mobile scroll to top

app/src/mobile/java/com/fongmi/android/tv/ui/custom/CustomFabBehavior.java

@@ -28,10 +28,18 @@ public class CustomFabBehavior extends FloatingActionButton.Behavior {
     @Override
     public void onNestedScroll(@NonNull CoordinatorLayout coordinatorLayout, @NonNull FloatingActionButton child, @NonNull View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int type, @NonNull int[] consumed) {
         super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed, type, consumed);
-        if (dyConsumed > 0 && child.getVisibility() == View.VISIBLE) {
-            onHide(child);
-        } else if (dyConsumed < 0 && child.getVisibility() == View.INVISIBLE) {
-            child.show();
+        if ("uptop".equals(child.getTag())) {
+            if (dyConsumed > 0 && child.getVisibility() == View.INVISIBLE) {
+                child.show();
+            } else if (dyConsumed < 0 && child.getVisibility() == View.VISIBLE) {
+                onHide(child);
+            }
+        } else {
+            if (dyConsumed > 0 && child.getVisibility() == View.VISIBLE) {
+                onHide(child);
+            } else if (dyConsumed < 0 && child.getVisibility() == View.INVISIBLE) {
+                child.show();
+            }
         }
     }
 

app/src/mobile/java/com/fongmi/android/tv/ui/fragment/TypeFragment.java

@@ -193,6 +193,10 @@ public class TypeFragment extends BaseFragment implements CustomScroller.Callbac
         }
     }
 
+    public void scrollToTop() {
+        mBinding.recycler.smoothScrollToPosition(0);
+    }
+
     public void setFilter(String key, Value value) {
         if (value.isActivated()) mExtends.put(key, value.getV());
         else mExtends.remove(key);

app/src/mobile/java/com/fongmi/android/tv/ui/fragment/VodFragment.java

@@ -102,6 +102,7 @@ public class VodFragment extends BaseFragment implements SiteCallback, FilterCal
         mBinding.keep.setOnClickListener(this::onKeep);
         mBinding.retry.setOnClickListener(this::onRetry);
         mBinding.filter.setOnClickListener(this::onFilter);
+        mBinding.uptop.setOnClickListener(this::onUptop);
         mBinding.search.setOnClickListener(this::onSearch);
         mBinding.history.setOnClickListener(this::onHistory);
         mBinding.pager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@@ -166,12 +167,15 @@ public class VodFragment extends BaseFragment implements SiteCallback, FilterCal
         if (mAdapter.getItemCount() == 0) {
             mBinding.filter.setVisibility(View.GONE);
             mBinding.link.setVisibility(View.VISIBLE);
+            mBinding.uptop.setVisibility(View.INVISIBLE);
         } else if (mAdapter.get(position).getFilters().size() > 0) {
             mBinding.link.setVisibility(View.GONE);
             mBinding.filter.show();
+            mBinding.uptop.setVisibility(View.INVISIBLE);
         } else if (position == 0 || mAdapter.get(position).getFilters().isEmpty()) {
             mBinding.link.show();
             mBinding.filter.setVisibility(View.GONE);
+            mBinding.uptop.setVisibility(View.INVISIBLE);
         }
     }
 
@@ -179,6 +183,13 @@ public class VodFragment extends BaseFragment implements SiteCallback, FilterCal
         mBinding.retry.setVisibility(mAdapter.getItemCount() == 0 ? View.VISIBLE : View.GONE);
     }
 
+    private void onUptop(View view) {
+        ((TypeFragment) getFragment()).scrollToTop();
+        mBinding.uptop.setVisibility(View.INVISIBLE);
+        if (mBinding.filter.getVisibility() == View.INVISIBLE) mBinding.filter.show();
+        else if (mBinding.link.getVisibility() == View.INVISIBLE) mBinding.link.show();
+    }
+
     private void onLink(View view) {
         LinkDialog.create(this).show();
     }

app/src/mobile/res/drawable/ic_fab_uptop.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M4,12l1.41,1.41L11,7.83V20h2V7.83l5.58,5.59L20,12l-8,-8 -8,8z" />
+</vector>

app/src/mobile/res/layout/fragment_vod.xml

@@ -141,4 +141,18 @@
         app:tint="@color/white"
         tools:visibility="visible" />
 
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/uptop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:tag="uptop"
+        app:backgroundTint="@color/blue_500"
+        app:layout_anchor="@id/pager"
+        app:layout_anchorGravity="end|bottom"
+        app:layout_behavior="com.fongmi.android.tv.ui.custom.CustomFabBehavior"
+        app:srcCompat="@drawable/ic_fab_uptop"
+        app:tint="@color/white"
+        tools:visibility="visible" />
+
 </androidx.coordinatorlayout.widget.CoordinatorLayout>