title: Android Studio Emulator: emulator shows only "android" text
body: <p>I am learning Android with tutorial from his page, and I have problem in part: <a href="http://developer.android.com/training/basics/firstapp/running-app.html" rel="nofollow noreferrer" title="Running Your App">Running Your App</a> chapter. When I see <code>activity_my.xml</code> preview I see "Hello world" text, but when I run application and see emulated device, emulator shows device with only black page and "android" text. I think I can't start it properly, but in Android Studio console I see:</p>
  
  <pre><code>C:\Users\Abc\AppData\Local\Android\sdk\tools\emulator.exe 
  -avd Nexus_4_cale -netspeed full -netdelay none
  
  creating window 208 44 800 480
  emulator: emulator window was out of view and was recentered
  </code></pre>
  
  <p>So it seems to be ok. But if I choose to edit "app" configuration, in <code>Target Device / Emulator</code> I see that <code>Prefer Adroid Virtual Device</code>, in my calse, called "Nexus_4_cale", is red. But if I edit this device there is no errors etc.. I don't know what's happening, and I will be happy if anybody would like to help me with this problem - thank you in advance.</p>
  
  <p>That is how it looks in emulator:
  <img src="https://i.stack.imgur.com/oc2TX.png" alt="Emulator"></p>
  
  <p>And that is how it looks in Android Studio preview:
  <img src="https://i.stack.imgur.com/3wXSq.png" alt="Preview_in_IDE"></p>
  
  <p>And that is configuration, with red device but with no explanation:
  <img src="https://i.stack.imgur.com/xMN7L.png" alt="configuration"></p>
  
  <p>Code for <code>activity_my.xml</code>:</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:paddingLeft="@dimen/activity_horizontal_margin"
  android:paddingRight="@dimen/activity_horizontal_margin"
  android:paddingTop="@dimen/activity_vertical_margin"
  android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MyActivity"&gt;
  
  &lt;TextView android:text="@string/hello_world" android:layout_width="wrap_content"
      android:layout_height="wrap_content" /&gt;
  </code></pre>
  
  <p></p>
  
  <p>And code for <code>MyActivity.java</code> class:</p>
  
  <pre><code>package com.example.abc.android3;
  
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.MenuItem;
  
  
  public class MyActivity extends ActionBarActivity {
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_my);
  }
  
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.menu_my, menu);
      return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle action bar item clicks here. The action bar will
      // automatically handle clicks on the Home/Up button, so long
      // as you specify a parent activity in AndroidManifest.xml.
      int id = item.getItemId();
  
      //noinspection SimplifiableIfStatement
      if (id == R.id.action_settings) {
          return true;
      }
  
      return super.onOptionsItemSelected(item);
  }
  }
  </code></pre>
  
  <p>All code is generated by Android Studio</p>