我在嵌套的片段中调用Web服务,这些片段具有TabLayout
和ViewPager
,并使用AsyncTask
。 我已尝试通过在每个Fragment
的onResume
方法中调用它们来使用AsyncTasks
:
new FetchAllData(getActivity()).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
并且
new FetchAllData(getActivity()).execute();
一切都很好,但我遇到了许多问题:
应用程序无任何对话框停止工作,但在日志中显示
suspending all threads
。当我们从图像所示的另一个活动转到此嵌套标签布局和视图分页器的片段时,除工具栏外,所有内容都会在3至5秒内变为空白。 突然,它们就和完整的数据一起出现了。
当我们从同一活动的另一个片段调用此片段时,它会在那里冻结,并突然打开该片段。
希望您已经理解了我的所有问题,如果没有,请通知我。
堆栈跟踪如下:
1-29 12:10:49.580 10853-10863/com.cws.advisorymandi W/art: Suspending all threads took: 10.409ms
01-29 12:10:49.707 10853-10853/com.cws.advisorymandi D/cr_Ime: [InputMethodManagerWrapper.java:27] Constructor
01-29 12:10:49.711 10853-10853/com.cws.advisorymandi D/cr_Ime: [ImeAdapter.java:241] attach
01-29 12:10:49.711 10853-10853/com.cws.advisorymandi W/art: Attempt to remove local handle scope entry from IRT, ignoring
01-29 12:10:49.716 10853-10853/com.cws.advisorymandi W/AwContents: onDetachedFromWindow called when already detached. Ignoring
01-29 12:10:49.717 10853-10853/com.cws.advisorymandi D/cr_Ime: [InputMethodManagerWrapper.java:56] isActive: false
01-29 12:10:49.726 10853-10853/com.cws.advisorymandi W/art: Attempt to remove local handle scope entry from IRT, ignoring
01-29 12:10:49.726 10853-10853/com.cws.advisorymandi W/art: Attempt to remove local handle scope entry from IRT, ignoring
01-29 12:10:49.812 10853-10853/com.cws.advisorymandi D/cr_Ime: [ImeAdapter.java:241] attach
01-29 12:10:49.832 10853-10853/com.cws.advisorymandi D/cr_Ime: [ImeAdapter.java:241] attach
01-29 12:10:49.833 10853-10853/com.cws.advisorymandi I/Choreographer: Skipped 58 frames! The application may be doing too much work on its main thread.
01-29 12:10:50.075 10853-10853/com.cws.advisorymandi W/cr_BindingManager: Cannot call determinedVisibility() - never saw a connection for the pid: 10853
01-29 12:10:50.610 10853-10863/com.cws.advisorymandi W/art: Suspending all threads took: 43.636ms
01-29 12:10:50.621 10853-10853/com.cws.advisorymandi I/Ads: Scheduling ad refresh 60000 milliseconds from now.
01-29 12:10:50.630 10853-10853/com.cws.advisorymandi I/Ads: Ad finished loading.
Fragment.java
public class IndicesFragment extends android.support.v4.app.Fragment implements SwipeRefreshLayout.OnRefreshListener {
public static String imagepath = null;
public static FetchAllData myTask;
static ArrayList<EquityDetails> catListDao = new ArrayList<EquityDetails>();
static ArrayList<EquityDetails> catListDao1 = new ArrayList<EquityDetails>();
static int count = 0;
static int count1 = 0;
ListView list;
ImageView progressBar;
View view;
Activity act;
AdvisorsAdapter adapter;
TextView empty_text;
AnimatorSet set;
JSONArray jsonArray;
SwipeRefreshLayout swipeRefreshLayout;
private boolean isViewShown = false;
public static IndicesFragment newInstance() {
return new IndicesFragment();
}
@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser) {
isViewShown = true;
if (adapter != null) {
adapter.filter("");
}
} else {
isViewShown = false;
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.equity_activity, container, false);
act = this.getActivity();
Constants.check_fragment_visible = 1;
count++;
setHasOptionsMenu(true);
list = (ListView) view.findViewById(R.id.list_equity);
empty_text = (TextView) view.findViewById(R.id.empty);
swipeRefreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipe_refresh_layout);
progressBar = (ImageView) view.findViewById(R.id.progressBar);
set = (AnimatorSet) AnimatorInflater.loadAnimator(getActivity(), R.animator.fadein);
set.setTarget(progressBar);
progressBar.setVisibility(View.GONE);
if (Utils.isNetworkAvailable(getActivity())) {
if (catListDao.size() > 0) {
adapter = new AdvisorsAdapter(act, R.layout.custom_equity, catListDao, 0);
list.setAdapter(adapter);
} else {
if (!isViewShown) {
new FetchAllData(getActivity(), 3).execute();
}
}
} else {
CustomToast toast = new CustomToast(getActivity(), "There is no internet connection!");
}
swipeRefreshLayout.setOnRefreshListener(this);
return view;
}
public void onActivityCreated(Bundle savedInstanceState1) {
super.onActivityCreated(savedInstanceState1);
}
@Override
public void onResume() {
super.onResume();
Constants.check_fragment_visible = 1;
if (Constants.check_reload) {
if (Utils.isNetworkAvailable(getActivity())) {
new FetchAllData(getActivity(), 3).execute();
} else {
CustomToast toast = new CustomToast(getActivity(), "There is no internet connection!");
}
}
if (adapter != null) adapter.notifyDataSetChanged();
}
@Override
public void onRefresh() {
if (Utils.isNetworkAvailable(getActivity())) {
new FetchAllData(getActivity(), 3).execute();
} else {
CustomToast toast = new CustomToast(getActivity(), "There is no internet connection!");
}
}
public void doChange(String queryText) {
