Kann android.support.v14.preference.MultiSelectListPreference nicht funktionieren

Question

Kann nicht herausfinden, was los ist. Fehlerprotokoll hilft nicht, ich habe versucht, ein paar Lösungen auch hier zu erwähnen.

05-24 17:32:05.674 2283-2283/? E/Crash: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xyz.android/com.xyz.android.activities.user_management.NewUserProfileActivity}: android.view.InflateException: Binary XML file line #20: Error inflating class android.support.v14.preference.MultiSelectListPreference 
 
             ------------------------------- 
 
             --------- Stack trace --------- 
 
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585 
 
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2667) 
 
android.app.ActivityThread.wrap11(ActivityThread.java)android.app.ActivityThread$H.handeMessage(ActivityThread.java:1494) 
 
android.os.Handler.dispatchMessage(Handler.java:111) 
 
android.os.Looper.loop(Looper.java:207) 
 
android.app.ActivityThread.main(ActivityThread.java:5770)java.lang.reflect.Method.invoke(Native Method) 
 
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 
 
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679) 
 
--------- Cause --------- 
 
android.view.InflateException: Binary XML file line #20: Error inflating class android.support.v14.preference.MultiSelectListPreference 
 
android.support.v7.preference.PreferenceInflater.createItem(PreferenceInflater.java:263 
 
android.support.v7.preference.PreferenceInflater.createItemFromTag(PreferenceInflater.java:292) 
 
android.support.v7.preference.PreferenceInflater.rInflate(PreferenceInflater.java:359) 
 
android.support.v7.preference.PreferenceInflater.rInflate(PreferenceInflater.java:361) 
 
android.support.v7.preference.PreferenceInflater.inflate(PreferenceInflater.java:167) 
 
android.support.v7.preference.PreferenceInflater.inflate(PreferenceInflater.java:117) 
 
android.support.v7.preference.PreferenceManager.inflateFromResource(PreferenceManager.java:128) 
 
android.support.v7.preference.PreferenceFragmentCompat.addPreferencesFromResource(PreferenceFragmentCompat.java:428) 
 
com.xyz.android.activities.user_management.UserProfilePrefFragment.onCreatePreferences(UserProfilePrefFragment.java:12) 
 
android.support.v7.preference.PreferenceFragmentCompat.onCreate(PreferenceFragmentCompat.java:223) 
 
android.support.v4.app.Fragment.performCreate(Fragment.java:2180) 
 
android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1244) 
 
android.support.v4.app.FragmentTransition.addToFirstInLastOut(FragmentTransition.java:1085) 
 
android.support.v4.app.FragmentTransition.calculateFragments(FragmentTransition.java:976) 
 
android.support.v4.app.FragmentTransition.startTransitions(FragmentTransition.java:95) 
 
android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2146 
 
android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2103) 
 
android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2013) 
 
android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:388)        

Hier ist die Präferenz

<android.support.v14.preference.MultiSelectListPreference 
     android:defaultValue="array/pref_hobby_list_default" 
     android:dialogTitle="Hobbies" 
     android:summary="set your hobbies" 
     android:key="hobby_pref" 
     android:title="Hobbies" 
     android:icon="@drawable/add_favorite" 
     android:entries="@array/hobbies" 
     android:entryValues="@array/hobby_values"/> 

Entsprechende String-Arrays

<string-array name="hobbies"> 
    <item>Football</item> 
    <item>Travelling</item> 
    <item>Listening to Music</item> 
    <item>Painting</item> 
    <item>Watching Movies</item> 
    <item>Shopping</item> 
    <item>Meeting new people</item> 
</string-array> 

<string-array name="hobby_values"> 
    <item>football</item> 
    <item>travelling</item> 
    <item>listening_to_music</item> 
    <item>painting</item> 
    <item>watching_movies</item> 
    <item>shopping</item> 
    <item>meeting_new_people</item> 
</string-array> 

<string-array name="pref_hobby_list_default"> 
    <item>football</item> 
    <item>travelling</item> 
    <item>listening_to_music</item> 
    <item>painting</item> 
    <item>watching_movies</item> 
    <item>shopping</item> 
    <item>meeting_new_people</item> 
</string-array> 

Preference Fragment:

import android.support.v7.preference.PreferenceFragmentCompat; 

public class UserProfilePrefFragment extends PreferenceFragmentCompat { 

@Override 
public void onCreatePreferences(Bundle savedInstanceState, String rootKey) { 
    // Load the Preferences from the XML file 
    addPreferencesFromResource(R.xml.app_preferences); 
} 

} 

Answer 1

Sie haben vergessen, das @ Zeichen in android:defaultValue="array/pref_hobby_list_default"