Android GridView show detailed item

Android GridView show detailed item - android

I got a source code about GridView.
But, I confused why some code were error.
These are the code. I got error on OnClick Method in MainActivity. Is here anyone help me? Thanks
public void onItemClick(AdapterView <? > AdapterView, View View, int Int, long Long) {
AdapterView = ((ImageItem) imageItems.get(Int)).getTitle();
toDetail(Int, AdapterView);
}
});
I want to each item that when it clicked shown the detailed image and text. I also get code like this but when I clicked "GingerBread" item, it goes to first item ("Astro")
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
ImageItem item = (ImageItem) parent.getItemAtPosition(position);
//Create intent
Intent intent = new Intent(getApplicationContext(), DetailActivity.class);
// intent.putExtra("android.intent.extra.TEXT", Integer.parseInt(getIntent().getStringExtra("android.intent.extra.TEXT")));
intent.putExtra("title", item.getTitle());
//Start details activity
startActivity(intent);
overridePendingTransition(R.anim.home_detail_entry, R.anim.home_detail_exit);
}
});
MainActivity.java
package com.acer.gridview;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;
import java.util.ArrayList;
public class MainActivity extends Activity {
public static String[] bitmapName = {
"Astro", "Bender", "Cupcake", "Donut", "Eclair",
"Froyo", "Gingerbread", "HoneyComb"
};
public static int[] bitmapId = {
R.drawable.Astro, R.drawable.Bender, R.drawable.Cupcake, R.drawable.Eclair,
R.drawable.Froyo, R.drawable.Gingerbread, R.drawable.HoneyComb
};
private GridViewAdapter gridAdapter;
private GridView gridView;
ArrayList < ImageItem > imageItems;
private ArrayList < ImageItem > getData() {
imageItems = new ArrayList();
BitmapFactory.Options localOptions = new BitmapFactory.Options();
localOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;
int i = 0;
for (;;) {
if (i > 7) {
return imageItems;
}
Bitmap localBitmap = BitmapFactory.decodeResource(getResources(), bitmapId[i], localOptions);
imageItems.add(new ImageItem(localBitmap, bitmapName[i]));
i += 1;
}
}
#
Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image_grid);
gridView = (GridView) findViewById(R.id.gridView);
gridAdapter = new GridViewAdapter(this, R.layout.row_grid, getData());
gridView.setAdapter(gridAdapter);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView <? > AdapterView, View View, int Int, long Long) {
////////////This code shown error///////////////////
AdapterView = ((ImageItem) imageItems.get(Int)).getTitle();
toDetail(Int, AdapterView);
////////////This code shown error///////////////////
}
});
}
public void toDetail(int Int, String String) {
Intent localIntent = new Intent(this, DetailActivity.class);
localIntent.putExtra("android.intent.extra.TEXT", Integer.toString(Int));
localIntent.putExtra("title", String);
startActivity(localIntent);
}
/**
* A placeholder fragment containing a simple view.
*/
private boolean ActionBar(final Intent aIntent) {
try {
startActivity(aIntent);
return true;
} catch (ActivityNotFoundException e) {
return false;
}
}
public void showDialog() {
LayoutInflater inflater = getLayoutInflater();
View localView = inflater.inflate(R.layout.help_dialog, null);
((ImageView) localView.findViewById(R.id.imageView1)).setImageResource(R.drawable.makhrojulhuruf);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(localView);
builder.show();
}
#
Override
public boolean onCreateOptionsMenu(Menu menu) {}
#
Override
public boolean onOptionsItemSelected(MenuItem item) {
}
}
GridViewAdapter.java
package com.acer.gridview;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
/**
* Created by Acer on 08/02/2016.
*/
public class GridViewAdapter extends ArrayAdapter<ImageItem> {
private Context context;
private int layoutResourceId;
private ArrayList<ImageItem> data = new ArrayList();
public GridViewAdapter(Context context, int layoutResourceId, ArrayList<ImageItem> data) {
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
ViewHolder holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new ViewHolder();
holder.imageTitle = (TextView) row.findViewById(R.id.text);
holder.image = (ImageView) row.findViewById(R.id.image);
row.setTag(holder);
} else {
holder = (ViewHolder) row.getTag();
}
ImageItem item = (ImageItem) data.get(position);
holder.imageTitle.setText(item.getTitle());
holder.image.setImageBitmap(item.getImage());
return row;
}
static class ViewHolder {
TextView imageTitle;
ImageView image;
}
}
ImageItem.java
package com.acer.gridview;
import android.graphics.Bitmap;
/**
* Created by Acer on 08/02/2016.
*/
public class ImageItem {
private Bitmap image;
private String title;
public ImageItem(Bitmap Bitmap, String String)
{
setImage(Bitmap);
setTitle(String);
}
public Bitmap getImage()
{
return this.image;
}
public String getTitle()
{
return this.title;
}
public void setImage(Bitmap Bitmap)
{
this.image = Bitmap;
}
public void setTitle(String String)
{
this.title = String;
}
}

