Membuka URL & Aplikasi Lain dari Button Android (Uri.parse)

//deklarasi variabel
String myLati = "-6.353370";
String myLongi = "106.832349";
String myPosisi = "Lp2m aray Jkt";

String myLati2 = "-6.353370";
String myLongi2 = "106.832349";
String myPosisi2 = "Lp2m aray Jkt";

//========================================================================

//parse url ke google maps
Button btnDirection= (Button) findViewById(R.id.btnDirection);
btnDirection.setOnClickListener(new View.OnClickListener() {
 @Override
  public void onClick(View arg0) {
    Intent intent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://maps.google.com/maps?saddr="+myLati+","+myLongi+"&daddr="+myLati2+","+myLongi2));
    intent.setClassName("com.google.android.apps.maps", "com.google.android.maps.MapsActivity");
    startActivity(intent);
}});

//=========================================================================
//parse url ke google maps 2
Button btnDirection= (Button) findViewById(R.id.btnDirection);
btnDirection.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View arg0) {
    Intent intent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://maps.google.com/maps?saddr="+myLati+","+myLongi+"&daddr="+myLati2+","+myLongi2));
    intent.setClassName("com.google.android.apps.maps", "com.google.android.maps.MapsActivity");
    startActivity(intent);
}});

//=========================================================================

//parse url ke youtube
Button btnYoutube= (Button) findViewById(R.id.btnYoutube);
btnYoutube.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View arg0) {
    String id = "escyh_45TrY";
    Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.youtube.com/watch?v=" + id));
    intent.putExtra("VIDEO_ID", id);
    startActivity(intent);
}});