Android linear layout align center and right

Question

This is what I have:

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/LinearLayout01"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#FFFFFF">
    <LinearLayout android:id="@+id/LinearLayout01"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="horizontal"
        android:background="#E30000"
        android:layout_gravity="center_horizontal|center_vertical"
        android:gravity="center_horizontal|center_vertical">
        <TextView 
            android:id="@+id/TextView00"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#FFFFFF"
            android:textSize="20px"
            android:textStyle="bold"
            android:text="Something"
            android:gravity="right|center_vertical"
            />
        <LinearLayout android:id="@+id/LinearLayout01"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="horizontal"
            android:gravity="right|center_vertical"
            android:layout_gravity="center_vertical"
            android:background="#E30000">
            <Button 
                android:id="@+id/btnCalls"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:drawableLeft="@drawable/icon"
                android:gravity="right|center_vertical"
            />
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

And I want this:

So horizontal center align the text and vertical center align the button.

What am I missing? I haven't tried RelativeLayout and I would prefer LinearLayout to work this out.

Answer 1

android:gravity="right|center_vertical"

aligns your TextView to the right. How about center_horizontal?

And your LinearLayouts have the same ID, if there is not more code, then I would delete one of them.

Answer 2

I found none of the answers work exactly as the OP intended, but the RelativeLayout solution was the closest one. Except that the TextView wasn't centered. But, with layout_centerInParent=true, works like a charm:

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView 
         android:id="@+id/TextView00"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:textColor="#FFFFFF"
         android:textSize="20px"
         android:textStyle="bold"
         android:text="Something"
         android:layout_centerInParent="true" />

    <Button 
         android:id="@+id/btnCalls"
         android:drawableLeft="@drawable/icon"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignParentRight="true"/>
</RelativeLayout>