problem accessing run() in android

problem accessing run() in android - android

Hi i have a problem accessing run() method in my program. The rum method is not getting focus at all. The Log message that is present outside the loop is getting displayed and i am getting a blank screen with preset background.Here's the code...
public class MusicListActivity extends Activity {
List<HashMap<String, String>> songNodeDet = new ArrayList<HashMap<String,String>>();
HashMap<?,?>[] songNodeWeb;
XMLRPCClient client;
String logInSess;
ArrayList<String> paths=new ArrayList<String>();
public ListAdapter adapter ;
Object[] websongListObject;
List<SongsList> SongsList=new ArrayList<SongsList>();
Runnable r;
ProgressDialog p;
ListView lv;
#Override
public void onCreate(Bundle si){
super.onCreate(si);
setContentView(R.layout.openadiuofile);
lv=(ListView)findViewById(R.id.list1);
r=new Runnable(){
public void run(){
try{
getSongs();
list();
Log.d("handler","handler");
removeDialog(0);
p.dismiss();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (XMLRPCException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
Log.e("***","process over");
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
}
public void webObjectList(Object[] songListObj) throws XMLRPCException{
songNodeWeb = new HashMap<?,?>[songListObj.length];
for(int i=0;i<songListObj.length;i++){
songNodeWeb[i]=(HashMap<?,?>)songListObj[i];
String nodeid=(String) songNodeWeb[i].get("nid");
Log.e("Song",i+"completed");
HashMap<String,String> nData=new HashMap<String,String>();
nData.put("nid",nodeid);
Object nodeget=client.call("node.get",nodeid);
HashMap<?,?> songNode=(HashMap<?,?>)nodeget;
String title=(String) songNode.get("title");
String album=(String) songNode.get("album");
String artist=(String) songNode.get("artist");
nData.put("title", title);
nData.put("album", album);
nData.put("artist", artist);
Object[] songObject=(Object[])songNode.get("title_format");
HashMap<?,?>[] songDetails=new HashMap<?,?>[songObject.length];
songDetails[0]=(HashMap<?, ?>)songObject[0];
String path=(String) songDetails[0].get("filepath");
if(path.contains(" ")){
path=path.replace(" ", "%20");
}
String songPath="http://www.gorinka.com/"+path;
paths.add(songPath);
nData.put("path", songPath);
Log.e("my path",path);
SongsList songsList=new SongsList(title, album, artist,songPath,songPath);
SongsList.add(i,songsList);
songNodeDet.add(i,nData);
}
Log.e("paths values",paths.toString());
handler.sendEmptyMessage(0);
}
public void list()
{ Log.d("#####","#####");
LayoutInflater inflater=getLayoutInflater();
String[] from={};
int[] n={};
adapter=new SongsAdapter(getApplicationContext(),songNodeDet,R.layout.row,from,n,inflater);
lv.setAdapter(adapter);
}
public void getSongs() throws MalformedURLException, XMLRPCException
{
String ur="http://www.gorinka.com/";
URL u=new URL(ur);
client = new XMLRPCClient(u);
websongListObject =(Object[]) client.call("nodetype.get","titles");
webObjectList(websongListObject);
Log.d("webObjectList","webObjectList");
runOnUiThread(r);
}
private Handler handler = new Handler() {
public void handleMessage(Message msg){
Log.d("handler","handler");
removeDialog(0);
p.dismiss();
}
};
}
I m trying to access the strings through simple adapter... Here's the code for adapter...
public class SongsAdapter extends SimpleAdapter{
static List<HashMap<String,String>> songsList;
Context context;
LayoutInflater inflater;
public SongsAdapter(Context context,List<HashMap<String,String>> imgListWeb,int layout,String[] from,int[] to,LayoutInflater inflater) {
super(context,songsList,layout,from,to);
this.songsList=songsList;
this.context=context;
this.inflater=inflater;
// TODO Auto-generated constructor stub
}
#Override
public View getView(int postition,View convertView,ViewGroup parent)throws java.lang.OutOfMemoryError{
try {
View v = ((LayoutInflater) inflater).inflate(R.layout.row,null);
ImageView images=(ImageView)v.findViewById(R.id.image);
TextView tvTitle=(TextView)v.findViewById(R.id.text1);
TextView tvAlbum=(TextView)v.findViewById(R.id.text2);
TextView tvArtist=(TextView)v.findViewById(R.id.text3);
HashMap<String,String> songsHash=songsList.get(postition);
String path=songsHash.get("path");
String title=songsHash.get("title");
String album=songsHash.get("album");
String artist=songsHash.get("artist");
String imgPath=path;
final ImageView imageView = (ImageView) v.findViewById(R.id.image);
AsyncImageLoaderv asyncImageLoader=new AsyncImageLoaderv();
Bitmap cachedImage = asyncImageLoader.loadDrawable(imgPath, new AsyncImageLoaderv.ImageCallback() {
public void imageLoaded(Bitmap imageDrawable, String imageUrl) {
imageView.setImageBitmap(imageDrawable);
}
});
imageView.setImageBitmap(cachedImage);
tvTitle.setText(title);
tvAlbum.setText(album);
tvArtist.setText(artist);
return v;
}
catch(Exception e){
Log.e("error",e.toString());
}
return null;
}
public static Bitmap loadImageFromUrl(String url) {
InputStream inputStream;Bitmap b;
try {
inputStream = (InputStream) new URL(url).getContent();
BitmapFactory.Options bpo= new BitmapFactory.Options();
bpo.inSampleSize=2;
b=BitmapFactory.decodeStream(inputStream, null,bpo );
return b;
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
Plz help me determinre the problem and solution for my problem... Need it badly...

