request READ_SMS permission and fetch the available messages

app/build.gradle

@@ -36,5 +36,5 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:5.24.10'
+    implementation 'com.simplemobiletools:commons:5.24.11'
 }

app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.simplemobiletools.smsmessenger">
 
+    <uses-permission android:name="android.permission.READ_SMS" />
     <uses-permission
         android:name="android.permission.USE_FINGERPRINT"
         tools:node="remove" />

app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/MainActivity.kt

@@ -1,14 +1,17 @@
 package com.simplemobiletools.smsmessenger.activities
 
 import android.content.Intent
+import android.database.Cursor
 import android.os.Bundle
+import android.provider.Telephony
 import android.view.Menu
 import android.view.MenuItem
-import com.simplemobiletools.commons.extensions.appLaunched
-import com.simplemobiletools.commons.extensions.checkAppSideloading
+import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.commons.helpers.PERMISSION_READ_SMS
 import com.simplemobiletools.commons.models.FAQItem
 import com.simplemobiletools.smsmessenger.BuildConfig
 import com.simplemobiletools.smsmessenger.R
+import com.simplemobiletools.smsmessenger.models.SMS
 
 class MainActivity : SimpleActivity() {
 
@@ -20,6 +23,14 @@ class MainActivity : SimpleActivity() {
         if (checkAppSideloading()) {
             return
         }
+
+        handlePermission(PERMISSION_READ_SMS) {
+            if (it) {
+                initMessenger()
+            } else {
+                finish()
+            }
+        }
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
@@ -36,6 +47,47 @@ class MainActivity : SimpleActivity() {
         return true
     }
 
+    private fun initMessenger() {
+        val sms = getSMSs()
+    }
+
+    private fun getSMSs(): ArrayList<SMS> {
+        val smss = ArrayList<SMS>()
+        val uri = Telephony.Sms.CONTENT_URI
+        val projection = arrayOf(
+            Telephony.Sms._ID,
+            Telephony.Sms.SUBJECT,
+            Telephony.Sms.BODY,
+            Telephony.Sms.TYPE,
+            Telephony.Sms.ADDRESS,
+            Telephony.Sms.DATE,
+            Telephony.Sms.READ
+        )
+
+        var cursor: Cursor? = null
+        try {
+            cursor = contentResolver.query(uri, projection, null, null, null)
+            if (cursor?.moveToFirst() == true) {
+                do {
+                    val id = cursor.getIntValue(Telephony.Sms._ID)
+                    val subject = cursor.getStringValue(Telephony.Sms.SUBJECT) ?: ""
+                    val body = cursor.getStringValue(Telephony.Sms.BODY)
+                    val type = cursor.getIntValue(Telephony.Sms.TYPE)
+                    val address = cursor.getStringValue(Telephony.Sms.ADDRESS)
+                    val date = (cursor.getLongValue(Telephony.Sms.DATE) / 1000).toInt()
+                    val read = cursor.getIntValue(Telephony.Sms.READ) == 1
+                    val sms = SMS(id, subject, body, type, address, date, read)
+                    smss.add(sms)
+                } while (cursor.moveToNext())
+            }
+        } catch (e: Exception) {
+            showErrorToast(e)
+        } finally {
+            cursor?.close()
+        }
+        return smss
+    }
+
     private fun launchSettings() {
         startActivity(Intent(applicationContext, SettingsActivity::class.java))
     }

app/src/main/kotlin/com/simplemobiletools/smsmessenger/models/SMS.kt

@@ -0,0 +1,3 @@
+package com.simplemobiletools.smsmessenger.models
+
+data class SMS(val id: Int, val subject: String, val body: String, val type: Int, val address: String, val date: Int, val read: Boolean)