按下按钮即可更改文字颜色

Question

当用户触摸此按钮时,如何更改按钮中的彩色文本？

这是我的shape.xml代码:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >


 <item android:state_pressed="true" >
<shape android:shape="rectangle">
  <gradient android:startColor="#ffcc33" 
    android:endColor="#ffcc33"
    android:angle="270" />
  <corners android:radius="4dp" />
  <stroke android:width="2px" android:color="#FFFFFF" />
</shape>
</item>

  <item android:state_focused="true" >
<shape android:shape="rectangle">
  <gradient android:startColor="#ffcc33" 
    android:endColor="#ffcc33"
    android:angle="270" />
  <corners android:radius="4dp" />
  <stroke android:width="2px" android:color="#FFFFFF" />
</shape>
</item>

  <item >
<shape android:shape="rectangle">
  <gradient android:startColor="#333333" 
    android:endColor="#333333"
    android:angle="270" />
  <corners android:radius="4dp" />
  <stroke android:width="2px" android:color="#FFFFFF" />
</shape>
</item>

</selector>

Answer 1

使用颜色选择器,像这样

SRC /颜色/ button_text.xml

 <?xml version="1.0" encoding="utf-8"?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:state_pressed="true" android:color="#000000" /> 
     <item android:state_focused="true" android:color="#000000" />
     <item android:color="#FFFFFF" />
 </selector>

然后在按钮中执行此操作

<Button
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="@string/text"
   android:textColor="@color/button_text" />