Develop Reference

The textview is not stable in custom listview android

actually I Have a custom listview which contains a countdown timer and the countdown timer is created by a handler, now the list loads fine and everything seems to be correct but when I start to scroll the countdown timer becomes shaky and unstable the values seems to overlap each other means the lastrow values are printed in the first row and things like that, the values are up and down and it does not work properly, here the API sends a long value which is passed to handler and the handler converts that to a countdown timer, so where does the problem lies , whenever I refresh the list it becomes all fine, but as I start scrolling the same problem comes again.. here is my code
public class fixtures extends Fragment {
private ListView fixtureListView;
String Balance,userEmail;
SwipeRefreshLayout mSwipeRefreshLayout;
private static final String FORMAT = "%02d:%02d:%02d";
List<ListView_fixture_conveyer> fixture_conveyerList;
ListView_fixture_conveyer fixtureList;
#Override
public View onCreateView(#NonNull LayoutInflater inflater, ViewGroup viewGroup, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fixtures, viewGroup, false);
fixtureListView = view.findViewById(R.id.fixture_list);
mSwipeRefreshLayout = view.findViewById(R.id.swipeToRefresh);
User user = SharedPrefManager.getInstance(getActivity()).getUser();
userEmail= user.getEmail();
new JSONTask().execute("http://www.judgement6.com/judgement_files/fixture_json.php");
DisplayImageOptions options = new DisplayImageOptions.Builder()
.cacheInMemory(true)
.cacheOnDisk(true)
.build();
ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(Objects.requireNonNull(getActivity()))
.defaultDisplayImageOptions(options)
.build();
com.nostra13.universalimageloader.core.ImageLoader.getInstance().init(config);
mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
fixture_conveyerList.clear();
new JSONTask().execute("http://www.judgement6.com/judgement_files/fixture_json.php");
mSwipeRefreshLayout.setRefreshing(false);
}
});
return view;
}
#SuppressLint("StaticFieldLeak")
public class JSONTask extends AsyncTask<String, String, List<ListView_fixture_conveyer>> {
ProgressDialog loading;
#Override
protected void onPreExecute() {
super.onPreExecute();
loading = ProgressDialog.show(getActivity(), "loading,please wait...", null, true, true);
}
#Override
protected List<ListView_fixture_conveyer> doInBackground(String... params) {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(params[0]);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuilder buffer = new StringBuilder();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
String finalJson = buffer.toString();
JSONObject parentObject = new JSONObject(finalJson);
JSONArray parentArray = parentObject.getJSONArray("list");
fixture_conveyerList = new ArrayList<ListView_fixture_conveyer>();
for (int i = 0; i < parentArray.length(); i++) {
JSONObject finalObject = parentArray.getJSONObject(i);
Log.e("fixtureObject",finalObject.toString());
fixtureList = new ListView_fixture_conveyer();
fixtureList.setTournament(finalObject.getString("tournament"));
fixtureList.setTeam1_photo(finalObject.getString("team1_photo"));
fixtureList.setTeam2_photo(finalObject.getString("team2_photo"));
fixtureList.setTeam1_name(finalObject.getString("team1_name"));
fixtureList.setTeam2_name(finalObject.getString("team2_name"));
fixtureList.setTime(finalObject.getString("Time"));
fixture_conveyerList.add(fixtureList);
}
return fixture_conveyerList;
} catch (IOException | JSONException e) {
e.printStackTrace();
} finally {
if (connection != null) {
connection.disconnect();
}
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(List<ListView_fixture_conveyer> result) {
super.onPostExecute(result);
if (result !=null) {
loading.dismiss();
ListAdapter adapter = new ListAdapter(getActivity(), R.layout.custom_list_fixture, result);
fixtureListView.setAdapter(adapter);
}
else
{
Toast.makeText(getActivity(), "No Internet Connection!", Toast.LENGTH_LONG).show();
loading.dismiss();
}
}
}
public class ListAdapter extends ArrayAdapter {
private List<ListView_fixture_conveyer> fixture_conveyerList;
private int resource;
private LayoutInflater inflater;
ListAdapter(Context context, int resource, List<ListView_fixture_conveyer> objects) {
super(context, resource, objects);
fixture_conveyerList = objects;
this.resource = resource;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getViewTypeCount() {
return getCount();
}
#Override
public int getItemViewType(int position) {
return position;
}
#NonNull
#Override
public View getView(final int position, View convertView, #NonNull ViewGroup parent) {
if (convertView == null) {
convertView = inflater.inflate(resource, null);
}
final TextView team1_name,team2_name;
final TextView tournament,time;
ImageView team1_photo,team2_photo;
team1_photo = convertView.findViewById(R.id.team1);
team2_photo = convertView.findViewById(R.id.team2);
team1_name = convertView.findViewById(R.id.team1_name);
team2_name = convertView.findViewById(R.id.team2_name);
tournament= convertView.findViewById(R.id.tournament);
time= convertView.findViewById(R.id.timecounter);
ImageLoader.getInstance().displayImage(fixture_conveyerList.get(position).getTeam1_photo(), team1_photo);
ImageLoader.getInstance().displayImage(fixture_conveyerList.get(position).getTeam2_photo(), team2_photo);
team1_name.setText(fixture_conveyerList.get(position).getTeam1_name());
team2_name.setText(fixture_conveyerList.get(position).getTeam2_name());
tournament.setText(fixture_conveyerList.get(position).getTournament());
time.setText(fixture_conveyerList.get(position).getTime());
Log.e("mytimer",fixture_conveyerList.get(position).getTime());
if (!("false").equals(fixture_conveyerList.get(position).getTime())){
Log.e("inside_mytimer",fixture_conveyerList.get(position).getTime());
long newValue=Long.parseLong(fixture_conveyerList.get(position).getTime());
new CountDownTimer(newValue, 1000) {
#SuppressLint({"DefaultLocale", "SetTextI18n"})
public void onTick(long millisUntilFinished) {
time.setText("" + String.format(FORMAT,
TimeUnit.MILLISECONDS.toHours(millisUntilFinished),
TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished) - TimeUnit.HOURS.toMinutes(
TimeUnit.MILLISECONDS.toHours(millisUntilFinished)),
TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) - TimeUnit.MINUTES.toSeconds(
TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished))));
}
public void onFinish() {
time.setText("Fixture closed");
}
}.start();
}
else{
time.setText("Fixture closed");
}
return convertView;
}
}
}
Here is my model class code
public class ListView_fixture_conveyer {
private String tournament;
private String team1_photo;
private String team2_photo;
private String team1_name;
private String team2_name;
private String time;
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public String getTeam1_name() {
return team1_name;
}
public void setTeam1_name(String team1_name) {
this.team1_name = team1_name;
}
public String getTeam2_name() {
return team2_name;
}
public void setTeam2_name(String team2_name) {
this.team2_name = team2_name;
}
public String getTournament() {
return tournament;
}
public void setTournament(String tournament) {
this.tournament = tournament;
}
public String getTeam1_photo() {
return team1_photo;
}
public void setTeam1_photo(String team1_photo) {
this.team1_photo = team1_photo;
}
public String getTeam2_photo() {
return team2_photo;
}
public void setTeam2_photo(String team2_photo) {
this.team2_photo = team2_photo;
}
}

