下面列出了android.preference.Preference#setFragment ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Create a single User Dictionary Preference object, with its parameters set.
* @param localeString The locale for which this user dictionary is for.
* @return The corresponding preference.
*/
protected Preference createUserDictionaryPreference(@Nullable final String localeString) {
final Preference newPref = new Preference(getActivity());
final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION);
if (null == localeString) {
newPref.setTitle(Locale.getDefault().getDisplayName());
} else {
if (localeString.isEmpty()) {
newPref.setTitle(getString(R.string.user_dict_settings_all_languages));
} else {
newPref.setTitle(
LocaleUtils.constructLocaleFromString(localeString).getDisplayName());
}
intent.putExtra("locale", localeString);
newPref.getExtras().putString("locale", localeString);
}
newPref.setIntent(intent);
newPref.setFragment(UserDictionarySettings.class.getName());
return newPref;
}
private void overwriteUserDictionaryPreference(final Preference userDictionaryPreference) {
final Activity activity = getActivity();
final TreeSet<String> localeList = UserDictionaryList.getUserDictionaryLocalesSet(activity);
if (null == localeList) {
// The locale list is null if and only if the user dictionary service is
// not present or disabled. In this case we need to remove the preference.
getPreferenceScreen().removePreference(userDictionaryPreference);
} else if (localeList.size() <= 1) {
userDictionaryPreference.setFragment(UserDictionarySettings.class.getName());
// If the size of localeList is 0, we don't set the locale parameter in the
// extras. This will be interpreted by the UserDictionarySettings class as
// meaning "the current locale".
// Note that with the current code for UserDictionaryList#getUserDictionaryLocalesSet()
// the locale list always has at least one element, since it always includes the current
// locale explicitly. @see UserDictionaryList.getUserDictionaryLocalesSet().
if (localeList.size() == 1) {
final String locale = (String)localeList.toArray()[0];
userDictionaryPreference.getExtras().putString("locale", locale);
}
} else {
userDictionaryPreference.setFragment(UserDictionaryList.class.getName());
}
}
/**
* Create a single User Dictionary Preference object, with its parameters set.
* @param localeString The locale for which this user dictionary is for.
* @return The corresponding preference.
*/
protected Preference createUserDictionaryPreference(@Nullable final String localeString) {
final Preference newPref = new Preference(getActivity());
final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION);
if (null == localeString) {
newPref.setTitle(Locale.getDefault().getDisplayName());
} else {
if (localeString.isEmpty()) {
newPref.setTitle(getString(R.string.user_dict_settings_all_languages));
} else {
newPref.setTitle(
LocaleUtils.constructLocaleFromString(localeString).getDisplayName());
}
intent.putExtra("locale", localeString);
newPref.getExtras().putString("locale", localeString);
}
newPref.setIntent(intent);
newPref.setFragment(UserDictionarySettings.class.getName());
return newPref;
}
private void overwriteUserDictionaryPreference(final Preference userDictionaryPreference) {
final Activity activity = getActivity();
final TreeSet<String> localeList = UserDictionaryList.getUserDictionaryLocalesSet(activity);
if (null == localeList) {
// The locale list is null if and only if the user dictionary service is
// not present or disabled. In this case we need to remove the preference.
getPreferenceScreen().removePreference(userDictionaryPreference);
} else if (localeList.size() <= 1) {
userDictionaryPreference.setFragment(UserDictionarySettings.class.getName());
// If the size of localeList is 0, we don't set the locale parameter in the
// extras. This will be interpreted by the UserDictionarySettings class as
// meaning "the current locale".
// Note that with the current code for UserDictionaryList#getUserDictionaryLocalesSet()
// the locale list always has at least one element, since it always includes the current
// locale explicitly. @see UserDictionaryList.getUserDictionaryLocalesSet().
if (localeList.size() == 1) {
final String locale = (String)localeList.toArray()[0];
userDictionaryPreference.getExtras().putString("locale", locale);
}
} else {
userDictionaryPreference.setFragment(UserDictionaryList.class.getName());
}
}
/**
* Create a single User Dictionary Preference object, with its parameters set.
* @param localeString The locale for which this user dictionary is for.
* @return The corresponding preference.
