Allow fullscreen reading

app/src/main/java/eu/kanade/mangafeed/data/helpers/PreferencesHelper.java

@@ -30,8 +30,8 @@ public class PreferencesHelper {
         mPref.edit().clear().apply();
     }
 
-    public boolean hideStatusBarSet() {
+    public boolean useFullscreenSet() {
-        return mPref.getBoolean(getKey(R.string.pref_hide_status_bar_key), false);
+        return mPref.getBoolean(getKey(R.string.pref_fullscreen_key), false);
     }
 
     public int getDefaultViewer() {

app/src/main/java/eu/kanade/mangafeed/presenter/ReaderPresenter.java

@@ -29,8 +29,7 @@ public class ReaderPresenter extends BasePresenter<ReaderActivity> {
     private Source source;
     private Chapter chapter;
     private List<Page> pageList;
-    private boolean initialStart = true;
+    @State int currentPage;
-    @State int currentPage = 0;
 
     private static final int GET_PAGE_LIST = 1;
     private static final int GET_PAGE_IMAGES = 2;
@@ -45,9 +44,7 @@ public class ReaderPresenter extends BasePresenter<ReaderActivity> {
                         .doOnCompleted(() -> start(GET_PAGE_IMAGES)),
                 (view, pages) -> {
                     view.onPageListReady(pages);
-                    if (initialStart && !chapter.read)
+                    if (currentPage != 0)
-                        view.setSelectedPage(chapter.last_page_read - 1);
-                    else if (currentPage != 0)
                         view.setSelectedPage(currentPage);
                 },
                 (view, error) -> Timber.e("An error occurred while downloading page list")
@@ -64,16 +61,11 @@ public class ReaderPresenter extends BasePresenter<ReaderActivity> {
     protected void onTakeView(ReaderActivity view) {
         super.onTakeView(view);
         registerForStickyEvents();
-
-        if (prefs.hideStatusBarSet()) {
-            view.hideStatusBar();
-        }
     }
 
     @Override
     protected void onDropView() {
         unregisterForEvents();
-        initialStart = false;
         super.onDropView();
     }
 
@@ -90,6 +82,8 @@ public class ReaderPresenter extends BasePresenter<ReaderActivity> {
         if (source == null || chapter == null) {
             source = event.getSource();
             chapter = event.getChapter();
+            if (chapter.last_page_read != 0)
+                currentPage = chapter.last_page_read - 1;
 
             start(1);
         }

app/src/main/java/eu/kanade/mangafeed/ui/activity/ReaderActivity.java

@@ -2,6 +2,7 @@ package eu.kanade.mangafeed.ui.activity;
 
 import android.content.Context;
 import android.content.Intent;
+import android.os.Build;
 import android.os.Bundle;
 import android.view.MotionEvent;
 import android.view.View;
@@ -55,6 +56,9 @@ public class ReaderActivity extends BaseRxActivity<ReaderPresenter> {
         setContentView(R.layout.activity_reader);
         ButterKnife.bind(this);
 
+        if (prefs.useFullscreenSet())
+            enableFullScreen();
+
         viewer = getViewer();
 
         enableHardwareAcceleration();
@@ -75,10 +79,22 @@ public class ReaderActivity extends BaseRxActivity<ReaderPresenter> {
         viewer.setSelectedPage(pageIndex);
     }
 
-    public void hideStatusBar() {
+    public void enableFullScreen() {
-        View decorView = getWindow().getDecorView();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-        int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
+            getWindow().getDecorView().setSystemUiVisibility(
-        decorView.setSystemUiVisibility(uiOptions);
+                    View.SYSTEM_UI_FLAG_LOW_PROFILE
+                            | 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_STICKY
+            );
+        } else {
+            getWindow().getDecorView().setSystemUiVisibility(
+                    View.SYSTEM_UI_FLAG_LOW_PROFILE
+            );
+        }
     }
 
     public void enableHardwareAcceleration() {

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

@@ -2,6 +2,6 @@
 <resources>
     <string name="pref_category_reader_key">pref_category_reader_key</string>
     <string name="pref_category_accounts_key">pref_category_accounts_key</string>
-    <string name="pref_hide_status_bar_key">pref_hide_status_bar_key</string>
+    <string name="pref_fullscreen_key">pref_fullscreen_key</string>
     <string name="pref_default_viewer_key">pref_default_viewer_key</string>
 </resources>

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

@@ -53,8 +53,7 @@
     <string name="pref_category_reader">Reader</string>
     <string name="pref_category_accounts">Accounts</string>
 
-    <string name="pref_hide_status_bar">Hide status bar</string>
+    <string name="pref_fullscreen_mode">Read in fullscreen</string>
-    <string name="pref_hide_status_bar_summary">This option will hide the status bar while reading</string>
 
     <string name="pref_viewer_type">Default viewer</string>
     <string name="left_to_right_viewer">Left to right</string>

app/src/main/res/xml/pref_reader.xml

@@ -1,10 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <CheckBoxPreference android:title="@string/pref_hide_status_bar"
+    <CheckBoxPreference android:title="@string/pref_fullscreen_mode"
-        android:key="@string/pref_hide_status_bar_key"
+        android:key="@string/pref_fullscreen_key"
-        android:defaultValue="false"
+        android:defaultValue="true" />
-        android:summary="@string/pref_hide_status_bar_summary" />
 
     <ListPreference android:title="@string/pref_viewer_type"
         android:key="@string/pref_default_viewer_key"