不兼容的类型：List<Movie> 无法转换为 List<Item>

Question

我正在构建一个应用程序来测试 Retrofit 和 CardView、RecyclerView 和 Glide。我有这个对象 'Item'，我在其中定义了电影的属性：

public class Item {
    @SerializedName("poster_path")
    private String posterPath;
    @SerializedName("adult")
    private boolean adult;
    @SerializedName("overview")
    private String overview;
    @SerializedName("release_date")
    private String releaseDate;
    @SerializedName("genre_ids")
    private List<Integer> genreIds = new ArrayList<Integer>();
    @SerializedName("id")
    private Integer id;
    @SerializedName("original_title")
    private String originalTitle;
    @SerializedName("original_language")
    private String originalLanguage;
    @SerializedName("title")
    private String title;
    @SerializedName("backdrop_path")
    private String backdropPath;
    @SerializedName("popularity")
    private Double popularity;
    @SerializedName("vote_count")
    private Integer voteCount;
    @SerializedName("video")
    private Boolean video;
    @SerializedName("vote_average")
    private Double voteAverage;

    public Item(String posterPath, boolean adult, String overview, String releaseDate, List<Integer> genreIds, Integer id,
                     String originalTitle, String originalLanguage, String title, String backdropPath, Double popularity,
                     Integer voteCount, Boolean video, Double voteAverage) {
        this.posterPath = posterPath;
        this.adult = adult;
        this.overview = overview;
        this.releaseDate = releaseDate;
        this.genreIds = genreIds;
        this.id = id;
        this.originalTitle = originalTitle;
        this.originalLanguage = originalLanguage;
        this.title = title;
        this.backdropPath = backdropPath;
        this.popularity = popularity;
        this.voteCount = voteCount;
        this.video = video;
        this.voteAverage = voteAverage;
    }

    public String getPosterPath() {
        return posterPath;
    }

    public void setPosterPath(String posterPath) {
        this.posterPath = posterPath;
    }

    public boolean isAdult() {
        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 List<Integer> getGenreIds() {
        return genreIds;
    }

    public void setGenreIds(List<Integer> genreIds) {
        this.genreIds = genreIds;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getOriginalTitle() {
        return originalTitle;
    }

    public void setOriginalTitle(String originalTitle) {
        this.originalTitle = originalTitle;
    }

    public String getOriginalLanguage() {
        return originalLanguage;
    }

    public void setOriginalLanguage(String originalLanguage) {
        this.originalLanguage = originalLanguage;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getBackdropPath() {
        return backdropPath;
    }

    public void setBackdropPath(String backdropPath) {
        this.backdropPath = backdropPath;
    }

    public Double getPopularity() {
        return popularity;
    }

    public void setPopularity(Double popularity) {
        this.popularity = popularity;
    }

    public Integer getVoteCount() {
        return voteCount;
    }

    public void setVoteCount(Integer voteCount) {
        this.voteCount = voteCount;
    }

    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;
    }
}

在 MainActivity 中，我声明了这个项目列表：

private List<Item> movies;

稍后在 onCreate 方法中，我调用此方法从 imdb API:

请求一些数据

ApiInterface apiService =
                ApiClient.getClient().create(ApiInterface.class);

        Call<MoviesResponse> call = apiService.getTopRatedMovies(API_KEY);
        call.enqueue(new Callback<MoviesResponse>() {
            @Override
            public void onResponse(Call<MoviesResponse> call, Response<MoviesResponse> response) {
                int statusCode = response.code();
                movies = response.body().getResults();
                //recyclerView.setAdapter(new MoviesAdapter(movies, R.layout.list_item_movie, context));

            }

            @Override
            public void onFailure(Call<MoviesResponse> call, Throwable t) {
                // Log error here since request failed
                Log.e(TAG, t.toString());
            }
        });

我正在尝试将 API 中的所有数据插入到 'movies' 列表中，但问题是我收到一条错误消息，提示此 'movies' 列表出现来自 android.graphics.Movie 而不是我的 class 项目。我不知道为什么。我该如何解决这个问题？

编辑：

错误信息

Executing tasks: [:app:assembleDebug]

Configuration 'compile' in project ':app' is deprecated. Use 'implementation' instead.
:app:buildInfoDebugLoader
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:checkDebugManifest UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources UP-TO-DATE
:app:createDebugCompatibleScreenManifests UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:splitsDiscoveryTaskDebug UP-TO-DATE
:app:processDebugResources UP-TO-DATE
:app:generateDebugSources
:app:javaPreCompileDebug UP-TO-DATE
:app:compileDebugJavaWithJavac
/Users/Mvaguimaraes/Documents/Android Projects/MusicAppCardView/app/src/main/java/com/example/mvaguimaraes/musicappcardview/MainActivity.java:86: error: incompatible types: List<Movie> cannot be converted to List<Item>
                movies = response.body().getResults();
                                                   ^
1 error

 FAILED
:app:buildInfoGeneratorDebug

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 17s

15 actionable tasks: 3 executed, 12 up-to-date

Answer 1

这意味着您在某处导入了错误的电影 class。

如果您为

添加了导入，请检查您的改装服务

import android.graphics.Movie;

在某个地方代替你自己的模型。

仔细检查您的 Retrofit Service ApiInterface 如果您将 List 或仅作为通用 List 作为 return 值而不是

List<Item>

这意味着确保它类似于

@GET("your/path")
Call<List<Item>> listItems();

而不是

@GET("your/path")
Call<List> listItems();

或

@GET("your/path")
Call<List<Movie>> listItems();

不兼容的类型：List<Movie> 无法转换为 List<Item>

Incompatible types: List<Movie> cannot be converted to List<Item>

android

retrofit

incompatibletypeerror