title: Start android application from code
body: <p>I need simple start an application from my code, like Skype, or other one.
  I read some thread, on the internet, but I haven't  solution. 
  I tried this methode:</p>
  
  <pre><code>Intent startApp = new Intent("com.android.gesture.builder");
  startActivity(startApp);
  </code></pre>
  
  <p>I wrote this in try/catch blokk, and the LogCat told me: ApplicationNotFound exception handled by Intent. I read the "Hello" tutorial on the Android Developers site, but it's too comlicated, to my solution...
  I can't register this application starting activity to my manifest file.
  I think I need to implement a new class, that extends from Activity, and implement, the code above, and try again?
  Please help me, how can I start other application from my main activity easy...</p>