From 38c261eb94a81c0af989a7d19fc319adec0fe6dc Mon Sep 17 00:00:00 2001
From: Andrei Cirja <72752597+ancirja-m@users.noreply.github.com>
Date: Wed, 9 Dec 2020 17:07:49 +0200
Subject: [PATCH] Added integration for DragAndDrop sample with new screen
 manager SDK (#21)

Added integration for DragAndDrop sample with new screen manager SDK
---
 DragAndDrop/build.gradle                      |  6 +-
 DragAndDrop/src/main/AndroidManifest.xml      |  4 +-
 .../draganddrop/DragAndDropApplication.kt     | 19 ++++++
 .../samples/draganddrop/MainActivity.kt       | 65 ++++++++++++++++---
 .../src/main/res/layout/activity_main.xml     |  2 +-
 5 files changed, 81 insertions(+), 15 deletions(-)
 create mode 100644 DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/DragAndDropApplication.kt

diff --git a/DragAndDrop/build.gradle b/DragAndDrop/build.gradle
index 0a2edbdf..40aba284 100644
--- a/DragAndDrop/build.gradle
+++ b/DragAndDrop/build.gradle
@@ -24,6 +24,10 @@ android {
 }
 
 dependencies {
+    implementation microsoftDependencies.screenManager
+    implementation microsoftDependencies.layouts
+    implementation microsoftDependencies.fragmentsHandler
+
     implementation kotlinDependencies.kotlinStdlib
     implementation androidxDependencies.appCompat
     implementation androidxDependencies.constraintLayout
@@ -31,8 +35,6 @@ dependencies {
     implementation androidxDependencies.ktxFragment
     implementation googleDependencies.material
 
-    implementation microsoftDependencies.dualScreenLayout
-
     testImplementation testDependencies.junit
 
     androidTestImplementation instrumentationTestDependencies.junit
diff --git a/DragAndDrop/src/main/AndroidManifest.xml b/DragAndDrop/src/main/AndroidManifest.xml
index 9ce711a8..98ab8290 100644
--- a/DragAndDrop/src/main/AndroidManifest.xml
+++ b/DragAndDrop/src/main/AndroidManifest.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright (c) Microsoft Corporation. All rights reserved.
   ~ Licensed under the MIT License.
   ~
@@ -9,6 +8,7 @@
     package="com.microsoft.device.display.samples.draganddrop">
 
     <application
+        android:name=".DragAndDropApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
diff --git a/DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/DragAndDropApplication.kt b/DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/DragAndDropApplication.kt
new file mode 100644
index 00000000..4fef870f
--- /dev/null
+++ b/DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/DragAndDropApplication.kt
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ *
+ */
+
+package com.microsoft.device.display.samples.draganddrop
+
+import android.app.Application
+import com.microsoft.device.dualscreen.ScreenManagerProvider
+import com.microsoft.device.dualscreen.fragmentshandler.FragmentManagerStateHandler
+
+class DragAndDropApplication : Application() {
+    override fun onCreate() {
+        super.onCreate()
+        ScreenManagerProvider.init(this)
+        FragmentManagerStateHandler.init(this)
+    }
+}
\ No newline at end of file
diff --git a/DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/MainActivity.kt b/DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/MainActivity.kt
index 5ab483eb..6602fe63 100644
--- a/DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/MainActivity.kt
+++ b/DragAndDrop/src/main/java/com/microsoft/device/display/samples/draganddrop/MainActivity.kt
@@ -10,38 +10,83 @@ import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import com.microsoft.device.display.samples.draganddrop.fragment.DragSourceFragment
 import com.microsoft.device.display.samples.draganddrop.fragment.DropTargetFragment
-import com.microsoft.device.dualscreen.layout.ScreenHelper
+import com.microsoft.device.dualscreen.ScreenInfo
+import com.microsoft.device.dualscreen.ScreenInfoListener
+import com.microsoft.device.dualscreen.ScreenManagerProvider
 import kotlinx.android.synthetic.main.activity_main.*
 
