Changing button style in the whole application

问题:

I'm trying to change all the TextColor of my buttons in my app to white and also trying to make it bold. But that isn't happening, I'm overwriting the android:Widget.Button I'm developing for Jelly Bean 4.1.2 What am I doing wrong?

Theme definition in manifest

android:theme="@style/spui" >

The theme where I like to

<style name="spui" parent="android:Theme.Holo.Light.DarkActionBar">
    <item name="android:buttonStyle">@style/Buttonspui</item>
</style>

The style for the button itself

  <style name="Buttonspui" parent="android:Widget.Button">
      <item name="android:background">@drawable/btn_default_holo_light</item>
      <item name="android:minHeight">48dip</item>
      <item name="android:minWidth">64dip</item>
      <item name="android:textColor">#ffffff</item>
      <item name="android:textStyle">bold</item>
  </style>

The button

 <Button
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_marginTop="15dp"
     android:text="@string/edit"
     android:id="@+id/btnEdit"
     style="@style/Buttonspui"/>

回答1:

For styling your Button you can use this:

Go to the drawable folder and make an XML (e.g. button.xml) file called "style" which contains the following:

<?xml version="1.0" encoding="utf-8"?> 

<selector xmlns:android="http://schemas.android.com/apk/res/android">  

    <item>
         <shape>
             <gradient android:startColor="#449def" android:endColor="#2f6699" android:angle="270" />
             <stroke   android:width="1px"          android:color="#000000" />  
                <corners android:bottomLeftRadius="0dp"
                android:bottomRightRadius="0dp"
                android:topLeftRadius="8dp"
                android:topRightRadius="8dp"/>       
              <padding  android:left="10dp"  android:top="10dp" android:right="10dp" android:bottom="10dp" />
         </shape>  
   </item> 

</selector>

This is my code, you can make the necessary changes you want

Now call it in your layout XML (mainactivity.xml) like this

android:background="@drawable/button.xml"

Now to change the font color and style you can use the following which comes as part of the styles.xml in the values folder

<style name="buttonStyle" parent="@android:style/Widget.Button.Small">
    <item name="android:textColor">#FFFFFF</item>
    <item name="android:textSize">12sp</item>
    <item name="android:textStyle">bold</item>
</style>

Now call this in the layout XML (mainactivity.xml) like this

  style="@style/buttonStyle"

The final code is:

<Button
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginTop="15dp"
 android:text="@string/edit"
 android:id="@+id/btnEdit"
 android:background="@drawable/button.xml"
 style="@style/buttonStyle"
/>

Hope this helps :)