First of all, I would recommend you using AsyncTask.
The mistake here is that you are creating a Runnable but not passing it to a new Thread()
You are missing something like this:
Thread heavyLoader = new Thread(r);
heavyLoader.start();

Related

sorting a ListView by number

sort ListView Android by float number ...
I have a listview price type float display of a mysql database ,,
I want to sort it (by order) but I have not found a solution ..
how can I do it please !!!
it's the code of my listView with prices done !!
private class GetHttpResponse extends AsyncTask<Void, Void, Void>{
public Context context;
String ResultHolder;
List<subjects> subjectsList;
public GetHttpResponse(Context context)
{
this.context = context;
}
#Override
protected void onPreExecute()
{
super.onPreExecute();
}
#Override
protected Void doInBackground(Void... arg0)
{
HttpServicesClass httpServiceObject = new
HttpServicesClass(ServerURL);
try
{
httpServiceObject.ExecutePostRequest();
if(httpServiceObject.getResponseCode() == 200)
{
ResultHolder = httpServiceObject.getResponse();
if(ResultHolder != null)
{
JSONArray jsonArray = null;
try {
jsonArray = new JSONArray(ResultHolder);
JSONObject jsonObject;
subjects subjects;
subjectsList = new ArrayList<subjects>();
for(int i=0; i<jsonArray.length(); i++)
{ subjects = new subjects();
jsonObject = jsonArray.getJSONObject(i);
subjects.SubjectName = jsonObject.getString("tarif");
subjectsList.add(subjects);
} }
catch (JSONException e) {
e.printStackTrace();
} } } else
{
Toast.makeText(context, httpServiceObject.getErrorMessage(),
Toast.LENGTH_SHORT).show();
}
}
catch (Exception e)
{
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void result)
{ progressBarSubject.setVisibility(View.GONE);
SubjectListView.setVisibility(View.VISIBLE);
if(subjectsList != null)
{
ListAdapterClass adapter = new ListAdapterClass(subjectsList,
context);
SubjectListView.setAdapter(adapter);
SubjectListView.setOnItemClickListener(new
AdapterView.OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> parent, View view,
int pos, long id) {
String selectedItem =
parent.getItemAtPosition(pos).toString();
Toast.makeText(TechnicienActivity.this,selectedItem,
Toast.LENGTH_SHORT).show();
Intent intent = new
Intent(getApplicationContext(),Main2Activity.class);
intent.putExtra("Position" , String.valueOf(id));
startActivity(intent);
} }); } } }

You can sort the list by using
Collections.sort(list);
and then set this to the listview.
Example;
subjectsList.add(subjects);
Collections.sort(subjectsList);

