Android开发:Theme常用技巧

2014-11-24 11:36:39 来源: 作者: 浏览: 1

Theme Style 的区别:


+ Theme Style 的集合


+ Style 作用于单个 View 对象,而 Theme 则作用于一个特定 Activity 中的所有 View 对象


+ 可以认为 Theme“ 是一种 ”Style


+ 多个 Theme 可以同时作用于同一个 Activity


1. 创建 styles.xml 文件,用作 Theme





编辑 styles.xml ,使之如下:


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


< resources >


< style name = "right" >


< item name = "android:gravity" > right item >


style >



< style name = "green_glow" >


< item name = "android:textStyle" > bold item >


< item name = "android:shadowColor" > #0F0 item >


< item name = "android:shadowRadius" > 3.0 item >


< item name = "android:shadowDx" > 1.5 item >


< item name = "android:shadowDy" > 1.3 item >


< item name = "android:textColor" > #FFF item >


style >


resources >



2. 修改 main.xml ,使之如下:


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


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


android:orientation = "vertical"


android:layout_width = "fill_parent"


android:layout_height = "fill_parent"


>


< TextView


android:layout_width = "fill_parent"


android:layout_height = "wrap_content"


android:text = "Big!"


android:textSize = "128px"


android:textColor = "#FF0"


/>



< TextView


android:layout_width = "fill_parent"


android:layout_height = "wrap_content"


android:text = "Hello, Android!"


android:textSize = "16px"


android:textColor = "#F00"


/>



< TextView


android:layout_width = "fill_parent"


android:layout_height = "wrap_content"


android:text = "Glow"


android:textSize = "96px"


/>


LinearLayout >



3. 修改 Activity 对应的代码,使之如下:


public class ControlTheme extends Activity


{


@Override


public void onCreate(Bundle savedInstanceState)


{


super .onCreate(savedInstanceState);



// setTheme 方法的调用 一定要在 setContentView 之前


setTheme(R.style. right );


setTheme(R.style. green_glow );



setContentView(R.layout. main );


}


}



4. 运行结果




-->

评论

帐  号: 密码: (新用户注册)
验 证 码:
表  情:
内  容: