这是一个按钮，选择这样的，正常的，当它表现为红色，当pressed它呈灰色。

This is a button selector such that when normal it appears red, when pressed it appears grey.

我想问一下怎么可以在code进一步直接修改，这样当preSSED文字大小和颜色也可以改变吗？非常感谢！

I would like to ask how could the code be further directly modified such that when PRESSED the text size and color could also change? Many thanks!

<item android:state_pressed="true" >         
    <shape xmlns:android="http://schemas.android.com/apk/res/android"> 
        <stroke android:width="2dp" android:color="@color/black" />
        <solid android:color="@color/grey"/>
        <padding android:left="5dp" android:top="2dp" 
            android:right="5dp" android:bottom="2dp" /> 
        <corners android:radius="5dp" /> 
    </shape>    
</item>

<item>
    <shape xmlns:android="http://schemas.android.com/apk/res/android"> 
        <stroke android:width="2dp" android:color="@color/black" />
        <solid android:color="#FF6699"/>
        <padding android:left="5dp" android:top="2dp" 
            android:right="5dp" android:bottom="2dp" /> 
        <corners android:radius="5dp" /> 
    </shape>
</item>

推荐答案

您只需要设置选择的按钮在布局文件。

You just need to set selector of button in your layout file.

<Button
     android:id="@+id/button1"
     android:background="@drawable/selector_xml_name"
     android:layout_width="200dp"
     android:layout_height="126dp"
     android:text="Hello" />

和完成的。

修改

以下是绘制目录 button_effect.xml 文件

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

    <item android:drawable="@drawable/numpad_button_bg_selected" android:state_selected="true"></item>
    <item android:drawable="@drawable/numpad_button_bg_pressed" android:state_pressed="true"></item>
    <item android:drawable="@drawable/numpad_button_bg_normal"></item>

</selector>

在此，你可以看到，有3个可绘，你只需要把这个 button_effect 风格的按钮，正如我上面写的。你只需要更换 selector_xml_name 与 button_effect 。

In this, you can see that there are 3 drawables, you just need to place this button_effect style to your button, as i wrote above. You just need to replace selector_xml_name with button_effect.