I used PagerAdapter for sliding images its not notifying properly

I used PagerAdapter for sliding images and i added a favorite button too in that sliding image. After clicking favorite button its not getting notified properly image not turns to unfavorite icon.
it is for loading api
private class PremiumProjectLoad extends AsyncTask<String, Void, JSONObject> {
JSONParser jsonParser = new JSONParser();
String url= ApiLinks.PremiumProject;
ProgressHUD mProgressHUD;
protected void onPreExecute(){
mProgressHUD = ProgressHUD.show(getActivity(),null, true);
super.onPreExecute();
}
protected JSONObject doInBackground(String... arg0) {
HashMap<String,String> params=new HashMap<>();
try {
params.put("languageID",CommonStrings.languageID);
params.put("cityID",CommonStrings.cityID);
if(session.isLoggedIn()){
params.put("userID",UserLogin.get(SessionManager.KEY_CUSTOMER_ID));
}
JSONObject json = jsonParser.SendHttpPosts(url,"POST",params);
if (json != null) {
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(JSONObject json) {
if(json!=null) {
String Status=json.optString("status");
String Message=json.optString("message");
CommonImagePath=json.optString("imagepath");
PremiumDataArray.clear();
if(Status.equals("ok")){
JSONArray DataArray=json.optJSONArray("data");
if(DataArray!=null && DataArray.length()>0) {
for (int i = 0; i < DataArray.length(); i++) {
JSONObject DataObj = DataArray.optJSONObject(i);
String projectID = DataObj.optString("projectID");
String projectName = DataObj.optString("projectName");
String propertyUnitPriceRange = DataObj.optString("propertyUnitPriceRange");
String projectOfMonthImage = DataObj.optString("projectOfMonthImage");
String propertyUnitBedRooms = DataObj.optString("propertyUnitBedRooms");
String projectBuilderName = DataObj.optString("projectBuilderName");
String propertyTypeName = DataObj.optString("propertyTypeName");
String purpose = DataObj.optString("purpose");
String projectBuilderAddress = DataObj.optString("projectBuilderAddress");
String projectFavourite = DataObj.optString("projectFavourite");
PremiumData premiumData = new PremiumData();
premiumData.setProjectID(projectID);
premiumData.setProjectName(projectName);
premiumData.setPropertyUnitPriceRange(propertyUnitPriceRange);
premiumData.setProjectOfMonthImage(projectOfMonthImage);
premiumData.setPropertyUnitBedRooms(propertyUnitBedRooms);
premiumData.setProjectBuilderName(projectBuilderName);
premiumData.setPropertyTypeName(propertyTypeName);
premiumData.setPurpose(purpose);
premiumData.setProjectBuilderAddress(projectBuilderAddress);
premiumData.setProjectFavourite(projectFavourite);
PremiumDataArray.add(premiumData);
}
LoopViewPager viewpager = (LoopViewPager) homeView.findViewById(R.id.viewpager);
CircleIndicator indicator = (CircleIndicator) homeView.findViewById(R.id.indicator);
// if(pagerAdapter==null)
pagerAdapter = new PremiumProjectAdapter(getActivity(), PremiumDataArray);
viewpager.setAdapter(pagerAdapter);
indicator.setViewPager(viewpager);
// pagerAdapter.notifyDataSetChanged();
}
}
else {
Toast.makeText(getActivity(),Message, Toast.LENGTH_LONG).show();
}
}
mProgressHUD.dismiss();
}
}
pager adapter
public class PremiumProjectAdapter extends PagerAdapter {
private final Random random = new Random();
private ArrayList<PremiumData> mSize;
Context mContext;
LayoutInflater mLayoutInflater;
String ProjectID;
String path=CommonImagePath+"/uploads/projectOfMonth/orginal/";
// public PremiumProjectAdapter() {
// }
public PremiumProjectAdapter(Context contexts, ArrayList<PremiumData> count) {
mSize = count;
mContext=contexts;
}
#Override public int getCount() {
return mSize.size();
}
#Override public boolean isViewFromObject(View view, Object object) {
return view == object;
}
#Override public void destroyItem(ViewGroup view, int position, Object object) {
view.removeView((View) object);
}
#Override public Object instantiateItem(ViewGroup view, final int position) {
mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = mLayoutInflater.inflate(R.layout.home_premium_layout, view, false);
ImageView imageView = (ImageView) itemView.findViewById(R.id.premium_ProImage);
TextView ProjectName = (TextView) itemView.findViewById(R.id.premium_ProName);
TextView ProjectUnitPrice = (TextView) itemView.findViewById(R.id.premium_UnitPrice);
TextView ProjectUnitBedroom = (TextView) itemView.findViewById(R.id.premium_UnitBedrooms);
