mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-08-24 16:21:16 +02:00
102 lines
3.8 KiB
Java
102 lines
3.8 KiB
Java
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package nodomain.freeyourgadget.gadgetbridge.activities;
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import android.os.Bundle;
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import android.preference.ListPreference;
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import android.preference.Preference;
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import android.preference.PreferenceActivity;
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import android.preference.PreferenceManager;
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import android.support.v4.app.NavUtils;
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import android.util.Log;
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import android.view.MenuItem;
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public class AbstractSettingsActivity extends PreferenceActivity {
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private static final String TAG = "AbstractSettingsAct";
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@Override
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protected void onPostCreate(Bundle savedInstanceState) {
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super.onPostCreate(savedInstanceState);
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getActionBar().setDisplayHomeAsUpEnabled(true);
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for (String prefKey : getPreferenceKeysWithSummary()) {
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final Preference pref = findPreference(prefKey);
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if (pref != null) {
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bindPreferenceSummaryToValue(pref);
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} else {
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Log.e(TAG, "Unknown preference key: " + prefKey + ", unable to display value.");
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}
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}
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}
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/**
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* Subclasses should reimplement this to return the keys of those
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* preferences which should print its values as a summary below the
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* preference name.
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*/
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protected String[] getPreferenceKeysWithSummary() {
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return new String[0];
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}
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/**
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* A preference value change listener that updates the preference's summary
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* to reflect its new value.
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*/
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private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
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@Override
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public boolean onPreferenceChange(Preference preference, Object value) {
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String stringValue = value.toString();
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if (preference instanceof ListPreference) {
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// For list preferences, look up the correct display value in
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// the preference's 'entries' list.
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ListPreference listPreference = (ListPreference) preference;
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int index = listPreference.findIndexOfValue(stringValue);
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// Set the summary to reflect the new value.
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preference.setSummary(
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index >= 0
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? listPreference.getEntries()[index]
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: null);
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} else {
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// For all other preferences, set the summary to the value's
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// simple string representation.
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preference.setSummary(stringValue);
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}
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return true;
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}
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};
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/**
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* Binds a preference's summary to its value. More specifically, when the
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* preference's value is changed, its summary (line of text below the
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* preference title) is updated to reflect the value. The summary is also
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* immediately updated upon calling this method. The exact display format is
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* dependent on the type of preference.
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*
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* @see #sBindPreferenceSummaryToValueListener
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*/
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private static void bindPreferenceSummaryToValue(Preference preference) {
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// Set the listener to watch for value changes.
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preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
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// Trigger the listener immediately with the preference's
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// current value.
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sBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
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PreferenceManager
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.getDefaultSharedPreferences(preference.getContext())
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.getString(preference.getKey(), ""));
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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switch (item.getItemId()) {
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case android.R.id.home:
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NavUtils.navigateUpFromSameTask(this);
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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}
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