构建一个MoviesDB应用程序，该应用程序在构建初始网格布局等并调用api后调用api并检索数据以显示受欢迎的电影，我还构建了另一个活动来显示单击的项目。我只想在对活动进行编码之前记录一些数据，但是它返回null。这是一个自定义的Movie对象。我已经阅读了一些，并且Movie.class中的包裹顺序似乎有问题，但是我不确定。
请帮助（如果您也可以详细说明，那将是很好的选择）
public class MovieActivity extends AppCompatActivity {
private Movie movie;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_movie);
// getSupportActionBar().setTitle("Movie");
// getSupportActionBar().setDisplayHomeAsUpEnabled(true);
Intent intent = getIntent();
if(intent.hasExtra("movie")) {
movie = intent.getParcelableExtra("movie");
Toast.makeText(getApplicationContext(), movie.getOriginalTitle(), Toast.LENGTH_LONG).show();
}
}
}
public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.MovieViewHolder> {
private Context context;
private ArrayList<Movie> movieArrayList;
public MovieAdapter(Context context, ArrayList<Movie> movieArrayList) {
this.context = context;
this.movieArrayList = movieArrayList;
}
@NonNull
@Override
public MovieViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.movie_list_item, parent, false);
return new MovieViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull MovieViewHolder holder, int position) {
holder.movieTitle.setText(movieArrayList.get(position).getOriginalTitle());
holder.rate.setText(Double.toString(movieArrayList.get(position).getVoteAverage()));
String imagePath = "https://image.tmdb.org/t/p/w500" + movieArrayList.get(position).getPosterPath();
Glide.with(context)
.load(imagePath)
.placeholder(R.drawable.loading)
.into(holder.movieImage);
}
@Override
public int getItemCount() {
return movieArrayList.size();
}
public class MovieViewHolder extends RecyclerView.ViewHolder {
public TextView movieTitle, rate;
public ImageView movieImage;
public MovieViewHolder(View itemView) {
super(itemView);
movieImage = (ImageView) itemView.findViewById(R.id.ivMovie);
rate = (TextView) itemView.findViewById(R.id.tvRating);
movieTitle = (TextView) itemView.findViewById(R.id.tvTitle);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
int position = getAdapterPosition();
if (position != RecyclerView.NO_POSITION) {
Movie selctedMovie = movieArrayList.get(position);
Intent intent = new Intent(context, MovieActivity.class);
intent.putExtra("movie", selctedMovie);
context.startActivity(intent);
}
}
});
}
}
}
public class Movie implements Parcelable
{
@SerializedName("vote_count")
@Expose
private Integer voteCount;
@SerializedName("id")
@Expose
private Integer id;
@SerializedName("video")
@Expose
private Boolean video;
@SerializedName("vote_average")
@Expose
private Double voteAverage;
@SerializedName("title")
@Expose
private String title;
@SerializedName("popularity")
@Expose
private Double popularity;
@SerializedName("poster_path")
@Expose
private String posterPath;
@SerializedName("original_language")
@Expose
private String originalLanguage;
@SerializedName("original_title")
@Expose
private String originalTitle;
@SerializedName("genre_ids")
@Expose
private List<Integer> genreIds = null;
@SerializedName("backdrop_path")
@Expose
private String backdropPath;
@SerializedName("adult")
@Expose
private Boolean adult;
@SerializedName("overview")
@Expose
private String overview;
@SerializedName("release_date")
@Expose
private String releaseDate;
public final static Parcelable.Creator<Movie> CREATOR = new Creator<Movie>() {
@SuppressWarnings({
"unchecked"
})
public Movie createFromParcel(Parcel in) {
return new Movie(in);
}
public Movie[] newArray(int size) {
return (new Movie[size]);
}
}
;
protected Movie(Parcel in) {
this.voteCount = ((Integer) in.readValue((Integer.class.getClassLoader())));
this.id = ((Integer) in.readValue((Integer.class.getClassLoader())));
this.video = ((Boolean) in.readValue((Boolean.class.getClassLoader())));
this.voteAverage = ((Double) in.readValue((Double.class.getClassLoader())));
this.title = ((String) in.readValue((String.class.getClassLoader())));
this.popularity = ((Double) in.readValue((Double.class.getClassLoader())));
this.posterPath = ((String) in.readValue((String.class.getClassLoader())));
this.originalLanguage = ((String) in.readValue((String.class.getClassLoader())));
this.originalTitle = ((String) in.readValue((String.class.getClassLoader())));
in.readList(this.genreIds, (java.lang.Integer.class.getClassLoader()));
this.backdropPath = ((String) in.readValue((String.class.getClassLoader())));
this.adult = ((Boolean) in.readValue((Boolean.class.getClassLoader())));
this.overview = ((String) in.readValue((String.class.getClassLoader())));
this.releaseDate = ((String) in.readValue((String.class.getClassLoader())));
}
public Movie() {
}
public Integer getVoteCount() {
return voteCount;
}
public void setVoteCount(Integer voteCount) {
this.voteCount = voteCount;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Boolean getVideo() {
return video;
}
public void setVideo(Boolean video) {
this.video = video;
}
public Double getVoteAverage() {
return voteAverage;
}
public void setVoteAverage(Double voteAverage) {
this.voteAverage = voteAverage;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public Double getPopularity() {
return popularity;
}
public void setPopularity(Double popularity) {
this.popularity = popularity;
}
public String getPosterPath() {
return posterPath;
}
public void setPosterPath(String posterPath) {
this.posterPath = posterPath;
}
public String getOriginalLanguage() {
return originalLanguage;
}
public void setOriginalLanguage(String originalLanguage) {
this.originalLanguage = originalLanguage;
}
public String getOriginalTitle() {
return originalTitle;
}
public void setOriginalTitle(String originalTitle) {
this.originalTitle = originalTitle;
}
public List<Integer> getGenreIds() {
return genreIds;
}
public void setGenreIds(List<Integer> genreIds) {
this.genreIds = genreIds;
}
public String getBackdropPath() {
return backdropPath;
}
public void setBackdropPath(String backdropPath) {
this.backdropPath = backdropPath;
}
public Boolean getAdult() {
return adult;
}
public void setAdult(Boolean adult) {
this.adult = adult;
}
public String getOverview() {
return overview;
}
public void setOverview(String overview) {
this.overview = overview;
}
public String getReleaseDate() {
return releaseDate;
}
public void setReleaseDate(String releaseDate) {
this.releaseDate = releaseDate;
}
public void writeToParcel(Parcel dest, int flags) {
dest.writeValue(voteCount);
dest.writeValue(id);
dest.writeValue(video);
dest.writeValue(voteAverage);
dest.writeValue(title);
dest.writeValue(popularity);
dest.writeValue(posterPath);
dest.writeValue(originalLanguage);
dest.writeValue(originalTitle);
dest.writeList(genreIds);
dest.writeValue(backdropPath);
dest.writeValue(adult);
dest.writeValue(overview);
dest.writeValue(releaseDate);
}
public int describeContents() {
return 0;
}
}
我很难理解，因为我期望通过使用putExtra并在调用getIntent时传递电影对象并尝试检索数据，它将返回null，但经过大量调试后，我可以看到它为null已经过去了，这使我相信某个地方的包裹不正确。
在MainActivity中，所有影片均已显示，因此api密钥没有问题。
谢谢。
答案 0 :(得分：1)
我稍微重写了您的数据类。请尝试以下操作：
if (useGPU) {
intersect = gpuPicker.pick(mouse, raycaster);
} else {
intersect = raycaster.intersectObject(scene, true)[0];
}