*/
protected Preference createUserDictionaryPreference(@Nullable final String localeString) {
final Preference newPref = new Preference(getActivity());
final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION);
if (null == localeString) {
newPref.setTitle(Locale.getDefault().getDisplayName());
} else {
if (localeString.isEmpty()) {
newPref.setTitle(getString(R.string.user_dict_settings_all_languages));
} else {
newPref.setTitle(
LocaleUtils.constructLocaleFromString(localeString).getDisplayName());
}
intent.putExtra("locale", localeString);
newPref.getExtras().putString("locale", localeString);
}
newPref.setIntent(intent);
newPref.setFragment(UserDictionarySettings.class.getName());
return newPref;
}
private void overwriteUserDictionaryPreference(final Preference userDictionaryPreference) {
final Activity activity = getActivity();
final TreeSet<String> localeList = UserDictionaryList.getUserDictionaryLocalesSet(activity);
if (null == localeList) {
// The locale list is null if and only if the user dictionary service is
// not present or disabled. In this case we need to remove the preference.
getPreferenceScreen().removePreference(userDictionaryPreference);
} else if (localeList.size() <= 1) {
userDictionaryPreference.setFragment(UserDictionarySettings.class.getName());
// If the size of localeList is 0, we don't set the locale parameter in the
// extras. This will be interpreted by the UserDictionarySettings class as
// meaning "the current locale".
// Note that with the current code for UserDictionaryList#getUserDictionaryLocalesSet()
// the locale list always has at least one element, since it always includes the current
// locale explicitly. @see UserDictionaryList.getUserDictionaryLocalesSet().
if (localeList.size() == 1) {
final String locale = (String)localeList.toArray()[0];
userDictionaryPreference.getExtras().putString("locale", locale);
}
} else {
userDictionaryPreference.setFragment(UserDictionaryList.class.getName());
}
}
/**
* Initializes the Preference based on the state of any policies that may affect it,
* e.g. by showing a managed icon or disabling clicks on the preference.
*
* This should be called once, before the preference is displayed.
*/
public void initPreference(Preference preference) {
if (isPreferenceControlledByPolicy(preference)) {
preference.setIcon(ManagedPreferencesUtils.getManagedByEnterpriseIconId());
if (isPreferenceClickDisabledByPolicy(preference)) {
// Disable the views and prevent the Preference from mucking with the enabled state.
preference.setShouldDisableView(false);
// Prevent default click behavior.
preference.setFragment(null);
preference.setIntent(null);
preference.setOnPreferenceClickListener(null);
}
}
}
private void rebuildProfileList() {
// Add an edit preference for each current Chrome profile.
PreferenceGroup profileCategory = (PreferenceGroup) findPreference(PREF_AUTOFILL_PROFILES);
profileCategory.removeAll();
for (AutofillProfile profile : PersonalDataManager.getInstance().getProfilesForSettings()) {
// Add an item on the current page...
Preference pref = new Preference(getActivity());
pref.setTitle(profile.getFullName());
pref.setSummary(profile.getLabel());
if (profile.getIsLocal()) {
pref.setFragment(AutofillProfileEditor.class.getName());
} else {
pref.setWidgetLayoutResource(R.layout.autofill_server_data_label);
pref.setFragment(AutofillServerProfilePreferences.class.getName());
}
Bundle args = pref.getExtras();
args.putString(AUTOFILL_GUID, profile.getGUID());
profileCategory.addPreference(pref);
}
}
private void rebuildCreditCardList() {
PreferenceGroup profileCategory =
(PreferenceGroup) findPreference(PREF_AUTOFILL_CREDIT_CARDS);
profileCategory.removeAll();
for (CreditCard card : PersonalDataManager.getInstance().getCreditCardsForSettings()) {
// Add an item on the current page...
Preference pref = new Preference(getActivity());
pref.setTitle(card.getObfuscatedNumber());
pref.setSummary(card.getFormattedExpirationDate(getActivity()));
if (card.getIsLocal()) {
pref.setFragment(AutofillLocalCardEditor.class.getName());
} else {
pref.setFragment(AutofillServerCardEditor.class.getName());
pref.setWidgetLayoutResource(R.layout.autofill_server_data_label);
}
Bundle args = pref.getExtras();
args.putString(AUTOFILL_GUID, card.getGUID());
profileCategory.addPreference(pref);
}
}
/**
* Initializes the Preference based on the state of any policies that may affect it,
* e.g. by showing a managed icon or disabling clicks on the preference.
*
* This should be called once, before the preference is displayed.