if (queryText != null) {
if (adapter != null)
adapter.filter(queryText);
}
}
public void parseJSON(String result) {
if (result != null) {
JSONObject jsonObject;
try {
catListDao = new ArrayList<EquityDetails>();
jsonObject = new JSONObject(result);
jsonArray = jsonObject.getJSONArray("list");
Log.d("Length ", "" + jsonArray.length());
for (int i = 0; i < jsonArray.length(); i++) {
EquityDetails allDirectory = new EquityDetails();
allDirectory.setEntry_value(jsonArray.getJSONObject(i).getString("entry"));
String value1 = jsonArray.getJSONObject(i).getString("entry");
String value2 = jsonArray.getJSONObject(i).getString("tgt_1");
allDirectory.setSerial_value(jsonArray.getJSONObject(i).getString("sl"));
allDirectory.setTg_value1(jsonArray.getJSONObject(i).getString("tgt_1"));
allDirectory.setTg_value2(jsonArray.getJSONObject(i).getString("tgt_2"));
allDirectory.setPosted_by(jsonArray.getJSONObject(i).getString("posted_by"));
allDirectory.setMainTitle_value(jsonArray.getJSONObject(i).getString("script"));
allDirectory.setMain_subTitle_value(jsonArray.getJSONObject(i).getString("exchange"));
allDirectory.setRating_value(jsonArray.getJSONObject(i).getString("rating"));
allDirectory.setReview_value(jsonArray.getJSONObject(i).getString("review"));
imagepath = jsonArray.getJSONObject(i).getString("advisor_image");
Log.d("Comminh Image ", "" + jsonArray.getJSONObject(i).getString("advisor_image"));
allDirectory.setImage1(jsonArray.getJSONObject(i).getString("advisor_image"));
allDirectory.setImage2(jsonArray.getJSONObject(i).getString("script_image"));
allDirectory.setBuy(jsonArray.getJSONObject(i).getString("buy_sentiment"));
allDirectory.setSell(jsonArray.getJSONObject(i).getString("sell_sentiment"));
allDirectory.setRecommend(jsonArray.getJSONObject(i).getString("recommendation"));
allDirectory.setPosted_date(jsonArray.getJSONObject(i).getString("posted_date"));
allDirectory.setCall_id(jsonArray.getJSONObject(i).getString("call_id"));
allDirectory.setExpiry_date(jsonArray.getJSONObject(i).getString("expiry_date"));
allDirectory.setBroker_name(jsonArray.getJSONObject(i).getString("name"));
allDirectory.setCall_detail(jsonArray.getJSONObject(i).getString("detail"));
allDirectory.setProgress_indicator(0);
catListDao.add(allDirectory);
}
catListDao1 = catListDao;
adapter = new AdvisorsAdapter(act, R.layout.custom_equity, catListDao, 0);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
public class FetchAllData extends AsyncTask<Void, Void, String> {
ProgressDialog pDialog;
int typeId;
private Context cont;
public FetchAllData(Context con, int typeId) {
// TODO Auto-generated constructor stub
this.cont = con;
this.typeId = typeId;
Log.d("Constructor Called", "yes");
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
if (!swipeRefreshLayout.isRefreshing()) {
if (progressBar != null) {
progressBar.setVisibility(View.VISIBLE);
set.start();
}
}
}
@Override
protected String doInBackground(Void... params) {
// TODO Auto-generated method stub
return getString();
}
private String getString() {
// TODO Auto-generated method stub
URL obj = null;
HttpURLConnection con = null;
try {
obj = new URL(Constants.AppBaseUrl + "/call_listing/" + typeId);
String userPassword = "rickmams" + ":" + "advisor11";
String header = "Basic " + new String(android.util.Base64.encode(userPassword.getBytes(), android.util.Base64.NO_WRAP));
con = (HttpURLConnection) obj.openConnection();
con.addRequestProperty("Authorization", header);
con.setRequestProperty("Content-type", "application/x-www-form-urlencoded");
con.setRequestMethod("POST");
// For POST only - BEGIN
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
os.flush();
os.close();
// For POST only - END
int responseCode = con.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) { //success
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuilder response = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
Log.i("TAG", response.toString());
parseJSON(response.toString());
return response.toString();
} else {
Log.i("TAG", "POST request did not work.");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (con != null) {
con.disconnect();
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
if (getActivity() == null)
return;
if (swipeRefreshLayout.isRefreshing()) {
swipeRefreshLayout.setRefreshing(false);
}
if (result != null) {
if (progressBar != null) {
list.setAdapter(adapter);
//pDialog.dismiss();
if (progressBar != null) {
set.end();
if (progressBar.getVisibility() == View.VISIBLE)
progressBar.setVisibility(View.GONE);
}
if (jsonArray.length() != 0) {
empty_text.setVisibility(View.GONE);
} else empty_text.setVisibility(View.VISIBLE);
}
}
}
}
}
查看完整的堆栈跟踪,请访问http://pastebin.com/7FDynA05
ViewPager
中的界面卡顿,这不是我想要的。 - Anshul Tyagi