title: Button and textviews not being shown on Android emulator
body: <p>I have two linear layouts within a relative layout. The spinner in the code is showing, but neither of the textviews nor the button are shown in the emulator. I've tried messing around with different layout attributes with no success thus far. Can someone help me?</p>
  
  <pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:paddingBottom="@dimen/activity_vertical_margin"
  android:paddingLeft="@dimen/activity_horizontal_margin"
  android:paddingRight="@dimen/activity_horizontal_margin"
  android:paddingTop="@dimen/activity_vertical_margin"
  tools:context="com.example.gymtracker.WorkoutActivity$PlaceholderFragment" &gt;
  
  &lt;Spinner
      android:id="@+id/spinner1"
      android:layout_width="200dp"
      android:layout_height="80dp"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true" /&gt;
  
  &lt;LinearLayout
      android:layout_width="90dp"
      android:layout_height="wrap_content"
      android:layout_alignTop="@+id/linearLayout1"
      android:layout_marginLeft="16dp"
      android:layout_toRightOf="@+id/linearLayout1"
      android:orientation="vertical" &gt;
  
      &lt;EditText
          android:id="@+id/editText2"
          android:layout_width="80dp"
          android:layout_height="wrap_content"
          android:hint="Reps"
          android:inputType="numberDecimal" /&gt;
  
  &lt;/LinearLayout&gt;
  
  &lt;LinearLayout
      android:id="@+id/linearLayout1"
      android:layout_width="90dp"
      android:layout_height="wrap_content"
      android:layout_below="@+id/spinner1"
      android:layout_marginTop="34dp"
      android:layout_toLeftOf="@+id/button1"
      android:orientation="vertical" &gt;
  
      &lt;EditText
          android:id="@+id/editText1"
          android:layout_width="80dp"
          android:layout_height="wrap_content"
          android:layout_gravity="left"
          android:hint="Weight"
          android:inputType="numberDecimal" &gt;
  
          &lt;requestFocus /&gt;
      &lt;/EditText&gt;
  &lt;/LinearLayout&gt;
  
  &lt;Button
      android:id="@+id/button1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentBottom="true"
      android:layout_centerHorizontal="true"
      android:layout_marginBottom="88dp"
      android:onClick="newReps"
      android:text="+" /&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>