I am working on a android project where I have to implement search view on the action bar . I am able to parse the JSON data into recycler view using volley. when I try to add a search view, and start typing the text the list is getting disappeared.
Activity:
public class Fragment_Church_News extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
private ListView listView;
Context con;
private ChurchNewsFeedListAdapter listAdapter;
private List<ChurchNewsFeedItem> feedItemschurchnews;
int a = Keys.LANGUGAE_KEY;
public Fragment_Church_News() {
// Required empty public constructor
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_church_list);
con = this;
if(Keys.LANGUGAE_KEY == 0)
{
a = 2;
}
else
{
a=1;
}
Toast.makeText(this, "aaaaaaa"+a+"", Toast.LENGTH_SHORT).show();
listView = (ListView) findViewById(R.id.list);
feedItemschurchnews = new ArrayList<ChurchNewsFeedItem>();
listAdapter = new ChurchNewsFeedListAdapter(this, feedItemschurchnews,con);
listView.setAdapter(listAdapter);
Toast.makeText(this, "a", Toast.LENGTH_SHORT).show();
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
TextView c = (TextView) view.findViewById(R.id.news_details);
String idfromtextview = c.getText().toString().trim();
Intent testIntent = new Intent(Fragment_Church_News.this, MainColapse.class);
testIntent.putExtra("txtpersonid", idfromtextview);
startActivity(testIntent);
}
});
/////
// We first check for cached request
Cache cache = AppController.getInstance().getRequestQueue().getCache();
Cache.Entry entry = cache.get("http://52.89.46.93/churchListAppDump/?methodName=church.list&app_language_name="+a+"");
if (entry != null) {
// fetch the data from cache
try {
String data = new String(entry.data, "UTF-8");
try {
parseJsonFeed(new JSONObject(data));
} catch (JSONException e) {
e.printStackTrace();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
} else {
// making fresh volley request and getting json
JsonObjectRequest jsonReq = new JsonObjectRequest(Request.Method.GET,
"http://52.89.46.93/churchListAppDump/?methodName=church.list&app_language_name="+a+"", null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
VolleyLog.d(TAG, "Response: " + response.toString());
;
if (response != null) {
parseJsonFeed(response);
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
// Adding request to volley request queue
AppController.getInstance().addToRequestQueue(jsonReq);
}
}
private void parseJsonFeed(JSONObject response) {
try {
JSONArray feedArray = response.getJSONArray("responseMsg");
for (int i = 0; i < feedArray.length(); i++) {
JSONObject feedObj = (JSONObject) feedArray.get(i);
ChurchNewsFeedItem item = new ChurchNewsFeedItem();
item.setNews_title(feedObj.getString("church_name"));
String image = feedObj.isNull("church_image") ? null : feedObj
.getString("church_image");
item.setNews_image(image);
item.setNews_details(feedObj.getString("admin_id"));
// String priya = feedObj.getString("admin_id");
feedItemschurchnews.add(item);
}
// notify data changes to list adapater
listAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
public static void deleteCache(Context context) {
try {
File dir = context.getCacheDir();
deleteDir(dir);
} catch (Exception e) {
}
}
public static boolean deleteDir(File dir) {
if (dir != null && dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
boolean success = deleteDir(new File(dir, children[i]));
if (!success) {
return false;
}
}
return dir.delete();
} else if (dir != null && dir.isFile()) {
return dir.delete();
} else {
return false;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
//getMenuInflater().inflate(R.menu.menu_search, menu);
MenuInflater inflater = getMenuInflater();
// Inflate menu to add items to action bar if it is present.
inflater.inflate(R.menu.search_main, menu);
SearchManager manager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView search = (SearchView) menu.findItem(R.id.action_search).getActionView();
search.setSearchableInfo(manager.getSearchableInfo(getComponentName()));
search.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
PerfromSearch(newText);
return false;
}
});
return true;
}
void PerfromSearch(String query) {
listAdapter.filter(query);
}
}
Adapter:
public class ChurchNewsFeedListAdapter extends BaseAdapter
{
private Activity activity;
private LayoutInflater inflater;
Context mContext;
private List<ChurchNewsFeedItem> churhcnewsfeedItems, churchNewsFeedItemssearched=null;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
//List<ChurchNewsFeedItem> arraylist;
public ChurchNewsFeedListAdapter(Activity activity, List<ChurchNewsFeedItem> feedItems,Context context) {
this.activity = activity;
this.churhcnewsfeedItems = feedItems;
this.churchNewsFeedItemssearched = new ArrayList<ChurchNewsFeedItem>();
this.churchNewsFeedItemssearched.addAll(feedItems);
// mContext = this;
this.mContext = context;
}
#Override
public int getCount() {
return churhcnewsfeedItems.size();
}
#Override
public Object getItem(int location) {
return churhcnewsfeedItems.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.churchnews_feed_item, null);
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
TextView newstitle = (TextView) convertView.findViewById(R.id.news_title);
TextView newdetails = (TextView) convertView
.findViewById(R.id.news_details);
ChurchNewsFeedImageView feedImageView = (ChurchNewsFeedImageView) convertView
.findViewById(R.id.news_feedImage);
ChurchNewsFeedItem item = churhcnewsfeedItems.get(position);
newstitle.setText(item.getNews_title());
// Chcek for empty status message
if (!TextUtils.isEmpty(item.getNews_details())) {
newdetails.setText(item.getNews_details());
newdetails.setVisibility(View.VISIBLE);
} else {
// status is empty, remove from view
newdetails.setVisibility(View.GONE);
}
// Feed image
if (item.getNews_image() != null) {
feedImageView.setImageUrl(item.getNews_image(), imageLoader);
feedImageView.setVisibility(View.VISIBLE);
feedImageView
.setResponseObserver(new ChurchNewsFeedImageView.ResponseObserver() {
#Override
public void onError()
{
}
#Override
public void onSuccess() {
}
});
} else {
feedImageView.setVisibility(View.GONE);
}
return convertView;
}
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
Toast.makeText(mContext, "divakar"+churchNewsFeedItemssearched, Toast.LENGTH_SHORT).show();
churhcnewsfeedItems.clear();
if (charText.length() == 0) {
churhcnewsfeedItems.addAll(churchNewsFeedItemssearched);
} else {
for (ChurchNewsFeedItem wp : churchNewsFeedItemssearched) {
if (wp.getNews_title().toLowerCase(Locale.getDefault())
.contains(charText)) {
churhcnewsfeedItems.add(wp);
}
}
}
notifyDataSetChanged();
}
}
Seems your churchNewsFeedItemssearched list is NULL. Because when you initialize ChurchNewsFeedListAdapter you are passing feedItemschurchnews with 0 items:
listAdapter = new ChurchNewsFeedListAdapter(this, feedItemschurchnews, con);
So, for this your Adapter's constructor works like below:
public ChurchNewsFeedListAdapter(Activity activity, List<ChurchNewsFeedItem> feedItems,Context context) {
this.activity = activity;
this.churhcnewsfeedItems = feedItems; // SIZE 0
this.churchNewsFeedItemssearched = new ArrayList<ChurchNewsFeedItem>();
this.churchNewsFeedItemssearched.addAll(feedItems); // SIZE 0
}
SOLUTION:
You have to update list churchNewsFeedItemssearched.
