Java PreferenceCategory.getPreference方法代码示例

import android.preference.PreferenceCategory; //导入方法依赖的package包/类
/**
 * Iterate through debug buttons, adding a special debug preference click
 * listener to each of them.
 */
protected void connectDebugButtons() {
  // Separate listener to really separate debug logic from main code paths.
  final OnPreferenceClickListener listener = new DebugPreferenceClickListener();

  // We don't want to use Android resource strings for debug UI, so we just
  // use the keys throughout.
  final PreferenceCategory debugCategory = (PreferenceCategory) ensureFindPreference("debug_category");
  debugCategory.setTitle(debugCategory.getKey());

  for (int i = 0; i < debugCategory.getPreferenceCount(); i++) {
    final Preference button = debugCategory.getPreference(i);
    button.setTitle(button.getKey()); // Not very friendly, but this is for debugging only!
    button.setOnPreferenceClickListener(listener);
  }
}
 

import android.preference.PreferenceCategory; //导入方法依赖的package包/类
private void setupPeriodicControls() {
    final PreferenceCategory periodicSpeechPrefs = (PreferenceCategory) findPreference(DroidPlannerPrefs.PREF_TTS_PERIODIC);
    ListPreference periodic = ((ListPreference) periodicSpeechPrefs.getPreference(0));
    periodic.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, final Object newValue) {
            // Broadcast the event locally on update.
            // A handler is used to that the current action has the time to
            // return, and store the value in the preferences.
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    lbm.sendBroadcast(new Intent(ACTION_UPDATED_STATUS_PERIOD)
                            .putExtra(EXTRA_UPDATED_STATUS_PERIOD, (String) newValue));

                    setupPeriodicControls();
                }
            });
            return true;
        }
    });

    int val = Integer.parseInt(periodic.getValue());

    final boolean isEnabled = val != 0;
    if (isEnabled) {
        periodic.setSummary(getString(R.string.pref_tts_status_every) + " " + val + " "
                + getString(R.string.pref_tts_seconds));
    } else {
        periodic.setSummary(R.string.pref_tts_periodic_status_disabled);
    }

    for (int i = 1; i < periodicSpeechPrefs.getPreferenceCount(); i++) {
        periodicSpeechPrefs.getPreference(i).setEnabled(isEnabled);
    }
}
 

import android.preference.PreferenceCategory; //导入方法依赖的package包/类
private void setupPeriodicControls() {
    final PreferenceCategory periodicSpeechPrefs = (PreferenceCategory) findPreference(getString(R.string.pref_tts_periodic_key));
    ListPreference periodic = ((ListPreference) periodicSpeechPrefs.getPreference(0));
    periodic.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, final Object newValue) {
            // Broadcast the event locally on update.
            // A handler is used to that the current action has the time to
            // return,
            // and store the value in the preferences.
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(
                            new Intent(ACTION_UPDATED_STATUS_PERIOD).putExtra(
                                    EXTRA_UPDATED_STATUS_PERIOD, (String) newValue));

                    setupPeriodicControls();
                }
            });
            return true;
        }
    });

    int val = Integer.parseInt(periodic.getValue());

    final boolean isEnabled = val != 0;
    if (isEnabled) {
        periodic.setSummary(getString(R.string.pref_tts_status_every) + " " + val + " "
                + getString(R.string.pref_tts_seconds));
    } else {
        periodic.setSummary(R.string.pref_tts_periodic_status_disabled);
    }

    for (int i = 1; i < periodicSpeechPrefs.getPreferenceCount(); i++) {
        periodicSpeechPrefs.getPreference(i).setEnabled(isEnabled);
    }
}
 

import android.preference.PreferenceCategory; //导入方法依赖的package包/类
private void setupPeriodicControls() {
    final PreferenceCategory periodicSpeechPrefs = (PreferenceCategory) findPreference(getString(R.string.pref_tts_periodic_key));
    ListPreference periodic = ((ListPreference) periodicSpeechPrefs.getPreference(0));
    periodic.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, final Object newValue) {
            // Broadcast the event locally on update.
            // A handler is used to that the current action has the time to
            // return, and store the value in the preferences.
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    lbm.sendBroadcast(new Intent(ACTION_UPDATED_STATUS_PERIOD)
                            .putExtra(EXTRA_UPDATED_STATUS_PERIOD, (String) newValue));

                    setupPeriodicControls();
                }
            });
            return true;
        }
    });

    int val = Integer.parseInt(periodic.getValue());

    final boolean isEnabled = val != 0;
    if (isEnabled) {
        periodic.setSummary(getString(R.string.pref_tts_status_every) + " " + val + " "
                + getString(R.string.pref_tts_seconds));
    } else {
        periodic.setSummary(R.string.pref_tts_periodic_status_disabled);
    }

    for (int i = 1; i < periodicSpeechPrefs.getPreferenceCount(); i++) {
        periodicSpeechPrefs.getPreference(i).setEnabled(isEnabled);
    }
}
 

import android.preference.PreferenceCategory; //导入方法依赖的package包/类
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Bind the view with presenter
    presenter = new Presenter(this);
    presenter.getInitialize(getArguments());

    PreferenceScreen preferenceScreen = getPreferenceScreen();

    //START loop to set listener on Preferences
    // Set "this" to listen for all preference click/change listener for all preferences
    for (int i = 0, size = preferenceScreen.getPreferenceCount(); i < size; i++) {
        Preference preference = preferenceScreen.getPreference(i);
        preference.setOnPreferenceClickListener(this);
        preference.setOnPreferenceChangeListener(this);

        // If this is a preference category, make sure to go through all the subpreferences as well.
        if (preference instanceof PreferenceCategory) {
            Stack<PreferenceCategory> stack = new Stack<>();
            stack.push((PreferenceCategory) preference);

            do {
                PreferenceCategory category = stack.pop();
                for (int x = 0, xSize = category.getPreferenceCount(); x < xSize; x++) {
                    Preference subPref = category.getPreference(x);
                    subPref.setOnPreferenceChangeListener(this);
                    subPref.setOnPreferenceClickListener(this);

                    if (subPref instanceof PreferenceCategory) {
                        stack.push((PreferenceCategory) subPref);
                    }
                }
            }
            while (!stack.isEmpty());
        }
    } //END loop to set listener on Preferences

    //This will update the state of the Settings view
    presenter.handlePreferences();
}
 

import android.preference.PreferenceCategory; //导入方法依赖的package包/类
private void updateInfoPref(PreferenceCategory category, int index, int helpId, boolean isOn) {
  TwoStatePreference pref = (TwoStatePreference) category.getPreference(index);
  pref.setChecked(isOn);
  pref.setOnPreferenceChangeListener(this);
  pref.setIntent(getHelpIntent(helpId));
}