Question

我无法理解我做错了什么。我的内部有一个ScrollView和RecyclerView。我知道在Android中禁用双滚动。我动态地禁用了RecyclerView上的滚动。之后，ScrollView的滚动必须正常工作。但事实并非如此。

MainActivity

public class MainActivity extends AppCompatActivity {
private RecyclerView lvParents;
ParentsAdapter adapter_parents;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    lvParents = (RecyclerView)findViewById(R.id.lvParents);
    fillListParents();
}

public void fillListParents(){
    ArrayList listParents = new ArrayList();
    int j = 0;
    for (j = 0; j < 6; j++){
            ParentsAdapterObject parObj = new ParentsAdapterObject(
                    "pinfo_id",
                    "pinfo_title",
                    "pinfo_date",
                    "pinfo_text");
            listParents.add(parObj);
            Log.d("rklogs", "j_" + j);
    }
    adapter_parents = new ParentsAdapter(listParents, this);
   LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this) {
        @Override
        public boolean canScrollVertically() {
            return false;
        }
    };
    lvParents.setLayoutManager(linearLayoutManager);
    lvParents.setAdapter(adapter_parents);
}

ParentsAdapter

public class ParentsAdapter extends RecyclerView.Adapter<ParentsAdapter.PersonViewHolder>{
public static Context ctx;
ParentsAdapterObject pd;
ArrayList<ParentsAdapterObject> listParents;
public ParentsAdapter(ArrayList<ParentsAdapterObject> listParents, Context ctx){
    this.listParents = listParents;
    this.ctx= ctx;
}

@Override
public PersonViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
    View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_parents_adapter,
            viewGroup, false);
    PersonViewHolder pvh = new PersonViewHolder(v);
    return pvh;
}
@Override
public void onBindViewHolder(PersonViewHolder personViewHolder, int i) {
    pd = listParents.get(i);
    personViewHolder.tvTitle.setText(pd.getTitle());
    personViewHolder.pdo = pd;
}
@Override
public int getItemCount() {
    return listParents.size();
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
    super.onAttachedToRecyclerView(recyclerView);
}
public static class PersonViewHolder extends RecyclerView.ViewHolder {
    TextView tvTitle;
    ParentsAdapterObject pdo;
    PersonViewHolder(View itemView) {
        super(itemView);
        tvTitle = (TextView)itemView.findViewById(R.id.tvTitle);
        tvTitle.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.d("rklogs", tvTitle.getText().toString());
                Log.d("rklogs", pdo.getTitle());
            }
        });
    }
}

}

ParentsAdapterObject

public class ParentsAdapterObject {

public String title;
public String text;
public String date;
public String id;
public ParentsAdapterObject(String id, String title, String date, String text){
    this.title = title;
    this.date = date;
    this.text = text;
    this.id = id;
}

public String getTitle(){
    return title;
}
public String getText(){
    return text;
}
public String getId(){
    return id;
}
public String getDate(){
    return date;
}

}

main_activity

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"

tools:context="row.balinasoft.by.testfucknigscroll.MainActivity">

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/scrollView"
    android:background="#251100ff"
    android:fillViewport="true">

        <android.support.v7.widget.RecyclerView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/lvParents"

            android:visibility="visible"/>

</ScrollView>

Answer 1

而不是ScrollView使用NestedScrollView

在setNestedScrollingEnabled(false)对象

上

和RecyclerView

NestedScrollView能够处理（启用/禁用）内部滚动

Answer 2

如上所述禁用在回收站视图对象上滚动后，您可以检查以下使用嵌套滚动视图而不是普通滚动视图的代码段。

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

    <!-- your other view's/view-group's go here-->

</LinearLayout>

为什么ScrollView的滚动不起作用（当RecycleView里面有禁用滚动时）

2 个答案: