这是我第一次遇到一个非常奇怪的问题。我有一个下面提到的JSONObject:
JSON主体的链接(由于字符限制,无法在此处粘贴JSON主体):http://kolam.vicz.in:7890/games_gifs/
我正在解析上述一组JSONObjects并将它们转换为Java对象。以下是我解析这个JSON主体的代码。
我的问题是,有8个级别类型的对象和4个kolam对象(请参考JSON主体以获得清晰度)。我为它们分别拥有两个独立的POJO类。我能够正确解析JSON主体,但是当我尝试创建这些JSONObject的Java对象时,最内部的
private void getGameList() {
StringRequest request = new StringRequest(Request.Method.GET, gameUrl, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject mainObject = new JSONObject(response);
JSONArray gamesArray = mainObject.getJSONArray("TracingGames");
Log.e(TAG, "gameArray length:" + gamesArray.length());
for (int i = 0; i < gamesArray.length(); i++) {
JSONObject obj = gamesArray.getJSONObject(i);
for (String str : getKeys(obj)) {
Log.e(TAG, str);
if (str.equalsIgnoreCase("kolam")) {
/*Section for Learn and Kolam Tracing games start*/
//TODO: Need to add the game names to the object (Need server side implementation as well)
KolamTracingGames kolamTracingGames = new KolamTracingGames();
kolamTracingGames.setKolamGifPath(obj.getString("path"));
kolamTracingGames.setKolamLevel(Integer.parseInt(str));
kolamTracingGames.setKolamGameName("Kolam Tracing");
kolamTracingGames.setX(getXCoordinates(obj));
kolamTracingGames.setY(getYCoordinates(obj));
kolamObjects.add(kolamTracingGames);
break;
} else if (str.equalsIgnoreCase("level")) {
LearnTracingGames learnTracingGames = new LearnTracingGames();
learnTracingGames.setLearnGameGifPath(obj.getString("path"));
learnTracingGames.setLearnGameLevel(Integer.parseInt(str));
learnTracingGames.setGameName("Learn Game");
learnTracingGames.setX(getXCoordinates(obj));
learnTracingGames.setY(getYCoordinates(obj));
learnGameObjects.add(learnTracingGames);
Log.e(TAG, learnGameObjects.size() + "");
break;
}
}
}
if (gameType.equalsIgnoreCase("Trace the Kolam")) {
kolamTraceAdapter = new KolamTraceAdapter(getActivity());
kolamTraceAdapter.getGameList(kolamObjects);
recyclerView.setAdapter(kolamTraceAdapter);
} else if (gameType.equalsIgnoreCase("Learn")) {
learnGameAdapter = new LearningGameAdapter(getActivity());
learnGameAdapter.getGameList(learnGameObjects);
Log.e(TAG, "learngameobject size:" + learnGameObjects.size());
recyclerView.setAdapter(learnGameAdapter);
Log.e(TAG, "Learn games");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, error.getMessage());
if (getActivity() != null) {
Alerter.create(getActivity())
.setTitle(R.string.warning)
.setText(R.string.network_error)
.setDuration(2000)
.setBackgroundColorRes(R.color.dot_dark_screen1)
.show();
}
}
});
request.setTag(TAG);
request.setRetryPolicy(new DefaultRetryPolicy(30000, 5, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
AppController.getInstance().addToRequestQueue(request);
我的问题是,有8个级别类型的对象和4个kolam对象(请参考JSON主体以获得清晰度)。我为它们分别拥有两个独立的POJO类。我能够正确解析JSON主体,但是当我尝试创建这些JSONObject的Java对象时,最内部的
for循环
没有完全运行。它在执行一次后就停止了。
如果我这样做(创建Java对象),则内部for循环不会完全执行(仅执行一次,但应该执行超过12次):
for (int i = 0; i < gamesArray.length(); i++) {
JSONObject obj = gamesArray.getJSONObject(i);
for (String str : getKeys(obj)) {
Log.e(TAG, str);
if (str.equalsIgnoreCase("kolam")) {
/*Section for Learn and Kolam Tracing games start*/
//TODO: Need to add the game names to the object (Need server side implementation as well)
KolamTracingGames kolamTracingGames = new KolamTracingGames();
kolamTracingGames.setKolamGifPath(obj.getString("path"));
kolamTracingGames.setKolamLevel(Integer.parseInt(str));
kolamTracingGames.setKolamGameName("Kolam Tracing");
kolamTracingGames.setX(getXCoordinates(obj));
kolamTracingGames.setY(getYCoordinates(obj));
kolamObjects.add(kolamTracingGames);
break;
} else if (str.equalsIgnoreCase("level")) {
LearnTracingGames learnTracingGames = new LearnTracingGames();
learnTracingGames.setLearnGameGifPath(obj.getString("path"));
learnTracingGames.setLearnGameLevel(Integer.parseInt(str));
learnTracingGames.setGameName("Learn Game");
learnTracingGames.setX(getXCoordinates(obj));
learnTracingGames.setY(getYCoordinates(obj));
learnGameObjects.add(learnTracingGames);
Log.e(TAG, learnGameObjects.size() + "");
break;
}
}
}
getKeys(JSONObject)
方法如下:
private static String[] getKeys(JSONObject firstJSONObject) {
Iterator keysToCopyIterator = firstJSONObject.keys();
List<String> keysList = new ArrayList<>();
while (keysToCopyIterator.hasNext()) {
String key = (String) keysToCopyIterator.next();
keysList.add(key);
}
return keysList.toArray(new String[keysList.size()]);
}
但如果我避免在 for 循环
内创建对象,则内部的 for 循环
将完全运行。
Gson
吗? 因为这样理论上可以像写KolamTracingGmaes games = new Gson().fromJson(response, KolamTracingGames.class)
一样简单。 - Daniel W.break
语句。 - Yohannes Gebremariam