Add saving call logs to text file in download folder

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+.idea/

app/.gitignore

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+/build

app/build.gradle.kts

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+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+}
+
+android {
+    namespace = "com.shreekaram.calllogger"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.shreekaram.calllogger"
+        minSdk = 28
+        targetSdk = 34
+        versionCode = 2
+        versionName = "1.1"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+    buildFeatures {
+        compose = true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.1"
+    }
+    packaging {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+        }
+    }
+}
+
+dependencies {
+
+    implementation("androidx.core:core-ktx:1.10.1")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.1")
+    implementation("androidx.activity:activity-compose:1.7.0")
+    implementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.ui:ui-graphics")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.compose.material3:material3")
+    implementation("androidx.work:work-runtime-ktx:2.9.0")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+    androidTestImplementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
+    debugImplementation("androidx.compose.ui:ui-tooling")
+    debugImplementation("androidx.compose.ui:ui-test-manifest")
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/shreekaram/calllogger/ExampleInstrumentedTest.kt

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+package com.shreekaram.calllogger
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.shreekaram.calllogger", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.READ_CALL_LOG" />
+    <uses-permission android:name="android.permission.READ_CONTACTS" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission
+        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="32" />
+    <uses-permission
+        android:name="android.permission.READ_EXTERNAL_STORAGE"
+        android:maxSdkVersion="32" />
+    <uses-permission
+        android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.CallLogger"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:theme="@style/Theme.CallLogger">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+
+
+        <receiver
+            android:name=".CallStateReceiver"
+            android:enabled="true"
+            android:exported="true"
+            android:permission="android.permission.READ_PHONE_STATE">
+            <intent-filter>
+                <action android:name="android.intent.action.PHONE_STATE" />
+            </intent-filter>
+        </receiver>
+    </application>
+
+
+</manifest>

