adding an initial implementation of the incoming call notification

app/build.gradle

@@ -57,7 +57,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:5.26.27'
+    implementation 'com.simplemobiletools:commons:5.26.28'
     implementation 'joda-time:joda-time:2.10.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta4'
     implementation 'com.googlecode.ez-vcard:ez-vcard:0.10.5'

app/src/main/AndroidManifest.xml

@@ -265,6 +265,25 @@
             </intent-filter>
         </activity>
 
+        <service
+            android:name=".services.CallService"
+            android:permission="android.permission.BIND_INCALL_SERVICE">
+            <meta-data
+                android:name="android.telecom.IN_CALL_SERVICE_UI"
+                android:value="true" />
+
+            <intent-filter>
+                <action android:name="android.telecom.InCallService"/>
+            </intent-filter>
+        </service>
+
+        <receiver android:name=".receivers.CallActionReceiver">
+            <intent-filter>
+                <action android:name="com.simplemobiletools.contacts.action.ACCEPT_CALL"/>
+                <action android:name="com.simplemobiletools.contacts.action.DECLINE_CALL"/>
+            </intent-filter>
+        </receiver>
+
         <provider
             android:name="androidx.core.content.FileProvider"
             android:authorities="${applicationId}.provider"

app/src/main/kotlin/com/simplemobiletools/contacts/pro/activities/CallActivity.kt

@@ -1,11 +1,26 @@
 package com.simplemobiletools.contacts.pro.activities
 
+import android.annotation.SuppressLint
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.content.Intent
 import android.os.Bundle
+import android.widget.RemoteViews
+import androidx.core.app.NotificationCompat
+import com.simplemobiletools.commons.extensions.notificationManager
+import com.simplemobiletools.commons.extensions.setText
 import com.simplemobiletools.commons.extensions.updateTextColors
+import com.simplemobiletools.commons.helpers.isOreoPlus
 import com.simplemobiletools.contacts.pro.R
+import com.simplemobiletools.contacts.pro.helpers.ACCEPT_CALL
+import com.simplemobiletools.contacts.pro.helpers.DECLINE_CALL
+import com.simplemobiletools.contacts.pro.receivers.CallActionReceiver
 import kotlinx.android.synthetic.main.activity_call.*
 
 class CallActivity : SimpleActivity() {
+    private val CALL_NOTIFICATION_ID = 1
 
     override fun onCreate(savedInstanceState: Bundle?) {
         supportActionBar?.hide()
@@ -14,6 +29,12 @@ class CallActivity : SimpleActivity() {
 
         updateTextColors(call_holder)
         initButtons()
+        showNotification()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        notificationManager.cancel(CALL_NOTIFICATION_ID)
     }
 
     private fun initButtons() {
@@ -24,4 +45,55 @@ class CallActivity : SimpleActivity() {
         call_toggle_speaker.setOnClickListener { }
         call_dialpad.setOnClickListener { }
     }
+
+    @SuppressLint("NewApi")
+    private fun showNotification() {
+        val channelId = "simple_contacts_call"
+        if (isOreoPlus()) {
+            val importance = NotificationManager.IMPORTANCE_HIGH
+            val name = "call_notification_channel"
+
+            NotificationChannel(channelId, name, importance).apply {
+                notificationManager.createNotificationChannel(this)
+            }
+        }
+
+        val openAppIntent = Intent(this, CallActivity::class.java)
+        openAppIntent.flags = Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT
+        val openAppPendingIntent = PendingIntent.getActivity(this, 0, openAppIntent, 0)
+
+        val acceptCallIntent = Intent(this, CallActionReceiver::class.java)
+        acceptCallIntent.action = ACCEPT_CALL
+        val acceptPendingIntent = PendingIntent.getBroadcast(this, 0, acceptCallIntent, PendingIntent.FLAG_CANCEL_CURRENT)
+
+        val declineCallIntent = Intent(this, CallActionReceiver::class.java)
+        declineCallIntent.action = DECLINE_CALL
+        val declinePendingIntent = PendingIntent.getBroadcast(this, 1, declineCallIntent, PendingIntent.FLAG_CANCEL_CURRENT)
+
+        val callerName = "Caller name"
+        val contentText = getString(R.string.incoming_call)
+
+        val collapsedView = RemoteViews(packageName, R.layout.call_notification).apply {
+            setText(R.id.notification_caller_name, callerName)
+            setText(R.id.notification_caller_number, contentText)
+
+            setOnClickPendingIntent(R.id.notification_decline_call, declinePendingIntent)
+            setOnClickPendingIntent(R.id.notification_accept_call, acceptPendingIntent)
+        }
+
+        val builder = NotificationCompat.Builder(this, channelId)
+            .setSmallIcon(R.drawable.ic_phone_vector)
+            .setContentIntent(openAppPendingIntent)
+            .setPriority(NotificationCompat.PRIORITY_MAX)
+            .setDefaults(Notification.DEFAULT_LIGHTS)
+            .setCategory(Notification.CATEGORY_EVENT)
+            .setCustomContentView(collapsedView)
+            .setOngoing(true)
+            .setAutoCancel(true)
+            .setChannelId(channelId)
+            .setStyle(NotificationCompat.DecoratedCustomViewStyle())
+
+        val notification = builder.build()
+        notificationManager.notify(CALL_NOTIFICATION_ID, notification)
+    }
 }

app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Constants.kt

@@ -34,6 +34,10 @@ const val ADD_NEW_CONTACT_NUMBER = "add_new_contact_number"
 const val FIRST_CONTACT_ID = 1000000
 const val FIRST_GROUP_ID = 10000L
 
