android - How to layout three buttons evenly located under LinearLayout? -


i have 3 buttons need located in 1 line @ bottom of screen. below code in activity xml. in order make 3 button takes space, wrap each of them inside linearlayout , set layout android:layout_weight 1 , android:layout_gravity center. 

<linearlayout         android:layout_width="match_parent"         android:layout_height="90px"         android:background="#88104502"         android:orientation="horizontal">          <linearlayout             android:layout_width="0dp"             android:layout_height="match_parent"             android:layout_gravity="center"             android:orientation="horizontal"             android:layout_weight="1">             <button                 android:id="@+id/goback"                 android:layout_width="70px"                 android:layout_height="80px"                 android:gravity="center"                 android:background="@drawable/back"                 android:onclick="tohomepage" />         </linearlayout>          <linearlayout             android:layout_width="0dp"             android:layout_height="match_parent"             android:layout_gravity="center"             android:orientation="horizontal"             android:layout_weight="1">             <button                 android:id="@+id/findplant"                 android:layout_width="70px"                 android:layout_height="80px"                 android:gravity="center"                 android:background="@drawable/flowr"                 android:onclick="toimagepage" />         </linearlayout>          <linearlayout             android:layout_width="0dp"             android:layout_height="match_parent"             android:orientation="horizontal"             android:layout_gravity="center"             android:layout_weight="1">              <button                 android:id="@+id/plantlist"                 android:layout_width="70px"                 android:layout_height="80px"                 android:gravity="center"                 android:background="@drawable/list" />         </linearlayout>     </linearlayout>

but button not located in center of linearlayout. below screenshot:

enter image description here

you can see each button located on left of linearlayout. how make them center located?

try this. use code give gravity linear layout.if not want use of linearlayout use 1 main linearlayout , give equal weight 3 buttons.

<?xml version="1.0" encoding="utf-8"?> <linearlayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:layout_width="match_parent"     android:layout_height="90px"     android:background="#88104502"     android:orientation="horizontal">  <linearlayout     android:layout_width="0dp"     android:layout_height="match_parent"     android:layout_gravity="center"     android:orientation="horizontal"     android:gravity="center"     android:layout_weight="1">     <button         android:id="@+id/goback"         android:layout_width="70px"         android:layout_height="80px"         android:gravity="center"         android:background="@mipmap/ic_launcher"         android:onclick="tohomepage" /> </linearlayout>  <linearlayout     android:layout_width="0dp"     android:layout_height="match_parent"     android:layout_gravity="center"     android:gravity="center"     android:orientation="horizontal"     android:layout_weight="1">     <button         android:id="@+id/findplant"         android:layout_width="70px"         android:layout_height="80px"         android:gravity="center"         android:background="@mipmap/ic_launcher"         android:onclick="toimagepage" /> </linearlayout>  <linearlayout     android:layout_width="0dp"     android:layout_height="match_parent"     android:orientation="horizontal"     android:layout_gravity="center"     android:gravity="center"     android:layout_weight="1">      <button         android:id="@+id/plantlist"         android:layout_width="70px"         android:layout_height="80px"         android:background="@mipmap/ic_launcher" /> </linearlayout>


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