Java tutorial
//package com.java2s; import android.content.Context; import android.content.Intent; import android.net.Uri; import android.text.TextUtils; public class Main { public static void sendSmsBySystem(Context context, String phone, String body) { if (TextUtils.isEmpty(phone)) return; Uri uri = Uri.parse("smsto:" + phone); Intent intent = new Intent(Intent.ACTION_SENDTO, uri); intent.putExtra("sms_body", body); context.startActivity(intent); } }