android.preference.SwitchPreference#isChecked ( )源码实例Demo

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.xml.settings);

    // Make sure the autoplay position preference is enabled iff autoplay is
    final SwitchPreference autoplayPref = (SwitchPreference) findPreference(getString(R.string.settings_autoplay_key));
    final SwitchPreference autoplayPositionPref = (SwitchPreference) findPreference(getString(R.string.settings_autoplay_restart_key));

    // This is needed for cases where autoplay was checked while a previous version of
    // AudioAnchor was installed
    if (autoplayPref.isChecked()) {
        autoplayPositionPref.setEnabled(true);
    } else {
        autoplayPositionPref.setEnabled(false);
    }

    initSummary(getPreferenceScreen());
}
 

public void initInLineAction(SwitchPreference switchPref) {
    switchPref.setChecked(true);
    mActionOn = switchPref.isChecked();
    switchPref.setOnPreferenceChangeListener(
            new OnPreferenceChangeListener() {
                @Override
                public boolean onPreferenceChange(Preference preference, Object newValue) {
                    mActionOn = (Boolean) newValue;
                    return true;
                }
            });
}
 

public void initAvatar(SwitchPreference switchPref) {
    switchPref.setChecked(true);
    mAvatarOn = switchPref.isChecked();
    switchPref.setOnPreferenceChangeListener(
            new OnPreferenceChangeListener() {
                @Override
                public boolean onPreferenceChange(Preference preference, Object newValue) {
                    mAvatarOn = (Boolean) newValue;
                    return true;
                }
            });
}
 

private void toggleOver18Dependants(boolean flag){
    SwitchPreference labelPref = (SwitchPreference) getPreferenceManager().findPreference(SettingsActivity.general_label_nsfw);
    if(labelPref.isChecked() != flag){
        labelPref.setChecked(flag);
    }
    SwitchPreference prevPref = (SwitchPreference) getPreferenceManager().findPreference(SettingsActivity.general_preview_nsfw);
    if(prevPref.isChecked() != flag){
        prevPref.setChecked(flag);
    }
}
 

private void commitLightThemeOrDarkThemeChanges() {
    SwitchPreference preference = (SwitchPreference) getPreference(0);
    SharedPreferences.Editor settingsEditor = mGameSettings.edit();
    String newTheme = preference.isChecked() ? "custom_light" : "custom";
    if (!mGameSettings.getString("theme", "opensudoku").equals(newTheme)) {
        settingsEditor.putString("theme", newTheme);
    }
    settingsEditor.apply();
    ThemeUtils.sTimestampOfLastThemeUpdate = System.currentTimeMillis();
    callChangeListener(null);
}
 

@Override
public void onCreate(final Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.layout.stats_widget_settings);
    int defaultAppsNo = WIDGET_3X3_DEFAULT_APPSNO;
    int defaultAppsNoLs = WIDGET_3X3_DEFAULT_APPSNO_LS;

    SharedPreferences mPrefs = prefs.prefsGet();

    divider_preference = (CheckBoxPreference)findPreference(Settings.DIVIDER_PREFERENCE);
    divider_preference.setChecked(mPrefs.getBoolean(Settings.DIVIDER_PREFERENCE, Settings.DIVIDER_DEFAULT));
    divider_preference.setOnPreferenceChangeListener(changeListener);

    rounded_corners_preference = (CheckBoxPreference)findPreference(Settings.ROUNDED_CORNERS_PREFERENCE);
    rounded_corners_preference.setChecked(mPrefs.getBoolean(Settings.ROUNDED_CORNERS_PREFERENCE, Settings.ROUNDED_CORNERS_DEFAULT));
    rounded_corners_preference.setOnPreferenceChangeListener(changeListener);

    apps_by_widget_size_preference = (SwitchPreference)findPreference(Settings.APPS_BY_WIDGET_SIZE_PREFERENCE);
    apps_by_widget_size_preference.setChecked(mPrefs.getBoolean(Settings.APPS_BY_WIDGET_SIZE_PREFERENCE, Settings.APPS_BY_WIDGET_SIZE_DEFAULT));
    apps_by_widget_size_preference.setOnPreferenceChangeListener(changeListener);

