LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LinearLayout addLinear = null;
addLinear = (LinearLayout) inflater.inflate(R.layout.newLayout, null);
EditText edit_id= (EditText) addLinear.findViewById(R.id.edit_id);
.
.
.
LinearLayout parent= (LinearLayout) findViewById(R.id.parent);
parent.addView(addLinear);