ich die Lösung auf meinem eigenen gefunden. Ich habe einen kleinen Work-Around von diesem verschachtelten PreferenceScreen's verwendet. Ich habe einfach eine Trennung zu verschiedenen xml-preference Dateien gemacht, erstellt eine zusätzliche Fragment, die PreferenceFragment erweitert und dort zeige ich eine entsprechende geschachtelte Einstellung Bildschirm.
Vielleicht würde jemand das nützlich finden.
Github sources link.
Einige Codebeispiele unter:
main_preferences.xml
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
<PreferenceCategory android:title="Main category" >
<EditTextPreference
android:defaultValue="defaultValue"
android:key="key_global_setting"
android:title="Global title" />
</PreferenceCategory>
<PreferenceCategory android:title="Nested screens" >
<Preference
android:key="NESTED_KEY1"
android:persistent="false"
android:title="Nested screen #1" />
<Preference
android:key="NESTED_KEY2"
android:persistent="false"
android:title="Nested screen #2" />
</PreferenceCategory>
</PreferenceScreen>
nested_screen1_preferences.xml
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:title="Nested screen #1" >
<CheckBoxPreference
android:defaultValue="false"
android:key="nested_screen_1_1"
android:title="Nested screen 1.1 check box" />
<CheckBoxPreference
android:defaultValue="true"
android:key="nested_screen_1_2"
android:title="Nested screen 1.2 check box" />
</PreferenceScreen>
nested_screen2_preferences.xml
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:title="Nested screen #2">
<CheckBoxPreference
android:defaultValue="true"
android:key="nested_screen2"
android:title="Nested screen 2 check box" />
</PreferenceScreen>
SettingsActivity.java
public class SettingsActivity extends ActionBarActivity implements MyPreferenceFragment.Callback {
private static final String TAG_NESTED = "TAG_NESTED";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
if (toolbar != null) {
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.contentSettings, new MyPreferenceFragment())
.commit();
}
}
@Override
public void onBackPressed() {
// this if statement is necessary to navigate through nested and main fragments
if (getFragmentManager().getBackStackEntryCount() == 0) {
super.onBackPressed();
} else {
getFragmentManager().popBackStack();
}
}
@Override
public void onNestedPreferenceSelected(int key) {
getFragmentManager().beginTransaction().replace(R.id.contentSettings, NestedPreferenceFragment.newInstance(key), TAG_NESTED).addToBackStack(TAG_NESTED).commit();
}
}
MyPreferenceFragment.java
// The main preference fragment class
public class MyPreferenceFragment extends PreferenceFragment implements Preference.OnPreferenceClickListener {
private Callback mCallback;
private static final String KEY_1 = "NESTED_KEY1";
private static final String KEY_2 = "NESTED_KEY2";
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
if (activity instanceof Callback) {
mCallback = (Callback) activity;
} else {
throw new IllegalStateException("Owner must implement Callback interface");
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Load the preferences from an XML resource
addPreferencesFromResource(R.xml.main_preferences);
// add listeners for non-default actions
Preference preference = findPreference(KEY_1);
preference.setOnPreferenceClickListener(this);
preference = findPreference(KEY_2);
preference.setOnPreferenceClickListener(this);
}
@Override
public boolean onPreferenceClick(Preference preference) {
// here you should use the same keys as you used in the xml-file
if (preference.getKey().equals(KEY_1)) {
mCallback.onNestedPreferenceSelected(NestedPreferenceFragment.NESTED_SCREEN_1_KEY);
}
if (preference.getKey().equals(KEY_2)) {
mCallback.onNestedPreferenceSelected(NestedPreferenceFragment.NESTED_SCREEN_2_KEY);
}
return false;
}
public interface Callback {
public void onNestedPreferenceSelected(int key);
}
}
NestedPreferencesFragment.java
public class NestedPreferenceFragment extends PreferenceFragment {
public static final int NESTED_SCREEN_1_KEY = 1;
public static final int NESTED_SCREEN_2_KEY = 2;
private static final String TAG_KEY = "NESTED_KEY";
public static NestedPreferenceFragment newInstance(int key) {
NestedPreferenceFragment fragment = new NestedPreferenceFragment();
// supply arguments to bundle.
Bundle args = new Bundle();
args.putInt(TAG_KEY, key);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
checkPreferenceResource();
}
private void checkPreferenceResource() {
int key = getArguments().getInt(TAG_KEY);
// Load the preferences from an XML resource
switch (key) {
case NESTED_SCREEN_1_KEY:
addPreferencesFromResource(R.xml.nested_screen1_preferences);
break;
case NESTED_SCREEN_2_KEY:
addPreferencesFromResource(R.xml.nested_screen2_preferences);
break;
default:
break;
}
}
}
http://stackoverflow.com/a/27455363/2247612 Diese Antwort hat eine perfekte Lösung für Support Library – harishannam