Add method updateSearchedList() to your ChurchNewsFeedListAdapter class to update the churchNewsFeedItemssearched and call this method from parseJsonFeed() after adding all items to feedItemschurchnews.
Update your code as below:
ChurchNewsFeedListAdapter:
public void updateSearchedList() {
churchNewsFeedItemssearched.addAll(churhcnewsfeedItems);
}
Fragment_Church_News:
private void parseJsonFeed(JSONObject response) {
try {
JSONArray feedArray = response.getJSONArray("responseMsg");
for (int i = 0; i < feedArray.length(); i++) {
JSONObject feedObj = (JSONObject) feedArray.get(i);
ChurchNewsFeedItem item = new ChurchNewsFeedItem();
item.setNews_title(feedObj.getString("church_name"));
String image = feedObj.isNull("church_image") ? null : feedObj
.getString("church_image");
item.setNews_image(image);
item.setNews_details(feedObj.getString("admin_id"));
// String priya = feedObj.getString("admin_id");
feedItemschurchnews.add(item);
}
// Update
listAdapter.updateSearchedList();
// notify data changes to list adapater
listAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
Hope this will work~
Related
I have some problem about setting and getting id from data that showed with volley JSon array request.
I've tried to do this, but it fail.
ChildTidur.java
public class ChildTidur extends AppCompatActivity implements TidurAdapter.ContactsAdapterListener {
private static final String TAG = ChildTidur.class.getSimpleName();
private RecyclerView recyclerView;
private List<Story> storyList;
private TidurAdapter mAdapter;
private SearchView searchView;
private TextView noFavtsTV;
private AppPreferences appPreferences;
// CONNECTION_TIMEOUT and READ_TIMEOUT are in milliseconds
public static final int CONNECTION_TIMEOUT = 2000;
public static final int READ_TIMEOUT = 2000;
final String KEY_SAVED_RADIO_BUTTON_INDEX = "SAVED_RADIO_BUTTON_INDEX";
// url to fetch contacts json
private static final String URL = "https://api.kafeinkode.com/childtidur.json";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.child_tidur);
AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);
SwipeRefreshLayout pullToRefresh = findViewById(R.id.pullToRefresh);
pullToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
finish();
startActivity(getIntent());
}
});
//toolbar logo and desc
Toolbar topToolBar = (Toolbar) findViewById(R.id.toolbarTidur);
setSupportActionBar(topToolBar); //munculkan menu ke toolbar
getSupportActionBar().setDisplayHomeAsUpEnabled(true); //this line shows back button
recyclerView = findViewById(R.id.recycler_view);
noFavtsTV = findViewById(R.id.no_favt_text);
storyList = new ArrayList<>();
mAdapter = new TidurAdapter(this, storyList, this, appPreferences);
// white background notification bar
whiteNotificationBar(recyclerView);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.addItemDecoration(new TidurDekor(this, DividerItemDecoration.VERTICAL, 36));
recyclerView.setAdapter(mAdapter);
//Make call to AsyncTask
new AsyncLogin().execute();
//Get radio button value
LoadPreferences();
} //OnCreate
private void showNoFavtText(boolean show) {
noFavtsTV.setVisibility(show ? View.VISIBLE : View.GONE); //jika data yang ditampilkan tidak ada, maka show noFavsTv
recyclerView.setVisibility(show ? View.GONE : View.VISIBLE); //jika data yang ditampilkan tidak ada, maka don't show rV
}
private void LoadPreferences(){
LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View contentView = inflater.inflate(R.layout.activity_settings, null,false);
RadioGroup radioGroup = (RadioGroup)contentView.findViewById(R.id.radioSex);
SharedPreferences sharedPreferences = getSharedPreferences("MY_SHARED_PREF", MODE_PRIVATE);
int savedRadioIndex = sharedPreferences.getInt(KEY_SAVED_RADIO_BUTTON_INDEX, 0);
RadioButton savedCheckedRadioButton = (RadioButton)radioGroup.getChildAt(savedRadioIndex);
savedCheckedRadioButton.setChecked(true);
RadioGroup genderGroup = (RadioGroup) contentView.findViewById(R.id.radioSex);
RadioButton male = (RadioButton) contentView.findViewById(R.id.theme1);
RadioButton female = (RadioButton) contentView.findViewById(R.id.theme2);
if (genderGroup.getCheckedRadioButtonId() == -1) {
Toolbar tb = (Toolbar) findViewById(R.id.toolbarTidur);
tb.setBackgroundColor(getResources().getColor(R.color.colorPrimaryDark));
}
else {
if (male.isChecked()) { // one of the radio buttons is checked
Toolbar tb1 = (Toolbar) findViewById(R.id.toolbarTidur);
tb1.setBackgroundColor(getResources().getColor(R.color.colorPrimaryDark));
}
else if (female.isChecked()) {
Toolbar tb2 = (Toolbar) findViewById(R.id.toolbarTidur);
tb2.setBackgroundColor(getResources().getColor(R.color.colorAccent));
}
}
}
private class AsyncLogin extends AsyncTask<String, String, String> {
ProgressDialog pdLoading = new ProgressDialog(ChildTidur.this);
HttpURLConnection conn;
java.net.URL url = null;
#Override
protected void onPreExecute() {
super.onPreExecute();
//this method will be running on UI thread
showNoFavtText(false);
pdLoading.setMessage("\tMencoba terhubung ke internet...");
pdLoading.setCancelable(false);
pdLoading.show();
}
#Override
protected String doInBackground(String... params) {
try {
// Enter URL address where your json file resides
// Even you can make call to php file which returns json data
url = new URL("https://api.kafeinkode.com/childtidur.json");
} 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();
}
}
/**
* fetches json by making http calls
*/
protected void onPostExecute(String result) {
JsonArrayRequest request = new JsonArrayRequest(URL, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
pdLoading.dismiss();
Log.d(TAG, response.toString());
if (response.length() > 0) {
// Parsing json
List<Story> items = new Gson().fromJson(response.toString(), new TypeToken<List<Story>>() {
}.getType());
// adding contacts to contacts list
storyList.clear();
storyList.addAll(items);
// refreshing recycler view
mAdapter.notifyDataSetChanged();
for (int i=0; i<storyList.size(); i++) {
Story story = new Story();
story.setIdStory(String.valueOf(i));
}
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pdLoading.dismiss();
// error in getting json
Log.e(TAG, "Error: " + error.getMessage());
Toast.makeText(getApplicationContext(), "Tidak bisa menampilkan data. Periksa kembali sambungan internet Anda", Toast.LENGTH_LONG).show();
AlertDialog alertDialog = new AlertDialog.Builder(ChildTidur.this).create();
alertDialog.setTitle("Error");
alertDialog.setMessage("Data Tidak bisa ditampilkan. Periksa kembali sambungan internet Anda");
alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alertDialog.show();
showNoFavtText(true);
}
});
TidurSearch.getInstance().addToRequestQueue(request);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.search_tidur, menu);
getMenuInflater().inflate(R.menu.menu_main, menu);
// Associate searchable_tidur configuration with the SearchView
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
searchView = (SearchView) menu.findItem(R.id.action_search2).getActionView();
searchView.setSearchableInfo(searchManager
.getSearchableInfo(getComponentName()));
searchView.setMaxWidth(Integer.MAX_VALUE);
// listening to search query text change
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
// filter recycler view when query submitted
mAdapter.getFilter().filter(query);
return false;
}
#Override
public boolean onQueryTextChange(String query) {
// filter recycler view when text is changed
mAdapter.getFilter().filter(query);
return false;
}
});
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_search2) {
return true;
}
//Menu
if (id == R.id.action_settings) {
startActivity(new Intent(this, SettingsActivity.class));
return true;
}
else
if (id == R.id.about_us) {
startActivity(new Intent(this, AboutUs.class));
return true;
}
else
if (id == R.id.favlist) {
startActivity(new Intent(this, ShowFavouriteList.class));
return true;
}
switch (item.getItemId()) {
case android.R.id.home:
this.finish();
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onBackPressed() {
