我想使用从Firebase数据库收到的搜索栏数据搜索数据到recyclerview

Question

我想使用从Firebase数据库接收到的搜索栏数据搜索数据到recyclerview ...

我正在尝试通过编辑文本搜索数据，并从数据库文本接收的内容中进行搜索。但是失败了，你能告诉我如何做吗？这是我的代码。我已经尝试了4个多小时，但：（

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eco.xml

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <Button
        android:id="@+id/button"
        android:text="search!"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <EditText
        android:id="@+id/editText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <ScrollView
        android:id="@+id/textViewWrapper"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
    <android.support.v7.widget.RecyclerView tools:context="Controller.MainActivity"
    android:layout_height="match_parent"

    android:layout_width="match_parent"
    android:id="@+id/recycler_view"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:android="http://schemas.android.com/apk/res/android">
</android.support.v7.widget.RecyclerView>
    </ScrollView>
</LinearLayout>

  

recyclerview_item.xml

         

    android:id="@+id/list_item_text"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fontFamily="cursive"
    android:textColor="#000000"
     />

  

Eco.java

   public class Eco extends AppCompatActivity {
        private RecyclerView recyclerView;
        EditText editText;
        ScrollView textViewWrapper;
        Button button;
        TextView textView;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_eco);
           textView = (TextView) findViewById(R.id.list_item_text);
            editText = (EditText) findViewById(R.id.editText);
            textViewWrapper = (ScrollView) findViewById(R.id.textViewWrapper);
            button = (Button) findViewById(R.id.button);
        //textView.setText(R.string.longText);

            recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
            recyclerView.setHasFixedSize(true);
            recyclerView.setLayoutManager(new LinearLayoutManager(this));
            new Eco.GetDataFromFirebase().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);

            // Read from the database
            FirebaseDatabase database = FirebaseDatabase.getInstance();
            DatabaseReference myRef = database.getReference("F");

            myRef.addValueEventListener(new ValueEventListener() {
                @Override
                public void onDataChange(DataSnapshot dataSnapshot) {

                    /*for (DataSnapshot alert: dataSnapshot.getChildren()) {
                        System.out.println(alert.getValue());
                    }*/
                    // This method is called once with the initial value and again
                    // whenever data at this location is updated.
                    ArrayList<String> values = (ArrayList<String>) dataSnapshot.getValue();
                    recyclerView.setAdapter(new RecyclerViewAdapter(values));
                }

                @Override
                public void onCancelled(DatabaseError error) {
                    // Failed to read value
                    System.out.println("Failed to read value." + error.toException());
                }
            });
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    String criteria = editText.getText().toString();
                    String fullText = textView.getText().toString();
                    if (fullText.contains(criteria)) {
                        int indexOfCriteria = fullText.indexOf(criteria);
                        int lineNumber = textView.getLayout().getLineForOffset(indexOfCriteria);
                        String highlighted = "<font color='red'>"+criteria+"</font>";
                        fullText = fullText.replace(criteria, highlighted);
                        textView.setText(Html.fromHtml(fullText));

                        textViewWrapper.scrollTo(0, textView.getLayout().getLineTop(lineNumber));
                    }
                }
            });
            editText.addTextChangedListener(new TextWatcher() {
                @Override
                public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

                }

                @Override
                public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                    if (charSequence.length() == 0) {
                        String fullText = textView.getText().toString();
                        fullText = fullText.replace("<font color='red'>", "");
                        fullText = fullText.replace("</font>", "");
                        textView.setText(fullText);
                    }
                }

                @Override
                public void afterTextChanged(Editable editable) {

                }
            });
        }

        private class GetDataFromFirebase extends AsyncTask<Void,Void,Boolean>{

            @Override
            protected void onPreExecute() {
                super.onPreExecute();
            }

            @Override
            protected Boolean doInBackground(Void... voids) {
                return false;
            }

            @Override
            protected void onPostExecute(Boolean aBoolean) {
                super.onPostExecute(aBoolean);
            }
        }
    }