CheckBoxPreference 具有自己的布局 [英] CheckBoxPreference with own layout

问题描述

我有带有一些 PreferenceCheckBox 的 PreferenceScreen.我想更改标题和摘要的 textColor 和 textSize 以及选中和取消选中复选框的图像.所以我使用 android:layout 来改变这个属性.

I have PreferenceScreen with some PreferenceCheckBoxes. I want to change the textColor and textSize for title and summary and the images for the CheckBox checked and uncheckes. So I am using android:layout to change this attributes.

我的 CheckBoxPreference:

My ChceckBoxPreference:

<CheckBoxPreference
    android:layout="@layout/preference_checkbox"
    android:key="temp"
    android:title="@string/title"
    android:summary="@string/summary"
    android:defaultValue="true" 
/>

当我使用 android:widgetLayout 时，它看起来很奇怪.这是我的preference_checkbox.xml:

When I use android:widgetLayout it looks strange. And this is my preference_checkbox.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="10dp"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:layout_alignParentLeft="true"
    android:layout_marginLeft="10dp"
>
<TextView 
    android:id="@+android:id/title"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:textColor="@color/gray"
    android:textSize="20sp"     
    />
<TextView 
    android:id="@+android:id/summary"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:textColor="@color/gray"
    android:textSize="14sp"
    />
</LinearLayout>
<CheckBox
    android:id="@+android:id/checkbox"
    android:layout_width="wrap_content" 
    android:layout_height="fill_parent" 
    android:layout_alignParentRight="true"
    android:layout_marginRight="10dp"
/>  
</RelativeLayout>     

带有 id @+android:id/title 的标题和带有 @+android:id/summary 的摘要显示正确的值.然而，尽管有默认值和 id @+android:id/checkbox 的复选框无法正常工作.它没有显示正确的值，我无法更改首选项中保留的值.在不使用任何布局的情况下，我可以通过触摸整个 CheckBoxPreference 来更改复选框的值.但是现在(使用我的布局)我只能通过触摸此复选框来更改复选框的值.如何使用所有功能以正确的方式为 CheckBoxPreference 进行布局?

Title with id @+android:id/title and summary with @+android:id/summary are showing correct values. However the checkbox despite of default value and id @+android:id/checkbox is not working properly. It isn't showing correct value and I can't change the value kept in preferences. Without using any layout, I can change value of checkbox by touch at the whole CheckBoxPreference. But now (with my layout) I can change value of checkbox only by touch on this checkbox. How can I make layout for CheckBoxPreference in properly way with all the functionalities?

推荐答案

试试这个作为preference_checkbox.xml

Try this as preference_checkbox.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>

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