// close search view on back button pressed
if (!searchView.isIconified()) {
searchView.setIconified(true);
return;
}
super.onBackPressed();
}
private void whiteNotificationBar(View view) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
int flags = view.getSystemUiVisibility();
flags |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
view.setSystemUiVisibility(flags);
getWindow().setStatusBarColor(Color.WHITE);
}
}
#Override
public void onContactSelected(Story story) {
Toast.makeText(getApplicationContext(), "Selected: " + story.getName(), Toast.LENGTH_LONG).show();
}
}
TidurAdapter.java
public void onClick(View view) {
// Another problem lays here when I get id of data
Story story = storyList.get(getLayoutPosition());
int ambilId = Integer.parseInt(story.getIdStory());
if ( 0 == ambilId ) {
Intent myIntent = new Intent(view.getContext(), DoaMauTidur.class);
view.getContext().startActivity(myIntent);
}
else if ( 1 == getAdapterPosition() )
{
Intent myIntent = new Intent(view.getContext(), DoaBangunt.class);
view.getContext().startActivity(myIntent);
}
else if ( 2 == getAdapterPosition() )
{
Intent myIntent = new Intent(view.getContext(), DoaJimak.class);
view.getContext().startActivity(myIntent);
}
}
This is a full code:
Story.java
public Story(){}
String name;
String nomor;
private String idStory;
private int isLiked;
public String getName() {
return name;
}
public String getNomor() { return nomor; }
public void setIdStory(String isStory) {
this.idStory = isStory;
}
public String getIdStory() {
return idStory;
}
public void setIsLiked(int isLiked) {
this.isLiked = isLiked;
}
public int getIsLiked() {
return isLiked;
}
}
ChildTidur.java
/**
* fetches json by making http calls
*/
protected void onPostExecute(String result) {
JsonArrayRequest request = new JsonArrayRequest(URL, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
pdLoading.dismiss();
Log.d(TAG, response.toString());
if (response.length() > 0) {
// Parsing json
List<Story> items = new Gson().fromJson(response.toString(), new TypeToken<List<Story>>() {
}.getType());
// adding contacts to contacts list
storyList.clear();
storyList.addAll(items);
// refreshing recycler view
mAdapter.notifyDataSetChanged();
for (int i=0; i<storyList.size(); i++) {
Story story = new Story();
story.setIdStory(String.valueOf(i));
}
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pdLoading.dismiss();
// error in getting json
Log.e(TAG, "Error: " + error.getMessage());
Toast.makeText(getApplicationContext(), "Tidak bisa menampilkan data. Periksa kembali sambungan internet Anda", Toast.LENGTH_LONG).show();
AlertDialog alertDialog = new AlertDialog.Builder(ChildTidur.this).create();
alertDialog.setTitle("Error");
alertDialog.setMessage("Data Tidak bisa ditampilkan. Periksa kembali sambungan internet Anda");
alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alertDialog.show();
showNoFavtText(true);
}
});
TidurSearch.getInstance().addToRequestQueue(request);
}
}
TidurAdapter.java
public class TidurAdapter extends RecyclerView.Adapter<TidurAdapter.TidurViewHolder> implements Filterable {
private Context context;
private List<Story> storyList;
private List<Story> storyListFiltered;
private ContactsAdapterListener listener;
private int changedItemPosition;
public boolean isLiked;
private AppPreferences appPreferences;
Boolean checked = false;
public TidurAdapter(Context context, List<Story> storyList, ContactsAdapterListener listener, AppPreferences appPreferences) {
this.context = context;
this.listener = listener;
this.storyList = storyList;
this.storyListFiltered = storyList;
this.appPreferences = appPreferences;
}
#Override
public TidurViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.child_row_item_tidur, parent, false);
return new TidurViewHolder(itemView);
}
#Override
public void onBindViewHolder(#NonNull TidurViewHolder holder, int position) {
final Story story = storyListFiltered.get(position);
holder.name.setText(story.getName());
holder.nomor.setText(story.getNomor());
holder.setViewData(storyList.get(position), holder.getAdapterPosition());
}
#Override
public int getItemCount() {
return storyListFiltered.size();
}
public interface ContactsAdapterListener {
void onContactSelected(Story story);
}
//ViewHolder
public class TidurViewHolder extends RecyclerView.ViewHolder {
public TextView name;
public TextView nomor;
public ImageView mFavorite;
private CheckBox likeCheckBox;
final String KEY_SAVED_RADIO_BUTTON_INDEX = "SAVED_RADIO_BUTTON_INDEX";
public TidurViewHolder(View view) {
super(view);
name = view.findViewById(R.id.name);
nomor = view.findViewById(R.id.nomor);
likeCheckBox = itemView.findViewById(R.id.like_button_cb);
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// get id of data
Story story = storyList.get(getLayoutPosition());
int ambilId = Integer.parseInt(story.getIdStory());
if ( 0 == ambilId ) {
Intent myIntent = new Intent(view.getContext(), DoaMauTidur.class);
view.getContext().startActivity(myIntent);
}
else if ( 1 == getAdapterPosition() )
{
Intent myIntent = new Intent(view.getContext(), DoaBangunt.class);
view.getContext().startActivity(myIntent);
}
else if ( 2 == getAdapterPosition() )
{
Intent myIntent = new Intent(view.getContext(), DoaJimak.class);
view.getContext().startActivity(myIntent);
}
}
});
//Get radio button value
LayoutInflater inflater = (LayoutInflater) view.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View cV = inflater.inflate(R.layout.activity_settings, null,false);
RadioGroup radioGroup = (RadioGroup)cV.findViewById(R.id.radioSex);
SharedPreferences sharedPreferences = view.getContext().getSharedPreferences("MY_SHARED_PREF", Activity.MODE_PRIVATE);
int savedRadioIndex = sharedPreferences.getInt(KEY_SAVED_RADIO_BUTTON_INDEX, 0);
RadioButton savedCheckedRadioButton = (RadioButton)radioGroup.getChildAt(savedRadioIndex);
savedCheckedRadioButton.setChecked(true);
RadioGroup genderGroup = (RadioGroup) cV.findViewById(R.id.radioSex);
RadioButton male = (RadioButton) cV.findViewById(R.id.theme1);
RadioButton female = (RadioButton) cV.findViewById(R.id.theme2);
if (genderGroup.getCheckedRadioButtonId() == -1) {
nomor.setBackgroundColor(view.getResources().getColor(R.color.colorPrimaryDark));
} else {
if (male.isChecked()) { // one of the radio buttons is checked
nomor.setBackgroundDrawable(ContextCompat.getDrawable(view.getContext(), R.drawable.rounded_drawable));
}
else if (female.isChecked()) {
nomor.setBackgroundDrawable(ContextCompat.getDrawable(view.getContext(), R.drawable.rounded_drawable_red));
}
}
} //TidurViewHolder(View view)
public void setViewData(final Story story, final int adapterPosition) {
if (story.getIsLiked() == 1) {
likeCheckBox.setChecked(true);
}
else {
likeCheckBox.setChecked(false);
}
likeCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
changedItemPosition = adapterPosition;
if (buttonView.isPressed()) {
if (isChecked) {
isLiked = true;
updateLikes();
appPreferences.saveFavouriteCard(story);
Toast.makeText(context, "Saved", Toast.LENGTH_SHORT).show();
}
else {
isLiked = false;
updateLikes();
appPreferences.deleteCard(story.getIdStory());
Toast.makeText(context, "Removed", Toast.LENGTH_SHORT).show();
}
}
}
});
} //setviewdata
public void updateLikes() {
if (isLiked && storyList.get(changedItemPosition).getIsLiked() == 0) { //jika dilakukan like (pada posisi hati kosong) di halaman home
storyList.get(changedItemPosition).setIsLiked(1); //maka jadikan hati berwarna merah di halaman favourite list
notifyItemChanged(changedItemPosition, ACTION_LIKE_IMAGE_CLICKED);
}
else if (!isLiked && storyList.get(changedItemPosition).getIsLiked() == 1) { //jika like dicabut (pada posisi hati yang sedang merah) di halaman home
storyList.get(changedItemPosition).setIsLiked(0); //maka cabut juga warna merah di halaman favourite list
notifyItemChanged(changedItemPosition, ACTION_LIKE_IMAGE_CLICKED);
}
} //updateLikes
}//Class TidurViewHolder
}
The error result is, it is showing null... Which mean no ID that can be obtained.
