I am having an issue with target targetSdkVersion.I want to move from 27 to 29 but when change to sdk 29 the app runs but does not display videos.But it displays the videos when it is sdk 27 or less.
Please can someone help me fix this.
/**
* A simple {#link Fragment} subclass.
*/
public class ChannelFragment extends Fragment {
private static String GOOGLE_YOUTUBE_API_KEY = "AIzaSyBJQYpQRTzM5wuuhMUxmP7rvP3lbMGtUZ8";//here you should use your api key for testing purpose you can use this api also
private static String CHANNEL_ID = "UCB_ZwuWCAuB7y0B93qvnkWw"; //here you should use your channel id for testing purpose you can use this api also
private static String CHANNLE_GET_URL = "https://www.googleapis.com/youtube/v3/search?part=snippet&order=date&channelId=" + CHANNEL_ID + "&maxResults=50&key=" + GOOGLE_YOUTUBE_API_KEY + "";
private RecyclerView mList_videos = null;
private VideoPostAdapter adapter = null;
private ArrayList<YoutubeDataModel> mListData = new ArrayList<>();
public ChannelFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_channel, container, false);
mList_videos = (RecyclerView) view.findViewById(R.id.mList_videos);
initList(mListData);
new RequestYoutubeAPI().execute();
return view;
}
private void initList(ArrayList<YoutubeDataModel> mListData) {
mList_videos.setLayoutManager(new LinearLayoutManager(getActivity()));
adapter = new VideoPostAdapter(getActivity(), mListData, new OnItemClickListener() {
#Override
public void onItemClick(YoutubeDataModel item) {
YoutubeDataModel youtubeDataModel = item;
Intent intent = new Intent(getActivity(), DetailsActivity.class);
intent.putExtra(YoutubeDataModel.class.toString(), youtubeDataModel);
startActivity(intent);
}
});
mList_videos.setAdapter(adapter);
}
//create an asynctask to get all the data from youtube
private class RequestYoutubeAPI extends AsyncTask<Void, String, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected String doInBackground(Void... params) {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(CHANNLE_GET_URL);
Log.e("URL", CHANNLE_GET_URL);
try {
HttpResponse response = httpClient.execute(httpGet);
HttpEntity httpEntity = response.getEntity();
String json = EntityUtils.toString(httpEntity);
return json;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String response) {
super.onPostExecute(response);
if (response != null) {
try {
JSONObject jsonObject = new JSONObject(response);
Log.e("response", jsonObject.toString());
mListData = parseVideoListFromResponse(jsonObject);
initList(mListData);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
public ArrayList<YoutubeDataModel> parseVideoListFromResponse(JSONObject jsonObject) {
ArrayList<YoutubeDataModel> mList = new ArrayList<>();
if (jsonObject.has("items")) {
try {
JSONArray jsonArray = jsonObject.getJSONArray("items");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject json = jsonArray.getJSONObject(i);
if (json.has("id")) {
JSONObject jsonID = json.getJSONObject("id");
String video_id = "";
if (jsonID.has("videoId")) {
video_id = jsonID.getString("videoId");
}
if (jsonID.has("kind")) {
if (jsonID.getString("kind").equals("youtube#video")) {
YoutubeDataModel youtubeObject = new YoutubeDataModel();
JSONObject jsonSnippet = json.getJSONObject("snippet");
String title = jsonSnippet.getString("title");
String description = jsonSnippet.getString("description");
String publishedAt = jsonSnippet.getString("publishedAt");
String thumbnail = jsonSnippet.getJSONObject("thumbnails").getJSONObject("high").getString("url");
youtubeObject.setTitle(title);
youtubeObject.setDescription(description);
youtubeObject.setPublishedAt(publishedAt);
youtubeObject.setThumbnail(thumbnail);
youtubeObject.setVideo_id(video_id);
mList.add(youtubeObject);
}
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
return mList;
}
}
I am trying to display array data using JSON Volley in PostsBasedOnCategory.java. Array data that I want to display are, Title post, and excerpt based on specific category from https://www.kisahmuslim.com/wp-json/wp/v2/categories. But unfortunately, it only showing one result.
