如何使用exchangeratesapi.io和okhttp更改汇率基础货币，并在微调控件中选择所有基础货币？

OkHttpClient client = new OkHttpClient();

String url = "https://api.exchangeratesapi.io/latest?base=USD";
Request request = new Request.Builder()
        .url(url)
        .build();

client.newCall(request).enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
        // 请求失败处理逻辑
    }

    @Override
    public void onResponse(Call call, Response response) throws IOException {
        // 请求成功处理逻辑
        if (response.isSuccessful()) {
            String responseData = response.body().string();
            // 解析responseData中的汇率数据
            // 更新UI或进行其他操作
        }
    }
});

<Spinner
    android:id="@+id/currencySpinner"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

Spinner currencySpinner = findViewById(R.id.currencySpinner);
ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, currencies);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
currencySpinner.setAdapter(adapter);

currencySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        String selectedCurrency = currencies[position];
        // 根据选择的基础货币更新汇率
        // 更新UI或进行其他操作
    }

    @Override
    public void onNothingSelected(AdapterView<?> parent) {
        // 未选择任何项时的处理逻辑
    }
});