问题
As can be observed by the gif when scrolled the the eariler child remain in the place this started code worked well when used in the activity but when placed in fragment this issue occurs. Below are files any suggestion or change is much appreciated.
Main2.java
public class Main2 extends AppCompatActivity {
String Tag="Main2";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_main);
setContentView(R.layout.main2);
Log.i(Tag, "onCreate: ");
FragmentRecy fr=new FragmentRecy();
FragmentTransaction transaction =
getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.fragment,fr);
transaction.commit();
}
}
ProductAdapter.java
public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.ProductHolder> {
private List<ProductModel> productslist;
private int rowLayout;
private Context context;
@Override
public ProductAdapter.ProductHolder onCreateViewHolder(@NonNull
ViewGroup parent, int viewType) {
View view =
LayoutInflater.from(parent.getContext()).inflate(rowLayout, parent,
false);
return new ProductHolder(view);
}
public ProductAdapter(List<ProductModel> productslist, int
rowLayout, Context context) {
this.productslist = productslist;
this.rowLayout = rowLayout;
this.context = context;
}
@Override
public void onBindViewHolder(@NonNull ProductAdapter.ProductHolder
holder, int position) {
holder.productPrice.setText(productslist.get(position).getPrice()+" Per "+productslist.get(position).getQuantity() );
holder.productText.setText(productslist.get(position).getName());
Glide.with(context).load(productslist.get(position).getImageurl())
.thumbnail(0.5f)
.into(holder.productImage);
final int pos= position;
holder.productLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(context,"Clicked On"+productslist.get(pos).getName(),Toast.LENGTH_SHORT).show();
}
});
}
@Override
public int getItemCount() {
return productslist.size();
}
public interface ClickListener {
void onClick(View view, int position);
void onLongClick(View view, int position);
}
public class ProductHolder extends RecyclerView.ViewHolder{
ConstraintLayout productLayout;
ImageView productImage;
TextView productPrice;
TextView productText;
// TextView rating;
public ProductHolder(View itemView) {
super(itemView);
productLayout = (ConstraintLayout) itemView.findViewById(R.id.pro_layout);
productImage = (ImageView) itemView.findViewById(R.id.productimageView);
productPrice = (TextView) itemView.findViewById(R.id.pricetext);
productText = (TextView) itemView.findViewById(R.id.nametext);
// rating = (TextView) itemView.findViewById(R.id.rating);
}
}
public static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
ProductAdapter.ClickListener ClickListener;
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
}
FragmentRecy.java
public class FragmentRecy extends Fragment {
RecyclerView recyclerView;
String TAG="FragmentRecy";
public FragmentRecy() {
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
//return super.onCreateView(inflater, container, savedInstanceState);
return inflater.inflate(R.layout.fragmentrecyclemain, container, false);
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
Log.d(TAG, "onViewCreated: ");
recyclerView = (RecyclerView) view.findViewById(R.id.list2);
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ApiInterface apiService =
ApiClient.getClient().create(ApiInterface.class);
Call<List<ProductModel>> call = apiService.getTopRatedMovies();
Log.e("Json recieved", call.toString() );
call.enqueue(new Callback<List<ProductModel>>() {
@Override
public void onResponse(Call<List<ProductModel>> call, Response<List<ProductModel>> response) {
List<ProductModel> proList= response.body();
recyclerView.setAdapter(new ProductAdapter(proList, R.layout.productsitem, getContext()));
}
@Override
public void onFailure(Call<List<ProductModel>> call, Throwable t) {
}
});
}
}
main2.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<fragment
android:id="@+id/fragment"
android:name="com.dbd.juggernaut.juggernaut.fragment.FragmentRecy"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
fragmentrecyclemain.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/list2"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.constraint.ConstraintLayout>
回答1:
You cannot replace a fragment that is included in the XML. It will put the new fragment on the top of the "old" fragment.
Please see this question for more details: Android - fragment .replace() doesn't replace content - puts it on top
来源：https://stackoverflow.com/questions/49931134/recycleview-scrolling-child-overlaps