我有回收卡当你点击卡片时，一个新的活动就会打开

ltqd579y  于 2021-07-13  发布在  Java
关注(0)|答案(1)|浏览(284)

回收器适配器。
在这里，我注册了cardview的recyclerview适配器。主要的问题是他最近才开始做手机开发，而且知识还不够。

class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ViewHolder>{

private  static final String TAG ="RecyclerView";
private  Context mContext;
private ArrayList<Game> gamesList;

public RecyclerAdapter(Context mContext, ArrayList<Game> gamesList){
    this.mContext=mContext;
    this.gamesList=gamesList;

}

@NonNull
@Override
public RecyclerAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

    View view=LayoutInflater.from(parent.getContext()).inflate(R.layout.cardview_games_items, parent, false);

    return new ViewHolder(view);
}

@Override
public void onBindViewHolder(@NonNull RecyclerAdapter.ViewHolder holder, int position) {
holder.textView.setText(gamesList.get(position).getTitle());
holder.textView1.setText(gamesList.get(position).getTag());
holder.textView2.setText(gamesList.get(position).getPrice());
Glide.with(mContext).load(gamesList.get(position).getImage()).into(holder.imageView);

}

@Override
public int getItemCount() {
    return gamesList.size();
}

public class ViewHolder extends RecyclerView.ViewHolder{

    ImageView imageView;
    TextView textView, textView1, textView2;

    public ViewHolder(@NonNull View itemView) {
        super(itemView);

        imageView=itemView.findViewById(R.id.game_img_id);
        textView=itemView.findViewById(R.id.game_title_id);
        textView1=itemView.findViewById(R.id.game_tags_id);
        textView2=itemView.findViewById(R.id.game_price_id);

    }
}

}
游戏。
应该有一个点击和过渡到一个新的活动包含游戏的描述。信息来自firebase数据库。

public class Games extends AppCompatActivity implements View.OnClickListener{

RecyclerView recyclerView;

private DatabaseReference myRef;

private ArrayList<Game> gamesList;
private RecyclerAdapter recyclerAdapter;
private Context mContext;

@Override
protected void onCreate (Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_games);
    ImageButton Home = (ImageButton) findViewById(R.id.home);
    Home.setOnClickListener(this);
    ImageButton Lupa = (ImageButton) findViewById(R.id.lupa);
    Lupa.setOnClickListener(this);
    ImageButton Calendar = (ImageButton) findViewById(R.id.calendar);
    Calendar.setOnClickListener(this);
    ImageButton Kubik = (ImageButton) findViewById(R.id.kubik);
    Kubik.setOnClickListener(this);
    ImageButton Profile = (ImageButton) findViewById(R.id.profile);
    Profile.setOnClickListener(this);

    recyclerView = findViewById(R.id.recyclerview_id);

    LinearLayoutManager layoutManager = new LinearLayoutManager(this);
    recyclerView.setLayoutManager(new GridLayoutManager(this,2));
    recyclerView.setHasFixedSize(true);

    myRef=FirebaseDatabase.getInstance().getReference();

    gamesList= new ArrayList<>();

    GetDataFromFirebase();

}

private void GetDataFromFirebase(){

    Query query_adventures = myRef.child("Parsing/Adventures");
    Query query_indi= myRef.child("Parsing/Indi");
    Query query_casuals= myRef.child("Parsing/Casuals");
    Query query_freegames= myRef.child("Parsing/Freegames");
    Query query_mmos= myRef.child("Parsing/Mmos");
    Query query_races= myRef.child("Parsing/Races");
    Query query_RP = myRef.child("Parsing/RP");
    Query query_simulator = myRef.child("Parsing/Simulator");

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

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });
    query_indi.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });

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

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });

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

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });

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

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });

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

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });
    query_RP.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });
    query_simulator.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Game games = new Game();

                games.setImage(snapshot.child("IMG").getValue().toString());
                games.setTitle(snapshot.child("TITLE").getValue().toString());
                games.setTag(snapshot.child("TAG").getValue().toString());
                games.setPrice(snapshot.child("PRICE").getValue().toString());
                gamesList.add(games);
            }

            recyclerAdapter = new RecyclerAdapter(getApplicationContext(), gamesList);
            recyclerView.setAdapter(recyclerAdapter);
            recyclerAdapter.notifyDataSetChanged();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError error) {

        }
    });
}

private void ClearAll(){
    if(gamesList!=null){
        gamesList.clear();

        if(recyclerAdapter!=null)
            recyclerAdapter.notifyDataSetChanged();
    }

    gamesList= new ArrayList<>();
}

public class ViewHolder extends RecyclerView.ViewHolder{

    ImageView imageView;
    TextView textView, textView1, textView2;
    CardView cardView;

    public ViewHolder(@NonNull View itemView) {
        super(itemView);

        imageView=itemView.findViewById(R.id.game_img_id);
        textView=itemView.findViewById(R.id.game_title_id);
        textView1=itemView.findViewById(R.id.game_tags_id);
        textView2=itemView.findViewById(R.id.game_price_id);
    }

    }

@Override
public void onClick(View v) {
    Intent i;
    switch (v.getId()){
        case R.id.home:
            startActivity(new Intent(this, News.class));
            break;
        case R.id.lupa:
            startActivity(new Intent(this, Games.class));
            break;
        case R.id.calendar:
            startActivity(new Intent(this, Calendar.class));
            break;
        case R.id.kubik:
            startActivity(new Intent(this, Random_game.class));
            break;
        case R.id.profile:
            startActivity(new Intent(this, Profile.class));
            break;
    }
}

}

Javaandroidandroid-studiomobilefirebase

1条答案

按热度按时间
px9o7tmv

px9o7tmv1#

您可以使用viewholder转到其他活动

public ViewHolder(View itemLayoutView) {
        super(itemLayoutView);

       itemLayoutView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {
             //  perform your action here 
            }
        });
    }
}

使用intent putextra（）传递数据，并可以使用getextrastring（）在游戏类中获取数据。

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