TextView ProjectAddress = (TextView) itemView.findViewById(R.id.premium_ProAddress);
ImageView unshortlisted = (ImageView) itemView.findViewById(R.id.unshortlisted);
ImageView shortlisted = (ImageView) itemView.findViewById(R.id.shortlisted);
final PremiumData data = mSize.get(position);
if (data.getProjectFavourite() != null) {
if (data.getProjectFavourite().equals("ShortListed")) {
shortlisted.setVisibility(View.VISIBLE);
unshortlisted.setVisibility(View.GONE);
} else {
shortlisted.setVisibility(View.GONE);
unshortlisted.setVisibility(View.VISIBLE);
}
}
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N){
ProjectUnitPrice.setText(Html.fromHtml(data.getPropertyUnitPriceRange(), Html.FROM_HTML_MODE_COMPACT));
}else{
ProjectUnitPrice.setText(Html.fromHtml(data.getPropertyUnitPriceRange()));
}
ImageLoader.getInstance().displayImage(path+data.getProjectOfMonthImage(), imageView);
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
if(!data.getProjectName().equals("null") && data.getProjectName().length()>30){
String s = data.getProjectName().substring(0, 25);
String subString = s + "...";
ProjectName.setText(subString);
}
else{
ProjectName.setText(data.getProjectName());
}
ProjectUnitBedroom.setText(data.getPropertyUnitBedRooms());
ProjectAddress.setText(data.getProjectBuilderAddress());
imageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent DetailsAction=new Intent(mContext, DetailsActivity.class);
DetailsAction.putExtra("projectID",data.getProjectID());
DetailsAction.putExtra("purpose",data.getPurpose());
mContext.startActivity(DetailsAction);
}
});
unshortlisted.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!session.isLoggedIn()){
Intent toLogin=new Intent(mContext, LoginActivity.class);
CommonStrings.FromSearchIndex="true";
mContext.startActivity(toLogin);
}else{
ProjectID=data.getProjectID();
new ShortlistProject().execute();
}
}
});
shortlisted.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ProjectID=data.getProjectID();
new UnShortlistProject().execute();
}
});
view.addView(itemView);
return itemView;
}
private class ShortlistProject extends AsyncTask<String, Void, JSONObject> {
JSONParser jsonParser = new JSONParser();
String url=ApiLinks.AddShortListProject;
ProgressHUD mProgressHUD;
protected void onPreExecute(){
mProgressHUD = ProgressHUD.show(mContext,null, true);
super.onPreExecute();
}
protected JSONObject doInBackground(String... arg0) {
HashMap<String,String> params=new HashMap<>();
try {
params.put("languageID",CommonStrings.languageID);
params.put("userID",User.get(SessionManager.KEY_CUSTOMER_ID));
params.put("projectID",ProjectID);
params.put("userType",User.get(SessionManager.KEY_USERTYPE_ID));
JSONObject json = jsonParser.SendHttpPosts(url,"POST",params);
if (json != null) {
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(JSONObject json) {
if(json!=null) {
String status=json.optString("status");
String message=json.optString("message");
if(status.equals("ok")){
Toast.makeText(mContext,message,Toast.LENGTH_LONG).show();
//SearchFragment.getInstance().onResume();
HomeFragment.getInstance().async_premium();
}else{
Toast.makeText(mContext,message,Toast.LENGTH_LONG).show();
}
}
mProgressHUD.dismiss();
}
}
private class UnShortlistProject extends AsyncTask<String, Void, JSONObject> {
JSONParser jsonParser = new JSONParser();
String url=ApiLinks.RemoveShortListProject;
ProgressHUD mProgressHUD;
protected void onPreExecute(){
mProgressHUD = ProgressHUD.show(mContext,null, true);
super.onPreExecute();
}
protected JSONObject doInBackground(String... arg0) {
HashMap<String,String> params=new HashMap<>();
try {
params.put("userID",User.get(SessionManager.KEY_CUSTOMER_ID));
params.put("projectID",ProjectID);
params.put("userType",User.get(SessionManager.KEY_USERTYPE_ID));
JSONObject json = jsonParser.SendHttpPosts(url,"POST",params);
if (json != null) {
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(JSONObject json) {
if(json!=null) {
String status=json.optString("status");
String message=json.optString("message");
if(status.equals("ok")){
Toast.makeText(mContext,message,Toast.LENGTH_LONG).show();
// HomeFragment.getInstance().async_Premium();
HomeFragment.getInstance().async_premium();
}else{
Toast.makeText(mContext,message,Toast.LENGTH_LONG).show();
}
}
mProgressHUD.dismiss();
}
}

