Although some elements of telephony development can be quite complicated, Android provides a built-in Phone Application that we can call on from our own applications by making use of an Intent object to call an activity in one application from another.
This is a quick and easy exercise with very little coding and a single class. Start up a new project with Eclipse and open up the main Java activity source.
There are just three lines to add to our
onCreate()method and they can be seen here beneath thesetContentView()statement:@Override public void onCreate(Bundle state) { super.onCreate(state); setContentView(R.layout.main); Intent intent = new Intent(Intent.ACTION_DIAL); intent.setData(Uri.parse("content://contacts/people/13")); startActivity(intent); }That really is all there is to it. Run the project on a handset to test this properly. If you have fewer than 13 contacts on your phone, adjust the value in the code to accommodate...