Below you can check my code
DaftarCategories.java
public class CallingPage extends AsyncTask<String, String, String> {
HttpURLConnection conn;
java.net.URL url = null;
private int page = 1;
#Override
protected void onPreExecute() {
super.onPreExecute();
//this method will be running on UI thread
showNoFav(false);
pb.setVisibility(View.VISIBLE);
}
#Override
protected String doInBackground(String... params) {
try {
url = new URL("https://www.kisahmuslim.com/wp-json/wp/v2/categories");
}
catch(MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return e.toString();
}
try {
// Setup HttpURLConnection class to send and receive data from php and mysql
conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(READ_TIMEOUT);
conn.setConnectTimeout(CONNECTION_TIMEOUT);
conn.setRequestMethod("GET");
// setDoOutput to true as we recieve data from json file
conn.setDoOutput(true);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
return e1.toString();
}
try {
int response_code = conn.getResponseCode();
// Check if successful connection made
if (response_code == HttpURLConnection.HTTP_OK) {
// Read data sent from server
InputStream input = conn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
StringBuilder result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
// Pass data to onPostExecute method
return (result.toString());
} else {
return("koneksi gagal");
}
} catch (IOException e) {
e.printStackTrace();
return e.toString();
} finally {
conn.disconnect();
}
}
protected void onPostExecute(String result)
{
JsonArrayRequest stringRequest = new JsonArrayRequest(Request.Method.GET, SumberPosts.HOST_URL+"wp/v2/categories/", null, new Response.Listener<JSONArray>()
{
#Override
public void onResponse(JSONArray response) {
// display response
Log.d(TAG, response.toString() + "Size: "+response.length());
// agar setiap kali direfresh data tidak redundant
typeForPosts.clear();
for(int i=0; i<response.length(); i++) { //ambil semua objek yang ada
final CategoriesModel post = new CategoriesModel();
try {
Log.d(TAG, "Object at " + i + response.get(i));
JSONObject obj = response.getJSONObject(i);
post.setId(obj.getInt("id"));
post.setPostURL(obj.getString("link"));
//Get category name
post.setCategory(obj.getString("name"));
//////////////////////////////////////////////////////////////////////////////////////
// getting article konten
JSONObject postCategoryParent = obj.getJSONObject("_links");
JSONArray postCategoryObj = postCategoryParent.getJSONArray("wp:post_type");
JSONObject postCategoryIndex = postCategoryObj.getJSONObject(0); //ambil satu objek saja
String postCategoryUrl = postCategoryIndex.getString("href"); //satu objek yang dimaksud adalah href
if(postCategoryUrl != null) {
Log.d(TAG, postCategoryIndex.getString("href"));
JsonArrayRequest getKonten = new JsonArrayRequest(Request.Method.GET, postCategoryUrl, null, new Response.Listener<JSONArray>()
{
#Override
public void onResponse(JSONArray respon) {
Log.d(TAG, respon.toString() + "Size: "+respon.length());
for(int d=0; d<respon.length(); d++) {
try {
//Log.d(TAG, "Object at " + i + respon.get());
JSONObject objek = respon.getJSONObject(d); //ambil semua artikel yang tersedia di postCategoryUrl
post.setId(objek.getInt("id"));
post.setCreatedAt(objek.getString("date"));
post.setPostURL(objek.getString("link"));
//Get category title
JSONObject titleObj = objek.getJSONObject("title");
post.setJudul(titleObj.getString("rendered"));
//Get excerpt
JSONObject exerptObj = objek.getJSONObject("excerpt");
post.setExcerpt(exerptObj.getString("rendered"));
// Get content
JSONObject contentObj = objek.getJSONObject("content");
post.setContent(contentObj.getString("rendered"));
}
catch (JSONException e) {
e.printStackTrace();
}
}// for category
} //onResponse2
}, new Response.ErrorListener() { //getKonten
#Override
public void onErrorResponse(VolleyError error) {
pb.setVisibility(View.GONE);
Log.d(TAG, error.toString());
}
});
queue.add(getKonten);
} //if postCategoryUrl
//////////////////////////////////////////////////////////////////////////////////////
typeForPosts.add(post);
} //try 1
catch (JSONException e) {
e.printStackTrace();
}
} //for 1
pb.setVisibility(View.GONE);
recycleViewWordPress.setAdapter(mAdapter);
mAdapter.notifyDataSetChanged();
} //onResponse1
}, new Response.ErrorListener() { //stringRequest
#Override
public void onErrorResponse(VolleyError error) {
showNoFav(true);
pb.setVisibility(View.GONE);
Log.e(TAG, "Error: " + error.getMessage());
Toast.makeText(getContext(), "Tidak bisa menampilkan data. Periksa kembali sambungan internet Anda", Toast.LENGTH_LONG).show();
}
});
// Add the request to the RequestQueue.
