[mobile] fix scroll

app/src/main/java/com/fongmi/android/tv/ui/custom/CustomRecyclerView.java

@@ -3,6 +3,7 @@ package com.fongmi.android.tv.ui.custom;
 import android.content.Context;
 import android.content.res.TypedArray;
 import android.util.AttributeSet;
+import android.view.MotionEvent;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -13,6 +14,8 @@ import com.fongmi.android.tv.R;
 public class CustomRecyclerView extends RecyclerView {
 
     private int maxHeight;
+    private float x1;
+    private float y1;
 
     public CustomRecyclerView(@NonNull Context context) {
         super(context);
@@ -39,6 +42,12 @@ public class CustomRecyclerView extends RecyclerView {
         if (holder != null) holder.itemView.requestFocus();
     }
 
+    private int getNewSpec(int heightMeasureSpec) {
+        int newHeight = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.AT_MOST);
+        if (heightMeasureSpec > newHeight) heightMeasureSpec = newHeight;
+        return heightMeasureSpec;
+    }
+
     @Override
     public void scrollToPosition(int position) {
         super.scrollToPosition(position);
@@ -47,8 +56,28 @@ public class CustomRecyclerView extends RecyclerView {
 
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-        int newHeight = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.AT_MOST);
-        if (heightMeasureSpec > newHeight) heightMeasureSpec = newHeight;
+        if (maxHeight != 0) heightMeasureSpec = getNewSpec(heightMeasureSpec);
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
     }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent event) {
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_UP:
+                x1 = y1 = 0;
+                break;
+            case MotionEvent.ACTION_DOWN:
+                x1 = event.getX();
+                y1 = event.getY();
+                break;
+            case MotionEvent.ACTION_MOVE:
+                float x2 = event.getX();
+                float y2 = event.getY();
+                float offsetX = Math.abs(x2 - x1);
+                float offsetY = Math.abs(y2 - y1);
+                if (Math.abs(offsetX) >= Math.abs(offsetY)) getParent().requestDisallowInterceptTouchEvent(false);
+                break;
+        }
+        return super.dispatchTouchEvent(event);
+    }
 }

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

@@ -9,7 +9,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
-        <androidx.recyclerview.widget.RecyclerView
+        <com.fongmi.android.tv.ui.custom.CustomRecyclerView
             android:id="@+id/recycler"
             android:layout_width="match_parent"
             android:layout_height="match_parent"