Java tutorial
//package com.java2s; import android.content.Context; import android.content.Intent; import android.net.Uri; public class Main { public static void sendFeedback(Context context, String to, String subject, String body) { StringBuilder builder = new StringBuilder("mailto:" + Uri.encode(to)); if (subject != null) { builder.append("?subject=" + Uri.encode(Uri.encode(subject))); if (body != null) { builder.append("&body=" + Uri.encode(Uri.encode(body))); } } String uri = builder.toString(); Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse(uri)); context.startActivity(intent); } }