title: change position of image view
body: <p>i can't change the position of the login button.Because when i try, it can't be moved from the original position. I' ve set the <code>android:layout_gravity</code> and <code>android:gravity</code> but i want it in a specific position.</p>
  
  <p><em>how i can set the coordinates (x,y) of the image?</em></p>
  
  <p>this is the login_fragment.xml</p>
  
  <pre><code>LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_gravity="center"
      android:gravity="center"
      android:orientation="vertical" 
  &lt;ImageView
      android:id="@+id/login"
      android:layout_width="400px"
      android:layout_height="100px"
      android:src="@drawable/login_button" /&gt;
  </code></pre>