Custom tab fix?

app/src/main/java/android/support/design/widget/VerticalTabLayout.java

@@ -982,18 +982,21 @@ public class VerticalTabLayout extends ScrollView {
     }
 
     private LinearLayout.LayoutParams createLayoutParamsForTabs() {
+        // Horizontal: WRAP_CONTENT, MATCH_PARENT
         final LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
-                LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
+                LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
         updateTabViewLayoutParams(lp);
         return lp;
     }
 
     private void updateTabViewLayoutParams(LinearLayout.LayoutParams lp) {
         if (mMode == MODE_FIXED && mTabGravity == GRAVITY_FILL) {
-            lp.width = 0;
+            // Horizontal: width 0
+            lp.height = 0;
             lp.weight = 1;
         } else {
-            lp.width = LinearLayout.LayoutParams.WRAP_CONTENT;
+            // Horizontal: width WRAP_CONTENT
+            lp.height = LinearLayout.LayoutParams.WRAP_CONTENT;
             lp.weight = 0;
         }
     }
@@ -1006,7 +1009,10 @@ public class VerticalTabLayout extends ScrollView {
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         // If we have a MeasureSpec which allows us to decide our height, try and use the default
         // height
+        
+        // Horizintal: idealHeight
         final int idealHeight = dpToPx(getDefaultHeight()) + getPaddingTop() + getPaddingBottom();
+        // final int idealWidth = dpToPx(getDefaultHeight()) + getPaddingLeft() + getPaddingRight();
         switch (MeasureSpec.getMode(heightMeasureSpec)) {
             case MeasureSpec.AT_MOST:
                 heightMeasureSpec = MeasureSpec.makeMeasureSpec(
@@ -1210,7 +1216,8 @@ public class VerticalTabLayout extends ScrollView {
 
         switch (mMode) {
             case MODE_FIXED:
-                mTabStrip.setGravity(Gravity.CENTER_HORIZONTAL);
+                // Horizontal: CENTER_HORIZONTAL
+                mTabStrip.setGravity(Gravity.CENTER_VERTICAL);
                 break;
             case MODE_SCROLLABLE:
                 mTabStrip.setGravity(GravityCompat.START);
@@ -2038,6 +2045,10 @@ public class VerticalTabLayout extends ScrollView {
             if (mIndicatorLeft >= 0 && mIndicatorRight > mIndicatorLeft) {
                 canvas.drawRect(mIndicatorLeft, getHeight() - mSelectedIndicatorHeight,
                         mIndicatorRight, getHeight(), mSelectedIndicatorPaint);
+                        
+                // ADD: Try the VERTICAL
+                canvas.drawRect(mIndicatorLeft, getWidth() - mSelectedIndicatorHeight,
+                                mIndicatorRight, getWidth(), mSelectedIndicatorPaint);
             }
         }
     }

app/src/main/java/net/kdt/pojavlaunch/PojavLauncherActivity.java

@@ -17,7 +17,6 @@ import com.kdt.filerapi.*;
 import java.io.*;
 import java.nio.charset.*;
 import java.util.*;
-import net.kdt.pojavlaunch.launcheruiv3.*;
 import net.kdt.pojavlaunch.mcfragments.*;
 import net.kdt.pojavlaunch.prefs.*;
 import net.kdt.pojavlaunch.util.*;
@@ -40,7 +39,7 @@ public class PojavLauncherActivity extends AppCompatActivity
      private VerticalTabLayout tabLayout;
      */
 
-    private PojavLauncherViewPager viewPager;
+    private ViewPager viewPager;
     private VerticalTabLayout tabLayout;
 
     private TextView tvVersion, tvUsernameView;

app/src/main/java/net/kdt/pojavlaunch/launcheruiv3/PojavLauncherViewPager.java

@@ -1,59 +0,0 @@
-// Source: https://github.com/TomazWang/TIL-today-i-learned/blob/master/Android/VerticalViewPager.md
-package net.kdt.pojavlaunch.launcheruiv3;
-
-import android.content.*;
-import android.support.v4.view.*;
-import android.util.*;
-import android.view.*;
-
-public class PojavLauncherViewPager extends ViewPager
-{
-    public PojavLauncherViewPager(Context ctx) {
-        this(ctx, null);
-    }
-    
-    public PojavLauncherViewPager(Context ctx, AttributeSet attrs) {
-        super(ctx, attrs);
-        setPageTransformer(true, new VerticalPageTransformer());
-    }
-    @Override
-    public boolean onInterceptTouchEvent(MotionEvent ev) {
-
-        boolean interceped = super.onInterceptTouchEvent(swapXY(ev));
-        swapXY(ev); // swap x,y back for other touch events.
-        return interceped;
-    }
-
-    @Override
-    public boolean onTouchEvent(MotionEvent ev) {
-        return super.onTouchEvent(swapXY(ev));
-    }
-
-    private MotionEvent swapXY(MotionEvent ev) {
-        float width = getWidth();
-        float height = getHeight();
-
-        float newX = (ev.getY() / height) * width;
-        float newY = (ev.getX() / width) * height;
-
-        ev.setLocation(newX, newY);
-
-        return ev;
-    }
-    
-    private class VerticalPageTransformer implements PageTransformer {
-        @Override
-        public void transformPage(View page, float position) {
-            if (position < -1) {
-                page.setVisibility(View.INVISIBLE);
-            } else if (position <= 1) {
-                page.setVisibility(View.VISIBLE);
-
-                page.setTranslationX(page.getWidth() * -position);
-                page.setTranslationY(position * page.getHeight());
-            } else {
-                page.setVisibility(View.INVISIBLE);
-            }
-        }
-    }
-}

app/src/main/res/layout/launcher_main_v3.xml

@@ -23,7 +23,7 @@
 				android:layout_height="match_parent"
 				android:id="@+id/launchermainTabLayout"/>
 
-			<net.kdt.pojavlaunch.launcheruiv3.PojavLauncherViewPager
+			<android.support.v4.view.ViewPager
 				android:layout_width="0dp"
 				android:layout_height="match_parent"
 				android:layout_weight="1"