merge和include的区别

2018-07-02 1 min

merge 和 include 的区别是

<merge xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="match_parent"  
    android:layout_height="match_parent" >  
    <LinearLayout  
        android:id="@+id/view_content"  
        android:layout_width="match_parent"  
        android:layout_height="100dp"  
        android:background="#4169E1"  
        android:orientation="horizontal" >  
    </LinearLayout>  
<!--more-->
    <RelativeLayout  
        android:id="@+id/view_todo"  
        android:layout_width="100dp"  
        android:layout_height="match_parent"  
        android:background="#800080" >  
    </RelativeLayout>  
</merge>

引用必须是这样的： ==View v = inflater.inflate(R.layout.el_marge, itemGroup, true); == 否则报错：<merge /> can be used only with a valid ViewGroup root and attachToRoot=true 也就是说：merge 是为了减少 include 里的根 ViewGroup，那么 inflate 的 marge 必须放到 ViewGroup 中。