Edit (Tested)
---> For Timer issue , you need to take time variable in your class and update variable with Handler use it with reload data. Like,
Handler timerHandler = new Handler();
Runnable timerRunnable = new Runnable() {
#Override
public void run() {
for (int i = 0, dataLength = fixture_conveyerList.size(); i < dataLength; i++) {
ListView_fixture_conveyer item = fixture_conveyerList.get(i);
item.timeRemaining -= 1000;
}
adapter.notifyDataSetChanged();
timerHandler.postDelayed(this, 1000); //run every Second
}
};
List Adapter Class
public class ListAdapter extends ArrayAdapter {
private List<ListView_fixture_conveyer> fixture_conveyerList;
private int resource;
private LayoutInflater inflater;
ViewHolder holder;
ListAdapter(Context context, int resource, List<ListView_fixture_conveyer> objects) {
super(context, resource, objects);
fixture_conveyerList = objects;
this.resource = resource;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
timerHandler.postDelayed(timerRunnable, 50); //start unique timer
}
#Override
public int getViewTypeCount() {
return getCount();
}
#Override
public int getItemViewType(int position) {
return position;
}
#NonNull
#Override
public View getView(final int position, View convertView, #NonNull ViewGroup parent) {
if (convertView == null) {
convertView = inflater.inflate(resource, null);
holder = new ViewHolder();
holder.team1_photo = convertView.findViewById(R.id.team1);
holder.team2_photo = convertView.findViewById(R.id.team2);
holder.team1_name = convertView.findViewById(R.id.team1_name);
holder.team2_name = convertView.findViewById(R.id.team2_name);
holder.tournament = convertView.findViewById(R.id.tournament);
holder.time = convertView.findViewById(R.id.timecounter);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
ImageLoader.getInstance().displayImage(fixture_conveyerList.get(position).getTeam1_photo(), holder.team1_photo);
ImageLoader.getInstance().displayImage(fixture_conveyerList.get(position).getTeam2_photo(), holder.team2_photo);
holder.team1_name.setText(fixture_conveyerList.get(position).getTeam1_name());
holder.team2_name.setText(fixture_conveyerList.get(position).getTeam2_name());
holder.tournament.setText(fixture_conveyerList.get(position).getTournament());
holder.time.setText(fixture_conveyerList.get(position).timeRemaining);
Log.e("mytimer", fixture_conveyerList.get(position).getTime());
if (!("false").equals(fixture_conveyerList.get(position).getTime())) {
Log.e("inside_mytimer", fixture_conveyerList.get(position).getTime());
long newValue = fixture_conveyerList.get(position).timeRemaining;
if (newValue > 0) {
holder.time.setText(String.format(FORMAT,
TimeUnit.MILLISECONDS.toHours(newValue),
TimeUnit.MILLISECONDS.toMinutes(newValue) - TimeUnit.HOURS.toMinutes(
TimeUnit.MILLISECONDS.toHours(newValue)),
TimeUnit.MILLISECONDS.toSeconds(newValue) - TimeUnit.MINUTES.toSeconds(
TimeUnit.MILLISECONDS.toMinutes(newValue))));
} else {
holder.time.setText("Fixture closed");
}
} else {
holder.time.setText("Fixture closed");
}
return convertView;
}
}

