為什么在RecyclerView中跳過布局？

Question

我不斷收到E / RecyclerView：未連接適配器； 跳過布局。 我嘗試過onStop（）和onStart（）方法。 我嘗試重新組織該方法的結構，但仍然沒有運氣。 我已經按照https://firebaseopensource.com/projects/firebase/firebaseui-android/database/readme/上的說明進行操作，但是我無法弄清楚。

package mrcof.code.senior_tech_support_app;
        import android.content.Context;
        import android.media.Image;
        import android.os.Bundle;
        import android.view.LayoutInflater;
        import android.view.View;
        import android.view.ViewGroup;
        import android.view.WindowManager;
        import android.widget.EditText;
        import android.widget.ImageButton;
        import android.widget.ImageView;
        import android.widget.TextView;
        import android.widget.Toast;

        import androidx.annotation.NonNull;
        import androidx.appcompat.app.AppCompatActivity;
        import androidx.recyclerview.widget.LinearLayoutManager;
        import androidx.recyclerview.widget.RecyclerView;

        import com.bumptech.glide.Glide;
        import com.firebase.ui.database.FirebaseRecyclerAdapter;
        import com.firebase.ui.database.FirebaseRecyclerOptions;
        import com.google.firebase.database.DatabaseReference;
        import com.google.firebase.database.FirebaseDatabase;
        import com.google.firebase.database.Query;

    import static mrcof.code.senior_tech_support_app.R.id.result_list;

public class TV extends AppCompatActivity {

private EditText mSearchField;
private ImageButton mSearchBtn;

private RecyclerView mResultList;

private DatabaseReference mUserDatabase;

private FirebaseRecyclerAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_tv);

    mUserDatabase = FirebaseDatabase.getInstance().getReference("TV"); // TV in Database

    mSearchField = (EditText) findViewById(R.id.search_field);
    mSearchBtn = (ImageButton) findViewById(R.id.search_btn);


    mSearchBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            String searchText = mSearchField.getText().toString();

            firebaseUserSearch(searchText); //Our own firebase usersearch

        }
    });

}

private void firebaseUserSearch(String searchText) {

    Toast.makeText(TV.this, "Started Search", Toast.LENGTH_LONG).show();

    Query firebaseSearchQuery = mUserDatabase.orderByChild("Brand").startAt(searchText).endAt(searchText + "\uf8ff");
    /*Query firebaseSearchQuery = FirebaseDatabase.getInstance()
            .getReference()
            .child("Brand")
            .limitToLast(6).startAt(searchText).endAt(searchText + "\uf8ff");*/
    FirebaseRecyclerOptions<Users> options = new FirebaseRecyclerOptions.Builder<Users>().setQuery(firebaseSearchQuery, Users.class).build();

    adapter = new FirebaseRecyclerAdapter<Users, UsersViewHolder>(options) {
        @NonNull
        @Override
        public UsersViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_layout, parent, false);
            return new UsersViewHolder(view);
        }

        @Override
        protected void onBindViewHolder(@NonNull UsersViewHolder holder, int position, @NonNull Users model) {
            holder.setDetails(getApplicationContext(), model.getBrand(), model.getImage());
        }
    };

    mResultList = (RecyclerView) findViewById(result_list);
    mResultList.setHasFixedSize(true);
    mResultList.setLayoutManager(new LinearLayoutManager(this));
    mResultList.setAdapter(adapter);
}


// View Holder Class

public static class UsersViewHolder extends RecyclerView.ViewHolder {

    View mView;

    public UsersViewHolder(View itemView) {
        super(itemView);

        mView = itemView;

    }

    public void setDetails(Context ctx, String brandd, String brandImage){

        TextView brand = (TextView) mView.findViewById(R.id.name_text);
        ImageView brand_image = (ImageView) mView.findViewById(R.id.brandd_image);

        brand.setText(brandd);

        Glide.with(ctx).load(brandImage).into(brand_image);


