title: How to achieve alignParentBottom="true" property in LinearLayout
body: <p>If i want to set an image to the bottom of any screen then we can use <code>android:layout_alignParentBottom="true"</code> in relative layout. But because of some reason i am bound to use LinearLayout.  There are other views (button, image button, listview) in the screen also. I want to place image at the bottom of my screen. Whatever may be the situation user wil be able to see this imageview at the bottom of the screen. How to achieve <code>alignParentBottom="true"</code> property in LinearLayout. See the folowing sample xml. I am using example1.xml but i want look and file that of example2.xml</p>
  
  <p><strong>example1.xml</strong></p>
  
  <p><img src="https://i.stack.imgur.com/Xj9rJ.png" alt="enter image description here">   </p>
  
  <pre><code>  &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"&gt;
      &lt;TextView
          android:id="@+id/textview1"
          android:layout_width="fill_parent"
          android:layout_height="40dip"
          android:background="#ffffff"
          android:textColor="#000000"
          android:text="I am sunil" 
          android:gravity="bottom"/&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p><strong>example2.xml</strong></p>
  
  <pre><code>&lt;
  
  ?xml version="1.0" encoding="utf-8"?&gt;
  
      &lt;RelativeLayout
          xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"&gt;
          &lt;TextView
              android:id="@+id/textview1"
              android:layout_width="fill_parent"
              android:layout_height="40dip"
              android:background="#ffffff"
              android:textColor="#000000"
              android:text="I am sunil" 
              android:layout_alignParentBottom="true"/&gt;
  
      &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>Thanks</p>