As far as i am able to understand your question you want favorite and unfavorite functionality by adapter . Please use this code below to achieve that :
public class CustomGridAdapterFoodDrink extends BaseAdapter {
private Context mContext;
private ProgressDialog loading;
ArrayList<FoodDrink> foodDrinkArrayList = new ArrayList<>();
SharedPreferences pref;
String userId;
String like_dislike_value = "Like";
String likeValueStr = "1";
boolean like = true;
int positionVal = 444;
HashMap<Integer,Boolean> state = new HashMap<>();
public CustomGridAdapterFoodDrink(Context c, ArrayList<FoodDrink> foodDrinkArrayList) {
mContext = c;
this.foodDrinkArrayList = foodDrinkArrayList;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return foodDrinkArrayList.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View grid;
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
grid = new View(mContext);
grid = inflater.inflate(R.layout.grid_single, null);
TextView projectNamtTxtView = (TextView) grid.findViewById(R.id.projectName);
TextView totalOfferText = (TextView) grid.findViewById(R.id.TotalOffers);
ImageView merchantImage = (ImageView) grid.findViewById(R.id.merchantImage);
final ImageView like_dislike_icon = (ImageView) grid.findViewById(R.id.like_dislike_icon);
totalOfferText.setText(foodDrinkArrayList.get(position).getOffers());
projectNamtTxtView.setText(foodDrinkArrayList.get(position).getProject_name());
Glide.with(mContext)
.load(foodDrinkArrayList.get(position).getProject_photo())
.centerCrop()
.placeholder(R.drawable.review_pro_pic1)
.crossFade()
.into(merchantImage);
like_dislike_icon.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
pref = getApplicationContext().getSharedPreferences("MyPref", MODE_PRIVATE);
userId = pref.getString("userId", null);
/* if(state.size()> 0){
like = state.get(position);*/
if (!like) {
like = true;
/* state.put(position,like);*/
like_dislike_icon.setImageResource(R.mipmap.like_it_act);
likeDislike2(foodDrinkArrayList.get(position).getID(), "1");
} else {
like = false;
/* state.put(position,like);*/
like_dislike_icon.setImageResource(R.mipmap.like_it);
likeDislike2(foodDrinkArrayList.get(position).getID(), "0");
}
/* } else {
like = true;
state.put(position,like);
like_dislike_icon.setImageResource(R.mipmap.like_it_act);
likeDislike2(foodDrinkArrayList.get(position).getID(), "1");
}*/
// if(positionVal !=position) {
// likeValueStr ="1";
// positionVal = position;
// likeDislike(foodDrinkArrayList.get(position).getID(), likeValueStr, like_dislike_icon);
// }
// else {
// likeValueStr ="0";
// likeDislike(foodDrinkArrayList.get(position).getID(), likeValueStr, like_dislike_icon);
// }
}
});
} else {
grid = (View) convertView;
}
return grid;
}
private void likeDislike(String merchantId, final String like_dislike, final ImageView imageView) {
loading = ProgressDialog.show(mContext, "Loading ", "Please wait...", true, true);
AsyncHttpClient client = new AsyncHttpClient();
String url = getlikeUrl(userId, merchantId, like_dislike);
client.setMaxRetriesAndTimeout(5, 20000);
client.post(url, new AsyncHttpResponseHandler() {
#Override
public void onSuccess(String responseString) {
try {
JSONObject _object = new JSONObject(responseString);
String status = _object.getString("success");
String msg = _object.getString("response");
if ("true".equalsIgnoreCase(status)) {
Toast.makeText(mContext, msg, Toast.LENGTH_LONG).show();
if (msg.equalsIgnoreCase("Like")) {
imageView.setImageResource(R.mipmap.like_it_act);
} else {
imageView.setImageResource(R.mipmap.like_it);
}
} else {
Toast.makeText(mContext, msg, Toast.LENGTH_LONG).show();
}
loading.dismiss();
// AppUtility.showToast(SignUp.this, message);
} catch (JSONException e) {
e.printStackTrace();
new Global().saveReport("abc", e.getStackTrace(), e.toString());
}
loading.dismiss();
}
#Override
public void onFailure(int statusCode, Throwable error, String content) {
}
});
}
private String getlikeUrl(String userId, String merchantId, String like_dislike) {
String url = "";
try {
url = NetworkURL.URL
+ "likeMerchant"
+ "?user_id=" + URLEncoder.encode(new Global().checkNull(userId), "UTF-8")
+ "&merchant_id=" + URLEncoder.encode(new Global().checkNull(merchantId), "UTF-8")
+ "&like_dislike=" + URLEncoder.encode(new Global().checkNull(like_dislike), "UTF-8")
;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
new Global().saveReport("abc", e.getStackTrace(), e.toString());
}
return url;
}
private void likeDislike2(String merchantId, final String like_dislike) {
loading = ProgressDialog.show(mContext, "Loading ", "Please wait...", true, true);
AsyncHttpClient client = new AsyncHttpClient();
String url = getlikeUrl(userId, merchantId, like_dislike);
client.setMaxRetriesAndTimeout(5, 20000);
client.post(url, new AsyncHttpResponseHandler() {
#Override
public void onSuccess(String responseString) {
try {
JSONObject _object = new JSONObject(responseString);
String status = _object.getString("success");
String msg = _object.getString("response");
if ("true".equalsIgnoreCase(status)) {
Toast.makeText(mContext, msg, Toast.LENGTH_LONG).show();
} else {
Toast.makeText(mContext, msg, Toast.LENGTH_LONG).show();
}
loading.dismiss();
// AppUtility.showToast(SignUp.this, message);
} catch (JSONException e) {
e.printStackTrace();
new Global().saveReport("abc", e.getStackTrace(), e.toString());
}
loading.dismiss();
}
#Override
public void onFailure(int statusCode, Throwable error, String content) {
}
});
}
}

