更改NumberPicker分颜色

问题描述

在最近的Andr​​oid版本，数量采摘使用蓝色分频器时绘制的（参见图片下文）。

我想改变这种颜色。是否有一个工作的解决方案？或者是一个库，打包NumberPicker的更新版本，允许自定义分隔颜色？

我已经试过的Andr​​oid numberpicker 但我得到的运行时错误（见下文），由于一些code从试图访问一个不存在的资源ID库。

  android.content.res.Resources $ NotFoundException：资源编号为0x0
        在android.content.res.Resources.getValue（Resources.java:1123）
        在android.content.res.Resources.loadXmlResourceParser（Resources.java:2309）
        在android.content.res.Resources.getLayout（Resources.java:939）
        在android.view.LayoutInflater.inflate（LayoutInflater.java:395）
        在net.simonvt.numberpicker.NumberPicker＆LT; INIT＆GT;（NumberPicker.java:635）
        在net.simonvt.numberpicker.NumberPicker＆LT; INIT＆GT;（NumberPicker.java:560）
        在net.simonvt.numberpicker.NumberPicker＆LT; INIT＆GT;（NumberPicker.java:550）
 

解决方案

在此基础上（ http://stackoverflow.com/a /二百九十一万五千四百八十零分之二千○二十九万一千四百一十六虽然它是关于的DatePicker）有几种方法：

1. 自己写的NumberPicker没有mSelectionDivider及其分支机构或者使用维克拉姆的反向移植。在最后一种情况：

   1. 从 github上从LIB下载

   2. 变化绘制在RES /绘制-XXX / np_numberpicker_selection_divider.9.png：

      • 要透明（或其他）.9.png
      • 创建的RES / np_numberpicker_selection_divider.xml造型线资源绘制（与 0dp 高度或透明色）。

   3. 或从的OnDraw（Canvas）的方法在如果（mSelectionDivider！= NULL）分公司href="https://github.com/SimonVT/android-numberpicker/blob/master/library/src/net/simonvt/numberpicker/NumberPicker.java">NumberPicker.java像这里

2. 使用反射来访问私人最终场mSelectionDivider （详细资料：https://github.com/android/platform_frameworks_base/blob/master/core/java/android/widget/NumberPicker.java) - 如见修改这里。我用反射，但它不是最好的解决办法。

On recent android versions, number pickers use a blue divider when drawn (cf. image below).

I would like to change this color. Is there a working solution? or perhaps a library that package an updated version of NumberPicker that allows customizing the divider color?

I have tried android-numberpicker but I get an error (see below) at runtime due to some code from the library that tries to access to a resource id that does not exist.

android.content.res.Resources$NotFoundException: Resource ID #0x0
        at android.content.res.Resources.getValue(Resources.java:1123)
        at android.content.res.Resources.loadXmlResourceParser(Resources.java:2309)
        at android.content.res.Resources.getLayout(Resources.java:939)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:395)
        at net.simonvt.numberpicker.NumberPicker.<init>(NumberPicker.java:635)
        at net.simonvt.numberpicker.NumberPicker.<init>(NumberPicker.java:560)
        at net.simonvt.numberpicker.NumberPicker.<init>(NumberPicker.java:550)

解决方案

Based on this (http://stackoverflow.com/a/20291416/2915480 although it's about DatePicker) there are several ways:

1. Write your own NumberPicker without mSelectionDivider and its affiliates or use backported by Vikram. In last case:

   1. download from lib from github

   2. change drawable in res/drawable-xxx/np_numberpicker_selection_divider.9.png:

      • to transparent (or whatever) .9.png
      • create np_numberpicker_selection_divider.xml shape line resource in res/drawable (with 0dp height or transparent color).

   3. OR remove if (mSelectionDivider != null) branch from onDraw(Canvas) method in NumberPicker.java like here

2. Use reflection to access private final field mSelectionDivider (details: https://github.com/android/platform_frameworks_base/blob/master/core/java/android/widget/NumberPicker.java) - e.g. see modification here. I used reflection but it's not the best solution.

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