    background_color_preference = (ColorPickerPreference) findPreference(Settings.BACKGROUND_COLOR_PREFERENCE);
    int intColor = mPrefs.getInt(Settings.BACKGROUND_COLOR_PREFERENCE, Settings.BACKGROUND_COLOR_DEFAULT);
    String hexColor = String.format("#%08x", (intColor));
    background_color_preference.setSummary(hexColor);
    background_color_preference.setOnPreferenceChangeListener(changeListener);

    appnos_preference = (UpdatingListPreference)findPreference(Settings.STATS_WIDGET_APPSNO_PREFERENCE);
    appnos_preference.setValue(mPrefs.getString(extras == null ? Settings.STATS_WIDGET_APPSNO_PREFERENCE : Integer.toString(defaultAppsNo),
            Integer.toString(defaultAppsNo)));
    appnos_preference.setOnPreferenceChangeListener(changeListener);
    if (apps_by_widget_size_preference.isChecked()) {
        appnos_preference.setSummary(R.string.automatic_appsno);
    }

    appnos_ls_preference = (UpdatingListPreference)findPreference(Settings.STATS_WIDGET_APPSNO_LS_PREFERENCE);
    appnos_ls_preference.setValue(mPrefs.getString(extras == null ? Settings.STATS_WIDGET_APPSNO_LS_PREFERENCE : Integer.toString(defaultAppsNoLs),
            Integer.toString(defaultAppsNoLs)));
    appnos_ls_preference.setOnPreferenceChangeListener(changeListener);
    if (apps_by_widget_size_preference.isChecked()) {
        appnos_ls_preference.setSummary(R.string.automatic_appsno);
    }

    alignment_preference = (UpdatingListPreference)findPreference(Settings.ALIGNMENT_PREFERENCE);
    alignment_preference.setValue(mPrefs.getString(Settings.ALIGNMENT_PREFERENCE,
            Integer.toString(Settings.ALIGNMENT_DEFAULT)));
    alignment_preference.setOnPreferenceChangeListener(changeListener);
}
 

@Override
public void onCreate(final Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.layout.apps_widget_settings);
    int defaultAppsNo = APPS_WIDGET_DEFAULT_APPSNO;
    int defaultAppsNoLs = APPS_WIDGET_DEFAULT_APPSNO_LS;

    SharedPreferences mPrefs = prefs.prefsGet();

    apps_by_widget_size_preference = (SwitchPreference)findPreference(Settings.APPS_BY_WIDGET_SIZE_PREFERENCE);
    apps_by_widget_size_preference.setChecked(mPrefs.getBoolean(Settings.APPS_BY_WIDGET_SIZE_PREFERENCE, Settings.APPS_BY_WIDGET_SIZE_DEFAULT));
    apps_by_widget_size_preference.setOnPreferenceChangeListener(changeListener);

    background_color_preference = (ColorPickerPreference) findPreference(Settings.BACKGROUND_COLOR_PREFERENCE);
    int intColor = mPrefs.getInt(Settings.BACKGROUND_COLOR_PREFERENCE, Settings.BACKGROUND_COLOR_DEFAULT);
    String hexColor = String.format("#%08x", (intColor));
    background_color_preference.setSummary(hexColor);
    background_color_preference.setOnPreferenceChangeListener(changeListener);

    appnos_preference = (UpdatingListPreference)findPreference(Settings.STATS_WIDGET_APPSNO_PREFERENCE);
    appnos_preference.setValue(mPrefs.getString(extras == null ? Settings.STATS_WIDGET_APPSNO_PREFERENCE : Integer.toString(defaultAppsNo),
            Integer.toString(defaultAppsNo)));
    appnos_preference.setOnPreferenceChangeListener(changeListener);
    if (apps_by_widget_size_preference.isChecked()) {
        appnos_preference.setSummary(R.string.automatic_appsno);
    }