Alternate row color in ListView in Android Studio

i want to read a xml file and show the items in a ListView,,,,now i can do it and after it i want to alternate row colors in ListView and i find a solution in this topic ,,,but i have a problem with getView method,,,what is my problem?
public class MainActivity extends Activity {
ArrayAdapter<App> adapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
EditText EDSearch= (EditText) findViewById(R.id.EDSearch);
ListView listView = (ListView) findViewById(R.id.listView1);
List<App> apps = null;
try {
XMLPullParserHandler parser = new XMLPullParserHandler();
InputStream is=getAssets().open("main.xml");
apps = parser.parse(is);
adapter =new ArrayAdapter<App>
(this,android.R.layout.simple_list_item_1, apps);
listView.setAdapter(adapter);
}
catch (IOException e) {e.printStackTrace();}
//Text Changed for search in ListView
listView.setTextFilterEnabled(true);
EDSearch.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
MainActivity.this.adapter.getFilter().filter(s);
}
});
}
// fill the listview by xml file
public class App {
private int id,location;
private String title,activtiy,address;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getActivtiy() {
return activtiy;
}
public void setActivtiy(String activtiy) {
this.activtiy = activtiy;
}
public int getLocation() {
return location;
}
public void setLocation(int location) {
this.location = location;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
#Override
public String toString() {
return id + "\n " + title + "\n" +activtiy+"\n"+location+"\n"+address;
}
//Here is my problem,,,cant reolve getView
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = super.getView(position, convertView, parent);
if (position % 2 == 1) {
view.setBackgroundColor(Color.BLUE);
} else {
view.setBackgroundColor(Color.CYAN);
}
return view;
}
}
public class XMLPullParserHandler {
private List<App> root= new ArrayList<App>();
private App app;
private String text;
public List<App> getApps() {
return root;
}
public List<App> parse(InputStream is) {
try {
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(true);
XmlPullParser parser = factory.newPullParser();
parser.setInput(is, null);
int eventType = parser.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
String tagname = parser.getName();
switch (eventType) {
case XmlPullParser.START_TAG:
if (tagname.equalsIgnoreCase("row")) {
app = new App();
}
break;
case XmlPullParser.TEXT:
text = parser.getText();
break;
case XmlPullParser.END_TAG:
if (tagname.equalsIgnoreCase("row")) {
root.add(app);
}else if (tagname.equalsIgnoreCase("id")) {
app.setId(Integer.parseInt(text));
}
else if (tagname.equalsIgnoreCase("title")) {
app.setTitle(text);
}
else if (tagname.equalsIgnoreCase("activity")) {
app.setActivtiy(text);
}
else if (tagname.equalsIgnoreCase("location")) {
app.setLocation(Integer.parseInt(text));
} else if (tagname.equalsIgnoreCase("address")) {
app.setAddress(text);
}
break;
default:
break;
}
eventType = parser.next();
}
} catch (XmlPullParserException e) {e.printStackTrace();}
catch (IOException e) {e.printStackTrace();}
return root;
}
}
this is my layout file
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.asaravani.sqlserver.MainActivity">
<ListView
android:id="#+id/listView1"
android:layout_width="match_parent"
android:layout_height="500px"
android:divider="#d8d8d8"
android:dividerHeight="1dp"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_below="#+id/EDSearch">
</ListView>
<EditText
android:id="#+id/EDSearch"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:drawableRight="#android:drawable/ic_menu_search"
android:ems="10"
android:hint="کلمه مورد نظر را وارد کنید" >
<requestFocus />
</EditText>

You need a to write a CustomAdapter to do this. The getView method belongs to an adapter and not an Activity. You are trying to write the getView method inside the activity, which is the cause of your error.
This is how you create a custom adapter.

You need to implement an custom adapter for that. I give you an example and i have put in the change of background color for each list item and it works fine. Remember to use viewHolder for each list item components.
public class EarnRedeemAdapter extends BaseAdapter {
private Context context;
private List<GroupData<Merchant>> sortMerchants = new ArrayList<>();
private Transformation transformation;
private boolean earnFlag = true;
public EarnRedeemAdapter(Context context, List<GroupData<Merchant>> list) {
this.context = context;
this.sortMerchants = list;
UtuAppRunningStorage.wrapperMerchantList.clear();
}
public EarnRedeemAdapter(Context context, List<GroupData<Merchant>> list, boolean earnFlag) {
this.context = context;
this.sortMerchants = list;
this.earnFlag = earnFlag;
UtuAppRunningStorage.wrapperMerchantList.clear();
}
#Override
public int getCount() {
return sortMerchants.size();
}
#Override
public Object getItem(int position) {
return sortMerchants.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (convertView == null) {
viewHolder = new ViewHolder();
convertView = LayoutInflater.from(context).inflate(R.layout.item_earn_redeem, parent, false);
viewHolder.iv_item_earn_redeem_merchant_icon = (ImageView) convertView.findViewById(R.id.iv_item_earn_redeem_merchant_icon);
viewHolder.tv_item_earn_redeem_merchant_points = (TextView) convertView.findViewById(R.id.tv_item_earn_redeem_merchant_points);
viewHolder.tv_item_earn_redeem_merchant_name = (TextView) convertView.findViewById(R.id.tv_item_earn_redeem_merchant_name);
viewHolder.tv_item_earn_redeem_merchant_category = (TextView) convertView.findViewById(R.id.tv_item_earn_redeem_merchant_category);
viewHolder.tv_item_earn_redeem_merchant_distance = (TextView) convertView.findViewById(R.id.tv_item_earn_redeem_merchant_distance);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
if (position % 2 == 1) {
convertView.setBackgroundColor(Color.BLUE);
} else {
convertView.setBackgroundColor(Color.CYAN);
}
if (merchant != null) {
if (!TextUtils.isEmpty(merchant.getImage())) {
Picasso.with(context)
.load(merchant.getImage())
.placeholder(R.drawable.icon_background_white)
//.transform(new CircleTransform())
.transform(new RoundedTransformation(4, 1))
.into(viewHolder.iv_item_earn_redeem_merchant_icon);
}
//System.out.println("---> merchant.getRewardsdesc(): " + merchant.getRewardsdesc());
if (TextUtils.isEmpty(merchant.getRewardslistingdesc())) {
viewHolder.tv_item_earn_redeem_merchant_points.setVisibility(View.GONE);
viewHolder.tv_item_earn_redeem_merchant_points.setBackgroundColor(Color.TRANSPARENT);
} else {
viewHolder.tv_item_earn_redeem_merchant_points.setVisibility(View.VISIBLE);
viewHolder.tv_item_earn_redeem_merchant_points.setText(merchant.getRewardslistingdesc());
}
viewHolder.tv_item_earn_redeem_merchant_name.setText(merchant.getMerchantname());
viewHolder.tv_item_earn_redeem_merchant_category.setText(merchant.getCategorydesc());
return convertView;
}
}
class ViewHolder {
private ImageView iv_item_earn_redeem_merchant_icon;
private TextView tv_item_earn_redeem_merchant_points;
private TextView tv_item_earn_redeem_merchant_name;
private TextView tv_item_earn_redeem_merchant_category;
private TextView tv_item_earn_redeem_merchant_distance;
}
}

how can i pass the image URL from activity to Alert Dialog box as a imageview?

