sms.java

public class sms extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sms);
    }

    public void composeMmsMessage(String message, Uri attachment) {
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setData(Uri.parse("smsto:77000"));  // This ensures only SMS apps respond
        intent.putExtra("sms_body","Reg supa");
//        intent.putExtra(Intent.EXTRA_STREAM, attachment);
        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivity(intent);
        }
    }

}