Android include layout

Question

I have a layout like this:

<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

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

 <Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="profile" />

 <Button
     android:id="@+id/button2"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:text="item" />

</LinearLayout >

the problem is that it only shows the include part,no buttons showing up. if I remove the include layout, buttons will show up. any idea what I am doing wrong here? thanks.

update: the basicinfo layout:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >

<ImageView
    android:id="@+id/imageView"
    android:layout_width="70dp"
    android:layout_height="wrap_content"
    android:src="@drawable/icon"/>

<LinearLayout
    android:id="@+id/linearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/imageView1"
    android:layout_toRightOf="@id/imageView"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/TextView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="2dp"
        android:text="Name:" />

    <TextView
        android:id="@+id/TextView02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="2dp"
        android:text="Catogery:" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="2dp"
        android:text="Description" />

    <TextView
        android:id="@+id/TextView03"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="2dp"
        android:text="Owner" />
</LinearLayout>

</RelativeLayout>

Answer 1

One of the main issues with an include layout is that BOTH android:layout_width and android:layout_height must be included or the layout will simply fill the screen (if for instance only the height is set, it will be ignored without setting the width as well).

So something like this should be done:

<include
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    layout="@layout/myLayout" />

Answer 2

Use Merge...

use the element as the root view for the re-usable layout

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

   <Button
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content"
     android:text="@string/add"/>

  <Button
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content"
     android:text="@string/delete"/>

</merge>

Developer Site

Answer 3

Change the outer LinearLayout width and height to fill_parent and also place a scroll bar inside it.

Answer 4

Define your include file layout_height and width for eample:

<include layout="@layout/basicinfo"     
android:layout_width="100dp"
android:layout_height="100dp"/>

Answer 5

I fount out the problem. it was because I used match_parent in basic layout. I just changed that from

android:layout_width="match_parent"
android:layout_height="match_parent"

to

android:layout_width="wrap_content"
android:layout_height="wrap_content"

thanks for help.

Answer 6

included layout is as big as the screen dimension, so the buttons are outside view area. you need to give dimension to this include layout

Answer 7

I would check layout_width and layout_height. This is mostly the point in displaying errors.