使用XML定义组件样式

<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="@style/textViewStyle"/>

<resources>

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>

<style name="textViewStyle">
<item name="android:textSize">30sp</item>
<item name="android:textColor">#EC9237</item>
<item name="android:text">Hello Moto</item>
</style>

</resources>