queue.add(stringRequest);
} //onPostExecute
} //CallingPage
#Override
public void onPostingSelected(int pos) {
CategoriesModel click = typeForPosts.get(pos);
excerpt = click.getExcerpt();
//gambar = click.getPostImg();
judul = click.getJudul();
//url = click.getPostURL();
content = click.getContent();
Bundle bundle = new Bundle();
bundle.putString("judul", judul);
//bundle.putString("gambar", gambar);
//bundle.putString("url", url);
bundle.putString("content", content);
bundle.putString("excerpt", excerpt);
PostsBasedOnCategory bookFragment = new PostsBasedOnCategory();
bookFragment.setArguments(bundle);
AppCompatActivity activity = (AppCompatActivity) getContext();
activity.getSupportFragmentManager().beginTransaction().replace(R.id.flContainerFragment, bookFragment).addToBackStack(null).commit();
}
PostsBasedOnCategory.java
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_wordpress, container,false);
ButterKnife.bind(this,view);
setHasOptionsMenu(true);
return view;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
swipeRefreshLayout =(SwipeRefreshLayout) getActivity().findViewById(R.id.swipeRefreshLayout);
recycleViewWordPress =(RecyclerView) getActivity().findViewById(R.id.recycleViewWordPress);
pb = (ProgressBar) getActivity().findViewById(R.id.loadingPanel);
noFavtsTV = getActivity().findViewById(R.id.no_favt_text);
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
swipeRefreshLayout.setRefreshing(false);
pb.setVisibility(View.VISIBLE);
recycleViewWordPress.setAdapter(mAdapter);
}
});
typeForPosts = new ArrayList<CategoriesModel>();
recycleViewWordPress.setHasFixedSize(true);
recycleViewWordPress.setLayoutManager(new LinearLayoutManager(getContext()));
recycleViewWordPress.setNestedScrollingEnabled(false);
mAdapter = new AdapterCategoryPosts(getContext(), typeForPosts, this);
recycleViewWordPress.setAdapter(mAdapter);
mAdapter.notifyDataSetChanged();
loadData();
}
public void loadData() {
Bundle bundel = this.getArguments();
long id = bundel.getLong("id");
String kategori = bundel.getString("kategori");
String title = bundel.getString("judul");
String excerpt = bundel.getString("excerpt");
String pict = bundel.getString("gambar");
String url = bundel.getString("url");
String konten = bundel.getString("konten");
CategoriesModel list = new CategoriesModel();
list.setId(id);
list.setCategory(kategori);
list.setJudul(title);
list.setExcerpt(excerpt);
list.setPostImg(pict);
list.setPostURL(url);
list.setContent(konten);
typeForPosts.add(list);
}
Logcat
2019-09-07 12:01:27.941 11246-11246/com.kursusarabic.arabicforfun D/postFrag: [{"id":12,"count":53,"description":"","link":"https:\/\/kisahmuslim.com\/category\/kisah-nyata\/biografi-ulama","name":"Biografi Ulama","slug":"biografi-ulama","taxonomy":"category","parent":29,"meta":[],"_links":{"self":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/12"}],"collection":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/taxonomies\/category"}],"up":[{"embeddable":true,"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/29"}],"wp:post_type":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/posts?categories=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":26,"count":8,"description":"","link":"https:\/\/kisahmuslim.com\/category\/download","name":"Download","slug":"download","taxonomy":"category","parent":0,"meta":[],"_links":{"self":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/26"}],"collection":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/taxonomies\/category"}],"wp:post_type":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/posts?categories=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":1812,"count":