Send out email

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright (c) 2012 Manning
  See the file license.txt for copying permission.
-->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:gravity="center"
        android:onClick="sendFeedback"
        android:text="Send Feedback" />

</RelativeLayout>

/*******************************************************************************
 * Copyright (c) 2012 Manning/*from  w ww  .  ja v a  2  s.  c  o m*/
 * See the file license.txt for copying permission.
 ******************************************************************************/

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.telephony.TelephonyManager;
import android.content.Context;
import android.content.Intent;


import android.app.Activity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends Activity {

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

  public void sendFeedback(View v) {
    LaunchEmailUtil.launchEmailToIntent(this);
  }
}

class EnvironmentInfoUtil {

  public static String getApplicationInfo(Context context) {
    return String.format("%s\n%s\n%s\n%s\n%s\n%s\n",
        getCountry(context), getBrandInfo(), getModelInfo(),
        getDeviceInfo(), getVersionInfo(context), getLocale(context));
  }

  public static String getCountry(Context context) {
    TelephonyManager mTelephonyMgr = (TelephonyManager) context
        .getSystemService(Context.TELEPHONY_SERVICE);
    return String.format("Country: %s",
        mTelephonyMgr.getNetworkCountryIso());
  }

  public static String getModelInfo() {
    return String.format("Model: %s", Build.MODEL);
  }

  public static String getBrandInfo() {
    return String.format("Brand: %s", Build.BRAND);
  }

  public static String getDeviceInfo() {
    return String.format("Device: %s", Build.DEVICE);
  }

  public static String getLocale(Context context) {
    return String.format("Locale: %s", context.getResources()
        .getConfiguration().locale.getDisplayName());
  }

  public static String getVersionInfo(Context context) {
    String version = null;

    try {
      PackageInfo info = context.getPackageManager().getPackageInfo(
          context.getPackageName(), 0);
      version = info.versionName + " (release " + info.versionCode
          + ")";
    } catch (NameNotFoundException e) {
      version = "not_found";
    }

    return String.format("Version: %s", version);
  }
}
class LaunchEmailUtil {

  public static void launchEmailToIntent(Context context) {
    Intent msg = new Intent(Intent.ACTION_SEND);

    StringBuilder body = new StringBuilder("\n\n----------\n");
    body.append(EnvironmentInfoUtil.getApplicationInfo(context));

    msg.putExtra(Intent.EXTRA_EMAIL,"feed@back.com".split(", "));
    msg.putExtra(Intent.EXTRA_SUBJECT,"feedback_subject");
    msg.putExtra(Intent.EXTRA_TEXT, body.toString());

    msg.setType("message/rfc822");
    context.startActivity(Intent.createChooser(msg,"send email"));
  }
}