+private const val PATH = "com.simplemobiletools.contacts.action."
+const val ACCEPT_CALL = PATH + "accept_call"
+const val DECLINE_CALL = PATH + "decline_call"
+
 // extras used at third party intents
 const val KEY_PHONE = "phone"
 const val KEY_NAME = "name"

app/src/main/kotlin/com/simplemobiletools/contacts/pro/receivers/CallActionReceiver.kt

@@ -0,0 +1,11 @@
+package com.simplemobiletools.contacts.pro.receivers
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+
+class CallActionReceiver : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+
+    }
+}

app/src/main/kotlin/com/simplemobiletools/contacts/pro/services/CallService.kt

@@ -0,0 +1,13 @@
+package com.simplemobiletools.contacts.pro.services
+
+import android.os.Build
+import android.telecom.Call
+import android.telecom.InCallService
+import androidx.annotation.RequiresApi
+
+@RequiresApi(Build.VERSION_CODES.M)
+class CallService : InCallService() {
+    override fun onCallAdded(call: Call) {
+        super.onCallAdded(call)
+    }
+}

app/src/main/res/drawable/ic_phone_down_red_vector.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@color/md_red_700"
+        android:pathData="M23.4267,12.2343C20.4492,9.413 16.4272,7.6753 11.9951,7.6753c-4.4321,0 -8.4541,1.7377 -11.4316,4.559 -0.1757,0.1757 -0.2831,0.4198 -0.2831,0.6931 0,0.2733 0.1074,0.5174 0.2831,0.6931l2.421,2.421c0.1757,0.1757 0.4198,0.2831 0.6931,0.2831 0.2636,0 0.5076,-0.1074 0.6834,-0.2733 0.7712,-0.7224 1.6498,-1.3277 2.5968,-1.806 0.3222,-0.1562 0.5467,-0.4881 0.5467,-0.8786l0,-3.0263C8.92,9.8718 10.4332,9.6278 11.9951,9.6278c1.562,0 3.0751,0.2441 4.4906,0.7029l0,3.0263c0,0.3807 0.2245,0.7224 0.5467,0.8786 0.9567,0.4783 1.8255,1.0934 2.6065,1.806 0.1757,0.1757 0.4198,0.2733 0.6834,0.2733 0.2733,0 0.5174,-0.1074 0.6931,-0.2831l2.421,-2.421c0.1757,-0.1757 0.2831,-0.4198 0.2831,-0.6931 0,-0.2733 -0.1171,-0.5076 -0.2929,-0.6834z" />
+</vector>

app/src/main/res/drawable/ic_phone_green_vector.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@color/md_green_700"
+        android:pathData="M6.62,10.79c1.44,2.83 3.76,5.14 6.59,6.59l2.2,-2.2c0.27,-0.27 0.67,-0.36 1.02,-0.24 1.12,0.37 2.33,0.57 3.57,0.57 0.55,0 1,0.45 1,1V20c0,0.55 -0.45,1 -1,1 -9.39,0 -17,-7.61 -17,-17 0,-0.55 0.45,-1 1,-1h3.5c0.55,0 1,0.45 1,1 0,1.25 0.2,2.45 0.57,3.57 0.11,0.35 0.03,0.74 -0.25,1.02l-2.2,2.2z" />
+</vector>

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

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/notification_holder"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/notification_caller_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/md_grey_black"
+        android:textSize="@dimen/bigger_text_size"
+        android:textStyle="bold"
+        tools:text="Caller name" />
+
+    <TextView
+        android:id="@+id/notification_caller_number"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/notification_caller_name"
+        android:alpha="0.8"
+        android:textColor="@color/md_grey_black"
+        tools:text="123 456 789" />
+
+    <LinearLayout
+        android:id="@+id/notification_actions_holder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/notification_caller_number"
+        android:layout_marginTop="@dimen/medium_margin"
+        android:orientation="horizontal">
+
+        <ImageView
+            android:id="@+id/notification_decline_call"
+            android:layout_width="wrap_content"
+            android:layout_height="@dimen/call_notification_button_size"
+            android:layout_weight="1"
+            android:src="@drawable/ic_phone_down_red_vector" />
+
+        <ImageView
+            android:id="@+id/notification_accept_call"
+            android:layout_width="wrap_content"
+            android:layout_height="@dimen/call_notification_button_size"
+            android:layout_weight="1"
+            android:src="@drawable/ic_phone_green_vector" />
+
+    </LinearLayout>
+</RelativeLayout>

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

@@ -6,6 +6,7 @@
     <dimen name="min_row_height">60dp</dimen>
     <dimen name="dialpad_button_size">60dp</dimen>
     <dimen name="incoming_call_button_size">72dp</dimen>
+    <dimen name="call_notification_button_size">30dp</dimen>
 
     <dimen name="caller_name_text_size">26sp</dimen>
     <dimen name="caller_number_text_size">20sp</dimen>