In your for loop you are not setting id of your List, but your new Story.
Instead of:
for (int i=0; i<storyList.size(); i++) {
Story story = new Story();
story.setIdStory(String.valueOf(i));
}
Use this:
for (int i=0; i<storyList.size(); i++) {
storyList.get(i).setIdStory(String.valueOf(i));
}
Also because your index i=0 starts from zero, you should change for loop index i to start from 1 like this:
for (int i=1; i<=storyList.size(); i++) {
storyList.get(i).setIdStory(String.valueOf(i));
}
Check this main activity:
public class MainActivity extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
// CONNECTION_TIMEOUT and READ_TIMEOUT are in milliseconds
private ArrayList<Story> storyList;
// url to fetch contacts json
private static final String URL = "https://api.kafeinkode.com/childtidur.json";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
storyList = new ArrayList<>();
//Fetch JSON data
fetchData();
}
private void fetchData(){
JsonArrayRequest request = new JsonArrayRequest(URL, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
if (response.length() > 0) {
// Parsing json
List<Story> items = new Gson().fromJson(response.toString(), new TypeToken<List<Story>>() {}.getType());
// adding contacts to contacts list
storyList.clear();
storyList.addAll(items);
for (int i=0; i<storyList.size(); i++) {
storyList.get(i).setIdStory(String.valueOf(i + 1));
}
Log.d("StoryLid: ", storyList.toString());
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// error in getting json
Log.e(TAG, "Error: " + error.getMessage());
}
});
VolleyService.getInstance(this).getRequestQueue().add(request);
}
}
As a result you have response:
I have a listview in which in each row I have a checkbox along with details o persons. Now on clicking checkboxes, I want to store the id of those persons in arrayList which I am able to store but the arrayList id in adapter. I want to access the arrayList in activity because I want to take a button in activity on clicking which I want to send ids of all the selected persons to another activity. How do I do that.
My code is below:
SendWorkList.java
public class SendWorkList extends AppCompatActivity {
List<SendWorkRow> send_work_array_list;
ListView send_work_list;
JSONArray send_work_jsonArray1,send_work_result_jsonArray2;
JSONObject send_work_jsonObject1,send_work_result_jsonArray2_i;
String[] send_work_id,send_work_name,send_work_bankaccount,send_work_ifsc,send_work_contacts,send_work_department,send_work_cardnumber,send_work_cardexpiry,send_work_cardcvv;
String send_work_status,send_work_result;
ViewGroup send_work_headerView;
Set<Integer> send_work_count;
Intent intent;
Set<String> indexes;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_send_work);
send_work_list=findViewById( R.id.send_work_list);
send_work_array_list=new ArrayList<SendWorkRow>();
send_work_count= new HashSet<>();
}
#Override
protected void onResume() {
super.onResume();
cardDetailsList();
/* send_work_list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
Toast.makeText(SendWorkList.this, "assasa", Toast.LENGTH_SHORT).show();
}
});*/
}
private void cardDetailsList()
{
RequestQueue rq = Volley.newRequestQueue(SendWorkList.this);
StringRequest stringRequest = new StringRequest( Request.Method.GET,
"http://grepthorsoftware.in/tst/bank_account/showingdata.php",
new Response.Listener<String>() {
public void onResponse(String response) {
try {
send_work_jsonArray1=new JSONArray(response);
send_work_jsonObject1 = send_work_jsonArray1.getJSONObject(0);
send_work_status= send_work_jsonObject1.getString("status");
if(send_work_status.equals("1")) {
send_work_result = send_work_jsonObject1.getString("result");
send_work_result_jsonArray2 = new JSONArray(send_work_result);
send_work_id = new String[send_work_result_jsonArray2.length()];
send_work_name = new String[send_work_result_jsonArray2.length()];
send_work_bankaccount = new String[send_work_result_jsonArray2.length()];
send_work_ifsc = new String[send_work_result_jsonArray2.length()];
send_work_contacts = new String[send_work_result_jsonArray2.length()];
send_work_department =new String[send_work_result_jsonArray2.length()];
send_work_cardnumber = new String[send_work_result_jsonArray2.length()];
send_work_cardexpiry = new String[send_work_result_jsonArray2.length()];
send_work_cardcvv= new String[send_work_result_jsonArray2.length()];
if ( send_work_name.length > 0 || send_work_id.length > 0 || send_work_bankaccount.length > 0 || send_work_ifsc.length > 0 || send_work_contacts.length > 0)
{
send_work_id = null;
send_work_name = null;
send_work_bankaccount = null;
send_work_ifsc = null;
send_work_contacts = null;
send_work_department= null;
send_work_cardnumber= null;
send_work_cardexpiry= null;
send_work_cardcvv= null;
send_work_id = new String[send_work_result_jsonArray2.length()];
send_work_name = new String[send_work_result_jsonArray2.length()];
send_work_bankaccount = new String[send_work_result_jsonArray2.length()];
send_work_ifsc = new String[send_work_result_jsonArray2.length()];
send_work_contacts = new String[send_work_result_jsonArray2.length()];
send_work_department =new String[send_work_result_jsonArray2.length()];
send_work_cardnumber = new String[send_work_result_jsonArray2.length()];
send_work_cardexpiry = new String[send_work_result_jsonArray2.length()];
send_work_cardcvv= new String[send_work_result_jsonArray2.length()];
}
for(int i=0;i<send_work_result_jsonArray2.length();i++)
{
send_work_result_jsonArray2_i=send_work_result_jsonArray2.getJSONObject(i);
send_work_id[i] = send_work_result_jsonArray2_i.getString("id");
send_work_name[i] = send_work_result_jsonArray2_i.getString("Name");
send_work_bankaccount[i] = send_work_result_jsonArray2_i.getString("Bankaccount");
send_work_ifsc[i] = send_work_result_jsonArray2_i.getString("IFSC");
send_work_contacts[i] = send_work_result_jsonArray2_i.getString("Contact");
send_work_department[i] = send_work_result_jsonArray2_i.getString("Department");
send_work_cardnumber[i] = send_work_result_jsonArray2_i.getString("Cardnumber");
send_work_cardexpiry[i] = send_work_result_jsonArray2_i.getString("Cardexpiry");
send_work_cardcvv[i] = send_work_result_jsonArray2_i.getString("Cardcvv");
}
if ( send_work_array_list.size() > 0) {
