Android偏好设置图标不以设备为中心=>棒棒糖

Question

我在带有android:icon的ListPreference中添加了一个图标,但是在带有Lollipop或Marshmallow的设备上,图标位于可用空间的左侧,而不是位于Lollipop前设备的中心,以及如何它应该是.

设备前Lollipop(api 18 - JB 4.3),这是应该的!

后棒棒糖(api 23 - MM),图标不居中.

PreferenceScreen

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">

    <PreferenceCategory android:title="@string/general">

        <ListPreference
            android:defaultValue="@string/pref_languages_default"
            android:entries="@array/languages"
            android:entryValues="@array/listLangValues"
            android:icon="@drawable/translate"
            android:key="language"
            android:title="@string/languages" />

    </PreferenceCategory>

</PreferenceScreen>

translate.xml drawable

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:height="24dp"
    android:width="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24">
    <path android:fillColor="#fff" android:pathData="M12.87,15.07L10.33,12.56L10.36,12.53C12.1,10.59 13.34,8.36 14.07,6H17V4H10V2H8V4H1V6H12.17C11.5,7.92 10.44,9.75 9,11.35C8.07,10.32 7.3,9.19 6.69,8H4.69C5.42,9.63 6.42,11.17 7.67,12.56L2.58,17.58L4,19L9,14L12.11,17.11L12.87,15.07M18.5,10H16.5L12,22H14L15.12,19H19.87L21,22H23L18.5,10M15.88,17L17.5,12.67L19.12,17H15.88Z" />
</vector>

我怎样才能将它放在LL或MM上？

Answer 1

我花了一整天的时间试图弄清楚同样的事情。我最终将每个首选项的布局设置为默认布局的修改版本。我将图像视图填充从 -4dp 更改为 0dp，并将 icon_frame 的最小宽度从 60dp 更改为 56dp。

这绝对不理想，但现在可以了。

所以

将首选项布局添加到首选项屏幕中的 ListPreference：

<ListPreference
        android:defaultValue="@string/pref_languages_default"
        android:entries="@array/languages"
        android:entryValues="@array/listLangValues"
        android:icon="@drawable/translate"
        android:key="language"
        android:title="@string/languages"
        android:layout="@layout/my_preference"            
        />

并创建layout\my_preference.xml：

<?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.
-->

<android.support.v7.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?android:attr/activatedBackgroundIndicator"
android:clipToPadding="false"
android:gravity="center_vertical"
android:minHeight="?attr/listPreferredItemHeightSmall"
android:orientation="horizontal"
android:paddingEnd="?attr/listPreferredItemPaddingRight"
android:paddingLeft="?attr/listPreferredItemPaddingLeft"
android:paddingRight="?attr/listPreferredItemPaddingRight"
android:paddingStart="?attr/listPreferredItemPaddingLeft"
tools:ignore="NewApi">

<android.support.v7.widget.LinearLayoutCompat
    android:id="@+id/icon_frame"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginLeft="0dp"
    android:layout_marginStart="0dp"
    android:gravity="start|center_vertical"
    android:minWidth="56dp"
    android:orientation="horizontal"
    android:paddingBottom="4dp"
    android:paddingEnd="12dp"
    android:paddingRight="12dp"
    android:paddingTop="4dp">

    <android.support.v7.widget.AppCompatImageView
        android:id="@+android:id/icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:maxHeight="48dp"
        android:maxWidth="48dp" />
</android.support.v7.widget.LinearLayoutCompat>

<RelativeLayout
    android:layout_width="0px"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:paddingBottom="16dp"
    android:paddingTop="16dp">

    <android.support.v7.widget.AppCompatTextView
        android:id="@android:id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?attr/textAppearanceListItem"
        tools:text="title" />

    <android.support.v7.widget.AppCompatTextView
        android:id="@android:id/summary"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@android:id/title"
        android:layout_alignStart="@android:id/title"
        android:layout_below="@android:id/title"
        android:textAppearance="?android:attr/textAppearanceListItemSecondary"
        android:textColor="?android:attr/textColorSecondary"
        tools:text="summary" />
</RelativeLayout>

<!-- Preference should place its actual preference widget here. -->
<android.support.v7.widget.LinearLayoutCompat
    android:id="@android:id/widget_frame"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:gravity="end|center_vertical"
    android:orientation="vertical"
    android:paddingLeft="16dp"
    android:paddingStart="16dp" />

再说一次，这绝对不是正确的解决方案，但它是一个解决方案。希望它有帮助。