title: Android Studio: "My First App" does not work
body: <p>I'm definitely new to Android development.</p>
  
  <p>I'm following along this tutorial: <a href="https://developer.android.com/training/basics/firstapp/running-app.html" rel="nofollow">https://developer.android.com/training/basics/firstapp/running-app.html</a>, and it seems I can't run the app on the AVD because I don't see the application launcher icon nor the "Hello world" text. It does not show in the Apps Menu nor in the "Manage my apps" window.</p>
  
  <p>I'm running an emulator for a 3.2 QVGA phone with API Level 22 (Android 5.1.1) using the armeabi-v7a ABI.</p>
  
  <p>Here's the code I got:</p>
  
  <p><strong>AndroidManifest.xml:</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.example.gregory.myfirstapp" &gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@mipmap/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;activity
              android:name=".MyActivity"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p><strong>MyActivity.java:</strong></p>
  
  <pre><code>package com.example.gregory.myfirstapp;
  
  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><strong>activity_my.xml</strong>:</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;
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p><strong>menu_my.xml:</strong></p>
  
  <pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools" 
      tools:context=".MyActivity"&gt;
  
      &lt;item android:id="@+id/action_settings" 
      android:title="@string/action_settings"
          android:orderInCategory="100" app:showAsAction="never" /&gt;
  &lt;/menu&gt;
  </code></pre>
  
  <p>Please help me out here!</p>