send_work_array_list.clear();
}
for (int i = 0; i < send_work_id.length && i< send_work_name.length && i < send_work_bankaccount.length && i < send_work_ifsc.length && i < send_work_contacts.length && i < send_work_department.length && i< send_work_cardnumber.length && i< send_work_cardexpiry.length && i< send_work_cardcvv.length; i++) {
send_work_array_list.add(new SendWorkRow( send_work_id[i], send_work_name[i], send_work_bankaccount[i], send_work_ifsc[i], send_work_contacts[i], send_work_department[i], send_work_cardnumber[i], send_work_cardexpiry[i],send_work_cardcvv[i]));
}
if ( send_work_headerView != null) {
send_work_list.removeHeaderView( send_work_headerView);
}
send_work_headerView = (ViewGroup) getLayoutInflater().inflate(R.layout.send_work_list_view_header, send_work_list, false);
send_work_list.addHeaderView( send_work_headerView);
send_work_list.setAdapter(new SendWorkAdapter(SendWorkList.this, send_work_array_list));
}
}catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
};
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError arg0) {
// TODO Auto-generated method stub
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
return params;
}
};
rq.add(stringRequest);
}
}
SendWorkAdapter.java
public class SendWorkAdapter extends BaseAdapter {
Context context;
List<SendWorkRow> send_work_array_list;
Set<String> indexes;
public SendWorkAdapter(Context context, List<SendWorkRow> send_work_array_list)
{
this.context=context;
this.send_work_array_list=send_work_array_list;
indexes = new HashSet<String>();
}
#Override
public int getCount() {
return send_work_array_list.size();
}
#Override
public Object getItem(int i) {
return i;
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(final int position, View convertView, ViewGroup viewGroup) {
LayoutInflater inflater= (LayoutInflater) context.getSystemService( Context.LAYOUT_INFLATER_SERVICE );
View view=inflater.inflate( R.layout.send_work_list_view_row,viewGroup,false);
CheckBox textView1=view.findViewById( R.id.send_work_checkbox_row);
TextView textView2=view.findViewById( R.id.send_work_name_row );
TextView textView3=view.findViewById( R.id.send_work_bank_account_row );
TextView textView4=view.findViewById( R.id.send_work_ifsc_row );
TextView textView5=view.findViewById( R.id.send_work_contact_number_row );
TextView textView6=view.findViewById( R.id.send_work_department_row );
TextView textView7=view.findViewById( R.id.send_work_card_number_row );
TextView textView8=view.findViewById( R.id.send_work_expiry_date_row );
TextView textView9=view.findViewById( R.id.send_work_cvv_row );
final SendWorkRow account_details_row=send_work_array_list.get( position );
textView2.setText( account_details_row.getSendWorkCardDetailsName() );
textView3.setText( account_details_row.getSendWorkCardDetailsBankAccount() );
textView4.setText( account_details_row.getSendWorkCardDetailsIfsc());
textView5.setText( account_details_row.getSendWorkCardDetailsContacts() );
textView6.setText( account_details_row.getSendWorkCardDetailsDepartment() );
textView7.setText( account_details_row.getSendWorkCardDetailsCardNumber() );
textView8.setText( account_details_row.getSendWorkCardDetailsCardExpiry() );
textView9.setText( account_details_row.getSendWorkCardDetailsCardCvv() );
textView1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if(compoundButton.isChecked()){
Toast.makeText(context, account_details_row.getSendWorkCardDetailsId(), Toast.LENGTH_SHORT).show();
indexes.add(account_details_row.getSendWorkCardDetailsId());
}
}
});
return view;
}
}
SendWorkRow.java
public class SendWorkRow {
private String send_work_id,send_work_name,send_work_bankaccount,send_work_ifsc,send_work_contacts,send_work_department,send_work_cardnumber,send_work_cardexpiry,send_work_cardcvv;
public SendWorkRow(String send_work_id, String send_work_name, String send_work_bankaccount, String send_work_ifsc, String send_work_contacts,String send_work_department,String send_work_cardnumber,String send_work_cardexpiry,String send_work_cardcvv) {
this.send_work_id = send_work_id;
this.send_work_name = send_work_name;
this.send_work_bankaccount = send_work_bankaccount;
this.send_work_ifsc = send_work_ifsc;
this.send_work_contacts = send_work_contacts;
this.send_work_department = send_work_department;
this.send_work_cardnumber = send_work_cardnumber;
this.send_work_cardexpiry = send_work_cardexpiry;
this.send_work_cardcvv = send_work_cardcvv;
}
//Getters
public String getSendWorkCardDetailsId() {
return send_work_id;
}
public String getSendWorkCardDetailsName() {
return send_work_name;
}
public String getSendWorkCardDetailsBankAccount() {
return send_work_bankaccount;
}
public String getSendWorkCardDetailsIfsc() {
return send_work_ifsc;
}
public String getSendWorkCardDetailsContacts() {
return send_work_contacts;
}
public String getSendWorkCardDetailsDepartment() {
return send_work_department;
}
public String getSendWorkCardDetailsCardNumber() {
return send_work_cardnumber;
}
public String getSendWorkCardDetailsCardExpiry() {
return send_work_cardexpiry;
}
public String getSendWorkCardDetailsCardCvv() {
return send_work_cardcvv;
}
}
Create one method in adapter like
public class SendWorkAdapter extends BaseAdapter {
public List<SendWorkRow> getAllWorkRows() {
return send_work_array_list;
}
}
and access this method using adapter instance in activity.
Another way is you can write a method in Adapter where you will find all selected ids in a List and return. So whenever you will require list of selected ids, call this method from Activity and do your task. like
public class SendWorkAdapter extends BaseAdapter {
public List<SendWorkRow> getAllSelectedWorkRows() {
// write your logic to find selected rows
return result;
}
}
I am creating an application with a list that list cards based on the value from the server.
I created a StudentCardArrayAdapter to achieve this and everything works fine. All the data has been populated in card list. also I able to get the values on button click in each card separately.
What I need is on clicking the button it will call a method requestion server for data asynchronously and get a value from the server and according to that value, i need to change the button text in that particular card.
