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OPTIMIST .KZ
Asked:2020-11-18 19:17:47 +0000 UTC2020-11-18 19:17:47 +0000 UTC

如何将所有item值传递给RecycleView？

  • 772

我有一个带数据的回收视图，我需要将所有项目数据传递给另一个活动，我该如何实现？

java

2 个回答

  1. Best Answer

    如果任何模型都可以序列化 ( implements Parcelable) 并将整个模型作为一个整体传递，为什么要像以前的答案那样制作这样的拐杖？

    投入意图： intent.putExtra("parcelable", myParcelables.get(position))

    我们从意图中获取： MyParcelable model = getIntent().getParcelableExtra("parcelable")

    实施例：

    public class Country implements Parcelable {

    private String code;

    private String name;

    private String tag;

    private int limit;

    private String image;

    public Country(JSONParser data) {
        code = data.getString("code");
        name = data.getString("value");
        tag = data.getString("flag");
        image = data.getString("image");
        if (data.contains("limit")) {
            limit = data.getInt("limit") - code.length();
        }
    }

    public Country(Parcel in) {
        code = in.readString();
        name = in.readString();
        tag = in.readString();
        image = in.readString();
        limit = in.readInt();
    }

    public static final Creator<Country> CREATOR = new Creator<Country>() {
        @Override
        public Country createFromParcel(Parcel in) {
            return new Country(in);
        }

        @Override
        public Country[] newArray(int size) {
            return new Country[size];
        }
    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeString(code);
        dest.writeString(name);
        dest.writeString(tag);
        dest.writeString(image);
        dest.writeInt(limit);
    }

    public String getClearCode() {
        return code;
    }

    public String getCode() {
        return "+" + code;
    }

    public String getName() {
        return name;
    }

    public String getTag() {
        return tag;
    }

    public int getLimit() {
        return limit;
    }

    public String getImage() {
        return image;
    }
}

    聚苯乙烯

    为了在活动之间传递时不被捕获，Parcelable 构造函数必须按照在方法BadParcelableException中写入数据的相同顺序初始化数据Parcelvoid writeToParcel(Parcel, int)

    • 7

  2. 最原始的是添加一个clicker并传递数据 Here is an example implementation

    将其添加到侦听器

        Intent intent = new Intent(getActivity(), YourNextActivity.class);
intent.putExtra("movie_id_key", movies.get(position).getId); //you can name the keys whatever you like
intent.putExtra("movie_rating_key", movies.get(position).getRating); //note that all these values have to be primitive (i.e boolean, int, double, String, etc.)
intent.putExtra("movie_release_date_key", movies.get(position).getReleaseDate);
startActivity(intent)

    你在新的活动中写下这个：

     String id = getIntent().getExtras().getString("movie_id_key");
    • 2

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