How do I include layout attribute before parent layout?

问题

I am using One Activity and others are fragments. My parent layout is cardview and I want to add another layout at the top the using include layout tag. Below I posted output images and code:.

This is my card Layout

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/cardview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:cardCornerRadius="8dp"
app:cardUseCompatPadding="true"
app:cardBackgroundColor="@android:color/transparent"
android:elevation="0dp">
<include layout="@layout/edit_text"/>
<TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="25sp"
    android:paddingLeft="10dp"
    android:textColor="#4928ef"
    android:textStyle="italic"/>
</android.support.v7.widget.CardView>

And this is my common layout, which I have to include in above card layout

edit_text.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="GO"
    android:id="@+id/go"
    android:layout_alignParentRight="true"
    />
<EditText
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="Quick Search"
    android:layout_alignParentLeft="true"/>
</RelativeLayout>

Output

Click here to display output of above code

I tried to change cardview parent to LinearLayout and cardview as child but I don't know why list item (textview) the first one only displays and others are ignored. I am trying to make layout like below:

Click here to see what I expected

回答1:

Use only 1 child in cardView

Try this

main.xml

    <?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/cardview"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:elevation="0dp"
    app:cardBackgroundColor="@android:color/transparent"
    app:cardCornerRadius="8dp"
    app:cardUseCompatPadding="true">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <include layout="@layout/edit_text" />

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="10dp"
            android:text="Textview"
            android:textColor="#4928ef"
            android:textSize="25sp"
            android:textStyle="italic" />
    </LinearLayout>
</android.support.v7.widget.CardView>

and edit_text.xml

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal" android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="GO"
        android:id="@+id/go"
        android:layout_alignParentRight="true"
        />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Quick Search"
        android:layout_alignParentLeft="true"/>
</RelativeLayout>

Adjust background using android:background="@drawable/background"

回答2:

remove

<include layout="@layout/edit_text"/>

from your cardView layout, because cardView should have only one ChildView.
so as i understand, you want to use search bar on top.
so here is my implementation:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.tiikr.OverlayActivity">

    <include layout="@layout/edit_text"/>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/my_recycler_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:scrollbars="vertical"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin">

    </android.support.v7.widget.RecyclerView>

</LinearLayout>

so here i use LinearLayout as a parent of the view, and on top is your search bar layout, and down is the listView wich you need to populate in the code with your cardview layout

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/cardview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:cardCornerRadius="8dp"
app:cardUseCompatPadding="true"
app:cardBackgroundColor="@android:color/transparent"
android:elevation="0dp">
<TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="25sp"
    android:paddingLeft="10dp"
    android:textColor="#4928ef"
    android:textStyle="italic"/>
</android.support.v7.widget.CardView>

See above code with RecyclerView

来源：https://stackoverflow.com/questions/38941017/how-do-i-include-layout-attribute-before-parent-layout