My StudentCardArrayAdapter code:
public class StudentCardArrayAdapter extends ArrayAdapter<StudentCard> {
private static final String TAG = "CardArrayAdapter";
private List<StudentCard> cardList = new ArrayList<StudentCard>();
private Context mContext;
String selected = "0";
PreferenceHelper prefs;
CardViewHolder viewHolder;
View row;
ProgressDialog pd;
static class CardViewHolder {
TextView studentname;
TextView stop;
Button selectbutton;
CircleImageView imageId;
}
public StudentCardArrayAdapter(Context context, int textViewResourceId) {
super(context, textViewResourceId);
this.mContext = context;
prefs = new PreferenceHelper(this.mContext);
pd = new ProgressDialog(this.mContext);
}
#Override
public void add(StudentCard object) {
cardList.add(object);
super.add(object);
}
#Override
public int getCount() {
return this.cardList.size();
}
#Override
public StudentCard getItem(int index) {
return this.cardList.get(index);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
row = convertView;
if (row == null) {
LayoutInflater inflater = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.student_card, parent, false);
viewHolder = new CardViewHolder();
viewHolder.studentname = (TextView) row.findViewById(R.id.studentname);
viewHolder.stop = (TextView) row.findViewById(R.id.stop);
viewHolder.selectbutton = (Button) row.findViewById(R.id.selectbutton);
viewHolder.imageId = (CircleImageView) row.findViewById(R.id.imageId);
row.setTag(viewHolder);
} else {
viewHolder = (CardViewHolder)row.getTag();
}
StudentCard card = getItem(position);
viewHolder.studentname.setText(card.getStudName());
viewHolder.studentname.setTextColor(Color.parseColor("#000000"));
viewHolder.stop.setText(card.getStudStop());
viewHolder.stop.setTextColor(Color.parseColor("#000000"));
if(card.getSelected().equals("1")){
viewHolder.selectbutton.setText(mContext.getResources().getString(R.string.selected));
viewHolder.selectbutton.setEnabled(false);
}
else{
viewHolder.selectbutton.setText(mContext.getResources().getString(R.string.select));
viewHolder.selectbutton.setEnabled(true);
}
final String studid = card.getStudId();
final String busname = prefs.getString("busname", "0");
final String schoolid = prefs.getString("schoolid", "");
viewHolder.selectbutton.setOnClickListener(new View.OnClickListener()
{
String updatedvalue = "0";
#Override
public void onClick(View v)
{
Log.e("studid",studid);
Log.e("busname",busname);
Log.e("schoolid",schoolid);
selectstudent(v, studid, busname, schoolid,mContext);
//Toast.makeText(v.getContext(), amountinfo, Toast.LENGTH_SHORT).show();
/*SnackbarManager.show(Snackbar.with(this) // context
.text(amountinfo));*/
}
});
Picasso.with(mContext).load(card.getImageUrl()).fit().error(R.mipmap.ic_launcher).into(viewHolder.imageId);
return row;
}
public void selectstudent(final View v, String studid, String busname, String schoolid, final Context mContext) {
String returnedselected = "0";
Log.e("BASE_URL_STUDENT_UPDATE", Constants.BASE_URL_STUDENT_UPDATE + "?studid=" + studid+"&busname="+busname+"&schoolid="+schoolid);
RestClientHelper.getInstance().get(Constants.BASE_URL_STUDENT_UPDATE + "?studid=" + studid+"&busname="+busname+"&schoolid="+schoolid, new RestClientHelper.RestClientListener() {
#Override
public void onSuccess(String response) {
Log.e("RESULT", response);
try {
JSONObject result = new JSONObject(response);
JSONArray posts = result.optJSONArray("status");
for (int i = 0; i < posts.length(); i++) {
JSONObject post = posts.optJSONObject(i);
String status = post.optString("status");
if (status.equals("true")) {
selected = post.optString("selected");
} else {
selected = post.optString("selected");
String error = post.optString("error");
SnackbarManager.show(Snackbar.with(getContext()) // context
.text(error));
}
}
} catch (JSONException e) {
e.printStackTrace();
} catch (Exception e) {
} finally {
if(selected.equals("1")){
viewHolder.selectbutton.setText(mContext.getResources().getString(R.string.selected));
viewHolder.selectbutton.setEnabled(false);
}
}
}
#Override
public void onError(String error) {
Log.e("error", error);
selected = "0";
}
});
}
}
I used the below code but nothing works.. No error also.. and not change in button text.I get value of selected as 1 from server.
if(selected.equals("1")){
viewHolder.selectbutton.setText(mContext.getResources().getString(R.string.selected));
viewHolder.selectbutton.setEnabled(false);
}
I am new to android.. and is stuck here. Please help me out.
FINALLY IT WORKED
As changes mention by Krish, I updated the code suggested by him.
And added this changes in onClick it worked
if(card.getSelected().equals("1")){
viewHolder.selectbutton.setText(mContext.getResources().getString(R.string.selected));
viewHolder.selectbutton.setEnabled(false);
}
Change the code like this,
public void selectstudent(StudentCard card, String studid, String busname, String schoolid, final Context mContext) {
String returnedselected = "0";
Log.e("BASE_URL_STUDENT_UPDATE", Constants.BASE_URL_STUDENT_UPDATE + "?studid=" + studid+"&busname="+busname+"&schoolid="+schoolid);
RestClientHelper.getInstance().get(Constants.BASE_URL_STUDENT_UPDATE + "?studid=" + studid+"&busname="+busname+"&schoolid="+schoolid, new RestClientHelper.RestClientListener() {
#Override
public void onSuccess(String response) {
Log.e("RESULT", response);
try {
JSONObject result = new JSONObject(response);
JSONArray posts = result.optJSONArray("status");
for (int i = 0; i < posts.length(); i++) {
JSONObject post = posts.optJSONObject(i);
String status = post.optString("status");
if (status.equals("true")) {
selected = post.optString("selected");
} else {
selected = post.optString("selected");
String error = post.optString("error");
SnackbarManager.show(Snackbar.with(getContext()) // context
.text(error));
}
}
} catch (JSONException e) {
e.printStackTrace();
} catch (Exception e) {
} finally {
if(selected.equals("1")){
card.setSelected("1");
notifyDataSetChanged();
}
}
}
#Override
public void onError(String error) {
Log.e("error", error);
selected = "0";
}
});
}
and change this line like this ,
final StudentCard card = getItem(position);
and call method inside onclick.
selectstudent(card, studid, busname, schoolid,mContext);
I am trying to obtain some data from Parse.com through an AsyncTaskRunner. ANd then I intend to show them in a ListView. My custom adapter code is attached below :
public class ParseObjectAdapter extends BaseAdapter {
Context mContext;
LayoutInflater mInflater;
List<ParseObject> parseArray;
DBShoppingHelper mydb2;
public ParseObjectAdapter(Context context, LayoutInflater inflater) {
mContext = context;
mInflater = inflater;
parseArray = new ArrayList<>();
}
#Override
public int getCount() {
try {
return parseArray.size();
}
catch (Exception e){
return 0;
}
}
#Override
public ParseObject getItem(int position) { return parseArray.get(position); }
#Override
public long getItemId(int position) {
return position;
}
public String getObjectId(int position){
return getItem(position).getObjectId();
}
public void sortByExpiry()
{
Comparator<ParseObject> comparator = new Comparator<ParseObject>() {
#Override
public int compare(ParseObject lhs, ParseObject rhs) {
return ((Integer) lhs.getInt("expiresIn")).compareTo(rhs.getInt("expiresIn"));
}
};
Collections.sort(parseArray, comparator);
notifyDataSetChanged();
}
#Override
public View getView(final int position, View convertView, final ViewGroup parent) {
ViewHolder holder;
// Inflate the custom row layout from your XML.
