show a notification at receiving an SMS

app/src/main/kotlin/com/simplemobiletools/smsmessenger/extensions/Context.kt

@@ -160,7 +160,7 @@ fun Context.getNameFromPhoneNumber(number: String): Int? {
     return null
 }
 
-fun Context.insertNewSMS(address: String, subject: String, body: String, date: Long) {
+fun Context.insertNewSMS(address: String, subject: String, body: String, date: Long, threadID: Long) {
     val uri = Telephony.Sms.CONTENT_URI
     val contentValues = ContentValues().apply {
         put(Telephony.Sms.ADDRESS, address)
@@ -168,6 +168,7 @@ fun Context.insertNewSMS(address: String, subject: String, body: String, date: L
         put(Telephony.Sms.BODY, body)
         put(Telephony.Sms.DATE, date)
         put(Telephony.Sms.READ, 0)
+        put(Telephony.Sms.THREAD_ID, threadID)
         put(Telephony.Sms.TYPE, Telephony.Sms.MESSAGE_TYPE_INBOX)
     }
 

app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/SmsReceiver.kt

@@ -1,14 +1,31 @@
 package com.simplemobiletools.smsmessenger.receivers
 
+import android.annotation.SuppressLint
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
+import android.media.AudioAttributes
+import android.media.AudioManager
+import android.media.RingtoneManager
 import android.provider.Telephony
+import androidx.core.app.NotificationCompat
+import com.simplemobiletools.commons.helpers.isMarshmallowPlus
+import com.simplemobiletools.commons.helpers.isOreoPlus
+import com.simplemobiletools.smsmessenger.R
+import com.simplemobiletools.smsmessenger.activities.ThreadActivity
 import com.simplemobiletools.smsmessenger.extensions.insertNewSMS
+import com.simplemobiletools.smsmessenger.helpers.THREAD_ID
+import com.simplemobiletools.smsmessenger.helpers.THREAD_NAME
+import com.simplemobiletools.smsmessenger.helpers.THREAD_NUMBER
 import com.simplemobiletools.smsmessenger.models.Events
 import org.greenrobot.eventbus.EventBus
 
 class SmsReceiver : BroadcastReceiver() {
+    @SuppressLint("NewApi")
     override fun onReceive(context: Context, intent: Intent) {
         val messages = Telephony.Sms.Intents.getMessagesFromIntent(intent)
         messages.forEach {
@@ -16,9 +33,61 @@ class SmsReceiver : BroadcastReceiver() {
             val subject = it.pseudoSubject
             val body = it.messageBody
             val date = it.timestampMillis
-            context.insertNewSMS(address, subject, body, date)
+            val threadID = if (isMarshmallowPlus()) {
+                Telephony.Threads.getOrCreateThreadId(context, address)
+            } else {
+                0
+            }
+
+            context.insertNewSMS(address, subject, body, date, threadID)
+            showNotification(context, address, body, threadID.toInt())
         }
 
         EventBus.getDefault().post(Events.RefreshMessages())
     }
+
+    @SuppressLint("NewApi")
+    private fun showNotification(context: Context, address: String, body: String, threadID: Int) {
+        val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+        val soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
+        val channelId = "simple_sms_messenger"
+        if (isOreoPlus()) {
+            val audioAttributes = AudioAttributes.Builder()
+                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
+                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+                .setLegacyStreamType(AudioManager.STREAM_NOTIFICATION)
+                .build()
+
+            val name = context.getString(R.string.channel_received_sms)
+            val importance = NotificationManager.IMPORTANCE_HIGH
+            NotificationChannel(channelId, name, importance).apply {
+                setBypassDnd(false)
+                enableLights(true)
+                setSound(soundUri, audioAttributes)
+                notificationManager.createNotificationChannel(this)
+            }
+        }
+
+        val intent = Intent(context, ThreadActivity::class.java).apply {
+            putExtra(THREAD_ID, threadID)
+            putExtra(THREAD_NAME, address)
+            putExtra(THREAD_NUMBER, address)
+        }
+
+        val pendingIntent = PendingIntent.getActivity(context, threadID, intent, PendingIntent.FLAG_UPDATE_CURRENT)
+
+        val builder = NotificationCompat.Builder(context, channelId)
+            .setContentTitle(address)
+            .setContentText(body)
+            .setSmallIcon(R.drawable.ic_launcher_foreground)
+            .setContentIntent(pendingIntent)
+            .setPriority(NotificationCompat.PRIORITY_MAX)
+            .setDefaults(Notification.DEFAULT_LIGHTS)
+            .setCategory(Notification.CATEGORY_MESSAGE)
+            .setAutoCancel(true)
+            .setSound(soundUri, AudioManager.STREAM_NOTIFICATION)
+            .setChannelId(channelId)
+
+        notificationManager.notify(threadID, builder.build())
+    }
 }

app/src/main/res/values/strings.xml

@@ -3,4 +3,7 @@
     <string name="app_launcher_name">SMS Messenger</string>
     <string name="type_a_message">Type a message…</string>
     <string name="message_not_sent">Message has not been sent.</string>
+
+    <!-- Notifications -->
+    <string name="channel_received_sms">Received SMS</string>
 </resources>