My questions is, how do I pass the list data i have obtained from JSON in a fragment to an activity?

This is my Fragment Class - Here i get the JSON array object and call the adapter class for setting it. In the corressponding XML file, i have used a card view and lsit view to display the data. i want to know how to implement a onItemClickListener{} function so that i can go to another activity and display the list in a more detailed manner.
{
String url = "http://www.appplay.in/student_project/public/staff_details";
ProgressDialog mProgressDialog;
ListView lvDetail;
Context context;
ArrayList<staff_model> myList = new ArrayList<>();
ListView lv;
public static ArrayList<staff_model> staff_array;
JSONObject jsonObject;
JSONObject jsonKey;
Button submit;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, final Bundle savedInstanceState) {
context=container.getContext();
View v = inflater.inflate(R.layout.tab_fragment_2, container, false);
lvDetail = (ListView) v.findViewById(R.id.CustomList);
// submit=(Button)v.findViewById(R.id.button) ;
new GetGalleryimage().execute();
v.setOnClickListener(new View.OnClickListener() {
#Override public void onClick(View v) {
Intent in = new Intent(getActivity(), Staff_Main.class);
startActivity(in);
}
});
return v;
}
public void positionAction(View view) {
int position = (int) view.getTag();
Toast.makeText(view.getContext(),Integer.toString(position),Toast.LENGTH_SHORT).show();
}
private class GetGalleryimage extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
mProgressDialog = new ProgressDialog(getActivity());
mProgressDialog.setMessage("Please wait...");
mProgressDialog.setCancelable(false);
mProgressDialog.show();
}
#Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
JSONArray jsonarr = jsonObj.getJSONArray("User_Details");
for(int i=0; i<jsonarr.length(); i++)
{
JSONObject jsonObject = jsonarr.getJSONObject(i);
myList.add(new staff_model(jsonObject.getString("name"),jsonObject.getString("dob"),jsonObject.getString("occupation"),jsonObject.getString("emailid"),jsonObject.getString("contact"),jsonObject.getString("timetable"),jsonObject.getString("image")));
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
Log.v("result",""+result);
if (mProgressDialog.isShowing())
mProgressDialog.dismiss();
staff_BaseAdapter rcAdapter = new staff_BaseAdapter(getActivity(),0, myList);
lvDetail.setAdapter(rcAdapter);
}
}
public class MAP_Detailservice extends
AsyncTask<String, String, String> {
Context mContext;
JSONObject mJsnObj;
ProgressDialog mProgressDialog;
#Override
protected void onPreExecute() {
showProgress();
super.onPreExecute();
}
#Override
protected String doInBackground(String... strings) {
JSONObject json = new JSONObject();
String cricketAllMatchesLink = "http://www.appplay.in/student_project/public/staff_details";
try {
return String.valueOf(HttpUtils.getJson(cricketAllMatchesLink));
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String result) {
Log.v("POST EXECUTE", "RESULT :" + result);
super.onPostExecute(result);
hideProgress();
// mProgressDialog.dismiss();
// if (HttpUtils.status == 408) {
// Toast.makeText(getActivity(), "Conection Lost ",
// Toast.LENGTH_SHORT).show();
// }
try {
JSONArray array = new JSONArray(result);
JSONObject mJsonObject = array.getJSONObject(0);
// ArrayList<user_agent> GetSearchResults();
ArrayList<staff_model> staff_result = new ArrayList<staff_model>();
/**
* Question Array Parsing
*/
JSONArray jsonQuesstionsArray = mJsonObject
.getJSONArray("User_Details");
for (int i = 0; i < jsonQuesstionsArray.length(); i++) {
// Reading questions
JSONObject jsonQuestionObject = jsonQuesstionsArray
.getJSONObject(i);
String name = jsonQuestionObject.getString("name");
String dob = jsonQuestionObject.getString("dob");
String occupation = jsonQuestionObject.getString("occupation");
String emailid = jsonQuestionObject.getString("emailid");
String contact = jsonQuestionObject.getString("contact");
String timetable = jsonQuestionObject.getString("timetable");
String image = jsonQuestionObject.getString("image");
}
lvDetail.setAdapter(new staff_BaseAdapter(
getActivity(), 0,staff_result));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public void showProgress() {
mProgressDialog = new ProgressDialog(getActivity());
mProgressDialog.setMessage("Loading please wait");
mProgressDialog.setCancelable(false);
mProgressDialog.show();
}
public void hideProgress() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
#Override
public void onDestroy(){
super.onDestroy();
if ( mProgressDialog!=null && mProgressDialog.isShowing() ){
mProgressDialog.cancel();
}
}
}
This is my Adapter class - Where I have gotten the data and set the code
ArrayList<StaffList> myList = new ArrayList<StaffList>();
LayoutInflater inflater;
Context context;
public StaffBaseAdapter(Context context, ArrayList<StaffList> myList) {
this.myList = myList;
this.context = context;
inflater = LayoutInflater.from(this.context);
}
#Override
public int getCount() {
return myList.size();
}
#Override
public StaffList getItem(int position) {
return myList.get(position);
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
MyViewHolder mViewHolder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.staff_list_view, parent, false);
mViewHolder = new MyViewHolder(convertView);
convertView.setTag(mViewHolder);
} else {
mViewHolder = (MyViewHolder) convertView.getTag();
}
StaffList currentListData = getItem(position);
mViewHolder.tvTitle.setText(currentListData.getTitle());
return convertView;
}
private class MyViewHolder {
TextView tvTitle, tvDesc;
ImageView ivIcon;
public MyViewHolder(View item) {
tvTitle = (TextView) item.findViewById(R.id.tvTitle);
}
}
}
This is my Model Class
String title;
int imgResId;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public int getImgResId() {
return imgResId;
}
public void setImgResId(int imgResId) {
this.imgResId = imgResId;
}
}

first your model class "staff_model" implement parcelable it will help to transfer your single model item pass to other activity.
Then add ItemClickListener in your listview

add this into your getView function
MyViewHolder rowHolder=new MyViewHolder(convertView);
rowHolder.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//do whatever u want
}
});

listView.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//Here you can convert your json to string
startActivity(new Intent(this, MainActivity.class).putExtra("myList",new Gson().toJson(list)));
}
});
and in your receiving activity
Type type = new TypeToken<List<String>>() {
}.getType();
List<String> list1=new Gson().fromJson(getIntent().getStringExtra("myList"),type);
Here Specify the TypeToken .You will have the exact json that you passed in the intent.

