微调内部填充是在Android 6.0.1大 [英] Spinner inner padding is larger on Android 6.0.1

问题描述

简介：

使用的Andr​​oid 6.0.1的新版本，似乎像Android这样做，因为在默认情况下Spinner组件上的一些变化，围绕下来胡萝卜内部填充是有点大了。

With the new release of Android 6.0.1, seems like Android made some changes on the Spinner component because by default, the inner padding around the down carrot is a bit bigger.

我注意到了这一点上，我没有修改在code什么，而只是更新了操作系统的设备上，但微调器有不同的尺寸。一个应用程序

I noticed this on an app where I haven't modified anything in the code, but simply updated the OS on the device and yet the spinners have different sizes.

情况：

我有2个纱厂之一，一个 RelativeLayout的（介意其他组件，我说的一切，所以你可以看到布局的这部分旁边的另 - 删除在完全不必要的属性或查看IDS）

I have 2 spinners one next to the other in a RelativeLayout(mind the rest of the components, I added everything so you can see this part of the layout - removed the totally unnecessary properties or view ids)

<RelativeLayout
    android:id="@+id/header"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:id="@+id/container_for_buttons_on_the_right"
        android:layout_width="wrap_content"
        android:layout_height="48dp"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true">

        <!-- Buttons here-->
    </LinearLayout>

    <android.support.v7.widget.AppCompatSpinner
        android:id="@+id/spinner_1"
        android:layout_width="wrap_content"
        android:layout_height="48dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <ViewSwitcher
        android:id="@+id/spinner_switch"
        android:layout_width="wrap_content"
        android:layout_height="48dp"
        android:layout_toEndOf="@id/spinner_1"
        android:layout_toLeftOf="@id/container_for_buttons_on_the_right"
        android:layout_toRightOf="@id/spinner_1"
        android:layout_toStartOf="@id/container_for_buttons_on_the_right"
        android:inAnimation="@anim/fade_in"
        android:outAnimation="@anim/fade_out">

        <android.support.v7.widget.AppCompatSpinner
            android:layout_width="wrap_content"
            android:layout_height="match_parent" />

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <!-- ImageView properties are incomplete but I need it there.-->
    </ViewSwitcher>
</RelativeLayout>

为 getView（）方法使用的微调适配器的布局是这样的：

The layout used by the Spinner adapter for the getView() method is this:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    android:orientation="horizontal"
    android:paddingLeft="8dp"
    android:paddingRight="8dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:ellipsize="end"
        android:gravity="center_vertical"
        android:singleLine="true"
        tools:text="Test" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_weight="0"
        android:gravity="center"
        android:paddingLeft="4dp"
        android:singleLine="true"
        android:textColor="@color/text_primary"
        android:textSize="@dimen/text_size_body"
        tools:ignore="RtlHardcoded,RtlSymmetry"
        tools:text="7%" />
</LinearLayout>

为例：

该屏幕截图是结合2个独立的屏幕截图采取：

The screenshot is combined of 2 separate screenshots taken:

1. 在顶部的一个采取一个的Nexus 5 设备上运行的的Andr​​oid 6.0


2. 的模式下面也考虑在的Nexus 5 设备，但上运行的的Andr​​oid 6.0.1

1. The one on the top is taken on a Nexus 5 device running on Android 6.0
2. The one below is also taken on a Nexus 5 device BUT running on Android 6.0.1

• 修改1

• EDIT 1

从支持库使用AppCompatSpinner不改变行为。用于支持库的版本是 23.1.1

Using AppCompatSpinner from the support library does not change the behaviour. Support library version used is 23.1.1

推荐答案

通过最小的努力，我能够通过建立在微调自定义背景来解决这个问题。

With minimal effort I was able to fix this by building a custom background for the spinner.

使用 AppCompatSpinner 我要创建2个XML为背景，我们称之为 spinner_background.xml

Using AppCompatSpinner I had to create 2 xmls for the background, let's call this spinner_background.xml:

1 一人去了绘制文件夹，看起来像这样， spinner_background.xml ：

1. First one goes to the drawable folder and looks like this, spinner_background.xml:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:opacity="transparent">
    <item
        android:width="24dp"
        android:height="24dp"
        android:drawable="@drawable/selector_background_borderless"
        android:gravity="end|center_vertical" />
    <item android:drawable="@drawable/bg_spinner_anchor" />
</layer-list>

其中， selector_background_borderless 是一个普通的选择就像（我加你所需要的最小的项目，你可以探索它是V21 +纹波的选择。事实上，我会建议你这样做）：

Where selector_background_borderless is a plain selector like(I added the minimal items you need, you could explore it's ripple alternative for v21+. In fact I would recommend you to do so):

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="#19000000" android:state_pressed="true" />
    <item android:drawable="@android:color/transparent" />
</selector>

和 bg_spinner_anchor 是插入符的9patch PNG。我用这些资产： bg_spinner_anchor

And bg_spinner_anchor is a 9patch PNG for the caret. I used these assets: bg_spinner_anchor

2 第二个转到绘制-V23 文件夹正确支持纹波和看起来像这样， spinner_background.xml ：

2. The second one goes to the drawable-v23 folder to properly support ripple and looks like this, spinner_background.xml:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:paddingEnd="16dp"
    android:paddingLeft="0dp"
    android:paddingMode="stack"
    android:paddingRight="0dp"
    android:paddingStart="0dp">
    <item
        android:width="24dp"
        android:height="24dp"
        android:drawable="@drawable/selector_background_borderless"
        android:gravity="end|center_vertical" />

    <item
        android:width="24dp"
        android:height="24dp"
        android:drawable="@drawable/ic_spinner_caret"
        android:gravity="end|center_vertical" />
</layer-list>

其中， ic_spinner_caret 是从Android源$ C ​​$ C看起来像这样使用的载体。您应该添加也添加到您的绘制-V23 文件夹：

Where ic_spinner_caret is a vector used from the Android source code looking like this. You should add also add this to your drawable-v23 folder:

<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24.0"
    android:viewportHeight="24.0"
    android:tint="?attr/colorControlNormal">
    <path
        android:pathData="M7,10l5,5,5-5z"
        android:fillColor="#524e4a"/>
</vector>

积分去从Android的UI工具包指导！

Credits go to alanv from the Android UI toolkit for Guidance!

这篇关于微调内部填充是在Android 6.0.1大的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！