这是我的代码：
Observable<String> observable = Observable.create(
new ObservableOnSubscribe<String>() {
@Override
public void subscribe(final ObservableEmitter<String> e) throws Exception {
MyRequestQueue = Volley.newRequestQueue(PlanActivity.this);
String url = AppConfig.BASE_URL + "/api/v1/getPlan/" + planId;
// Request a string response from the provided URL.
StringRequest strRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
@Override
public synchronized void onResponse(String response) {
Log.e("plan response is", "" + response);
AppConfig.indexJson = response;
e.onNext(response);
e.onComplete();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("Error in request ", "=>" + error);
e.onNext(error.toString());
e.onComplete();
MyRequestQueue.cancelAll(this);
}
}) {
@Override
public Map<String, String> getHeaders() {
HashMap<String, String> headers = new HashMap<>();
headers.put("x-access-token", AppConfig.token);
return headers;
}
};
strRequest.setRetryPolicy(new DefaultRetryPolicy(
400000,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
strRequest.setTag(TAG);
// Add the request to the RequestQueue.
MyRequestQueue.add(strRequest);
}
}
);
Observer<String> observer = new Observer<String>() {
@Override
public synchronized void onSubscribe(Disposable d) {
Log.i(TAG, "onSubscribe");
}
@Override
public synchronized void onNext(String response) {
Log.i(TAG, "onNext: " + response);
setUiElement(response);
}
@Override
public void onError(Throwable e) {
Log.i(TAG, "Oops! Something happened");
}
@Override
public void onComplete() {
donateBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(), PaymentActivity.class);
intent.putExtra("planId", planId);
getApplicationContext().startActivity(intent);
}
});
}
};
observable.subscribe(observer);
}
boolean first = true;
public Timer timer;
public synchronized void setUiElement(String json) {
try {
loading.setVisibility(View.GONE);
Gson gson = new Gson();
List<String> imgSlider = gson.fromJson(json, Plans.class).getImgSrc();
Plans planJsonRes = gson.fromJson(json, Plans.class);
//description
String planDesc = planJsonRes.getPlanDesc();
planDescV.setText(planDesc);
//stats
Integer helpCount = planJsonRes.getPlanHelperCount();
Integer helpAmount = planJsonRes.getPlanHelpedCount();
Integer Amount = planJsonRes.getPlanAmount();
Integer userCount = planJsonRes.getUserCount();
count_animation_textView
.setAnimationDuration(animationDuration)
.countAnimation(0, helpCount);
count_animation_textView2
.setAnimationDuration(animationDuration)
.countAnimation(0, helpAmount);
Float amountDarsad = ((float)helpAmount * 100) / (float) Amount ;
Float countDarsad = ((float)helpCount * 100) / (float) userCount ;
statHami.setProgressWithAnimation(countDarsad, animationDuration); // Default duration = 1500ms
statAmount.setProgressWithAnimation(amountDarsad, animationDuration); // Default duration = 1500ms
//title and location
String planName = planJsonRes.getPlanName();
String planLoc = planJsonRes.getPlanLocation();
amountV.setText(convertToFormalString(Amount.toString()) + " تومان");
planTitleV.setText(planName);
planLocV.setText(planLoc);
//image slider
adapter = new CustomPagerAdapterByUrlMain(getApplicationContext());
for (String item : imgSlider) {
adapter.imageLink.add(AppConfig.BASE_URL + '/' + item.toString());
adapter.planId.add(null);
}
//slider
final Handler handler = new Handler();
final Runnable Update = new Runnable() {
public void run() {
if (first) {
first = false;
} else if (planPager.getCurrentItem() == planPager.getAdapter().getCount() - 1) {
planPager.setCurrentItem(0);
} else {
planPager.setCurrentItem(planPager.getCurrentItem() + 1, true);
}
}
};
timer = new Timer(); // This will create a new Thread
timer.schedule(new TimerTask() { // task to be scheduled
@Override
public void run() {
handler.post(Update);
}
}, 500, 4000);
planPager.setAdapter(adapter);
customIndicator.setViewPager(planPager);
} catch (Exception error) {
Log.e("JsonError", "" + error);
}
}
和节点js代码：
app.use('/api/v1/getPlan/:planId', getPagesController.getPlan);
exports.getPlan = function (req, res) {
knex('users').count('userId as c').first().then(function (usersCount) {
knex('plans').where('plans.planId', req.params.planId).first().then(function (plan) {
knex('files').select('fileSrc').where('plan_planId', plan.planId).then(function (files) {
var imgSrcs = [];
planJson = plan;
for (var i in files) {
imgSrcs.push(files[i].fileSrc);
}
planJson.imgSrc = imgSrcs;
planJson.usersCount = usersCount.c;
});
});
});
res.send(planJson);
};
我用pm2运行我的节点服务器，问题是Volley在节点服务器的最后一次响应之前得到一个！
这是我的节点表达pm2日志：
0|www | POST /api/v1/getPlan/7 200 4.924 ms - 265
0|www | POST /api/v1/getPlan/7 200 4.466 ms - 894
0|www | POST /api/v1/getPlan/1 200 4.964 ms - 894
这是我的android studio日志：
the response is: plan no 7
我原以为答案应该是1号计划。
凌空是否保留缓存的请求队列？
答案 0 :(得分：0)
使用＆＃34; 同步＆＃34;您的方法的关键字ex。 私有已同步onNext（）{..} - 也尝试使用＆＃34;同步＆＃34;在onResponse方法之前： 的 @覆盖 public synchronized void onResponse（String response）{...}