Related

Array size in GetChild method is wrong in ExpandableListView

I implemented ExpandableListView using this example, the only 2 diff from my code and example code is: I implemented on dialog box instead of activity and 2nd diff is my data is coming from SQLite.
So, I successfully implemented ExpandableListView and data is coming on perfect position according to group/child pos also. There is no issue in the code.
Now, later I implemented search functionality in the same ExpandableListAdapter.
Problem: Suppose, I want to search Electricity, (which is twice in my case also "E" is matching in more than one time) So, when I search "E", it shows me a list of matches with "E" and that is good, but when I do the second letter "L" it crashes on getChild method and tells me that index is "1" and size is "1" I know it should be 2, but I don't know how is it possible? Because the same getChild method works when it shows me the ExpandableList!!
I tried to debug also, that main Group size is coming right for the first time, but later it remains zero (0).
See:
Code:
Dialog Class:
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.text.Editable;
import android.text.InputFilter;
import android.text.TextWatcher;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ExpandableListView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import androidx.appcompat.app.AlertDialog;
import androidx.recyclerview.widget.DefaultItemAnimator;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.tekitsolutions.remindme.Adapter.CustomSpinnerAdapter;
import com.tekitsolutions.remindme.Adapter.CustomSpinnerClass;
import com.tekitsolutions.remindme.Adapter.DialogListAdapter;
import com.tekitsolutions.remindme.Adapter.ExpandableCategoryAdapter;
import com.tekitsolutions.remindme.Interface.CategoryListener;
import com.tekitsolutions.remindme.Interface.HamburgerMenuListener;
import com.tekitsolutions.remindme.Interface.ResultListener;
import com.tekitsolutions.remindme.Model.CategoryHeader;
import com.tekitsolutions.remindme.Model.CategoryResponse;
import com.tekitsolutions.remindme.Model.CustomCategory;
import com.tekitsolutions.remindme.Model.General;
import com.tekitsolutions.remindme.Model.ProvidersInfo;
import com.tekitsolutions.remindme.Model.Reminder;
import com.tekitsolutions.remindme.R;
import com.tekitsolutions.remindme.RestApi.ApiClient;
import com.tekitsolutions.remindme.RestApi.ApiInterface;
import com.tekitsolutions.remindme.Sql.DatabaseAdapter;
import java.util.ArrayList;
import java.util.List;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import static android.content.Context.MODE_PRIVATE;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.CUSTOM_CATEGORY_ID;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.PROVIDER_CATEGORY_ID;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.PROVIDER_ID;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_ACCOUNT_NUMBER;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_ALIAS_NAME;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_ID;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_OWNER_NAME;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_PROVIDER_ID;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_PROVIDER_NAME;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_PROVIDER_NUMBER;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.REMINDER_CATEGORY_SUB_PROVIDER_ID;
import static com.tekitsolutions.remindme.Sql.DataBaseConstant.SUB_PROVIDER_ID;
import static com.tekitsolutions.remindme.Utils.CommonUtils.CUSTOM_HEADER;
import static com.tekitsolutions.remindme.Utils.CommonUtils.ELECTRICITY_BILL;
import static com.tekitsolutions.remindme.Utils.CommonUtils.ELECTRICITY_BILL_ID;
import static com.tekitsolutions.remindme.Utils.CommonUtils.GAS;
import static com.tekitsolutions.remindme.Utils.CommonUtils.GAS_ID;
import static com.tekitsolutions.remindme.Utils.CommonUtils.GENERAL_HEADER;
import static com.tekitsolutions.remindme.Utils.CommonUtils.INSURANCE;
import static com.tekitsolutions.remindme.Utils.CommonUtils.INSURANCE_ID;
import static com.tekitsolutions.remindme.Utils.CommonUtils.LANDLINE;
import static com.tekitsolutions.remindme.Utils.CommonUtils.LANDLINE_ID;
import static com.tekitsolutions.remindme.Utils.CommonUtils.NO_CATEGORY;
import static com.tekitsolutions.remindme.Utils.CommonUtils.OTHER_HEADER;
import static com.tekitsolutions.remindme.Utils.CommonUtils.PHONE_NUMBER;
