Java 类android.support.v7.preference.SeekBarPreference 实例源码

private void setMax(AudioManager audioManager, int catID, int key, int index) {
    PreferenceCategory cat = (PreferenceCategory)findPreference(getString(catID));
    ((SeekBarPreference)cat.findPreference(getString(key))).setMax(audioManager.getStreamMaxVolume(index));
}

@Override
public void onCreatePreferences(Bundle bundle, String s) {

    getPreferenceManager().setSharedPreferencesName(getString(R.string.app_name));

    addPreferencesFromResource(R.xml.app_preferences);

    SeekBarPreference preference = (SeekBarPreference) findPreference("sound_volume");

    int maxVolume = ((TalkActivity) getContext()).getMaxVolume();
    preference.setMax(maxVolume);

    Session session = ((App) getActivity().getApplication()).getSession();

    if (!session.isDefaultValueSet()) {
        preference.setValue(maxVolume);
        session.setDefaultSoundVolume(true);
    }
}

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

    final SettingsManager pref = new SettingsManager(getActivity().getApplicationContext());

    String keyAutostart = getString(R.string.pref_key_autostart);
    SwitchPreferenceCompat autostart = (SwitchPreferenceCompat) findPreference(keyAutostart);
    autostart.setChecked(pref.getBoolean(keyAutostart, SettingsManager.Default.autostart));
    bindOnPreferenceChangeListener(autostart);

    String keyKeepAlive = getString(R.string.pref_key_keep_alive);
    SwitchPreferenceCompat keepAlive = (SwitchPreferenceCompat) findPreference(keyKeepAlive);
    keepAlive.setChecked(pref.getBoolean(keyKeepAlive, SettingsManager.Default.keepAlive));
    bindOnPreferenceChangeListener(keepAlive);

    String keyShutdownComplete = getString(R.string.pref_key_shutdown_downloads_complete);
    SwitchPreferenceCompat shutdownComplete = (SwitchPreferenceCompat) findPreference(keyShutdownComplete);
    shutdownComplete.setChecked(pref.getBoolean(keyShutdownComplete, SettingsManager.Default.shutdownDownloadsComplete));
    bindOnPreferenceChangeListener(shutdownComplete);

    String keyCpuSleep = getString(R.string.pref_key_cpu_do_not_sleep);
    SwitchPreferenceCompat cpuSleep = (SwitchPreferenceCompat) findPreference(keyCpuSleep);
    cpuSleep.setChecked(pref.getBoolean(keyCpuSleep, SettingsManager.Default.cpuDoNotSleep));
    bindOnPreferenceChangeListener(cpuSleep);

    String keyOnlyCharging = getString(R.string.pref_key_download_and_upload_only_when_charging);
    SwitchPreferenceCompat onlyCharging = (SwitchPreferenceCompat) findPreference(keyOnlyCharging);
    onlyCharging.setChecked(pref.getBoolean(keyOnlyCharging, SettingsManager.Default.onlyCharging));
    bindOnPreferenceChangeListener(onlyCharging);

    String keyBatteryControl = getString(R.string.pref_key_battery_control);
    SwitchPreferenceCompat batteryControl = (SwitchPreferenceCompat) findPreference(keyBatteryControl);
    batteryControl.setSummary(String.format(getString(R.string.pref_battery_control_summary),
                              Utils.getDefaultBatteryLowLevel()));
    batteryControl.setChecked(pref.getBoolean(keyBatteryControl, SettingsManager.Default.batteryControl));
    bindOnPreferenceChangeListener(batteryControl);

    String keyCustomBatteryControl = getString(R.string.pref_key_custom_battery_control);
    SwitchPreferenceCompat customBatteryControl = (SwitchPreferenceCompat) findPreference(keyCustomBatteryControl);
    customBatteryControl.setSummary(String.format(getString(R.string.pref_custom_battery_control_summary),
            Utils.getDefaultBatteryLowLevel()));
    customBatteryControl.setChecked(pref.getBoolean(keyCustomBatteryControl, SettingsManager.Default.customBatteryControl));
    bindOnPreferenceChangeListener(customBatteryControl);

    String keyCustomBatteryControlValue = getString(R.string.pref_key_custom_battery_control_value);
    SeekBarPreference customBatteryControlValue = (SeekBarPreference) findPreference(keyCustomBatteryControlValue);
    customBatteryControlValue.setValue(pref.getInt(keyCustomBatteryControlValue, Utils.getDefaultBatteryLowLevel()));
    customBatteryControlValue.setMin(10);
    customBatteryControlValue.setMax(90);
    bindOnPreferenceChangeListener(customBatteryControlValue);

    String keyWifiOnly = getString(R.string.pref_key_wifi_only);
    SwitchPreferenceCompat wifiOnly = (SwitchPreferenceCompat) findPreference(keyWifiOnly);
    wifiOnly.setChecked(pref.getBoolean(keyWifiOnly, SettingsManager.Default.wifiOnly));
    bindOnPreferenceChangeListener(wifiOnly);
}