Here is my CartRowHolder
class CartRowHolder {
ImageView icon;
TextView txtprice,txttitle,personalize;
TextView txtquantity;
ImageView imgdelete,imgedit,image;
public CartRowHolder(View v) {
icon=(ImageView)v.findViewById(R.id.imageicon);
txtprice=(TextView)v.findViewById(R.id.txtoprice);
txttitle=(TextView)v.findViewById(R.id.txtotitle);
txtquantity=(TextView)v.findViewById(R.id.txtoquantity);
personalize=(TextView)v.findViewById(R.id.txtpersonalize);
imgdelete=(ImageView)v.findViewById(R.id.imgdelete);
imgedit=(ImageView)v.findViewById(R.id.edit);
}
}
Now in the ListView a ImageView and Delete Button, Edit button is there So as i click on the Edit a Dialogbox is open and in the Dialogbox i want to pass the imageView.....and i have the ImageUrl
class CartAdapter extends BaseAdapter {
Activity activity;
List<CartItem> cartItemList;
ImageLoader imageLoader;
LayoutInflater layoutInflater;
CartItem cartItem;
AppPreferenceManager appPreferenceManager;
public CartAdapter(Activity activity,List<CartItem>cartItemList) {
this.activity=activity;
this.cartItemList=cartItemList;
appPreferenceManager=new AppPreferenceManager(activity);
}
public int getCount() {
return cartItemList.size();
}
#Override
public Object getItem(int position) {
return cartItemList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
cartItem=cartItemList.get(position);
CartRowHolder cartRowHolder;
Bundle extras = getIntent().getExtras();
TextView tk;
if (extras != null) {
}
if(imageLoader==null) {
imageLoader=new ImageLoader(activity);
}
if(layoutInflater==null) {
layoutInflater=(LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
if(convertView==null) {
convertView=layoutInflater.inflate(R.layout.order_row,null);
cartRowHolder=new CartRowHolder(convertView);
cartRowHolder.imgdelete.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
CartItem cartItem=cartItemList.get(position);
deletCartItem(cartItem.getPid());
}
});
cartRowHolder.imgedit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final CartItem cartItem=cartItemList.get(position);
ImageView image;
final EditText personalise;
Button update;
final TextView quan,title1;
final ImageButton plusd,minusd;
final AlertDialog alertDialog;
View view=getLayoutInflater().inflate(R.layout.activity_edit,null);
final AlertDialog.Builder builder=new AlertDialog.Builder(CartActivity.this).setView(view);
update = (Button)view.findViewById(R.id.update);
quan=(TextView)view.findViewById(R.id.quan);
minusd=(ImageButton)view.findViewById(R.id.minus);
plusd=(ImageButton)view.findViewById(R.id.plus);
alertDialog=builder.create();
title1=(TextView)view.findViewById(R.id.TitleView);
title1.setText(cartItemList.get(position).getName());
personalise=(EditText)view.findViewById(R.id.editpersonalize);
personalise.setText(cartItemList.get(position).getPersonalize());
quan.setText(cartItemList.get(position).getQunatity());
image=(ImageView)view.findViewById(R.id.image1);
//imageLoader.DisplayImage(Bitmap.get);
final int num=Integer.parseInt(quan.getText().toString());
final int[] counter = {num};
plusd.setOnClickListener(new View.OnClickListener() {
//int counter=0;
#Override
public void onClick(View v) {
//Toast.makeText(CartActivity.this, "Positive is click", Toast.LENGTH_SHORT).show();
counter[0]++;
quan.setText(""+ counter[0]);
minusd.setClickable(true);
plusd.setClickable(true);
if(counter[0] ==10){
plusd.setClickable(false);
minusd.setClickable(true);
Toast.makeText(CartActivity.this, "it's maxium limit", Toast.LENGTH_SHORT).show();
}
//Toast.makeText(SingleItem_Activity.this, "it's maxium limit", Toast.LENGTH_SHORT).show();
if(counter[0] >=10) {
plusd.setClickable(false);
minusd.setClickable(true);
Toast.makeText(CartActivity.this, "it's maxium limit", Toast.LENGTH_SHORT).show();
}
}
});
minusd.setOnClickListener(new View.OnClickListener() {
// int counter=0;
#Override
public void onClick(View v) {
if(counter[0] ==1) {
minusd.setClickable(false);
}
else{
counter[0] = counter[0] -1;
quan.setText(""+ counter[0]);
if(counter[0] <=1){
minusd.setClickable(false);
plusd.setClickable(true);}
}
}
});
update.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String update_quan=quan.getText().toString();
String update_personalise = personalise.getText().toString();
updateCartItem(update_quan,cartItem.getPid(),update_personalise);
//Toast.makeText(CartActivity.this, "it's maxium limit", Toast.LENGTH_SHORT).show();
alertDialog.dismiss();
}
});
alertDialog.show();
}
});
cartRowHolder.txttitle.setText(cartItem.getName());
cartRowHolder.txtprice.setText(cartItem.getSubtotal());
cartRowHolder.txtquantity.setText(cartItem.getQunatity());
cartRowHolder.personalize.setText(cartItem.getPersonalize());
imageLoader.DisplayImage(cartItem.getImage(), cartRowHolder.icon);
}
return convertView;
}

