Layout Change Visibility

Question

I'm trying to develop an Augmented Reality aplication for Android using Metaio. But actually I've a problem. I want to make a little menu appear when the aplication recongize a marker.

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

 <ImageButton
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:background="@android:color/transparent"
    android:onClick="onButtonClick"
    android:contentDescription="@null"
    android:src="@drawable/cancel" />

<LinearLayout
    android:id="@+id/buttonBar123"
    style="@android:style/ButtonBar"
    android:layout_width="300dp"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="10dp"
    android:visibility="invisible"
    android:orientation="horizontal"
    android:gravity="center">

    <Button
        android:id="@+id/TextoButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:onClick="onTextoButtonClick"
        android:text="Texto" />

    <Button
        android:id="@+id/ImageButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:onClick="onImagemButtonClick"
        android:text="Imagem" />


</LinearLayout>

</RelativeLayout>

My layout is on a View and I don't know how to change the ButtonBar123 to visible in Java code. Can you help me? Thanks

Answer 1

You just need to get a reference to your Layout

LinearLayout buttonBar = (LinearLayout) findViewById(R.id.buttonBar123);

then set the visibility

buttonBar.setVisibility(View.VISIBLE);

Visibility