convertView = mInflater.inflate(R.layout.list_item, null);
// create a new "Holder" with subviews
holder = new ViewHolder();
holder.itemNameView = (TextView) convertView.findViewById(R.id.item_name);
holder.itemExpiryView = (TextView) convertView.findViewById(R.id.item_expiry);
// Taking care of the buttons
holder.editButton = (Button) convertView.findViewById(R.id.button_edit);
holder.deleteButton = (Button) convertView.findViewById(R.id.button_delete);
holder.shoppingListButton = (Button) convertView.findViewById(R.id.button_shopping);
// hang onto this holder for future recycling
convertView.setTag(holder);
int expiry = getItem(position).getInt("expiresIn");
if (expiry <= 0) {
holder.itemExpiryView.setTextColor(Color.rgb(255,80,54));
}
// Set listener on the buttons
holder.editButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(mContext, "Edit Button CLicked", Toast.LENGTH_SHORT).show();
ParseObject p = getItem(position);
Intent goToAddItem = new Intent(mContext,ItemAddPage.class);
goToAddItem.putExtra("catg_passed", p.getString("category"));
goToAddItem.putExtra("update_flag", "YES");
goToAddItem.putExtra("name passed", p.getString("itemName"));
goToAddItem.putExtra("expires_in_passed", p.getString("expiresIn"));
goToAddItem.putExtra("price_passed", p.getString("itemPrice"));
mContext.startActivity(goToAddItem);
}
});
holder.deleteButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ParseObject p = getItem(position);
String android_id = Settings.Secure.getString(mContext.getContentResolver(), Settings.Secure.ANDROID_ID);
ParseQuery itemToBeDeleted = new ParseQuery("Items");
itemToBeDeleted.whereEqualTo("ACL", p.getACL());
itemToBeDeleted.whereEqualTo("objectId", p.getObjectId());
final Date deletionDate = new Date();
itemToBeDeleted.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> Items, com.parse.ParseException e) {
if (e == null) {
Log.d("score", "Retrieved " + Items.size() + " scores");
if (Items.size() == 1) {
ParseObject itemToDelete = Items.get(0);
itemToDelete.put("deleted", true);
itemToDelete.put("deletedOn", deletionDate);
itemToDelete.saveEventually();
}
} else {
Log.d("score", "Error: " + e.getMessage());
}
}
});
parseArray.remove(p);
sortByExpiry();
notifyDataSetChanged();
Toast.makeText(mContext, "Item deleted", Toast.LENGTH_SHORT).show();
}
});
holder.shoppingListButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v)
{
ParseObject p = getItem(position);
String add_to_list = p.getString("itemName");
SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy");
String add_date = sdf.format(new Date());
System.out.println(add_date);
mydb2.insertItem(add_to_list, add_date);
Toast.makeText(mContext, "Item added to shopping list", Toast.LENGTH_SHORT).show();
}
});
ParseObject p = getItem(position);
String name2 = p.getString("itemName");
Integer ex = p.getInt("expiresIn");
String days_s ="";
if (ex == 0) {
days_s = "Expires today" ;
}
else if (ex == -1) {
days_s = "Expired yesterday";
}
else if (ex < 0) {
days_s = "Expired " + Math.abs(ex) + " days ago";
}
else if (ex == 1) {
days_s = "Expires tomorrow";
}
else {
days_s = "Expires in " + ex + " days";
}
holder.itemNameView.setText(name2);
holder.itemExpiryView.setText(days_s);
return convertView;
}
public void onClick(View v)
{
Intent viewItem = new Intent(v.getContext(), ItemAddPage.class);
v.getContext().startActivity(viewItem);
}
private static class ViewHolder {
public TextView itemNameView;
public TextView itemExpiryView;
public Button editButton;
public Button deleteButton;
public Button shoppingListButton;
}
public void updateData(List<ParseObject> arrayPassed) {
// update the adapter's data set
parseArray = arrayPassed;
notifyDataSetChanged();
}
}
This is the method from which I am calling it..
public class WelcomeParse extends Activity {
ListView currentListView;
List<ParseObject> currentList;
ParseObjectAdapter itemAdder;
String catg;
DBShoppingHelper mydb2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
overridePendingTransition(R.anim.left_in, R.anim.right_out);
setTheme(android.R.style.Theme_Holo_Light_DarkActionBar);
setContentView(R.layout.activity_main);
itemAdder = new ParseObjectAdapter(this, getLayoutInflater());
mydb2 = new DBShoppingHelper(this);
AsyncTaskAllItems runner = new AsyncTaskAllItems();
runner.execute();
// itemAdder.notifyDataSetChanged();
this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
}
public class AsyncTaskAllItems extends AsyncTask<String, String, String> {
private String resp;
private Integer numItems = 0;
#Override
protected String doInBackground(String... params) {
try {
ParseQuery itemsAll = new ParseQuery("Items");
itemsAll.whereEqualTo("owner", ParseUser.getCurrentUser().getUsername());
// itemsByCategory.whereEqualTo("category", catg);
itemsAll.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> Items, ParseException e) {
if (e == null) {
Log.d("score", "Retrieved " + Items.size() + " scores");
Log.d("owner", ParseUser.getCurrentUser().getUsername());
// HERE SIZE is 0 then 'No Data Found!'
numItems = Items.size();
if (numItems > 0) {
currentList = Items;
}
} else {
Log.d("score", "Error: " + e.getMessage());
}
}
});
resp = "Done";
}
// catch (InterruptedException e) {
// e.printStackTrace();
// resp = e.getMessage();
// }
catch (Exception e) {
e.printStackTrace();
resp = e.getMessage();
}
return resp;
}
#Override
protected void onPostExecute(String result) {
currentListView = (ListView) findViewById(R.id.all_list);
itemAdder.updateData(currentList);
if (numItems > 0) {
itemAdder.sortByExpiry();
}
currentListView.setAdapter(itemAdder);
// onWindowFocusChanged(true);
}
#Override
protected void onPreExecute() {
}
#Override
protected void onProgressUpdate(String... text) {
}
}
}
I do not get any error and the log correctly shows the number of items that should be retrieved. But the view does not get updated with the relevant data.
COuld anyone please show me where I am wrong? Anything else you need, just let me know. Much appreciated.
Try after replacing
#Override
protected void onPostExecute(String result) {
currentListView = (ListView) findViewById(R.id.all_list);
itemAdder.updateData(currentList);
if (numItems > 0) {
itemAdder.sortByExpiry();
}
currentListView.setAdapter(itemAdder);
// onWindowFocusChanged(true);
}
With
#Override
protected void onPostExecute(String result) {
currentListView = (ListView) findViewById(R.id.all_list);
currentListView.setAdapter(itemAdder);
itemAdder.updateData(currentList);
if (numItems > 0) {
itemAdder.sortByExpiry();
}
}
I'm developing an Android app but I'm a newbie and I got stuck...
My ListView single element has an ImageView and some TextViews, but sometimes (when I scroll the page and there are more than 7-8 elements) it doesn't display the right image in the right row.
I'm using a custom Image Loader to manage the downloaded images.