OK, you will need to following code:
1) add permission for internet in your manifest
<uses-permission android:name="android.permission.INTERNET" />
2) You will need to update your list adapter
private static final int MIN_RECORDS_NUMBER = 11;
private Context _con;
private List<Person> _data;
public PersonAdapter(Context context, List<Person> data)
{
_con = context;
_data = data;
}
#Override
public int getCount()
{
return _data.size();
}
#Override
public Person getItem(int position)
{
return _data.get(position);
}
#Override
public long getItemId(int position)
{
// TODO Auto-generated method stub
return 0;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent)
{
Holder h = null;
if (convertView == null)
{
h = new Holder();
convertView = LayoutInflater.from(_con).inflate(R.layout.item_layout, parent, false);
h._backgroundItem = (LinearLayout) convertView.findViewById(R.id.item_layout);
h._fName = (TextView) convertView.findViewById(R.id.f_name);
h._lName = (TextView) convertView.findViewById(R.id.l_name);
h._age = (TextView) convertView.findViewById(R.id.age);
h._editBtn = (Button) convertView.findViewById(R.id.edit_btn);
convertView.setTag(h);
}
else
{
h = (Holder) convertView.getTag();
}
final Person p = getItem(position);
h._fName.setText(p._fName);
h._lName.setText(p._lName);
h._age.setText(String.valueOf(p._age));
h._backgroundItem.setActivated(p._selected);
h._editBtn.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
((MainActivity)_con).onEditClick(p._url);
}
});
convertView.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
Person p = getItem(position);
Intent i = new Intent(_con,SecondActivity.class);
i.putExtra("DATA", p._fName);
_con.startActivity(i);
}
});
return convertView;
}
public void setData(List<Person> data)
{
_data = data;
notifyDataSetChanged();
}
private static class Holder
{
public LinearLayout _backgroundItem;
public TextView _fName;
public TextView _lName;
public TextView _age;
public Button _editBtn;
}
public interface IDialog
{
public void onEditClick(String url);
}
3) update your mainactivity
public class MainActivity extends Activity implements IDialog
{
private ListView _listView;
private PersonAdapter _adapter;
private Button _sortBtn;
private List<Person> _data;
private int _sort;
private int _selectedItemIndex;
private Bitmap _bit;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
_listView = (ListView) findViewById(R.id.list);
_sortBtn = (Button) findViewById(R.id.sort_list_btn);
_selectedItemIndex = -1;
_sort = 1;
_data = new ArrayList<Person>();
_data.add(new Person("http://i2.cdn.turner.com/cnnnext/dam/assets/160503230552-sanders-clinton-trump-triple-composite-mullery-medium-tease.jpg","abc", "defg", 1));
_data.add(new Person("http://i2.cdn.turner.com/cnnnext/dam/assets/160503230552-sanders-clinton-trump-triple-composite-mullery-medium-tease.jpg","aaa", "defg", 12));
_data.add(new Person("http://i2.cdn.turner.com/cnnnext/dam/assets/160503230552-sanders-clinton-trump-triple-composite-mullery-medium-tease.jpg","ccc", "defg", 13));
_data.add(new Person("http://i2.cdn.turner.com/cnnnext/dam/assets/160511120611-bud-america-medium-tease.jpg","bb", "defg", 14));
_data.add(new Person("http://i2.cdn.turner.com/cnnnext/dam/assets/160511120611-bud-america-medium-tease.jpg","aa", "defg", 144));
_data.add(new Person("http://i2.cdn.turner.com/cnnnext/dam/assets/160511120611-bud-america-medium-tease.jpg","fff", "defg", 199));
_adapter = new PersonAdapter(this, _data);
_listView.setAdapter(_adapter);
_listView.setOnItemClickListener(new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
if(position<_data.size())
{
if(_selectedItemIndex>-1)
{
_data.get(_selectedItemIndex)._selected = false;
}
_selectedItemIndex = position;
_data.get(position)._selected = true;
_adapter.setData(_data);
}
}
});
_sortBtn.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
if(_selectedItemIndex>-1)
{
_listView.clearChoices();
String fName = _adapter.getItem(_selectedItemIndex)._fName;
Comparator<Person> sortById = Person.getComperatorByFirstName(_sort);
Collections.sort(_data, sortById);
int newSelectedItemIndex = getSelectedItemIndexByFName(fName);
_selectedItemIndex = newSelectedItemIndex;
_adapter.setData(_data);
if(newSelectedItemIndex>-1)
{
_listView.setItemChecked(newSelectedItemIndex, true);
}
_sort = -_sort;
}
else
{
Comparator<Person> sortById = Person.getComperatorByFirstName(_sort);
Collections.sort(_data, sortById);
_adapter.setData(_data);
_sort = -_sort;
}
}
});
}
private int getSelectedItemIndexByFName(String name)
{
for(int index=0;index<_data.size();index++)
{
if(_data.get(index)._fName.equals(name))
{
return index;
}
}
return -1;
}
public static class Person
{
public String _url;
public String _fName;
public String _lName;
public int _age;
public boolean _selected;
public Person(String url,String fName, String lName, int age)
{
_url = url;
_fName = fName;
_lName = lName;
_age = age;
}
public static Comparator<Person> getComperatorByFirstName(final int ascendingFlag)
{
return new Comparator<Person>()
{
#Override
public int compare(Person patient1, Person patient2)
{
return patient1._fName.compareTo(patient2._fName) * ascendingFlag;
}
};
}
}
public Bitmap getBitmapFromURL(String src) {
try
{
URL url = new URL(src);
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setInstanceFollowRedirects(true);
Bitmap image = BitmapFactory.decodeStream(httpCon.getInputStream());
return image;
}
catch (MalformedURLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
#Override
public void onEditClick(final String url)
{
new Thread(new Runnable()
{
#Override
public void run()
{
_bit = getBitmapFromURL(url);
runOnUiThread(new Runnable()
{
#Override
public void run()
{
Dialog dialog = new Dialog(MainActivity.this);
dialog.setContentView(R.layout.custom_image);
ImageView image = (ImageView) dialog.findViewById(R.id.image);
if(_bit!=null)
{
image.setImageBitmap(_bit);
}
dialog.setTitle("This is my custom dialog box");
dialog.setCancelable(true);
//there are a lot of settings, for dialog, check them all out!
dialog.show();
}
});
}
}).start();
}
4) custom image layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/image"/>
</LinearLayout>
A bit of explanation:
there is an interface between the activity and the list adapter (IDialog)
as part of the data, each item(person) has a field URL, when the user is clicking on the button, the activity is "notified" by the interface and downloading the appropriate image and showing it in the dialog

