编程方式替换选择图片 [英] Replace selector images programmatically

问题描述

我有一个具有设置为选择一个绘制的图像资源的ImageView的。我如何编程方式访问选择和改变的图像加亮和不突出的状态？

I have an ImageView that has a drawable image resource set to a selector. How do I programmatically access the selector and change the images of the highlighted and non-highlighted state?

下面是选择的code：

Here is a code of selector:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/iconSelector">
  <!-- pressed -->
  <item android:state_pressed="true" android:drawable="@drawable/btn_icon_hl" />
  <!-- focused -->
  <item android:state_focused="true" android:drawable="@drawable/btn_icon_hl" />
  <!-- default -->
  <item android:drawable="@drawable/btn_icon" />
</selector>

我希望能够取代 btn_icon_hl 和 btn_icon 与其他图像。

推荐答案

据我已经能够找到（我试着做类似的东西我自己），有没有办法修改单个国家的StateListDrawable有后已经被定义。你可以，但是，通过code定义一个新的：

As far as I've been able to find (I've tried doing something similar myself), there's no way to modify a single state after the StateListDrawable has already been defined. You can, however, define a NEW one through code:

StateListDrawable states = new StateListDrawable();
states.addState(new int[] {android.R.attr.state_pressed},
    getResources().getDrawable(R.drawable.pressed));
states.addState(new int[] {android.R.attr.state_focused},
    getResources().getDrawable(R.drawable.focused));
states.addState(new int[] { },
    getResources().getDrawable(R.drawable.normal));
imageView.setImageDrawable(states);

和你可以只让他们两个人的手，或者因为你需要它创建一个不同的。

And you could just keep two of them on hand, or create a different one as you need it.

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