我一直在开发一个应用程序,该应用程序需要我从Google Place API中获取诸如place name和Place Photo之类的信息并将其设置为RecyClerview。我之所以被卡住,是因为我设法将代码毫无错误地工作,但是回收库是空的。我的代码怎么了?
我被卡住了,因为我不知道问题在哪里。当我运行代码时,所有获取工作都可以工作,并且在日志中显示了标签,因此我完全丢失了。我的第一个想法是,我显示的代码错误,但后来我没有求助于向前迈进并将其更改为其他东西,因为我不确定它是否会更好或更糟。
This is the Fragment for the RecyclerView Item:
public class VenueList extends Fragment{
ArrayList<VenueItem> vIL = new ArrayList<>();
private PlacesClient placesClient;
private Context contextForPlaces;
将ID放置为我当前正在使用的地方
String[] clubs = {"ChIJO_uSYKNZwokRAC7RLeB0oZ8", "ChIJAQBEylJYwokRLbnrAchQImk",
"ChIJU_26rfpYwokRTNf2K1-7p8E", "ChIJ38hxfnhZwokRx1HSFLj790w", "ChIJBwnlGrdZwokRpf61pMm860c"
, "ChIJpSIzqrhZwokR1KnVMoVty_g", "ChIJMRV7375ZwokRAfltF6Y-wYw", "ChIJYabdHPhYwokRPmAV8GtM3gs",
"ChIJi2dSjQRZwokRuXUKcv4riVc", "ChIJKaKVI79ZwokRN8WicODOIAw", "ChIJwXI8Fb5ZwokRr4JjG4HxSP8",
"ChIJ6bU_E4ZZwokR2ZDbY_IhhrI"};
@Override
public void onAttach(Context context) {
super.onAttach(context);
contextForPlaces = context;
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.menu_venue, container, false);
RecyclerView vRV = view.findViewById(R.id.view_venue);
List<Place.Field> placeFields = Arrays.asList(Place.Field.NAME, Place.Field.PHOTO_METADATAS);
if (!Places.isInitialized()) {
Places.initialize(contextForPlaces, "AIzaSyCKGd3fqmtsDklRGMhnkuIy1GS-j6gRBh8");}
placesClient = Places.createClient(contextForPlaces);
vRV.setHasFixedSize(true);
RecyclerView.LayoutManager vLM = new LinearLayoutManager(this.getActivity());
RecyclerView.Adapter vAdapter = new VenueAdapter(vIL);
// run through each photo to make sure it has a place attached to it then insert each photo and place into the vIL
//createBitmap for fetchPhoto
for (String club : clubs) {
FetchPlaceRequest request = FetchPlaceRequest.newInstance(club, placeFields);
placesClient.fetchPlace(request).addOnSuccessListener((response) -> {
Place place = response.getPlace();
PhotoMetadata photoMetadata = place.getPhotoMetadatas().get(0);
String attributions = photoMetadata.getAttributions();
FetchPhotoRequest photoRequest = FetchPhotoRequest.builder(photoMetadata).setMaxHeight(200).build();
placesClient.fetchPhoto(photoRequest).addOnSuccessListener((fetchPhotoResponse) -> {
Bitmap bitmap = fetchPhotoResponse.getBitmap();
vIL.add(new VenueItem(/*Photo*/bitmap, place/*Name*/));
Log.i(TAG, "Photo Should Be Up: ");
}).addOnFailureListener((exception) -> {
if (exception instanceof ApiException) {
ApiException apiException = (ApiException) exception;
int statusCode = apiException.getStatusCode();
// Handle error with given status code.
Log.e(TAG, "Place not found: " + exception.getMessage());
}
});
Log.i(TAG, "Place found: " + place.getName());
}).addOnFailureListener((exception) -> {
if (exception instanceof ApiException) {
ApiException apiException = (ApiException) exception;
int statusCode = apiException.getStatusCode();
// Handle error with given status code.
Log.e(TAG, "Place not found: " + exception.getMessage());
}
});
}
vRV.setLayoutManager(vLM);
vRV.setAdapter(vAdapter);
return view;
}
这是我更改的RecyClerview适配器的一部分。我曾经是图像的促进,因为图像来自可绘制的文件夹
public void onBindViewHolder(@NonNull VenueViewHolder venueViewHolder, int i) {
VenueItem currentItem = vIAL.get(i);
if(currentItem.getVenueImageResource() == null){
venueViewHolder.vIV.setImageResource(R.drawable.ic_android);
}else
venueViewHolder.vIV.setImageBitmap(currentItem.getVenueImageResource());
venueViewHolder.vTV.setText((CharSequence) currentItem.getVenueDescription());
}
我还必须从原始物品中更改的项目本身。我把字符串变成了一个位置,int是一个位图。我认为那会起作用。
public class VenueItem {
private Bitmap venueImageResource;
private Place venueDescription;
public VenueItem(Bitmap vIR, Place description) {
venueImageResource = vIR;
venueDescription = description;
}
public Bitmap getVenueImageResource() {
return venueImageResource;
}
public Place getVenueDescription() {
return venueDescription;
}
}
我希望能够使用PloceClient请求地点名称和该地点的照片,并在Recyclerview的for中进行预处理。我知道该地点ID是正确的,因为日志返回所有位置的名称。但是它们没有出现在Recyclerview
我自己想出了答案。
vrv.setlayoutmanager(vlm); vrv.setadapter(vadapter);
我只需要将这两条线放入列表项下的for循环中,以便每个项目都可以在Meing删除