app/src/main/java/com/shreekaram/calllogger/CallLogWorker.kt

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+package com.shreekaram.calllogger
+
+import android.Manifest
+import android.app.Notification
+import android.app.NotificationManager
+import android.content.ContentValues
+import android.content.Context
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Environment
+import android.provider.CallLog
+import android.provider.MediaStore
+import android.text.format.DateUtils
+import androidx.core.app.ActivityCompat
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+import java.io.File
+import java.io.OutputStream
+import kotlin.streams.asSequence
+
+class CallLogWorker(context: Context, workerParams: WorkerParameters) : Worker(context, workerParams) {
+    override fun doWork(): Result {
+        //                            empty list if Call record
+        val callRecords = mutableListOf<CallRecord>()
+//                            val dateFrom = "1703751885344"
+//                           access call logs
+        val cursor =  applicationContext.contentResolver.query(
+            CallLog.Calls.CONTENT_URI,
+            null,
+            null,
+            null,
+            CallLog.Calls.DATE + " DESC"
+        )
+//                            val cursor = contentResolver.query(
+//                                CallLog.Calls.CONTENT_URI,
+//                                null,
+//                                "${CallLog.Calls.DATE} >= ?",
+//                                arrayOf(dateFrom),
+//                                CallLog.Calls.DATE + " DESC"
+//                            )
+
+        cursor?.use {
+            val number = it.getColumnIndex(CallLog.Calls.NUMBER)
+            val type = it.getColumnIndex(CallLog.Calls.TYPE)
+            val date = it.getColumnIndex(CallLog.Calls.DATE)
+            val duration = it.getColumnIndex(CallLog.Calls.DURATION)
+            val name = it.getColumnIndex(CallLog.Calls.CACHED_NAME)
+
+
+            while (it.moveToNext()) {
+                val phoneNumber = it.getString(number)
+                val callType = it.getString(type)
+
+                var callDate = it.getString(date)
+                //convert date to human readable format
+//                                    callDate = DateUtils.formatDateTime(
+//                                        applicationContext,
+//                                        callDate.toLong(),
+//                                        DateUtils.FORMAT_SHOW_DATE or DateUtils.FORMAT_SHOW_YEAR or DateUtils.FORMAT_SHOW_TIME
+//                                    )
+
+                val callDuration = it.getString(duration)
+                val callerName = it.getString(name)?:"Unknown"
+                callRecords.add(
+                    CallRecord(
+                        callerName,
+                        phoneNumber,
+                        callType,
+                        callDate,
+                        callDuration
+                    )
+                )
+            }
+
+        }
+        cursor?.close()
+        println(callRecords)
+
+        // store the call records into file
+        // human readable date format with file name
+       val time= DateUtils.formatDateTime(
+            applicationContext,
+            System.currentTimeMillis(),
+            DateUtils.FORMAT_SHOW_TIME
+        )
+
+
+        val fileName = "callRecords_$time.txt"
+        println("Printing file name $fileName")
+        val content=callRecords.toString()
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            val resolver = applicationContext.contentResolver
+            val contentValues = ContentValues().apply {
+                put(MediaStore.MediaColumns.DISPLAY_NAME, fileName)
+                put(MediaStore.MediaColumns.MIME_TYPE, "text/plain")
+                put(MediaStore.MediaColumns.RELATIVE_PATH, Environment.DIRECTORY_DOWNLOADS)
+            }
+
+            val uri = resolver.insert(MediaStore.Files.getContentUri("external"), contentValues)
+            uri?.let {
+                val outputStream: OutputStream? = resolver.openOutputStream(it)
+                outputStream?.bufferedWriter()?.use { it.write(content) }
+//                                    close stream
+                outputStream?.close()
+            }
+
+
+        } else {
+            val downloadsDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
+            val file = File(downloadsDirectory, fileName)
+            file.writeText(content)
+        }
+
+        val notification= NotificationCompat.Builder(applicationContext,"call_logger")
+            .setSmallIcon(R.drawable.ic_launcher_foreground)
+            .setContentTitle("Call Log file $fileName")
+            .setContentText("Saved to Downloads. Good day to you!")
+            .setPriority(NotificationCompat.PRIORITY_DEFAULT)
+            .build()
+
+        with(NotificationManagerCompat.from(applicationContext)){
+            if (ActivityCompat.checkSelfPermission(
+                    applicationContext,
+                    Manifest.permission.POST_NOTIFICATIONS
+                ) != PackageManager.PERMISSION_GRANTED
+            ) {
+                return@with
+            }
+
+//            generate random int for notification id
+            val notificationId=(0..100).random()
+
+            notify(notificationId,notification)
+        }
+
+        return Result.success()
+    }
+}

app/src/main/java/com/shreekaram/calllogger/CallStateReceiver.kt

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+package com.shreekaram.calllogger
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.telephony.TelephonyManager
+import android.util.Log
+
+class CallStateReceiver : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+        if (intent.action == TelephonyManager.ACTION_PHONE_STATE_CHANGED) {
+            val state = intent.getStringExtra(TelephonyManager.EXTRA_STATE)
+            val incomingNumber = intent.getStringExtra(TelephonyManager.EXTRA_VOICEMAIL_NUMBER)
+            Log.d("CallStateReceiver", state.toString())
+            Log.d("CallStateReceiver", incomingNumber.toString())
+            when (state) {
+                TelephonyManager.EXTRA_STATE_RINGING -> {
+                    // The phone is ringing
+                    Log.d("CallStateReceiver", "Incoming call from $incomingNumber")
+                }
+                TelephonyManager.EXTRA_STATE_OFFHOOK -> {
+                    // A call is dialing, active or on hold
+                    Log.d("CallStateReceiver", "Call answered")
+                }
+                TelephonyManager.EXTRA_STATE_IDLE -> {
+                    // The phone is idle
+                    Log.d("CallStateReceiver", "Call ended")
+
+                }
+            }
+        }
+    }
+}