added settings option for auto fullscreen

Author: shebyimran@gmail.com

app/src/main/java/fr/gaulupeau/apps/Poche/data/Settings.java

@@ -368,6 +368,10 @@ public boolean isFullscreenArticleView() {
         return getBoolean(R.string.pref_key_ui_article_fullscreen, false);
     }
 
+    public boolean isAutoFullscreenArticleView() {
+        return getBoolean(R.string.pref_key_ui_article_fullscreen_auto, true);
+    }
+
     public void setFullScreenArticleView(boolean value) {
         setBoolean(R.string.pref_key_ui_article_fullscreen, value);
     }

app/src/main/java/fr/gaulupeau/apps/Poche/ui/ReadArticleActivity.java

@@ -220,8 +220,7 @@ public void onCreate(Bundle savedInstanceState) {
 
         // Hide status and action bar when scrolling down, show when scrolling up
         // TODO: change to a method compatible with API 14.
-        // TODO: Maybe implement an option in the settings menu to enable this?
-        if (Build.VERSION.SDK_INT >= 23) {
+        if (Build.VERSION.SDK_INT >= 23 && settings.isAutoFullscreenArticleView()) {
             scrollView.setOnScrollChangeListener(new View.OnScrollChangeListener(){
                 @Override
                 public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {

app/src/main/res/values/strings-preference-keys.xml

@@ -35,6 +35,7 @@
     <string name="pref_key_ui_screenScrolling_smooth" translatable="false">ui.screenScrolling.smooth</string>
     <string name="pref_key_ui_misc_category" translatable="false">ui.misc.category</string>
     <string name="pref_key_ui_article_fullscreen" translatable="false">ui.article.fullscreen</string>
+    <string name="pref_key_ui_article_fullscreen_auto" translatable="false">ui.article.fullscreen_auto</string>
     <string name="pref_key_ui_disableTouch_enabled" translatable="false">ui.disableTouch.enabled</string>
     <string name="pref_key_ui_disableTouch_lastState" translatable="false">ui.disableTouch.lastState</string>
     <string name="pref_key_ui_disableTouch_keyCode" translatable="false">ui.disableTouch.keyCode</string>

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

@@ -198,6 +198,8 @@
     <string name="pref_desc_ui_article_textAlignment_justify">Stretches lines to equal width (like in newspapers)</string>
     <string name="pref_name_ui_article_fullscreen">Fullscreen Article View</string>
     <string name="pref_desc_ui_article_fullscreen">Hides system and app bars when reading articles</string>
+    <string name="pref_name_ui_article_fullscreen_auto">Fullscreen Article View on Scroll</string>
+    <string name="pref_desc_ui_article_fullscreen_auto">Hides/Shows system and app bars automatically scroll. Only works on Android 6.0 and above.</string>
     <string name="pref_name_ui_readingSpeed">Reading speed</string>
     <string name="pref_desc_ui_readingSpeed">Your reading speed (measured in words per minute). Used to calculate estimated reading time.</string>
     <string name="pref_name_ui_keepScreenOn">Keep screen on while reading</string>

app/src/main/res/xml/preferences.xml

@@ -150,6 +150,11 @@
                 android:title="@string/pref_name_ui_article_fullscreen"
                 android:summary="@string/pref_desc_ui_article_fullscreen"
                 android:defaultValue="false"/>
+            <CheckBoxPreference
+                android:key="@string/pref_key_ui_article_fullscreen_auto"
+                android:title="@string/pref_name_ui_article_fullscreen_auto"
+                android:summary="@string/pref_desc_ui_article_fullscreen_auto"
+                android:defaultValue="true"/>
             <CheckBoxPreference
                 android:key="@string/pref_key_ui_disableTouch_enabled"
                 android:title="@string/pref_name_ui_disableTouch_enabled"