After so any hour I find out the Soloution. Now In the Dialog-box i can again download the image.....
imageFileURL="url";
String imageFileURL=cartItemList.get(position).getImage();
try {
URL url = new URL(imageFileURL);
URLConnection conn = url.openConnection();
HttpURLConnection httpConn = (HttpURLConnection)conn;
httpConn.connect();
InputStream inputStream = httpConn.getInputStream();
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
inputStream.close();
image.setImageBitmap(bitmap);
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

App is crashing while scrolling the listview

In my app I'm showing data in listview. While scrolling through listview my app is crashing. What changes should I make?
as given in the error my RecipeListFragment.java file is:
public class RecipeListFragment extends Fragment {
MyDatabase db ;
boolean isfav = false;
Context context;
ListView lvrecipe;
ArrayList<RecipePojo> recipelist = new ArrayList<RecipePojo>();
LinearLayout ll;
ImageView fav_unfav;
DisplayImageOptions options;
private ProgressDialog progress;
ImageLoadingListener animateFirstListener = new AnimateFirstDisplayListener();
int counter=8;
int position;
String recipeid;
int checkcounter = 0;
private Custom_Adapter adapter;
public RecipeListFragment() {
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_recipe_list_actvity, container,false);
context=getActivity();
lvrecipe = (ListView)rootView.findViewById(R.id.lvrecipe);
new getrecipe().execute();
db = new MyDatabase(getActivity());
position = DataManager.selectedposition;
adapter = new Custom_Adapter(getActivity());
adapter.notifyDataSetChanged();
lvrecipe.setAdapter(adapter);
lvrecipe.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
DataManager.selectedposition = position;
Intent i = new Intent(getActivity(), RecipeDescription.class);
i.putExtra("cusinename", DataManager.cusinename);
startActivity(i);
getActivity().finish();
}
});
return rootView;
}
#Override
public void onResume() {
super.onResume();
}
public class Custom_Adapter extends BaseAdapter {
private LayoutInflater mInflater;
public Custom_Adapter(Context c) {
mInflater = LayoutInflater.from(c);
}
#Override
public int getCount() {
if(recipelist!=null){
return recipelist.size();
}else{
return 0;
}
}
#Override
public Object getItem(int position) {
if(recipelist!=null){
return recipelist.get(position);
}else{
return 0;
}
}
#Override
public long getItemId(int position) {
if(recipelist!=null){
return position;
}else{
return 0;
}
}
#SuppressWarnings("deprecation")
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.recipelist, null);
holder = new ViewHolder();
holder.txttile = (TextView) convertView.findViewById(R.id.txttile);
holder.imgrecipe = (ImageView) convertView.findViewById(R.id.imgrecipe);
holder.fav_unfav = (ImageView) convertView.findViewById(R.id.fav_unfav);
holder.ratingbar = (RatingBar) convertView.findViewById(R.id.ratingbar);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
if(recipelist!=null){
recipeid = recipelist.get(position).getRecipeid();
checkcounter = db.checkrecipefav(recipeid);
}
if(checkcounter > 0) {
isfav = true;
} else {
isfav = false;
}
db.close();
if(isfav){
holder.fav_unfav.setBackgroundDrawable(getResources().getDrawable(R.drawable.favourite));
}
else{
holder.fav_unfav.setBackgroundDrawable(getResources().getDrawable(R.drawable.favourites));
}
Typeface face1 = Typeface.createFromAsset(getActivity().getAssets(),"sinkin_sans_300_light.ttf");
Typeface face2 = Typeface.createFromAsset(getActivity().getAssets(),"sinkin_sans_400_regular.ttf");
holder.txttile.setTypeface(face2);
// holder.txtduration.setTypeface(face1);
holder.txttile.setText(recipelist.get(position).getRecipename());
try{
String [] prep=recipelist.get(position).getPrep_time().split(" ");
String [] cook=recipelist.get(position).getCooking_time().split(" ");
int totalTime=Integer.parseInt(prep[0])+Integer.parseInt(cook[0]);
}catch(NumberFormatException e){
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
String url = DataManager.photourl+"recipe/"+recipelist.get(position).getRecipeid()+".jpg";
try {
url = URLDecoder.decode(url, "UTF-8");
url = url.replaceAll(" ", "%20");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
if(recipelist.get(position).getVideo_link().equals("none"))
{
}
String rating = recipelist.get(position).getRatings();
if(rating!=null && rating.trim().length() > 0)
{
holder.ratingbar.setRating(Float.valueOf(rating));
}
if(holder.imgrecipe!=null){
if (url != null && url.trim().length() > 0)
{
final ImageView imageView = holder.imgrecipe;
//final RelativeLayout imgRL = holder.imageRL;
ImageLoader.getInstance().displayImage(url, holder.imgrecipe,options, new SimpleImageLoadingListener()
{
#Override
public void onLoadingComplete(String imageUri,
View view, Bitmap loadedImage)
{
super.onLoadingComplete(imageUri, view, loadedImage);
imageView.setAdjustViewBounds(true);
}
#Override
public void onLoadingFailed(String imageUri, View view,FailReason failReason) {
super.onLoadingFailed(imageUri, view, failReason);
}
#Override
public void onLoadingStarted(String imageUri, View view) {
super.onLoadingStarted(imageUri, view);
}
});
} else {}
}
return convertView;
}
class ViewHolder {
TextView txttile;
ImageView imgrecipe;
ImageView fav_unfav;
RatingBar ratingbar;
}
}
public class getrecipe extends AsyncTask<String, Void, String> {
boolean response = false;
#Override
protected void onPreExecute() {
//progress = ProgressDialog.show(context, "Getting Data...","Please wait....");
progress = new ProgressDialog(getActivity());
progress.setMessage("Please wait....");
progress.show();
}
#Override
protected String doInBackground(String... params) {
response = APIManager.getrecipebycusine(DataManager.CUISINE_ID);
return "";
}
#Override
protected void onPostExecute(String result) {
progress.cancel();
if (response) {
if (DataManager.status.equalsIgnoreCase("1")) {
recipelist = DataManager.recipelist;
adapter.notifyDataSetChanged();
//Intent i = new Intent(getActivity(),RecipeListActvity.class);
//startActivity(i);
} else {
connectionerror();
}
} else {
connectionerror();
}
}
#Override
protected void onProgressUpdate(Void... values) {
}
}
public void alert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity());
alertDialog.setTitle("No Recipe!");
alertDialog.setMessage("No Recipe for this Cusine");
alertDialog.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
alertDialog.show();
}
private static class AnimateFirstDisplayListener extends SimpleImageLoadingListener {
static final List<String> displayedImages = Collections.synchronizedList(new LinkedList<String>());
#Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
if (loadedImage != null) {
ImageView imageView = (ImageView) view;
boolean firstDisplay = !displayedImages.contains(imageUri);
if (firstDisplay) {
FadeInBitmapDisplayer.animate(imageView, 500);
displayedImages.add(imageUri);
}
}
}
}
public void connectionerror() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity());
alertDialog.setTitle("Error!");
alertDialog.setMessage("Connection Lost ! Try Again");
alertDialog.setPositiveButton("Retry",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
new getrecipe().execute();
}
});
alertDialog.show();
}
}
The errors that is showing in Crashlytics is:
Fatal Exception: java.lang.NumberFormatException: Invalid float: ""
at java.lang.StringToReal.invalidReal(StringToReal.java:63)
at java.lang.StringToReal.initialParse(StringToReal.java:176)
at java.lang.StringToReal.parseFloat(StringToReal.java:323)
at java.lang.Float.parseFloat(Float.java:306)
at java.lang.Float.valueOf(Float.java:343)
at com.raccoonfinger.glutenfree.RecipeListFragment$Custom_Adapter.getView(Unknown Source)
at android.widget.AbsListView.obtainView(AbsListView.java:2344)
at android.widget.ListView.makeAndAddView(ListView.java:1864)
at android.widget.ListView.fillDown(ListView.java:698)
at android.widget.ListView.fillGap(ListView.java:662)
at android.widget.AbsListView.trackMotionScroll(AbsListView.java:4968)
at android.widget.AbsListView$FlingRunnable.run(AbsListView.java:4512)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
at android.view.Choreographer.doCallbacks(Choreographer.java:580)
at android.view.Choreographer.doFrame(Choreographer.java:549)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5312)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696)

