Cannot resolve method 'fromJson(org.json.JSONObject, java.lang.Class)'

问题

in the method fromJson, in my class Result, I want to deserialize the JsonObject into an ArrayList of the type Result.

public static ArrayList<Result> fromJson(JSONObject items) {
    ArrayList results = new ArrayList<Result>();
    Gson gson = new Gson();
    return results = gson.fromJson(items, Result[].class);
}

I can't find the solution for this error:

Cannot resolve method 'fromJson(org.json.JSONObject, java.lang.Class<me.myrottentomatoes.Result[]>)'

To me it looks like I'm passing the right arguments to the method. Please help, thanks. Here's the Result class:

public class Result {

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

//get's and set's...
//and the method public static ArrayList<Result> fromJson(JSONObject items)

回答1:

The fromJson method's first parameter is com.google.gson.JsonObject, not org.json.JSONObject.

See here: https://github.com/google/gson/blob/master/UserGuide.md

Other thing to note is that your second parameter should be ArrayList.class, not Result[].class.

来源：https://stackoverflow.com/questions/32319222/cannot-resolve-method-fromjsonorg-json-jsonobject-java-lang-classme-myrotten

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