如何自定义CheckBoxPreference标题的文本颜色

Question

如何更改CheckBoxPreference中标题文本的颜色？

Answer 1

正如zenob所说,这可以通过自定义布局来解决.框架中定义的首选项布局用于应用程序:

custom_preferece_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2006 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="?android:attr/listPreferredItemHeight"
    android:gravity="center_vertical" android:paddingRight="?android:attr/scrollbarSize">

    <RelativeLayout android:layout_width="wrap_content"
        android:layout_height="wrap_content" android:layout_marginLeft="15dip"
        android:layout_marginRight="6dip" android:layout_marginTop="6dip"
        android:layout_marginBottom="6dip" android:layout_weight="1">

        <TextView android:id="@+android:id/title"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:singleLine="true" android:textAppearance="?android:attr/textAppearanceLarge"
            android:ellipsize="marquee" android:fadingEdge="horizontal"
            android:textColor="#FF0000" />

        <TextView android:id="@+android:id/summary"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:layout_below="@android:id/title" android:layout_alignLeft="@android:id/title"
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:maxLines="4" />

    </RelativeLayout>

    <!-- Preference should place its actual preference widget here. -->
    <LinearLayout android:id="@+android:id/widget_frame"
        android:layout_width="wrap_content" android:layout_height="match_parent"
        android:gravity="center_vertical" android:orientation="vertical" />

</LinearLayout>

textColor属性是在上面的布局中为标题TextView定义的.将此布局与首选项xml中的复选框首选项一起使用.

mypreference.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <CheckBoxPreference android:key="testcheckbox"
    android:title="Checkbox Title"
    android:summary="Checkbox Summary..."
    android:layout="@layout/custom_preference_layout"></CheckBoxPreference>
</PreferenceScreen>

复选框首选项标题将具有在自定义布局中定义的颜色.

Answer 2

我找到的一个简单的解决方案是将其添加到您的风格中

    <item name="android:textColorSecondary">#000000</item>
    <item name="android:textColorPrimary">#000000</item>

textColorPrimary将改变标题的颜色checkBoxPreference和textColorSecondary会改变颜色summary.