I think you get error on below Line.
holder.ratingbar.setRating(Float.valueOf(rating));
This means the value inside "rating" is string, please check.

Setting Rating takes float value , in Case ur value is String :
holder.ratingbar.setRating(Float.parseFloat(rating));

use parseFloat()
holder.ratingbar.setRating(Float.parseFloat(rating));
inplace of
holder.ratingbar.setRating(Float.valueOf(rating));

I'm not sure where you are getting the value of rating. But it is attempting to parse that value of string to Float that is throwing your error.
String rating = recipelist.get(position).getRatings();
Also check that the string is not empty.
// if(rating!=null && rating.trim().length() > 0)
if(rating!=null && !rating.isEmpty() && rating.trim().length() > 0)
{
try{
holder.ratingbar.setRating(Float.valueOf(rating));
}
catch (NumberFormatException e){
// TO DO
}
}
Firstly examine the value of rating (log it) and if you are getting a float in there I suggest having a look at this answer:
float f = Float.valueOf("> 12.4N-m/kg.".replaceAll("[^\\d.]+|\\.(?!\\d)", ""));

response of this method should be float String rating = recipelist.get(position).getRatings();or to get it in String you have to convert it into String by using toString();thats why you are getting NumberFormatException

App is keep crashing while accessing the listview

In my app I'm showing data in listview. While scrolling through listview my app is crashing. What changes should I make?
as given in the error my RecipeListFragment.java file is:
public class RecipeListFragment extends Fragment {
MyDatabase db;
boolean isfav = false;
Context context;
ListView lvrecipe;
ArrayList<RecipePojo> recipelist = new ArrayList<RecipePojo>();
LinearLayout ll;
DisplayImageOptions options;
private ProgressDialog progress;
int position;
String recipeid;
int checkcounter = 0;
private Custom_Adapter adapter;
public RecipeListFragment() {
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_recipe_list_actvity, container, false);
context = getActivity();
lvrecipe = (ListView) rootView.findViewById(R.id.lvrecipe);
// adView = (MoPubView)rootView. findViewById(R.id.mopub_sample_ad);
new getrecipe().execute();
db = new MyDatabase(getActivity());
// recipelist = DataManager.recipelist;
position = DataManager.selectedposition;
adapter = new Custom_Adapter(getActivity());
adapter.notifyDataSetChanged();
lvrecipe.setAdapter(adapter);
/* if(recipeid!=null){
checkcounter = db.checkrecipefav(recipeid);
}
if (checkcounter > 0) {
isfav = true;
} else {
isfav = false;
}
db.close();*/
lvrecipe.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
DataManager.selectedposition = position;
Intent i = new Intent(getActivity(), RecipeDescription.class);
i.putExtra("cusinename", DataManager.cusinename);
startActivity(i);
getActivity().finish();
}
});
// adddisplay();
return rootView;
}
#Override
public void onResume() {
super.onResume();
}
public class Custom_Adapter extends BaseAdapter {
private LayoutInflater mInflater;
public Custom_Adapter(Context c) {
mInflater = LayoutInflater.from(c);
}
#Override
public int getCount() {
if (recipelist != null) {
return recipelist.size();
} else {
return 0;
}
}
#Override
public Object getItem(int position) {
if (recipelist != null) {
return recipelist.get(position);
} else {
return 0;
}
}
#Override
public long getItemId(int position) {
if (recipelist != null) {
return position;
} else {
return 0;
}
}
#SuppressWarnings("deprecation")
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.recipelist, null);
holder = new ViewHolder();
holder.txttile = (TextView) convertView.findViewById(R.id.txttile);
holder.imgrecipe = (ImageView) convertView.findViewById(R.id.imgrecipe);
holder.fav_unfav = (ImageView) convertView.findViewById(R.id.fav_unfav);
holder.ratingbar = (RatingBar) convertView.findViewById(R.id.ratingbar);
holder.txtduration = (TextView) convertView.findViewById(R.id.txtduration);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
if (recipelist != null) {
recipeid = recipelist.get(position).getRecipeid();
checkcounter = db.checkrecipefav(recipeid);
}
if (checkcounter > 0) {
isfav = true;
} else {
isfav = false;
}
db.close();
if (isfav) {
holder.fav_unfav.setImageResource(R.drawable.favourite);
} else {
holder.fav_unfav.setImageResource(R.drawable.favourites);
}
Typeface face1 = Typeface.createFromAsset(getActivity().getAssets(), "sinkin_sans_300_light.ttf");
Typeface face2 = Typeface.createFromAsset(getActivity().getAssets(), "sinkin_sans_400_regular.ttf");
holder.txttile.setTypeface(face2);
holder.txtduration.setTypeface(face1);
holder.txttile.setText(recipelist.get(position).getRecipename());
try {
String[] prep = recipelist.get(position).getPrep_time().split(" ");
String[] cook = recipelist.get(position).getCooking_time().split(" ");
