java - 如何使用 java 中的 Retrofit 从 Google 附近的搜索 API 检索图像 url

Question

我正在尝试通过retrofit从googleplaces API(附近搜索)检索android中recyclerview中的图像。如何检索图像并将其与毕加索一起加载到我的图像支架中

Here is the response from result

   public class PlacesAdapter extends RecyclerView.Adapter<PlacesAdapter.PlacesViewHolder> {

private Context ctx;
private List<Result> results;

public PlacesAdapter(Context ctx, List<Result> results) {
    this.ctx = ctx;
    this.results = results;
}

@NonNull
@Override
public PlacesViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

    LayoutInflater inflater = LayoutInflater.from(ctx);
    View view = inflater.inflate(R.layout.single_places_layout, parent, false);
    return new PlacesViewHolder(view);
}

@Override
public void onBindViewHolder(@NonNull PlacesViewHolder holder, int position) {
    Result result = results.get(position);
    holder.places_name.setText(result.getName());
}

@Override
public int getItemCount() {
    return results.size();
}
public class PlacesViewHolder extends RecyclerView.ViewHolder {
    ImageView places_picture;
    TextView places_name;
    public PlacesViewHolder(@NonNull View itemView) {
        super(itemView);
        places_picture = itemView.findViewById(R.id.places_pic);
        places_name = itemView.findViewById(R.id.places_name); }
}}
















public class PlacesAPI {
private static final String baseUrl = "https://maps.googleapis.com/maps/api/place/nearbysearch/";
public static PlacesService placesService = null ;
//Using singleton pattern for creating an instance of object only once
public static PlacesService getPlacesService(){
    if(placesService == null){
        Retrofit retrofit= new Retrofit.Builder()
                .baseUrl(baseUrl)
                .addConverterFactory(GsonConverterFactory.create())
                .build();
        placesService = retrofit.create(PlacesService.class);}
    return placesService;}



public interface  PlacesService{
    @GET("json")
    Call<NearbyList> getResult( @QueryMap (encoded = true)Map<String, String> options );
}}





















      public class NearbyActivity extends AppCompatActivity {

private DatabaseReference mDatabase;
private FirebaseAuth mAuth;
private RecyclerView recyclerView ;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_nearby);
    Objects.requireNonNull(getSupportActionBar()).hide();
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

    recyclerView = findViewById(R.id.nearby_places_of_interest_recycler);
    recyclerView.setLayoutManager(new GridLayoutManager(this , 2));

    getData();
}




private void getData() {

    mAuth = FirebaseAuth.getInstance();
    String user_id = mAuth.getCurrentUser().getUid();

    mDatabase = FirebaseDatabase.getInstance().getReference().child("Users");

    mDatabase.child(user_id).addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

            String lat = dataSnapshot.child("lat").getValue().toString();
            String lng = dataSnapshot.child("lng").getValue().toString();

            String location = lat + "," + lng;


            Map<String, String> data = new HashMap<>();
            data.put("key", "AIzaSyB2hud79JTSGmcEFxqB_ErdkYBR4FgIUMU");
            data.put("type", "cafe");
            data.put("radius", "2000");
            data.put("location", location);


            Call<NearbyList> nearbyListCall = PlacesAPI.getPlacesService().getResult(data);

            nearbyListCall.enqueue(new Callback<NearbyList>() {
                @Override
                public void onResponse(Call<NearbyList> call, Response<NearbyList> response) {

                    NearbyList list = response.body();
                    assert list != null;
                    recyclerView.setAdapter(new PlacesAdapter(NearbyActivity.this , list.getResults()));
                    Toast.makeText(NearbyActivity.this, "Success", Toast.LENGTH_SHORT).show();

                }

                @Override
                public void onFailure(Call<NearbyList> call, Throwable t) {

                    Toast.makeText(NearbyActivity.this, "Error", Toast.LENGTH_SHORT).show();

                }
            });

        }

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

        }
    });

}}

在这里，我想检索适配器中的图像并使用 picasso 在 imageview 中显示它。如果有人能提供帮助那就太好了。我已经浏览了互联网和 YouTube 上的所有内容，但找不到解决方案

Answer 1

您可以从附近搜索请求返回的每个地点的结果中的照片数组中获取照片引用，然后使用 Place Photos获取图像。

希望这有帮助。