The image order go wrong after downloaded with bitmap in android

i wish to display my data and image which download from an URL but after i download the image from URL, the order of the image go wrong. I displayed my data and images using card view and recycle view, but the first image in first card go to second, while the second image at third card and the third one will missing and the first one will empty. Anyone can help me on this?
Below is my code. Tq
SimpleCardViewAdapter.java
public class SimpleCardViewAdapter extends RecyclerView.Adapter<SimpleCardViewAdapter.ViewHolder> {
private List<CardViewData> mDataset;
Bitmap downloadedBitmap;
ImageView row_image;
public SimpleCardViewAdapter(List<CardViewData> dataset) {
mDataset = dataset;
}
#Override
public ViewHolder onCreateViewHolder(final ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.row_layout, viewGroup, false);
return new ViewHolder(v);
}
#Override
public void onBindViewHolder(final ViewHolder viewHolder, int i) {
final CardViewData cardViewData = mDataset.get(i);
viewHolder.mTitle.setText(cardViewData.getTitle());
viewHolder.mDescription.setText(cardViewData.getDescription());
String var = cardViewData.getImage();
new Thread(new getImageTask(var)).start();
viewHolder.mImage.setImageBitmap(downloadedBitmap);
viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(v.getContext(), "Title: " + cardViewData.getTitle(), Toast.LENGTH_SHORT).show();
}
});
}
class getImageTask implements Runnable {
String imageUrl;
getImageTask(String imgUrl){
imageUrl = imgUrl;
}
#Override
public void run() {
try {
URL url = new URL(imageUrl);
downloadedBitmap = BitmapFactory.decodeStream(url.openConnection().getInputStream());
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Message msg = new Message();
Bundle b = new Bundle();
b.putString("mfeApi", "1");
msg.setData(b);
handlerGroupedProductsImage.sendMessage(msg);
}
}
Handler handlerGroupedProductsImage = new Handler() {
public void handleMessage(Message msg) {
Bundle b = msg.getData();
String done = b.getString("mfeApi");
};
};
#Override
public int getItemCount() {
return mDataset == null ? 0 : mDataset.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView mTitle;
public TextView mDescription;
public ImageView mImage;
public ViewHolder(View itemView) {
super(itemView);
mTitle = (TextView) itemView.findViewById(R.id.row_title);
mDescription = (TextView) itemView.findViewById(R.id.row_description);
mImage = (ImageView) itemView.findViewById(R.id.row_image);
}
}
Activity.java
private void getData() {
try {
final String toSend = "http://www.test.com.my/test/api/kipcard_helpAPI.php";
new Thread(new Runnable() {
#Override
public void run() {
URL url = null;
HttpURLConnection conn = null;
String receivedString = null;
try {
url = new URL(toSend);
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
InputStream in = new BufferedInputStream(conn.getInputStream());
receivedString = IOUtils.toString(in, "UTF-8");
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Message msg = new Message();
Bundle b = new Bundle();
b.putString("mfeApi", receivedString);
msg.setData(b);
hGet.sendMessage(msg);
}
}).start();
} catch (Exception e) {
e.printStackTrace();
}
}
Handler hGet = new Handler() {
public void handleMessage(Message msg) {
Bundle b = msg.getData();
String s = b.getString("mfeApi");
items = s.split("\\|\\|");
size = items.length;
List <CardViewData> list = new ArrayList<CardViewData>();
for(int i = 0 ; i <= size-3 ; i+=3){
Log.d("here",items[i] +"" );
//new Thread(new getImageTask(imahr)).start();
list.add(new CardViewData(items[i+2], items[i+3], items[i+1]));
}
mAdapter = new SimpleCardViewAdapter(list);
mRecyclerView.setAdapter(mAdapter);
};
};

The problem is here:
new Thread(new getImageTask(var)).start();
viewHolder.mImage.setImageBitmap(downloadedBitmap);
As the thread do it's job parallel not synchronously downloadedBitmap can hold another's thread "old" result.

Instead of
new Thread(new getImageTask(var)).start();
viewHolder.mImage.setImageBitmap(downloadedBitmap);
Try using
final int position = i;
viewHolder.position = i;
new AsyncTask<Object, Void, Bitmap>() {
private AlbumViewHolder v;
#Override
protected Bitmap doInBackground( Object[] params ) {
v = (AlbumViewHolder) params[ 0 ];
// download here your image
return b;
}
#Override
protected void onPostExecute( Bitmap result ) {
super.onPostExecute( result );
if ( v.position == position && result != null ) {
// If this item hasn't been recycled already, hide the
// progress and set and show the image
v.mImageView.setImageBitmap( result );
v.mImageView.setVisibility( View.VISIBLE );
v.mProgressBar.setVisibility( View.GONE );
}
}
}.execute( viewHolder );
and in ViewHolder :
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView mTitle;
public TextView mDescription;
public ImageView mImage;
public int position;
public ViewHolder(View itemView) {
super(itemView);
mTitle = (TextView) itemView.findViewById(R.id.row_title);
mDescription = (TextView) itemView.findViewById(R.id.row_description);
mImage = (ImageView) itemView.findViewById(R.id.row_image);
}
}
And one more thing - your ViewHolder should have position parameter. And think about caching.

