无法使android.support.v14.preference.MultiSelectListPreference正常工作

Question

Can't figure out what's wrong. Error log is of no help, I tried a few solutions mention here too.

 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) 

Here is the preference

<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"/>

Corresponding 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

您忘记了android:defaultValue="array/pref_hobby_list_default"的@符号android:defaultValue="array/pref_hobby_list_default"