Question Marks in each Preference Layout elements

Asked Feb 27 '19 at 04:24

Active Feb 27 '19 at 05:24

Viewed 300 times

I have a custom preference layout called preference_test.xml using com.android.support:preference-v7:28.0.0 in the build.gradle

<?xml version="1.0" encoding="utf-8"?><?xml version="1.0" encoding="utf-8"?>

<SwitchPreference
    android:defaultValue="false"
    android:icon="@drawable/ic_set_seralarm"
    android:key="key_seralarm"
    android:title="@string/ptit_seralarm" />

<ListPreference
    android:defaultValue="1"
    android:entries="@array/service_time_entries"
    android:entryValues="@array/service_time_values"
    android:icon="@drawable/ic_set_sertime"
    android:key="key_service_time"
    android:title="@string/ptit_sertime" />

<SwitchPreference
    android:defaultValue="false"
    android:icon="@drawable/ic_set_sermute"
    android:key="key_service_mute"
    android:title="@string/ptit_sermute" />

The application, settings and preference elements works perfect, but I notice weard “question marks” on the left panel of the palette in the

Design tab as show in the following image:

Using Android Studio 3.2.1 Any explanation?

edited Feb 27 '19 at 05:24

ADM

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asked Feb 27 '19 at 04:24

nnyerges

https://stackoverflow.com/questions/2733907/question-mark-in-xml-attributes-for-android – Adil Feb 27 '19 at 04:38
ADM/AD10 Its not about question marks on the layout code, its about the question marks in Android Studio Layout DESIGN TAB (indicated in RED on the image) – nnyerges Feb 27 '19 at 17:33
@Adil did you find an answer? – DJ. Aduvanchik Jul 08 '19 at 02:33

Question Marks in each Preference Layout elements

0 Answers0