Try this:
add Context to your constructor
public SimpleCardViewAdapter(List<CardViewData> dataset, Activity activity){
this.mActivity = activity;
}
change in onBindViewHolder method:
new Thread(new getImageTask(var, viewHolder.mImage)).start();
and change your task like this:
class getImageTask implements Runnable {
String imageUrl;
ImageView imageView
getImageTask(String imgUrl, ImageView imageView){
imageUrl = imgUrl;
this.imageView = imageView;
}
#Override
public void run() {
try {
URL url = new URL(imageUrl);
//change this line also
Bitmap bitmap = BitmapFactory.decodeStream(url.openConnection().getInputStream());
//set you downloaded image now...
//new change ....
mActivity.runOnUiThread(new Runnable() {
#Override
public void run() {
//Your code to run in GUI thread here
if(bitmap != null)
imageView.setImageBitmap(bitmap);
}
});
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Message msg = new Message();
Bundle b = new Bundle();
b.putString("mfeApi", "1");
msg.setData(b);
handlerGroupedProductsImage.sendMessage(msg);
}
}
***but it will not cache bitmap, every time you scroll your recycler inside app it will download it again and again.

AsyncTask, doInBackground doesn't seem to work

I have that AsyncTask code
public class DiceTask extends AsyncTask<Socket, Void, int[]> {
private int[] arrayFromServer = new int[8];
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected int[] doInBackground(Socket...params) {
Socket soc = params[0];
try {
ObjectInputStream ois = new ObjectInputStream(soc.getInputStream());
int[] tempArray = (int[]) (ois.readObject());
return tempArray;
} catch (IOException | ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
#Override
protected void onProgressUpdate(Void...arg1) {
}
#Override
protected void onPostExecute(int[] result) {
arrayFromServer = result;
}
public int[] getTempDice() {
return arrayFromServer;
}
}
where is called this way into my main thread.
rollDiceButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
rollDiceButton.setEnabled(false);
rollDice();
task.execute(socket);
tempArray = task.getTempDice();
printDice(tempArray,pDice);
clickableDice(pDice);
}
});
where I am getting a null tempArray. If I change my onPreExecute to this
#Override
protected void onPreExecute() {
super.onPreExecute();
for(int i = 0; i < arrayFromServer.length; i++) {
arrayFromServer[i] = 1;
}
}
I am getting my dice as it should, all are one. The code I am running into the rollDice() is this
public void rollDice() {
try {
DataOutputStream sout = new DataOutputStream(socket.getOutputStream());
String line = "dice";
PrintStream out = new PrintStream(sout);
out.println(line);
} catch (UnknownHostException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
and I can see the results in the server.

You don't need to implement onPostExecute in your AsyncTask class definition. You also don't need the getTempDice function. You just need to override onPostExecute in an anonymous class and run your UI code in it.
rollDiceButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
rollDiceButton.setEnabled(false);
rollDice();
task = new DiceTask() {
#Override
public void onPostExecute(int[] result) {
tempArray = result;
printDice(tempArray,pDice);
clickableDice(pDice);
}
}.execute(socket);
}
});

Children of AsyncTask run in parallel with main Thread, you are trying access the attribute arrayFromServer right after to start the Thread. It's recommended you use a callback to retried the value wanted, making sure you get the value after Thread is done.
Making the follow changes can solve your problem. Let me know if you understand.
public class DiceTask extends AsyncTask<Socket, Void, int[]> {
public interface Callback {
void onDone(int[] arrayFromServer);
}
private Callback mCallback;
public DiceTask(Callback c) {
mCallback = c;
}
#Override
protected int[] doInBackground(Socket...params) {
Socket soc = params[0];
try {
ObjectInputStream ois = new ObjectInputStream(soc.getInputStream());
int[] tempArray = (int[]) (ois.readObject());
return tempArray;
} catch (IOException | ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
#Override
protected void onPostExecute(int[] result) {
mCallback.onDone(result);
}
}
rollDiceButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
rollDiceButton.setEnabled(false);
rollDice();
new DiceTask(new Callback() {
public void onDone(int[] tempArray) {
printDice(tempArray,pDice);
clickableDice(pDice);
}
}).execute(socket);
}
});

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

problem accessing run() in android - android

First of all, I would recommend you using AsyncTask. The mistake here is that you are creating a Runnable but not passing it to a new Thread() You are missing something like this: Thread heavyLoader = new Thread(r); heavyLoader.start();

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