Send Email Feedback Intent in Kotlin for Android.

EmailFeedback.kt

/*
 * Copyright 2019 Andrius Baruckis www.baruckis.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.content.ActivityNotFoundException
import android.content.Context
import android.content.Intent
import android.net.Uri
import android.util.Log
import android.widget.Toast
import androidx.core.content.ContextCompat.startActivity


fun sendEmailFeedback(context: Context, appVersionName: String = "") {

    val to = "your@email.com"
    val subject = "User Feedback for Android $appVersionName"
    val body = "My feedback: "

    val uriBuilder = StringBuilder("mailto:" + Uri.encode(to))
    uriBuilder.append("?subject=" + Uri.encode(subject))
    uriBuilder.append("&body=" + Uri.encode(body))
    val uriString = uriBuilder.toString()

    val intent = Intent(Intent.ACTION_SENDTO, Uri.parse(uriString))

    try {
        startActivity(context, intent, null)
    } catch (e: Exception) {
        Log.e("LOG_TAG", e.localizedMessage)

        // If there is no email client application, than show error message for the user.
        if (e is ActivityNotFoundException) {
            Toast.makeText(
                    context,
                    "No application can handle this request. Please install an email client app.",
                    Toast.LENGTH_LONG).show()
        }
    }
}