res/values/attrs.xml
<declare-styleable name="CellLayout"><!-- The width of a single cell --><attr name="cellWidth" format="dimension"></attr><!-- The height of a single cell --><attr name="cellHeight" format="dimension"></attr>
.....
</declare-styleable>
res/layout-port/workspace_screen.xml
<com.android.launcher.celllayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher" android:layout_width="fill_parent" android:layout_height="fill_parent" launcher:cellwidth="80dip" launcher:cellheight="96dip" ....></com.android.launcher.celllayout>
src/com.android.launcher.CellLayout.java
public CellLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CellLayout, defStyle, 0);
mCellWidth = a.getDimensionPixelSize(R.styleable.CellLayout_cellWidth, 10);
mCellHeight = a.getDimensionPixelSize(R.styleable.CellLayout_cellHeight, 10);
.....
}
根据颜色看, 应该很清晰:
1. 蓝色部分是自己定义的styleable和attr的名称, 代码和XML里要一致;
2. 绿色部分是自定义的命名空间名称, 也只要上下保持一致即可;
3. 红色部分是View所在的包名, 不允许有误.
参考:http://blog.youkuaiyun.com/Android_Tutor/archive/2010/04/21/5508615.aspx
http://hi.baidu.com/lck0502/blog/item/8d4e453f80cf43cf7c1e714b.html
从Android Launcher源码学习自定义标签【转】
最新推荐文章于 2025-04-08 00:15:00 发布