Android: Style Preferences

Question

I made a custom setting (i.e. preference with custom layout) that appears in the preference list PreferenceActivity.

The layout is created in code. The problem is that the TextView font created in the code looks a bit different than the standard Android preference font.

So the solution would be to apply android preference style attributes to mine TextView. The appropriate styles should be preferenceScreenStyle or preferenceStyle (I'm not sure).

My problem is that I cannot figure out how to read the attributes of the standard Android style, so I can set them in code.

Answer 1

I have the same problem, but I fixed it for some mobile devices, HTC Saphire and Samsung Galaxy S, but I have problems with HTC Desire HD. You can see the standard preference style in android_SDK_resurces / layout / preference.xml. There are fields, text sizes, ....

Answer 2

Apologies for the necro, but I could not find the answer to any question about the style of preferences. Finally, I found the answer: default preference now uses layout/preference_material. You can see this and other more specific layouts in the android source here . Copied below only if the link breaks:

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2014 The Android Open Source Project
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
          http://www.apache.org/licenses/LICENSE-2.0
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->
<!-- Layout for a Preference in a PreferenceActivity. The
     Preference is able to place a specific widget for its particular
     type in the "widget_frame" layout. -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?attr/listPreferredItemHeightSmall"
    android:gravity="center_vertical"
    android:paddingStart="?attr/listPreferredItemPaddingStart"
    android:paddingEnd="?attr/listPreferredItemPaddingEnd"
    android:background="?attr/activatedBackgroundIndicator"
    android:clipToPadding="false">
    <LinearLayout
        android:id="@+id/icon_frame"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="-4dp"
        android:minWidth="60dp"
        android:gravity="start|center_vertical"
        android:orientation="horizontal"
        android:paddingEnd="12dp"
        android:paddingTop="4dp"
        android:paddingBottom="4dp">
        <com.android.internal.widget.PreferenceImageView
            android:id="@+id/icon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:maxWidth="48dp"
            android:maxHeight="48dp" />
    </LinearLayout>
    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:paddingTop="16dp"
        android:paddingBottom="16dp">
        <TextView android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:textAppearance="?attr/textAppearanceListItem"
            android:ellipsize="marquee" />
        <TextView android:id="@+id/summary"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/title"
            android:layout_alignStart="@id/title"
            android:textAppearance="?attr/textAppearanceListItemSecondary"
            android:textColor="?attr/textColorSecondary"
            android:maxLines="10"
            android:ellipsize="end" />
    </RelativeLayout>
    <!-- Preference should place its actual preference widget here. -->
    <LinearLayout android:id="@+id/widget_frame"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="end|center_vertical"
        android:paddingStart="16dp"
        android:orientation="vertical" />
</LinearLayout>

Answer 3

I managed to solve this problem by replacing the current user preference layout resource with the layout resource used by the standard preference, like EditTextPreference, for example. Here is a sample code, note that TimePreference is a user preference.

    TimePreference wake_time = (TimePreference)findPreference("wake_time");
    EditTextPreference exercise = (EditTextPreference)findPreference("exercise");
    int r = exercise.getLayoutResource();
    wake_time.setLayoutResource(r);