added Regex to find amout in conversations

app/src/main/AndroidManifest.xml

@@ -2,13 +2,16 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="tech.risinglight.financebuddy">
 
+    <uses-permission android:name="android.permission.READ_SMS" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <activity android:name=".ExpenseManagerActivity"></activity>
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/tech/risinglight/financebuddy/Conversation.kt

@@ -0,0 +1,41 @@
+package tech.risinglight.financebuddy
+
+import android.content.Context
+import android.provider.Telephony
+import java.util.*
+import kotlin.collections.ArrayList
+
+class Conversation(val number: String, val message: List<Message>)
+class Message(val number: String, val body: String, val date: Date)
+
+fun getSmsConversation(context: Context, number: String? = null, completion: (conversations: List<Conversation>?) -> Unit) {
+    val cursor = context.contentResolver.query(Telephony.Sms.CONTENT_URI, null, null, null, null)
+
+    val numbers = ArrayList<String>()
+    val messages = ArrayList<Message>()
+    var results = ArrayList<Conversation>()
+
+    while (cursor != null && cursor.moveToNext()) {
+        val smsDate = cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Sms.DATE))
+        val number = cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Sms.ADDRESS))
+        val body = cursor.getString(cursor.getColumnIndexOrThrow(Telephony.Sms.BODY))
+
+        numbers.add(number)
+        messages.add(Message(number, body, Date(smsDate.toLong())))
+    }
+
+    cursor?.close()
+
+    numbers.forEach { number ->
+        if (results.find { it.number == number } == null) {
+            val msg = messages.filter { it.number == number }
+            results.add(Conversation(number = number, message = msg))
+        }
+    }
+
+    if (number != null) {
+        results = results.filter { it.number == number } as ArrayList<Conversation>
+    }
+
+    completion(results)
+}

app/src/main/java/tech/risinglight/financebuddy/ExpenseManagerActivity.kt

@@ -0,0 +1,64 @@
+package tech.risinglight.financebuddy
+
+import android.database.Cursor
+import android.net.Uri
+import android.os.AsyncTask
+import android.os.Bundle
+import android.util.Log
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+
+
+class ExpenseManagerActivity : AppCompatActivity() {
+    val map: HashMap<String,String> = HashMap()
+    val regex: Regex = Regex("""((?:Rs.)\s*(\d+,*\d*(?:\.\d{2})?))""")
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_expense_manager)
+//
+        AsyncTask.execute {
+           // readSMS()
+            getSmsConversation(this){ conversations ->
+                conversations?.forEach { conversation ->
+                   // println("Number: ${conversation.number}")
+                    conversation.message.forEach { message ->
+                        var matches = regex.findAll(message.body)
+                       // print((matches!!.value))
+                       matches.forEach {
+
+                            Log.d(conversation.number,it.value)
+                        }
+                        //println("Message : ${it.body}")
+                    }
+
+                }
+            }
+        }
+
+    }
+/*
+    private fun readSMS() {
+        val cursor: Cursor? =
+            contentResolver.query(Uri.parse("content://sms/inbox"), null, null, null, null)
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) { // must check the result to prevent exception
+                do {
+                    var msgData = ""
+                    for (idx in 0 until cursor.columnCount) {
+                        msgData += " " + cursor.getColumnName(idx).toString() + ":" + cursor.getString(idx)
+
+                        var sender: String = msgData.substring()
+                        map.put()
+                    }
+                    // use msgData
+                    Log.d("MSG",msgData)
+                } while (cursor.moveToNext())
+            } else { // empty box, no SMS
+                Toast.makeText(applicationContext, "No SMS Found!",Toast.LENGTH_SHORT).show()
+            }
+        }
+    }*/
+
+}

app/src/main/java/tech/risinglight/financebuddy/MainActivity.kt

@@ -1,12 +1,14 @@
 package tech.risinglight.financebuddy
 
+import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.graphics.Typeface
 import androidx.core.app.ComponentActivity.ExtraData
 import androidx.core.content.ContextCompat.getSystemService
 import android.icu.lang.UCharacter.GraphemeClusterBreak.T
 import kotlinx.android.synthetic.main.activity_main.*
+import kotlinx.android.synthetic.main.layout_main.*
 
 
 class MainActivity : AppCompatActivity() {
@@ -16,5 +18,9 @@ class MainActivity : AppCompatActivity() {
         setContentView(R.layout.activity_main)
         val type = Typeface.createFromAsset(assets, "lobster.ttf")
         textView.typeface = type
+
+        expenseManagerCV.setOnClickListener {
+            startActivity( Intent(applicationContext, ExpenseManagerActivity::class.java))
+        }
     }
 }

app/src/main/res/layout/activity_expense_manager.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ExpenseManagerActivity">
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/layout_main.xml

@@ -32,7 +32,7 @@
             app:cardBackgroundColor="@color/colorCard"
             app:cardCornerRadius="16dp"
             app:cardElevation="2dp"
-            app:layout_constraintEnd_toStartOf="@+id/card2"
+            app:layout_constraintEnd_toStartOf="@+id/expenseManagerCV"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/textView2">
@@ -61,7 +61,7 @@
         </androidx.cardview.widget.CardView>
 
         <androidx.cardview.widget.CardView
-            android:id="@+id/card2"
+            android:id="@+id/expenseManagerCV"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_margin="16dp"
@@ -145,7 +145,7 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toEndOf="@+id/card3"
-            app:layout_constraintTop_toBottomOf="@+id/card2">
+            app:layout_constraintTop_toBottomOf="@+id/expenseManagerCV">
 
             <LinearLayout
                 android:layout_width="wrap_content"

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

@@ -1,7 +1,7 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>