MainActivity.java

public class MainActivity extends Activity {
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        actionButton();
 
    }
    void actionButton(){
        Button btn=(Button)findViewById(R.id.button1);
        btn.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Toast.makeText(getApplicationContext(), createContact(), Toast.LENGTH_SHORT).show();
 
            }
        });
    }
    String createContact(){
        ArrayList<ContentProviderOperation> ops =  new ArrayList<ContentProviderOperation>();
        ContactOperation co=new ContactOperation(this);
            ops.add(ContentProviderOperation.newInsert(
                ContactsContract.RawContacts.CONTENT_URI)
                .withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, null)
                .withValue(ContactsContract.RawContacts.ACCOUNT_NAME, null)
                .build()
            );
            co.addPhoto(ops);
            co.addContactToGroup(ops);
            contactName("Demo Contact",ops);
            contactNumber("1234567890",ops);
            return contactProvider(ops);
    }
    //### Contact provider to create a new contact
    String contactProvider(ArrayList<ContentProviderOperation> ops){
        String what;
        try{
            getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops);
            what="Contact Created ";
        }
        catch (Exception e){
            e.printStackTrace();
            what="Unable to Create Contact ";
        }
        return what;
    }
    //### Contact Name
    void contactName(String name,ArrayList<ContentProviderOperation> ops){
         ops.add(ContentProviderOperation.newInsert(
                    ContactsContract.Data.CONTENT_URI)
                    .withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
                    .withValue(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE)
                    .withValue(ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME,name).build()
                );
    }
    //### Contact Number
    void contactNumber(String no,ArrayList<ContentProviderOperation> ops){
         ops.add(ContentProviderOperation.
                    newInsert(ContactsContract.Data.CONTENT_URI)
                    .withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
                    .withValue(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)
                    .withValue(ContactsContract.CommonDataKinds.Phone.NUMBER, no)
                    .withValue(ContactsContract.CommonDataKinds.Phone.TYPE, ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE) .build()
                );
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
 
}