    }

}

}

Answer 1

我不斷收到E / RecyclerView：未連接適配器； 跳過布局。 我嘗試過onStop（）和onStart（）方法。 我嘗試重新組織該方法的結構，但仍然沒有運氣。 我已經按照https://firebaseopensource.com/projects/firebase/firebaseui-android/database/readme/上的說明進行操作，但是我無法弄清楚。

package mrcof.code.senior_tech_support_app;
        import android.content.Context;
        import android.media.Image;
        import android.os.Bundle;
        import android.view.LayoutInflater;
        import android.view.View;
        import android.view.ViewGroup;
        import android.view.WindowManager;
        import android.widget.EditText;
        import android.widget.ImageButton;
        import android.widget.ImageView;
        import android.widget.TextView;
        import android.widget.Toast;

        import androidx.annotation.NonNull;
        import androidx.appcompat.app.AppCompatActivity;
        import androidx.recyclerview.widget.LinearLayoutManager;
        import androidx.recyclerview.widget.RecyclerView;

        import com.bumptech.glide.Glide;
        import com.firebase.ui.database.FirebaseRecyclerAdapter;
        import com.firebase.ui.database.FirebaseRecyclerOptions;
        import com.google.firebase.database.DatabaseReference;
        import com.google.firebase.database.FirebaseDatabase;
        import com.google.firebase.database.Query;

    import static mrcof.code.senior_tech_support_app.R.id.result_list;

public class TV extends AppCompatActivity {

private EditText mSearchField;
private ImageButton mSearchBtn;

private RecyclerView mResultList;

private DatabaseReference mUserDatabase;

private FirebaseRecyclerAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_tv);

    mUserDatabase = FirebaseDatabase.getInstance().getReference("TV"); // TV in Database

    mSearchField = (EditText) findViewById(R.id.search_field);
    mSearchBtn = (ImageButton) findViewById(R.id.search_btn);


    mSearchBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            String searchText = mSearchField.getText().toString();

            firebaseUserSearch(searchText); //Our own firebase usersearch

        }
    });

}

private void firebaseUserSearch(String searchText) {

    Toast.makeText(TV.this, "Started Search", Toast.LENGTH_LONG).show();

    Query firebaseSearchQuery = mUserDatabase.orderByChild("Brand").startAt(searchText).endAt(searchText + "\uf8ff");
    /*Query firebaseSearchQuery = FirebaseDatabase.getInstance()
            .getReference()
            .child("Brand")
            .limitToLast(6).startAt(searchText).endAt(searchText + "\uf8ff");*/
    FirebaseRecyclerOptions<Users> options = new FirebaseRecyclerOptions.Builder<Users>().setQuery(firebaseSearchQuery, Users.class).build();

    adapter = new FirebaseRecyclerAdapter<Users, UsersViewHolder>(options) {
        @NonNull
        @Override
        public UsersViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_layout, parent, false);
            return new UsersViewHolder(view);
        }

        @Override
        protected void onBindViewHolder(@NonNull UsersViewHolder holder, int position, @NonNull Users model) {
            holder.setDetails(getApplicationContext(), model.getBrand(), model.getImage());
        }
    };

    mResultList = (RecyclerView) findViewById(result_list);
    mResultList.setHasFixedSize(true);
    mResultList.setLayoutManager(new LinearLayoutManager(this));
    mResultList.setAdapter(adapter);
}


// View Holder Class

public static class UsersViewHolder extends RecyclerView.ViewHolder {

    View mView;

    public UsersViewHolder(View itemView) {
        super(itemView);

        mView = itemView;

    }

    public void setDetails(Context ctx, String brandd, String brandImage){

        TextView brand = (TextView) mView.findViewById(R.id.name_text);
        ImageView brand_image = (ImageView) mView.findViewById(R.id.brandd_image);

        brand.setText(brandd);

        Glide.with(ctx).load(brandImage).into(brand_image);


    }

}

}