From 18761b3e4a93b14e298a5f25e657774b8eb70cb5 Mon Sep 17 00:00:00 2001
From: Pratyush <codelab@pratyush.dev>
Date: Thu, 12 May 2022 16:53:55 +0530
Subject: [PATCH] replace deprecated api uses

---
 .../app/grapheneos/pdfviewer/PdfViewer.java   | 17 ++++-------------
 .../java/app/grapheneos/pdfviewer/ktx/View.kt | 19 +++++++++++++++++++
 2 files changed, 23 insertions(+), 13 deletions(-)
 create mode 100644 app/src/main/java/app/grapheneos/pdfviewer/ktx/View.kt

diff --git a/app/src/main/java/app/grapheneos/pdfviewer/PdfViewer.java b/app/src/main/java/app/grapheneos/pdfviewer/PdfViewer.java
index e2d9562..15b3493 100644
--- a/app/src/main/java/app/grapheneos/pdfviewer/PdfViewer.java
+++ b/app/src/main/java/app/grapheneos/pdfviewer/PdfViewer.java
@@ -44,6 +44,7 @@ import app.grapheneos.pdfviewer.databinding.PdfviewerBinding;
 import app.grapheneos.pdfviewer.fragment.DocumentPropertiesFragment;
 import app.grapheneos.pdfviewer.fragment.PasswordPromptFragment;
 import app.grapheneos.pdfviewer.fragment.JumpToPageFragment;
+import app.grapheneos.pdfviewer.ktx.ViewKt;
 import app.grapheneos.pdfviewer.loader.DocumentPropertiesLoader;
 import app.grapheneos.pdfviewer.viewModel.PasswordStatus;
 
@@ -331,8 +332,7 @@ public class PdfViewer extends AppCompatActivity implements LoaderManager.Loader
                         if (mUri != null) {
                             binding.webview.evaluateJavascript("isTextSelected()", selection -> {
                                 if (!Boolean.parseBoolean(selection)) {
-                                    if ((getWindow().getDecorView().getSystemUiVisibility() &
-                                            View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
+                                    if (getSupportActionBar().isShowing()) {
                                         hideSystemUi();
                                     } else {
                                         showSystemUi();
@@ -569,21 +569,12 @@ public class PdfViewer extends AppCompatActivity implements LoaderManager.Loader
     }
 
     private void showSystemUi() {
-        getWindow().getDecorView().setSystemUiVisibility(
-                View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
-                View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
-                View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+        ViewKt.showSystemUi(binding.getRoot());
         getSupportActionBar().show();
     }
 
     private void hideSystemUi() {
-        getWindow().getDecorView().setSystemUiVisibility(
-                View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
-                View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
-                View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
-                View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
-                View.SYSTEM_UI_FLAG_FULLSCREEN |
-                View.SYSTEM_UI_FLAG_IMMERSIVE);
+        ViewKt.hideSystemUi(binding.getRoot());
         getSupportActionBar().hide();
     }
 
diff --git a/app/src/main/java/app/grapheneos/pdfviewer/ktx/View.kt b/app/src/main/java/app/grapheneos/pdfviewer/ktx/View.kt
new file mode 100644
index 0000000..435e78e
--- /dev/null
+++ b/app/src/main/java/app/grapheneos/pdfviewer/ktx/View.kt
@@ -0,0 +1,19 @@
+package app.grapheneos.pdfviewer.ktx
+
+import android.view.View
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.core.view.WindowInsetsControllerCompat
+
+private val systemBars = WindowInsetsCompat.Type.statusBars()
+
+fun View.hideSystemUi() {
+    val controller = ViewCompat.getWindowInsetsController(this) ?: return
+    controller.systemBarsBehavior =
+        WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
+    controller.hide(systemBars)
+}
+
+fun View.showSystemUi() {
+    ViewCompat.getWindowInsetsController(this)?.show(systemBars)
+}