int totalTime = Integer.parseInt(prep[0]) + Integer.parseInt(cook[0]);
holder.txtduration.setText(""+totalTime+" min");
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
String url = DataManager.photourl + "recipe/" + recipelist.get(position).getRecipeid() + ".jpg";
try {
url = URLDecoder.decode(url, "UTF-8");
url = url.replaceAll(" ", "%20");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
if (recipelist.get(position).getVideo_link().equals("none")) {
// holder.imgvideo.setVisibility(View.GONE);
}
String rating = recipelist.get(position).getRatings();
if (rating != null && rating.trim().length() > 0) {
holder.ratingbar.setRating(Float.valueOf(rating));
}
//holder.imgrecipe.setImage(url,getResources().getDrawable(R.drawable.cusine));
if (holder.imgrecipe != null) {
if (url != null && url.trim().length() > 0) {
//final ProgressBar pbar = holder.pbar;
final ImageView imageView = holder.imgrecipe;
//final RelativeLayout imgRL = holder.imageRL;
ImageLoader.getInstance().displayImage(url, holder.imgrecipe, options, new SimpleImageLoadingListener() {
#Override
public void onLoadingComplete(String imageUri,
View view, Bitmap loadedImage) {
super.onLoadingComplete(imageUri, view, loadedImage);
imageView.setAdjustViewBounds(true);
}
#Override
public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
super.onLoadingFailed(imageUri, view, failReason);
}
#Override
public void onLoadingStarted(String imageUri, View view) {
super.onLoadingStarted(imageUri, view);
}
});
} else {
}
}
return convertView;
}
class ViewHolder {
TextView txttile, txtduration;
ImageView imgrecipe;
ImageView fav_unfav;
RatingBar ratingbar;
}
}
public class getrecipe extends AsyncTask<String, Void, String> {
boolean response = false;
#Override
protected void onPreExecute() {
//progress = ProgressDialog.show(context, "Getting Data...","Please wait....");
progress = new ProgressDialog(getActivity());
progress.setMessage("Please wait....");
progress.show();
}
#Override
protected String doInBackground(String... params) {
response = APIManager.getrecipebycusine(DataManager.CUISINE_ID);
return "";
}
#Override
protected void onPostExecute(String result) {
progress.cancel();
if (response) {
if (DataManager.status.equalsIgnoreCase("1")) {
recipelist = DataManager.recipelist;
adapter.notifyDataSetChanged();
//Intent i = new Intent(getActivity(),RecipeListActvity.class);
//startActivity(i);
} else {
connectionerror();
}
} else {
connectionerror();
}
}
#Override
protected void onProgressUpdate(Void... values) {
}
}
public void alert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity());
alertDialog.setTitle("No Recipe!");
alertDialog.setMessage("No Recipe for this Cusine");
alertDialog.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
alertDialog.show();
}
private static class AnimateFirstDisplayListener extends SimpleImageLoadingListener {
static final List<String> displayedImages = Collections.synchronizedList(new LinkedList<String>());
#Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
if (loadedImage != null) {
ImageView imageView = (ImageView) view;
boolean firstDisplay = !displayedImages.contains(imageUri);
if (firstDisplay) {
FadeInBitmapDisplayer.animate(imageView, 500);
displayedImages.add(imageUri);
}
}
}
}
public void connectionerror() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity());
alertDialog.setTitle("Error!");
alertDialog.setMessage("Connection Lost ! Try Again");
alertDialog.setPositiveButton("Retry",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
new getrecipe().execute();
}
});
alertDialog.show();
}}
The errors that are showing in Crashlytics is:
Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources$Theme android.content.Context.getTheme()' on a null object reference
at android.app.AlertDialog.resolveDialogTheme(AlertDialog.java:154)
at android.app.AlertDialog$Builder.<init>(AlertDialog.java:379)
at com.raccoonfinger.salad.RecipeListFragment.connectionerror(RecipeListFragment.java:381)
at com.raccoonfinger.salad.RecipeListFragment$getrecipe.onPostExecute(RecipeListFragment.java:335)
at com.raccoonfinger.salad.RecipeListFragment$getrecipe.onPostExecute(RecipeListFragment.java:296)
at android.os.AsyncTask.finish(AsyncTask.java:632)
at android.os.AsyncTask.access$600(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5312)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696)

Please do not use getActivity() directly in Fragment because sometimes it returns null..
Always pass activity as a parameter in constructor..!!
Please use below method to create your Fragment and use activity reference instead of getActivity()..
public static AboutFragment newInstance(Activity activity) {
AboutFragment aboutFragment = new AboutFragment();
aboutFragment.mActivity = activity;
return aboutFragment;
}
Hope it will help.
Thanks ..!!