如何將我的 API JSON 數據顯示到回收站視圖中

Question

我剛剛完成將我的 API 數據放入 JSONObject，現在我試圖在回收器視圖中可視化數據。 我將如何去做，這是我的代碼：

評論說傳遞給適配器的地方，我認為這就是回收者視圖的去向。 對不起，意大利面代碼，我對 JAVA 和面向對象很陌生。 任何幫助將不勝感激。

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mCompanyInput = findViewById(R.id.companyInput);
        log = findViewById(R.id.log);
        mDescriptionText = findViewById(R.id.descriptionText);
        mTitleText = findViewById(R.id.titleText);

        save = findViewById(R.id.searchButton);
        realm = Realm.getDefaultInstance();
        save.setOnClickListener(this);

    }

    public void onClick(View view) {

        //pull string from search query
        String companyInput = mCompanyInput.getText().toString();


        okHttpClient = new OkHttpClient();

        request = new Request.Builder().url(url + companyInput).header("Authorization", "k6DNRbTp-AnQWn51JBz5VuPiTl8jv4_etdzoMyhf").method("GET", null).build();
        Log.d(TAG, "onClick:" + url);

        okHttpClient.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                Log.i(TAG, e.getMessage());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {

                try {
                    JSONObject object = new JSONObject (response.body().string());

                    JSONArray array = object.getJSONArray("items");

//                    object.get("start_index");

                    Log.i(TAG, "onResponse:"+ array.length());

                    for (int i = 0; i < array.length(); i++){
                        JSONObject company = (JSONObject) array.get(i);
                        Log.i(TAG, "onResponse: " + company);

                    }
//pass to adapter here than feed to recycler view





                } catch (JSONException e) {
                    e.printStackTrace();

                }





            }
        });

//        writeToDB(mCompanyInput.getText().toString().trim(), (mDescriptionText.getText().toString().trim()));
        showData();
    }

    public void showData() {
        RealmResults<Company> guests = realm.where(Company.class).findAll();

// Use an iterator to invite all guests
        String op = "";

        for (Company guest : guests) {
            op += guest.getName();
            op += guest.getAppointments();

        }

        log.setText(op);
    }

    public void writeToDB(final String mTitleText, final String mDescriptionText) {

        realm.executeTransactionAsync(new Realm.Transaction() {
            @Override
            public void execute(Realm bgRealm) {
                Company user = new Company(mTitleText, mDescriptionText);
                bgRealm.insert(user);

            }
        }, new Realm.Transaction.OnSuccess() {
            @Override
            public void onSuccess() {

                // Transaction was a success.
                Log.v("Database", "Data Inserted");
            }
        }, new Realm.Transaction.OnError() {
            @Override
            public void onError(Throwable error) {
                // Transaction failed and was automatically canceled.
                Log.e("Database", error.getMessage());
            }
        });

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        realm.close();
    }

這是我的 API 在日志貓中吐出的內容。 D/MainActivity: onClick: https://api.companieshouse.gov.uk/search/officers?q= I/MainActivity: onResponse:1 I/MainActivity: onResponse: {"links":{"self":"/officers /gPAqCDv52XAYJON4Z9SHCQOG-hU/appointments"},"description":"約會總數 1","address_snippet":"27 Old Gloucester Street, London, United Kingdom, WC1N 3AX","description_identifiers":["appointment-count" ],"appointment_count":1,"snippet":"","kind":"searchresults#officer","address":{"country":"WC1N 3AX","address_line_1":"老格洛斯特街","前提":"27","locality":"倫敦"},"matches":{"snippet":[],"title":[1,8]},"title":"FACEBOOK ADS SRL"}

Answer 1

您可以找到許多示例來展示您正在尋找的內容。

https://medium.com/@sontbv/retrofit-2-for-beginners-creating-an-android-api-client-3c4370e1118

還有很多很多其他的

Answer 2

首先，您可能需要創建一個 POJO 類來解析來自服務器的響應。 你必須為你的 Recycler View 實現一個自定義的 Adapter。

通常，您將在 onCreate 中初始化適配器和回收器視圖，當數據從服務器到達時，您只需更新適配器的內容。

有很多關於如何開始使用 Recycler View 的教程，請查看這個、 這個和這個。