9,"description":"","link":"https:\/\/kisahmuslim.com\/category\/info","name":"Info","slug":"info","taxonomy":"category","parent":0,"meta":[],"_links":{"self":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/1812"}],"collection":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/taxonomies\/category"}],"wp:post_type":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/posts?categories=1812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":17,"count":3,"description":"","link":"https:\/\/kisahmuslim.com\/category\/kisah-nyata\/kisah-birrul-walidain","name":"Kisah Birrul Walidain","slug":"kisah-birrul-walidain","taxonomy":"category","parent":29,"meta":[],"_links":{"self":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/17"}],"collection":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/taxonomies\/category"}],"up":[{"embeddable":true,"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/29"}],"wp:post_type":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/posts?categories=17"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":25,"count":31,"description":"","link":"https:\/\/kisahmuslim.com\/category\/kisah-nyata\/kisah-hidayah-islam","name":"Kisah Hidayah Islam","slug":"kisah-hidayah-islam","taxonomy":"category","parent":29,"meta":[],"_links":{"self":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/25"}],"collection":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/taxonomies\/category"}],"up":[{"embeddable":true,"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/29"}],"wp:post_type":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/posts?categories=25"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":16,"count":49,"description":"","link":"https:\/\/kisahmuslim.com\/category\/kisah-nyata\/kisah-kaum-durhaka","name":"Kisah Kaum Durhaka","slug":"kisah-kaum-durhaka","taxonomy":"category","parent":29,"meta":[],"_links":{"self":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/16"}],"collection":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/taxonomies\/category"}],"up":[{"embeddable":true,"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/29"}],"wp:post_type":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/posts?categories=1
2019-09-07 12:01:27.942 11246-11246/com.kursusarabic.arabicforfun D/postFrag: Object at 0{"id":12,"count":53,"description":"","link":"https:\/\/kisahmuslim.com\/category\/kisah-nyata\/biografi-ulama","name":"Biografi Ulama","slug":"biografi-ulama","taxonomy":"category","parent":29,"meta":[],"_links":{"self":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/12"}],"collection":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/taxonomies\/category"}],"up":[{"embeddable":true,"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/categories\/29"}],"wp:post_type":[{"href":"https:\/\/kisahmuslim.com\/wp-json\/wp\/v2\/posts?categories=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
2019-09-07 12:01:27.942 11246-11246/com.kursusarabic.arabicforfun D/postFrag: https://kisahmuslim.com/wp-json/wp/v2/posts?categories=12
You cannot call network requests in loop, Use async processing or
Retrofit & RxJava multiple requests complete
and after updating typeForPosts, there is no need to setAdapter on recyclerview just call adapter.notifyDataSetChanged()
I've a issue on using a list_state out of the Okhttp, when I try to pass it in adapter it result empty.
I can't understand because all variables used inside onResponse do not be passed outside of it.
I've tried to set a recyclerview and adapter inside onResponse but got and error on it and ap crash.
The code I've used is below anyone can help me?.
Sorry for my English.