    appnos_ls_preference = (UpdatingListPreference)findPreference(Settings.STATS_WIDGET_APPSNO_LS_PREFERENCE);
    appnos_ls_preference.setValue(mPrefs.getString(extras == null ? Settings.STATS_WIDGET_APPSNO_LS_PREFERENCE : Integer.toString(defaultAppsNoLs),
            Integer.toString(defaultAppsNoLs)));
    appnos_ls_preference.setOnPreferenceChangeListener(changeListener);
    if (apps_by_widget_size_preference.isChecked()) {
        appnos_ls_preference.setSummary(R.string.automatic_appsno);
    }

    weighted_recents_preference = (CheckBoxPreference)findPreference(Settings.WEIGHTED_RECENTS_PREFERENCE);
    weighted_recents_preference.setChecked(mPrefs.getBoolean(Settings.WEIGHTED_RECENTS_PREFERENCE, Settings.WEIGHTED_RECENTS_DEFAULT));
    weighted_recents_preference.setOnPreferenceChangeListener(changeListener);

    weight_priority_preference = (UpdatingListPreference)findPreference(Settings.WEIGHT_PRIORITY_PREFERENCE);
    weight_priority_preference.setValue(mPrefs.getString(Settings.WEIGHT_PRIORITY_PREFERENCE, Integer.toString(Settings.WEIGHT_PRIORITY_DEFAULT)));
    weight_priority_preference.setOnPreferenceChangeListener(changeListener);

    colorize_preference = (CheckBoxPreference)findPreference(Settings.COLORIZE_PREFERENCE);
    colorize_preference.setChecked(mPrefs.getBoolean(Settings.COLORIZE_PREFERENCE, Settings.COLORIZE_DEFAULT));
    colorize_preference.setOnPreferenceChangeListener(changeListener);

    ignore_pinned_preference = (CheckBoxPreference)findPreference(Settings.IGNORE_PINNED_PREFERENCE);
    ignore_pinned_preference.setChecked(mPrefs.getBoolean(Settings.IGNORE_PINNED_PREFERENCE, Settings.IGNORE_PINNED_DEFAULT));
    ignore_pinned_preference.setOnPreferenceChangeListener(changeListener);

    icon_color_preference = (ColorPickerPreference) findPreference(Settings.ICON_COLOR_PREFERENCE);
    int intColor2 = mPrefs.getInt(Settings.ICON_COLOR_PREFERENCE, Settings.ICON_COLOR_DEFAULT);
    String hexColor2 = String.format("#%08x", (intColor2));
    icon_color_preference.setSummary(hexColor2);
    icon_color_preference.setOnPreferenceChangeListener(changeListener);

    rounded_corners_preference = (CheckBoxPreference)findPreference(Settings.ROUNDED_CORNERS_PREFERENCE);
    rounded_corners_preference.setChecked(mPrefs.getBoolean(Settings.ROUNDED_CORNERS_PREFERENCE, Settings.ROUNDED_CORNERS_DEFAULT));
    rounded_corners_preference.setOnPreferenceChangeListener(changeListener);

    icon_size_preference = (UpdatingListPreference)findPreference(Settings.ICON_SIZE_PREFERENCE);
    icon_size_preference.setValue(mPrefs.getString(Settings.ICON_SIZE_PREFERENCE, Integer.toString(Settings.ICON_SIZE_DEFAULT)));
    icon_size_preference.setOnPreferenceChangeListener(changeListener);

    alignment_preference = (UpdatingListPreference)findPreference(Settings.ALIGNMENT_PREFERENCE);
    alignment_preference.setValue(mPrefs.getString(Settings.ALIGNMENT_PREFERENCE,
            Integer.toString(Settings.ALIGNMENT_DEFAULT)));
    alignment_preference.setOnPreferenceChangeListener(changeListener);
}