
                            index >= 0
                                    ? listPreference.getEntries()[index]
                                    : null);
                } else {
                    // For all other preferences, set the summary to the value's
                    // simple string representation.
                    preference.setSummary(stringValue);
                }
                return true;
            }

        };
    }

}

Java Source Code List

• Back to Weather/forecast  ↑