Here's my Adapter:
public class AddVideogameActivityAdapter extends BaseAdapter {
private ArrayList<Videogame> videogames;
private Typeface typefaceMedium;
private Typeface typefaceLight;
private ImageLoader loader;
private LayoutInflater mInflater;
public AddVideogameActivityAdapter(Context context, ArrayList<Videogame> results) {
videogames = results;
mInflater = LayoutInflater.from(context);
typefaceMedium = Typeface.createFromAsset(context.getAssets(), "Roboto-Medium.ttf");
typefaceLight = Typeface.createFromAsset(context.getAssets(), "Roboto-Light.ttf");
loader = new ImageLoader(context);
}
public int getCount() {
return videogames.size();
}
public Object getItem(int position) {
return videogames.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.list_element,null);
holder = new ViewHolder();
holder.imgView = (ImageView) convertView.findViewById(R.id.thumbView);
holder.txtName = (TextView) convertView.findViewById(R.id.elementView);
holder.txtPlatform = (TextView) convertView.findViewById(R.id.elementView2);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
try {
Videogame vgame = (Videogame) videogames.get(position);
holder.txtName.setText(vgame.getTitle());
holder.txtName.setTypeface(typefaceMedium);
holder.txtPlatform.setText(videogames.get(position).getPlatform());
holder.txtPlatform.setTypeface(typefaceLight);
holder.imgUrl = videogames.get(position).getImage();
loader.display(holder.imgUrl, holder.imgView, R.drawable.youtube_icon);
}
catch (Exception e) {
e.printStackTrace();
Log.e(com.example.ludos2_0.MainActivity.TAG,
"Exception: " + e.getLocalizedMessage());
}
return convertView;
}
static class ViewHolder {
TextView txtName;
TextView txtPlatform;
public String imgUrl;
ImageView imgView;
}
}
Sorry for my english and thank you for your help!
EDIT:
Here's also the Loader:
public class ImageLoader implements ComponentCallbacks2 {
private TCLruCache cache;
public ImageLoader(Context context) {
ActivityManager am = (ActivityManager) context.getSystemService(
Context.ACTIVITY_SERVICE);
int memoryClass = am.getMemoryClass() * 1024 * 1024;
cache = new TCLruCache(memoryClass);
}
public void display(String url, ImageView imageview, int defaultresource) {
imageview.setImageResource(defaultresource);
Bitmap image = cache.get(url);
if (image != null) {
imageview.setImageBitmap(image);
}
else {
new SetImageTask(imageview).execute(url);
}
}
private class TCLruCache extends LruCache<String, Bitmap> {
public TCLruCache(int maxSize) {
super(maxSize);
}
}
private class SetImageTask extends AsyncTask<String, Void, Integer> {
private ImageView imageview;
private Bitmap bmp;
public SetImageTask(ImageView imageview) {
this.imageview = imageview;
}
#Override
protected Integer doInBackground(String... params) {
String url = params[0];
try {
bmp = getBitmapFromURL(url);
if (bmp != null) {
cache.put(url, bmp);
}
else {
return 0;
}
} catch (Exception e) {
e.printStackTrace();
return 0;
}
return 1;
}
#Override
protected void onPostExecute(Integer result) {
if (result == 1) {
imageview.setImageBitmap(bmp);
}
super.onPostExecute(result);
}
private Bitmap getBitmapFromURL(String src) {
try {
URL url = new URL(src);
HttpURLConnection connection
= (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
return myBitmap;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
}
}
RE-EDIT
Activity code:
public class AddVideogameActivity extends ListActivity {
private TextView searchField = null;
private final Handler handler = new Handler();
private ArrayList<Videogame> videogamesList = null;
private static AddVideogameActivity mContext = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_book);
mContext = this;
searchField = (TextView) findViewById(R.id.searchField);
searchField.setMaxLines(1);
searchField.setOnFocusChangeListener(new OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
searchField.setHint("");
}
});
// Setup the list view and its listener
getListView().setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Log.d(MainActivity.TAG,
"AddBookActivity ---> AddButton:onClick()");
// Sets typefaces for TextView
String videogameId = videogamesList.get(position).getId();
String videogameName = videogamesList.get(position).getTitle();
String thumbnail = videogamesList.get(position).getThumbnail();
String description = videogamesList.get(position)
.getDescription();
String image = videogamesList.get(position).getImage();
String platform = videogamesList.get(position).getPlatform();
if (videogameName != null && videogameName.length() > 0
&& thumbnail != null && thumbnail.length() > 0
&& description != null && description.length() > 0
&& image != null && image.length() > 0
&& platform != null && platform.length() > 0) {
if (ListsManager.getInstance().addVideogame(
new Videogame(videogameId, videogameName,
thumbnail, image, description, platform)) == 0) {
Log.d(MainActivity.TAG,
"AddBookActivity --> Videogame:[" + videogameId
+ "#" + videogameName + "]");
Toast toast = Toast.makeText(mContext, "["
+ videogameName + "] Saved !",
Toast.LENGTH_LONG);
toast.show();
} else {
Log.e(MainActivity.TAG,
"AddBookActivity --> Error ! Videogame already in the list ! ");
Toast toast = Toast.makeText(mContext,
"Error! Videogame already in the list!",
Toast.LENGTH_LONG);
toast.show();
}
} else {
Log.e(MainActivity.TAG,
"AddBookActivity --> Error ! Invalid Videogame Name or Thumbnail or Id or Deck");
Toast toast = Toast
.makeText(
mContext,
"Error ! Invalid Videogame Name or Thumbnail or Id or Deck",
Toast.LENGTH_LONG);
toast.show();
}
Intent newIntent = new Intent(getApplicationContext(),
MainActivity.class);
startActivity(newIntent);
}
});
// Setup the search button and its listener
Button searchButton = (Button) findViewById(R.id.searchButton);
searchButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Log.d(com.example.ludos2_0.MainActivity.TAG, "Search Game ...");
String searchInputString = searchField.getText().toString();
if (searchInputString != null && searchInputString.length() > 0) {
try {
String requestURL = ("http://www.giantbomb.com/api/search/?api_key=fcf60d6d67b98b0d17b3905d1a90b3fd31ed1e8e&format=json&query="
+ Uri.encode(searchInputString) + "&resources=game");
// String requestURL =
// String.format("https://gdata.youtube.com/feeds/api/videos?v=2&alt=jsonc&category=Music&orderby=relevance&q=%s",Uri.encode(searchInputString));
Log.d(com.example.ludos2_0.MainActivity.TAG, requestURL);
DownloadGiantBombJSONData giantbombAsyncTask = new DownloadGiantBombJSONData();
giantbombAsyncTask.execute(new String[] { requestURL });
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
if (videogamesList == null)
videogamesList = new ArrayList<Videogame>();
else
updateVideogamesListView(videogamesList);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.add_book, menu);
return true;
}
#Override
protected void onResume() {
super.onResume();
}
#Override
protected void onPause() {
super.onPause();
}
public void updateVideogamesListView(ArrayList<Videogame> values) {
AddVideogameActivityAdapter adapter = new AddVideogameActivityAdapter(this, values);
setListAdapter(adapter);
}
#Override
protected void onDestroy() {
super.onDestroy();
}
}
The other classes involved in building the ListView are the REST classes and the AsyncTask class that downloads and parses the JSon files.
What does your ListView look like, does it look like this:
<ListView android:id="#id/android:list"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dip" ></ListView>
Especially the id of the ListView. Check your layout file, probably the bug exists there.