title: Linear Layout Does not align baselines and Relative layout doesn't allow weights
body: <p>I have a Linear layout with vertical orientation in which I'm inserting several view groups. One of them is:</p>
  
  <pre><code>&lt;LinearLayout
     android:id="@+id/addedit_updowncontrol"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:layout_below="@+id/textView2"
     android:layout_marginBottom="5dp" 
     android:orientation="horizontal"&gt;
  
      &lt;Button
          android:id="@+id/addedit_btndecrement"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentTop="true"
          android:layout_alignParentLeft="true"
          android:layout_weight="0.1"
          android:text="-" /&gt;
  
      &lt;EditText
          android:id="@+id/addedit_txtQuantity"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:minWidth="90dp"
          android:layout_weight="0.4"
          android:layout_alignParentTop="true"
          android:inputType="numberDecimal" /&gt;
  
      &lt;Button
          android:id="@+id/addedit_btnIncrement"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentTop="true"
          android:layout_weight="0.1"
          android:layout_toLeftOf="@+id/addedit_units"
          android:text="+" /&gt;
  
      &lt;Spinner
          android:id="@+id/addedit_units"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
              android:layout_weight="0.4"
          android:layout_alignParentTop="true"
      android:layout_alignParentRight="true" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>This gives me a view that looks like <a href="http://gmanish.x10.mx/blog/wp-content/uploads/2011/11/LinearLayout.jpg" rel="nofollow" title="Linear Layout Screen Shot">this</a> (apologies for the link, I wish there was a better way). This is unacceptable as the Button does not align with the EditText. </p>
  
  <p>I tried switching to RelativeLayout, which gives me something like <a href="http://gmanish.x10.mx/blog/wp-content/uploads/2011/11/RelativeLayout.jpg" rel="nofollow" title="Relative Layout Screen Shot">this</a>. This is unacceptable as the two buttons (-) and (+) are not of the same width.</p>
  
  <p>I guess what I'm trying to achieve is:
  (1) The baseline of the Button is aligned with the other controls in the row.
  (2) The two button are of the same width.</p>
  
  <p>I seem to be able to achieve (1) with <a href="http://gmanish.x10.mx/blog/wp-content/uploads/2011/11/RelativeLayout.jpg" rel="nofollow" title="Relative Layout Screen Shot">RelativeLayout</a> and (2) with <a href="http://gmanish.x10.mx/blog/wp-content/uploads/2011/11/LinearLayout.jpg" rel="nofollow" title="Linear Layout Screen Shot">LinearLayout</a>. But not both.</p>
  
  <p>Can anyone help me please?</p>