*/
public void initPreference(Preference preference) {
if (isPreferenceControlledByPolicy(preference)) {
preference.setIcon(ManagedPreferencesUtils.getManagedByEnterpriseIconId());
if (isPreferenceClickDisabledByPolicy(preference)) {
// Disable the views and prevent the Preference from mucking with the enabled state.
preference.setShouldDisableView(false);
// Prevent default click behavior.
preference.setFragment(null);
preference.setIntent(null);
preference.setOnPreferenceClickListener(null);
}
}
}
private void resetList() {
getPreferenceScreen().removeAll();
addPreferencesFromResource(R.xml.usb_chooser_preferences);
if (mPermissionsByObject.isEmpty() && mSearch.isEmpty() && mEmptyView != null) {
mEmptyView.setText(R.string.website_settings_usb_no_devices);
}
for (Pair<ArrayList<UsbInfo>, ArrayList<Website>> entry : mPermissionsByObject.values()) {
Preference preference = new Preference(getActivity());
Bundle extras = preference.getExtras();
extras.putInt(UsbDevicePreferences.EXTRA_CATEGORY, mCategory.toContentSettingsType());
extras.putString(
SingleCategoryPreferences.EXTRA_TITLE, getActivity().getTitle().toString());
extras.putSerializable(UsbDevicePreferences.EXTRA_USB_INFOS, entry.first);
extras.putSerializable(UsbDevicePreferences.EXTRA_SITES, entry.second);
preference.setIcon(R.drawable.settings_usb);
preference.setTitle(entry.first.get(0).getName());
preference.setFragment(UsbDevicePreferences.class.getCanonicalName());
getPreferenceScreen().addPreference(preference);
}
}
private void resetList() {
getPreferenceScreen().removeAll();
addPreferencesFromResource(R.xml.usb_device_preferences);
PreferenceScreen preferenceScreen = getPreferenceScreen();
Preference header = preferenceScreen.findPreference(PREF_OBJECT_NAME);
header.setTitle(mUsbInfo.getName());
header.setOnPreferenceClickListener(this);
for (int i = 0; i < mSites.size(); ++i) {
Website site = mSites.get(i);
Preference preference = new WebsitePreference(getActivity(), site, mCategory);
preference.getExtras().putSerializable(SingleWebsitePreferences.EXTRA_SITE, site);
preference.setFragment(SingleWebsitePreferences.class.getCanonicalName());
preferenceScreen.addPreference(preference);
}
// Force this list to be reloaded if the activity is resumed.
mSites = null;
}
private void overwriteUserDictionaryPreference(final Preference userDictionaryPreference) {
final Activity activity = getActivity();
final TreeSet<String> localeList = UserDictionaryList.getUserDictionaryLocalesSet(activity);
if (null == localeList) {
// The locale list is null if and only if the user dictionary service is
// not present or disabled. In this case we need to remove the preference.
getPreferenceScreen().removePreference(userDictionaryPreference);
} else if (localeList.size() <= 1) {
userDictionaryPreference.setFragment(UserDictionarySettings.class.getName());
// If the size of localeList is 0, we don't set the locale parameter in the
// extras. This will be interpreted by the UserDictionarySettings class as
// meaning "the current locale".
// Note that with the current code for UserDictionaryList#getUserDictionaryLocalesSet()
// the locale list always has at least one element, since it always includes the current
// locale explicitly. @see UserDictionaryList.getUserDictionaryLocalesSet().
if (localeList.size() == 1) {
final String locale = (String)localeList.toArray()[0];
userDictionaryPreference.getExtras().putString("locale", locale);
}
} else {
userDictionaryPreference.setFragment(UserDictionaryList.class.getName());
}
}
private void rebuildCreditCardList() {
PreferenceGroup profileCategory =
(PreferenceGroup) findPreference(PREF_AUTOFILL_CREDIT_CARDS);
profileCategory.removeAll();
for (CreditCard card : PersonalDataManager.getInstance().getCreditCardsForSettings()) {
// Add an item on the current page...
Preference pref = new Preference(getActivity());
pref.setTitle(card.getObfuscatedNumber());
pref.setSummary(card.getFormattedExpirationDate(getActivity()));
if (card.getIsLocal()) {
pref.setFragment(AutofillLocalCardEditor.class.getName());
} else {
pref.setFragment(AutofillServerCardEditor.class.getName());
pref.setWidgetLayoutResource(R.layout.autofill_server_data_label);
}
Bundle args = pref.getExtras();
args.putString(AUTOFILL_GUID, card.getGUID());
profileCategory.addPreference(pref);
}
}
/**
* Initializes the Preference based on the state of any policies that may affect it,
* e.g. by showing a managed icon or disabling clicks on the preference.
*
* This should be called once, before the preference is displayed.