public class dashboard_device extends Fragment implements ListOwner{
RecyclerView mRecicleView;
RecyclerView.LayoutManager mLayoutManager;
RecyclerView.Adapter mAdapter;
ArrayList<String> lista_show;
ArrayList<String> lista_state = new ArrayList<String> ();
ArrayList<String> lista_prestate = new ArrayList<String> ();
String p,d;
String myResponse = null;
List<risposta_json> posts;
public dashboard_device() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, final ViewGroup container,
Bundle savedInstanceState) {
View fragmentView = inflater.inflate (R.layout.dashboard_device_layout, container, false);
final ArrayList<String> lista_show = new ArrayList<String> ();
dashboard_DB db1 = new dashboard_DB (getContext ());
//recupero datbase DB
db1.open();
Cursor c = db1.ottieniTuttidati();
if (c.moveToFirst()) {
do {
lista_show.add (c.getString(2));
} while (c.moveToNext());
}
db1.close();
//fine recupero dati da db
// Inflate the layout for this fragment
GestioneDB db = new GestioneDB(getContext ());
db.open();
Cursor c1 = db.ottieniTuttidati();
if (c1.moveToFirst()) {
do {
p = c1.getString(1);
d = c1.getString(2);
} while (c1.moveToNext());
}
db.close();
//fine recupero dati da db
final String url = p;
String token=d;
OkHttpClient client = new OkHttpClient ();
Request request = new Request.Builder()
.url("https://"+url+"/api/states")
.addHeader("Authorization", "Bearer " + token)
.build();
client.newCall(request).enqueue(new Callback () {
#Override
public void onFailure(Call call, IOException e) {e.printStackTrace();}
#Override
public void onResponse(Call call, Response response) throws IOException {
if (response.isSuccessful()) {
myResponse = response.body().string();
GsonBuilder gsonb = new GsonBuilder();
Gson gson = gsonb.create();
String jsonOutput = myResponse;
Type listType = new TypeToken<List<risposta_json>> (){}.getType();
posts = gson.fromJson(jsonOutput, listType);
// Log.d("MYRESPONSE", String.valueOf (myResponse));
//attributes = gson.fromJson (myResponse, risposta_json.class);
for (int i = 0; i<lista_show.size (); i++) {
for (int l = 0; l<posts.size ();l++) {
if (posts.get (l).getAttributes ().getFriendly_name ()!=null && posts.get (l).getAttributes ().getFriendly_name ().equalsIgnoreCase (lista_show.get (i))) {
lista_state.add (posts.get (l).getState ());
}
}
}
}
}
});
Log.d("STATI", String.valueOf (lista_state));
mRecicleView = container.findViewById (R.id.Reclycler_View);
mRecicleView.setHasFixedSize (true);
mLayoutManager = new GridLayoutManager (getContext (),3);
mAdapter = new adapter_dash (lista_show,lista_state, getContext (),dashboard_device.this);
mRecicleView.setLayoutManager (mLayoutManager);
mRecicleView.setAdapter (mAdapter);
runanimation1(mRecicleView,0);
Log.d("LISTA SHOW", String.valueOf (lista_show));
return fragmentView;
}
private void runanimation1(RecyclerView mRecicleView, int type) {
Context context=mRecicleView.getContext ();
LayoutAnimationController controller = null;
if(type==0)
controller = AnimationUtils.loadLayoutAnimation (context,R.anim.layout_animation);
mRecicleView.setLayoutAnimation (controller);
mRecicleView.getAdapter ().notifyDataSetChanged ();
mRecicleView.scheduleLayoutAnimation ();
}
#Override
public void push(ArrayList<String> list) {
}
}
Solved using
.getactivity().runOnUiThread (new Runnable) ect.... Ect...
