All controls in my app are locked with the left side of the screen

All the textviews and seekbars that I dragged into the android screen in the Android ADK seem to be locked to the left side of the screen by default:

This is the xml file:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://ift.tt/nIICcg"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >


    <TextView
        android:id="@+id/freqIndxTextView_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/freqIndxTextView_string" />
    . 
    .
    .
    .
    .
    </LinearLayout>

I am supposing the problem is that I have not understood how Linearlayout works. I can move the textviews and seekbars up and down, but their left side seem to be stuck to the left edge of the screen. How do I remove this feature? Is it possible to drag and drop controls on the IDE like we can do in Visual C++?