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我嘗試返回列表的「問題」與苗條的框架,並消費他們在我的Android應用程序與改造。超薄框架的API和消費與改造
$app->get('/questions', function() use ($app, $bdd, $logger) {
$stmt = $bdd->prepare('SELECT * FROM questions');
$stmt->execute();
$questions = $stmt->fetchAll(PDO::FETCH_ASSOC);
$app->render(200, $questions);
});
給
{
"0":{
"id":"1",
"userID":"1",
"choice_1":"choice 1",
"choice_2":"choice 2",
"count_1":"213",
"count_2":"165",
"dateAdd":"2016-03-06"
},
"1":{
"id":"2",
"userID":"1",
"choice_1":"choice 1",
"choice_2":"choice 2",
"count_1":"0",
"count_2":"0",
"dateAdd":"2016-03-04"
},
"error":false,
"status":200
}
,並在我的改造API服務:
@GET("questions")
Call<ArrayList<Question>> getQuestions();
,並呼籲有:
APIService api = getRetrofit().create(APIService.class);
Call<ArrayList<Question>> call = api.getQuestions();
call.enqueue(new Callback<ArrayList<Question>>() {
@Override
public void onResponse(Response<ArrayList<Question>> response, Retrofit retrofit) {
questions.addAll(response.body());
}
@Override
public void onFailure(Throwable t) {
Log.d("QFragment", "loadData error" + t.getMessage());
}
});
但是是不正確的,因爲API給我對象列表和我的應用程序中,我需要一個數組: java.lang.IllegalStateException:預期BEGIN_ARRAY但BEGIN_OBJECT位於第1行第2列路徑$
一些幫助?
結果
好了,所以有Jackub答案我解決我的問題,只是增加registerTypeAdapterFactory我GsonBuilder()只得到有效載荷,如:
public class ItemTypeAdapterFactory implements TypeAdapterFactory {
public <T> TypeAdapter<T> create(Gson gson, final TypeToken<T> type) {
final TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);
final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
return new TypeAdapter<T>() {
public void write(JsonWriter out, T value) throws IOException {
delegate.write(out, value);
}
public T read(JsonReader in) throws IOException {
JsonElement jsonElement = elementAdapter.read(in);
if (jsonElement.isJsonObject()) {
JsonObject jsonObject = jsonElement.getAsJsonObject();
if (jsonObject.has("payload")) {
jsonElement = jsonObject.get("payload");
}
}
return delegate.fromJsonTree(jsonElement);
}
}.nullSafe();
}
}