I have tried using callback similar to my fragments and other people suggestion on callbacks, However I've had no luck i could be doing the callbacks wrong. The Toast inside the onResponse method of JsonArrayRequest returns an array size of 2. But i get 0 on the toast outside of the request. consignment.class implements parcelable
public class BackgroundTask{
String json_url;
Gson gson;
Type listType;
ProgressDialog pDialog;
ArrayList<Consignment> arrayList = new ArrayList<>();
AppController appController;
ConsAdapter adapter;
Context context;
public BackgroundTask(Context context){
this.context = context;
listType = new TypeToken<List<Consignment>>(){}.getType();
appController = AppController.getInstance();
gson = new Gson();
}
public void getAllCons(final GetAllConsListener callBack) {
String tag_json_obj = "json_obj_req";
//showProgressDialog();
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, json_url,null,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
callBack.onSuccess(response.toString());
//hideProgressDialog();
Toast.makeText(context, "Consignments:"+arrayList.size(), Toast.LENGTH_LONG).show();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//Toast.makeText(context, "Error...", Toast.LENGTH_SHORT).show();
error.printStackTrace();
//hideProgressDialog();
}
});
appController.addToRequestQueue(jsonArrayRequest);
}
Activity Class:
public class GetConsActivity extends AppCompatActivity {
RecyclerView recyclerView;
ConsAdapter adapter;
RecyclerView.LayoutManager layoutManager;
ArrayList<Consignment> arrayList;
TextView txtView;
BackgroundTask backgroundTask;
Type listType;
Gson gson;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_get_cons);
recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setHasFixedSize(true);
gson = new Gson();
listType = new TypeToken<ArrayList<Consignment>>(){}.getType();
BackgroundTask backgroundTask = new BackgroundTask(GetConsActivity.this);
backgroundTask.getAllCons(new GetAllConsListener() {
#Override
public void onSuccess(String response) {
ArrayList<Consignment> list = parseResponse(response);
updateUI(list);
//Toast.makeText(GetConsActivity.this, "Consignments:"+arrayList.size(), Toast.LENGTH_LONG).show();
Log.d("ONSUCCESS", "ARRAYSIZE: "+arrayList.size());
}
});
}
public ArrayList<Consignment> parseResponse(String response){
ArrayList<Consignment> list = new ArrayList<>();
try {
JSONArray jsonArray = new JSONArray(response);
Log.d("PARSE", "parseResponse: "+jsonArray.length());
JSONObject jsonObject = jsonArray.getJSONObject(0);
for (int i = 0; i<jsonArray.length();i++){
Consignment con = null;
Log.d("PARSE", "parseID: "+jsonObject.getInt("conid"));
con.setConid(jsonObject.getInt("conid"));
Log.d("PARSE", "conID: "+con.getConid());
con.setDescription(jsonObject.getString("description"));
list.add(con);
}
Log.d("PARSED", "parsedResponse: "+list.size());
} catch (JSONException e) {
e.printStackTrace();
}
//arrayList =gson.fromJson(response,new TypeToken<ArrayList<Consignment>>(){}.getType());
//updateUI(arrayList);
return list;
}
public void updateUI(ArrayList<Consignment> consignments){
this.arrayList = consignments;
Log.d("UPDATE", "parseResponse: "+consignments.size());
if (adapter == null) {
adapter = new ConsAdapter(consignments,GetConsActivity.this);
recyclerView.setAdapter(adapter);
}else{
adapter.setConsignments(consignments);
adapter.notifyDataSetChanged();
}
}
Error:
D/mali_winsys: EGLint new_window_surface(egl_winsys_display*, void*, EGLSurface, EGLConfig, egl_winsys_surface**, egl_color_buffer_format*, EGLBoolean) returns 0x3000, [1440x2560]-format:1
E/RecyclerView: No adapter attached; skipping layout
I/qtaguid: Untagging socket 51
D/ViewRootImpl: MSG_RESIZED_REPORT: ci=Rect(0, 84 - 0, 0) vi=Rect(0, 84 - 0, 0) or=1
E/RecyclerView: No adapter attached; skipping layout
D/PARSE: parseResponse: 4
D/PARSE: parseID: 123456789
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.angel.createcon, PID: 26952
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.angel.createcon.Consignment.setConid(int)' on a null object reference
at com.angel.createcon.GetConsActivity.parseResponse(GetConsActivity.java:80)
at com.angel.createcon.GetConsActivity$2.onSuccess(GetConsActivity.java:56)
at com.angel.createcon.BackgroundTask$2.onResponse(BackgroundTask.java:50)
at com.angel.createcon.BackgroundTask$2.onResponse(BackgroundTask.java:47)
at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:7331)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
I/Process: Sending signal. PID: 26952 SIG: 9
Application terminated.
So I'll take a stab at this - having the activity implement the listener that way is a bit strange, though I don't think that's the issue. I also don't understand why you chose to save the list type to a variable - I've not seen anyone do that before.
However, getting to your question about the toast and why it's 0 - If you're talking about the toast that comes after the getAllCons call -it's because that code is executed before the callback code. completes.
