Java PreferenceScreen.getPreferenceCount方法代碼示例

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
@Override
public void onCreatePreferences(Bundle bundle, String s) {
    // Add 'general' preferences, defined in the XML file
    addPreferencesFromResource(R.xml.pref_general);

    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen prefScreen = getPreferenceScreen();
    int count = prefScreen.getPreferenceCount();
    for (int i = 0; i < count; i++) {
        Preference p = prefScreen.getPreference(i);
        if (!(p instanceof CheckBoxPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }
    }
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
@Override
public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
    addPreferencesFromResource(R.xml.pref_app);


    /* Get the preference screen, get the number of preferences and iterate through
       all of the preferences if it is not a checkbox preference, call the setSummary method
       passing in a preference and the value of the preference*/

    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen preferenceScreen = getPreferenceScreen();
    int prefCount = preferenceScreen.getPreferenceCount();

    for (int i = 0; i < prefCount; i++) {
        Preference p = preferenceScreen.getPreference(i);
        if (!(p instanceof CheckBoxPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }
    }
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
@Override
public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
    addPreferencesFromResource(R.xml.preferences);

    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen prefScreen = getPreferenceScreen();
    int count = prefScreen.getPreferenceCount();


    // Go through all of the preferences, and set up their preference summary.
    for (int i = 0; i < count; i++) {
        Preference p = prefScreen.getPreference(i);
        //don't need to set up preference summaries for checkbox preferences because
        // they are already set up in xml using summaryOff and summary On
        if (!(p instanceof CheckBoxPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }

    }
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
@Override
public void onCreatePreferences(Bundle bundle, String s) {

    // Add visualizer preferences, defined in the XML file in res->xml->pref_visualizer
    addPreferencesFromResource(R.xml.pref_visualizer);

    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen prefScreen = getPreferenceScreen();
    int count = prefScreen.getPreferenceCount();

    // Go through all of the preferences, and set up their preference summary.
    for (int i = 0; i < count; i++) {
        Preference p = prefScreen.getPreference(i);
        // You don't need to set up preference summaries for checkbox preferences because
        // they are already set up in xml using summaryOff and summary On
        if (!(p instanceof CheckBoxPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }
    }
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
@Override
public void onCreatePreferences(Bundle bundle, String s) {

    // Add visualizer preferences, defined in the XML file in res->xml->pref_visualizer
    addPreferencesFromResource(R.xml.pref_visualizer);

    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen prefScreen
            = getPreferenceScreen();
    int count = prefScreen.getPreferenceCount();

    // Go through all of the preferences, and set up their preference summary.
    for (int i = 0; i < count; i++) {
        Preference p = prefScreen.getPreference(i);
        // You don't need to set up preference summaries for checkbox preferences because
        // they are already set up in xml using summaryOff and summary On
        if (!(p instanceof CheckBoxPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }
    }
    // TODO (3) Add the OnPreferenceChangeListener specifically to the EditTextPreference
    Preference preference = findPreference(getString(R.string.pref_size_key));
    preference.setOnPreferenceChangeListener(this);
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
@Override
public void onCreatePreferences(Bundle bundle, String s) {

    // Add preferences, defined in the XML file in res->xml->preferences.xml
    addPreferencesFromResource(R.xml.preferences);

    //set the summaries for the different preferences for the first time
    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen prefScreen = getPreferenceScreen();
    int count = prefScreen.getPreferenceCount();
    for (int i = 0; i < count; i++) {
        Preference p = prefScreen.getPreference(i);
        // You don't need to set up preference summaries for checkbox preferences because
        // they are already set up in xml using summaryOff and summary On
        if (!(p instanceof CheckBoxPreference) && !(p instanceof MultiSelectListPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }
    }

    //attach listener to check for changes in the radius preference
    //because it should only contain only doubles and the code has to enforce this
    Preference preference = findPreference(getString(R.string.pref_radius_key));
    preference.setOnPreferenceChangeListener(this);
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
@Override
public void onCreatePreferences(Bundle bundle, String s) {
    /* Add 'general' preferences, defined in the XML file */
    addPreferencesFromResource(R.xml.pref_general);

    // COMPLETED (9) Set the preference summary on each preference that isn't a CheckBoxPreference
    SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
    PreferenceScreen prefScreen = getPreferenceScreen();
    int count = prefScreen.getPreferenceCount();
    for (int i = 0; i < count; i++) {
        Preference p = prefScreen.getPreference(i);
        if (!(p instanceof CheckBoxPreference)) {
            String value = sharedPreferences.getString(p.getKey(), "");
            setPreferenceSummary(p, value);
        }
    }
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
private void setupLocalizedText() {
    Map<String, String> prefToTitleMap = getPrefKeyTitleMap();
    if (prefToTitleMap != null) {
        PreferenceScreen screen = getPreferenceScreen();
        for (int i = 0; i < screen.getPreferenceCount(); i++) {
            String key = screen.getPreference(i).getKey();
            if (prefToTitleMap.containsKey(key)) {
                try {
                    String localizedString = Localization.get(prefToTitleMap.get(key));
                    screen.getPreference(i).setTitle(localizedString);
                } catch (NoLocalizedTextException nle) {
                    Log.w(TAG, "Unable to localize: " + prefToTitleMap.get(key));
                }
            }
        }
    }
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
private ArrayList<String> getEnabledMimics() {
    ArrayList<String> enabledMimics = new ArrayList<>();
    PreferenceScreen preferenceScreen = getPreferenceManager().getPreferenceScreen();
    for (int i = 0; i < preferenceScreen.getPreferenceCount(); i++) {
        CheckBoxPreference preference = (CheckBoxPreference)preferenceScreen.getPreference(i);
        if (preference.isChecked()) {
            enabledMimics.add(preference.getKey());
        }
    }
    return enabledMimics;
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
private Preference[] getOnScreenPrefs() {
    PreferenceScreen prefScreen = getPreferenceScreen();
    Preference[] prefs = new Preference[prefScreen.getPreferenceCount()];
    for (int i = 0; i < prefScreen.getPreferenceCount(); i++) {
        prefs[i] = prefScreen.getPreference(i);
    }
    return prefs;
}
 

import android.support.v7.preference.PreferenceScreen; //導入方法依賴的package包/類
private void initSummary(Preference pref) {
    if (pref instanceof PreferenceScreen) {
        final PreferenceScreen screen = (PreferenceScreen) pref;
        for (int i = 0; i < screen.getPreferenceCount(); i++)
            initSummary(screen.getPreference(i));
    } else if (pref instanceof PreferenceCategory) {
        final PreferenceCategory category = (PreferenceCategory) pref;
        for (int i = 0; i < category.getPreferenceCount(); i++)
            initSummary(category.getPreference(i));
    } else
        updatePrefSummary(pref);
}