*/
public void initPreference(Preference preference) {
if (isPreferenceControlledByPolicy(preference)) {
preference.setIcon(ManagedPreferencesUtils.getManagedByEnterpriseIconId());
} else if (isPreferenceControlledByCustodian(preference)) {
preference.setIcon(R.drawable.ic_account_child_grey600_36dp);
}
if (isPreferenceClickDisabledByPolicy(preference)) {
// Disable the views and prevent the Preference from mucking with the enabled state.
preference.setShouldDisableView(false);
// Prevent default click behavior.
preference.setFragment(null);
preference.setIntent(null);
preference.setOnPreferenceClickListener(null);
}
}
private void resetList() {
getPreferenceScreen().removeAll();
addPreferencesFromResource(R.xml.usb_chooser_preferences);
if (mPermissionsByObject.isEmpty() && mSearch.isEmpty() && mEmptyView != null) {
mEmptyView.setText(R.string.website_settings_usb_no_devices);
}
for (Pair<ArrayList<UsbInfo>, ArrayList<Website>> entry : mPermissionsByObject.values()) {
Preference preference = new Preference(getActivity());
Bundle extras = preference.getExtras();
extras.putInt(UsbDevicePreferences.EXTRA_CATEGORY, mCategory.toContentSettingsType());
extras.putString(
SingleCategoryPreferences.EXTRA_TITLE, getActivity().getTitle().toString());
extras.putSerializable(UsbDevicePreferences.EXTRA_USB_INFOS, entry.first);
extras.putSerializable(UsbDevicePreferences.EXTRA_SITES, entry.second);
preference.setIcon(R.drawable.settings_usb);
preference.setTitle(entry.first.get(0).getName());
preference.setFragment(UsbDevicePreferences.class.getCanonicalName());
getPreferenceScreen().addPreference(preference);
}
}
private void resetList() {
getPreferenceScreen().removeAll();
addPreferencesFromResource(R.xml.usb_device_preferences);
PreferenceScreen preferenceScreen = getPreferenceScreen();
Preference header = preferenceScreen.findPreference(PREF_OBJECT_NAME);
header.setTitle(mUsbInfo.getName());
header.setOnPreferenceClickListener(this);
for (int i = 0; i < mSites.size(); ++i) {
Website site = mSites.get(i);
Preference preference = new WebsitePreference(getActivity(), site, mCategory);
preference.getExtras().putSerializable(SingleWebsitePreferences.EXTRA_SITE, site);
preference.setFragment(SingleWebsitePreferences.class.getCanonicalName());
preferenceScreen.addPreference(preference);
}
// Force this list to be reloaded if the activity is resumed.
mSites = null;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
PreferenceUtils.addPreferencesFromResource(this, R.xml.autofill_and_payments_preferences);
getActivity().setTitle(R.string.prefs_autofill_and_payments);
ChromeSwitchPreference autofillSwitch =
(ChromeSwitchPreference) findPreference(PREF_AUTOFILL_SWITCH);
autofillSwitch.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
PersonalDataManager.setAutofillEnabled((boolean) newValue);
return true;
}
});
if (ChromeFeatureList.isEnabled(ChromeFeatureList.ANDROID_PAYMENT_APPS)) {
Preference pref = new Preference(getActivity());
pref.setTitle(getActivity().getString(R.string.payment_apps_title));
pref.setFragment(AndroidPaymentAppsFragment.class.getCanonicalName());
pref.setShouldDisableView(true);
pref.setKey(PREF_ANDROID_PAYMENT_APPS);
getPreferenceScreen().addPreference(pref);
}
}
/**
* Create a single User Dictionary Preference object, with its parameters set.
* @param localeString The locale for which this user dictionary is for.
* @return The corresponding preference.
*/
protected Preference createUserDictionaryPreference(@Nullable final String localeString) {
final Preference newPref = new Preference(getActivity());
final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION);
if (null == localeString) {
newPref.setTitle(Locale.getDefault().getDisplayName());
} else {
if (localeString.isEmpty()) {
newPref.setTitle(getString(R.string.user_dict_settings_all_languages));
} else {
newPref.setTitle(
LocaleUtils.constructLocaleFromString(localeString).getDisplayName());
}
intent.putExtra("locale", localeString);
newPref.getExtras().putString("locale", localeString);
}
newPref.setIntent(intent);
newPref.setFragment(UserDictionarySettings.class.getName());
return newPref;
}
private void setPreferenceScreenType(Class<?> classObj, String key, int type) {
Preference pf = findPreference(key);
pf.setFragment(classObj.getCanonicalName());
Bundle b = pf.getExtras();
b.putInt(PrefsLogic.EXTRA_PREFERENCE_TYPE, type);
}