Try something like this and see what it does.
public class BackgroundTask{
String json_url;
Gson gson;
Type listType;
Context context;
public BackgroundTask(Context context){
this.context = context;
listType = new TypeToken<List<Consignment>>(){}.getType();
appController = AppController.getInstance();
gson = new Gson();
}
public void getAllCons(final GetAllConsListener callBack) {
String tag_json_obj = "json_obj_req";
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, json_url,null,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
callBack.onSuccess(response.toString());
Toast.makeText(context, "Consignments:"+arrayList.size(), Toast.LENGTH_LONG).show();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
}
});
appController.addToRequestQueue(jsonArrayRequest);
}
public class GetConsActivity extends AppCompatActivity {
RecyclerView recyclerView;
ConsAdapter adapter;
RecyclerView.LayoutManager layoutManager;
TextView txtView;
BackgroundTask backgroundTask;
Gson gson;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_get_cons);
recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setHasFixedSize(true);
gson = new Gson();
BackgroundTask backgroundTask = new BackgroundTask(GetConsActivity.this);
backgroundTask.getAllCons(new GetAllConsListener() {
#Override
public void onSuccess(String response) {
List<Consignment> values = parseResponse(response);
updateUI(values);
}
});
//code may execute here but callback is not yet complete.
}
public List<Consignment> parseResponse(String response){
return gson.fromJson(response,listType);
}
private void updateUI(List<Consignment> consignments){
if(adapter == null){
adapter = new ConsAdapter(consignments)
recyclerView.setAdapter(adapter);
} else {
adapter.consignments = consignments;
adapter.notifyDataSetChanged();
}
}
If I use the following code, I will have no error, but there will be a freeze time.
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
setContentView(R.layout.profilepic);
initialize();
Bundle bundle = getIntent().getExtras();
email = bundle.getString("Email");
ArrayList<NameValuePair> postParameters;
String response = null;
postParameters = new ArrayList<NameValuePair>();
postParameters.add(new BasicNameValuePair("emaillog", email));
try {
response = CustomHttpClient.executeHttpPost("http://whatstherex.info/checkU.php", postParameters);
res = response.toString();
res = res.replaceAll("null", "");
username = res.toString();
tvProfilePic.setText("Hi " + username + ", you are encourage to add a profile picture.");
}catch(Exception e){
res = e.toString();
tvProfilePic.setText(res);
}
}
But if I use this code with asyncTask and progressDialog like this:
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
setContentView(R.layout.profilepic);
initialize();
getUsername();
}
private AsyncTask<String, Void, String> task;
public void getUsername(){
Bundle bundle = getIntent().getExtras();
email = bundle.getString("Email");
task = new AsyncTask<String, Void, String>() {
ProgressDialog dialog;
ArrayList<NameValuePair> postParameters;
String response = null;
#Override
protected void onPreExecute() {
//
ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();
postParameters.add(new BasicNameValuePair("emaillog", email));
dialog = new ProgressDialog(Profilepic.this, ProgressDialog.STYLE_SPINNER);
dialog.setMessage("Loading Data...");
dialog.show();
}
#Override
protected String doInBackground(String... params) {
//
try {
response = CustomHttpClient.executeHttpPost("http://whatstherex.info/checkU.php", postParameters);
res = response.toString();
res = res.replaceAll("null", "");
username = res.toString();
return username;
}catch(Exception e){
res = e.toString();
return res;
}
}
#Override
protected void onPostExecute(String result) {
if(result.length()< 25){
username = result;
tvProfilePic.setText("Hi " + result + ", you are encourage to add a profile picture.");
dialog.dismiss();
}else{
tvProfilePic.setText(result);
dialog.dismiss();
}
}
};
task.execute();
}
I get java.lang.NullPointerException in the textview.
What's the problem? Can anyone help me how to resolve this issue with NullPointerException appearing?
I see that you use tvProfilePic but I don't see where you define it.
In case you are not defining it, it should be done in a similar way as
tvProfilePic = findViewById(R.id.profile_pic)
Are you doing this?
Note that 'profile_pic' is the name in the layout XML document.
You are using tvProfilePic as a textview but i can't see where you defined it.
if you are not defining it then define it using something like
tvProfilePic = findViewById(R.id.profile_pic)
You are getting nullpointerexception because your tvProfilePic is null