-class MainActivity : AppCompatActivity() {
+class MainActivity : AppCompatActivity(), ScreenInfoListener {
+
+    companion object {
+        private const val FRAGMENT_SINGLE_SCREEN_DRAG_SOURCE = "FragmentSingleScreenDragSource"
+        private const val FRAGMENT_SINGLE_SCREEN_DROP_TARGET = "FragmentSingleScreenDropTarget"
+        private const val FRAGMENT_DUAL_SCREEN_DRAG_SOURCE = "FragmentDualScreenDragSource"
+        private const val FRAGMENT_DUAL_SCREEN_DROP_TARGET = "FragmentDualScreenDropTarget"
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
         reset_button.setOnClickListener { recreate() }
+    }
+
+    override fun onScreenInfoChanged(screenInfo: ScreenInfo) {
+        setupLayout(screenInfo)
+    }
 
-        if (!ScreenHelper.isDualMode(this)) {
+    override fun onResume() {
+        super.onResume()
+        ScreenManagerProvider.getScreenManager().addScreenInfoListener(this)
+    }
+
+    override fun onPause() {
+        super.onPause()
+        ScreenManagerProvider.getScreenManager().removeScreenInfoListener(this)
+    }
+
+    private fun setupLayout(screenInfo: ScreenInfo) {
+        if (!screenInfo.isDualMode()) {
+            setupLayoutForSingleScreen()
+        } else {
+            setupLayoutForDualScreen()
+        }
+    }
+
+    private fun setupLayoutForSingleScreen() {
+        if (supportFragmentManager.findFragmentByTag(FRAGMENT_SINGLE_SCREEN_DRAG_SOURCE) == null) {
             supportFragmentManager.beginTransaction()
                 .replace(
                     R.id.drag_source_container,
-                    DragSourceFragment.newInstance()
+                    DragSourceFragment.newInstance(),
+                    FRAGMENT_SINGLE_SCREEN_DRAG_SOURCE
                 ).commit()
+        }
+        if (supportFragmentManager.findFragmentByTag(FRAGMENT_SINGLE_SCREEN_DROP_TARGET) == null) {
             supportFragmentManager.beginTransaction()
                 .replace(
                     R.id.drop_target_container,
-                    DropTargetFragment.newInstance()
+                    DropTargetFragment.newInstance(),
+                    FRAGMENT_SINGLE_SCREEN_DROP_TARGET
                 ).commit()
-        } else {
+        }
+    }
+
+    private fun setupLayoutForDualScreen() {
+        if (supportFragmentManager.findFragmentByTag(FRAGMENT_DUAL_SCREEN_DRAG_SOURCE) == null) {
             supportFragmentManager.beginTransaction()
                 .replace(
-                    R.id.dual_screen_start_container_id,
-                    DragSourceFragment.newInstance()
+                    R.id.first_container_id,
+                    DragSourceFragment.newInstance(),
+                    FRAGMENT_DUAL_SCREEN_DRAG_SOURCE
                 ).commit()
+        }
+        if (supportFragmentManager.findFragmentByTag(FRAGMENT_DUAL_SCREEN_DROP_TARGET) == null) {
             supportFragmentManager.beginTransaction()
                 .replace(
-                    R.id.dual_screen_end_container_id,
-                    DropTargetFragment.newInstance()
+                    R.id.second_container_id,
+                    DropTargetFragment.newInstance(),
+                    FRAGMENT_DUAL_SCREEN_DROP_TARGET
                 ).commit()
         }
     }
diff --git a/DragAndDrop/src/main/res/layout/activity_main.xml b/DragAndDrop/src/main/res/layout/activity_main.xml
index c12bd114..29b5297b 100644
--- a/DragAndDrop/src/main/res/layout/activity_main.xml
+++ b/DragAndDrop/src/main/res/layout/activity_main.xml
@@ -10,7 +10,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <com.microsoft.device.dualscreen.layout.SurfaceDuoLayout
+    <com.microsoft.device.dualscreen.layouts.SurfaceDuoLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         app:single_screen_layout_id="@layout/single_screen"