我是Android开发领域的新手，我制作了一个集会简单的应用，该应用在翻新的帮助下从http://api.tvmaze.com/search/shows?q=girls加载了一些图像和文本 应用程序未显示任何项目，我也不知道出了什么问题 这是我的代码：
渐变应用
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:cardview-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
// https://github.com/ReactiveX/RxAndroid
implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
implementation 'io.reactivex.rxjava2:rxjava:2.1.10'
//Retrofit http://square.github.io/retrofit
implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.squareup.retrofit2:adapter-rxjava:2.4.0'
implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
// GSON body parser
implementation 'com.google.code.gson:gson:2.8.2'
//Glide
implementation 'com.github.bumptech.glide:glide:4.8.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
响应：
{
"score": 17.220499,
"show": {
"id": 139,
"url": "http://www.tvmaze.com/shows/139/girls",
"name": "Girls",
"type": "Scripted",
"language": "English",
"genres": [
"Drama",
"Romance"
],
"status": "Ended",
"runtime": 30,
"premiered": "2012-04-15",
"officialSite": "http://www.hbo.com/girls",
"schedule": {
"time": "22:00",
"days": [
"Sunday"
]
},
"rating": {
"average": 6.7
},
"weight": 94,
"network": {
"id": 8,
"name": "HBO",
"country": {
"name": "United States",
"code": "US",
"timezone": "America/New_York"
}
},
"webChannel": null,
"externals": {
"tvrage": 30124,
"thetvdb": 220411,
"imdb": "tt1723816"
},
"image": {
"medium": "http://static.tvmaze.com/uploads/images/medium_portrait/31/78286.jpg",
"original": "http://static.tvmaze.com/uploads/images/original_untouched/31/78286.jpg"
},
"summary": "<p>This Emmy winning series is a comic look at the assorted humiliations and rare triumphs of a group of girls in their 20s.</p>",
"updated": 1538265422,
"_links": {
"self": {
"href": "http://api.tvmaze.com/shows/139"
},
"previousepisode": {
"href": "http://api.tvmaze.com/episodes/1079686"
}
}
}
}
这是我模块的类（每个类在不同的文件中）
public class Image {
@SerializedName("medium")
@Expose
private String medium;
@SerializedName("original")
@Expose
private String original;
public String getMedium() {
return medium;
}
public void setMedium(String medium) {
this.medium = medium;
}
public String getOriginal() {
return original;
}
public void setOriginal(String original) {
this.original = original;
}
}
public class Movie {
@SerializedName("name")
@Expose
private String name;
@SerializedName("image")
@Expose
private Image image;
@SerializedName("summary")
@Expose
private String summary;
public String getTitle() {
return name;
}
public void setTitle(String name) {
this.name = name;
}
public Image getImageUrl() {
return image;
}
public void setImageUrl(Image image)
{
this.image = image;
}
public String getSummary() {
return summary;
}
public void setSummary(String summary) {
this.summary = summary;
}
}
public class MovieResponse {
@SerializedName("show")
@Expose
private Movie show;
public Movie getShow() {
return show;
}
}
适配器：
public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.MyViewHolder> {
private List<MovieResponse> movieList;
//private List<MovieResponse> movieListFiltered;
private Context context;
public void setMovieList(Context context,final List<MovieResponse> movieList){
this.context = context;
this.movieList = movieList;
}
@Override
public MovieAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item,parent,false);
return new MyViewHolder(view);
}
@Override
public void onBindViewHolder(MovieAdapter.MyViewHolder holder, int position) {
holder.title.setText(movieList.get(position).getShow().getTitle());
holder.summary.setText(movieList.get(position).getShow().getSummary());
GlideApp.with(context).load(movieList.get(position).getShow().getImageUrl().getMedium()).listener(new RequestListener() {
@Override
public boolean onLoadFailed(@Nullable GlideException e, Object model, Target target, boolean isFirstResource) {
// Log the GlideException here (locally or with a remote logging framework):
Log.e(TAG, "Load failed", e);
Toast.makeText(context,"error", Toast.LENGTH_SHORT).show();
// You can also log the individual causes:
for (Throwable t : e.getRootCauses()) {
Log.e(TAG, "Caused by", t);
Toast.makeText(context,t.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
}
// Or, to log all root causes locally, you can use the built in helper method:
e.logRootCauses(TAG);
return false; // Allow calling onLoadFailed on the Target.
}
@Override
public boolean onResourceReady(Object resource, Object model, Target target, DataSource dataSource, boolean isFirstResource) {
// Log successes here or use DataSource to keep track of cache hits and misses.
return false; // Allow calling onResourceReady on the Target.
}
}).into(holder.image);
}
@Override
public int getItemCount() {
if(movieList != null){
return movieList.size();
} else {
return 0;
}
}
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView title, summary;
ImageView image;
public MyViewHolder(View view) {
super(view);
title = (TextView) view.findViewById(R.id.title);
image = (ImageView)view.findViewById(R.id.image);
summary=(TextView)view.findViewById(R.id.summary);
}
}
}
主要活动
public class MainActivity extends AppCompatActivity {
//private SearchView searchView;
private RecyclerView recyclerView;
private MovieAdapter movieAdapter;
private List<MovieResponse> movieList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
movieList = new ArrayList<>();
recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
movieAdapter = new MovieAdapter();
recyclerView.setAdapter(movieAdapter);
ApiInterface apiService = TvMazeApiClient.getClient().create(ApiInterface.class);
Call <List<MovieResponse>> call = apiService.getMovies("girls");
call.enqueue(new Callback<List<MovieResponse>>() {
@Override
public void onResponse(Call<List<MovieResponse>> call, Response<List<MovieResponse>> response) {
if(movieList != null) {
movieList = response.body();
Log.d("TAG", "Response = " + movieList);
movieAdapter.setMovieList(getApplicationContext(), movieList);
}
else{
Toast.makeText(MainActivity.this,"error", Toast.LENGTH_SHORT).show();
}
}
@Override
public void onFailure(Call<List<MovieResponse>> call, Throwable t) {
Log.d("TAG","Response = "+t.toString());
Toast.makeText(MainActivity.this,t.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
}
});
}
}
Api客户端
public class TvMazeApiClient {
public static String BASE_URL ="http://api.tvmaze.com/";
private static Retrofit retrofit;
public void TvMazeApiClient(){
}
public static Retrofit getClient(){
if(retrofit == null){
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
}
return retrofit;
}
}
Api界面
public interface ApiInterface {
@GET("search/shows")
Call<List<MovieResponse>> getMovies(@Query("q") String query);
}
请给我一些建议怎么做
答案 0 :(得分：0)
在movieList中添加新数据后，您需要使用notifyDataSetChanged();
尝试一下
public void setMovieList(Context context,final List<MovieResponse> movieList){
this.context = context;
this.movieList = movieList;
notifyDataSetChanged();
}