import static com.tekitsolutions.remindme.Utils.CommonUtils.PICK_PROVIDER_CODE;
import static com.tekitsolutions.remindme.Utils.CommonUtils.PROFILE;
import static com.tekitsolutions.remindme.Utils.CommonUtils.RESULT_FAILED;
import static com.tekitsolutions.remindme.Utils.CommonUtils.RESULT_OKAY;
import static com.tekitsolutions.remindme.Utils.CommonUtils.WATER_BILL;
import static com.tekitsolutions.remindme.Utils.CommonUtils.WATER_BILL_ID;
public class CategoryDialog extends BaseClass implements View.OnClickListener, Callback<String>, HamburgerMenuListener, ResultListener {
private static final String TAG = CategoryDialog.class.getSimpleName();
int i = 0;
private String landlineName, getProviderName, defaultName = "", phoneNum, customCategoryName, selected = "", getConsumerNum, getAccountNum, getOwnerName;
private long tempId = 0, categoryId, getCustomCategoryId, providerId, customCategoryId = 0, subProviderId;
private boolean stop = true, insurance, isEditPayment = false, isDeletedSQLite = false, isDeletedServer = false, isClicked = false;
private ExpandableCategoryAdapter expandableCategoryAdapter;
private List<CustomCategory> categories, customCategories;
private RecyclerView dialogRecyclerView;
private ExpandableListView expandableListView;
private DatabaseAdapter dbAdapter;
private Context context;
private SharedPreferences profilePreference;
private View promptsView;
private CustomCategory customCategory;
private List<Reminder> dialogListItems;
private ImageView info, search, close;
private DialogListAdapter dialogListAdapter;
private Activity activity;
private ProviderDialog providerDialog;
private TextView categoryToolbar, title, inputInsuranceProvider, textViewError, inputBillProvider, errorView, information, subProviderError, providerError, customProviderError, consumerError, ownerError;
private EditText searchText, userInput, inputConsumerNumber, name, inputAccountNumber, inputCustomProvider;
private ProvidersInfo providersInfo;
private AlertDialog informationDialog, mDialog;
private CategoryListener categoryListener;
private General provider, subProvider;
private RelativeLayout relativeProvider, subProviderLayout, accountLayout, customLayout;
private LinearLayout spinnerLayout;
private List<General> mainInsuranceList = new ArrayList<>();
private CustomSpinnerAdapter spinnerAdapter;
private CustomSpinnerClass spinInsuranceList;
private ArrayList<CategoryHeader> headerArrayList = new ArrayList<CategoryHeader>();
private CategoryHeader categoryHeader;
public CategoryDialog(Context context, Activity activity) {
super(context, activity);
this.activity = activity;
this.context = context;
}
private void init() {
categories = new ArrayList<>();
customCategories = new ArrayList<>();
dbAdapter = RemindMe.getInstance().adapter;
search = promptsView.findViewById(R.id.search);
close = promptsView.findViewById(R.id.close);
categoryToolbar = promptsView.findViewById(R.id.category_toolbar);
searchText = promptsView.findViewById(R.id.search_text);
dialogListItems = new ArrayList<>();
profilePreference = context.getSharedPreferences(PROFILE, MODE_PRIVATE);
providerDialog = new ProviderDialog(context);
providerDialog.setResultListener(this);
getDataFromSharedPref();
}
private void search() {
searchText.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) {
expandableCategoryAdapter.filterData(s.toString());
if (count == 0) {
if (headerArrayList.size() == 0) {
loadSomeData();
}
expandAll();
}
}
#Override
public void afterTextChanged(Editable s) {
}
});
}
private void loadSomeData() {
categoryHeader = new CategoryHeader(GENERAL_HEADER, categories);
headerArrayList.add(categoryHeader);
categoryHeader = new CategoryHeader(OTHER_HEADER, categories);
headerArrayList.add(categoryHeader);
categoryHeader = new CategoryHeader(CUSTOM_HEADER, customCategories);
headerArrayList.add(categoryHeader);
}
public void setCategoryListener(CategoryListener listener) {
this.categoryListener = listener;
}
private void setClickListener() {
search.setOnClickListener(this);
close.setOnClickListener(this);
}
public void showCategoryDialog() {
LayoutInflater li = LayoutInflater.from(context);
promptsView = li.inflate(R.layout.row_category_dialog_layout, null);
init();
findViewById();
setClickListener();
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context);
alertDialogBuilder.setView(promptsView);
alertDialogBuilder.setPositiveButton(context.getString(R.string.add), null);
alertDialogBuilder.setNegativeButton(context.getString(R.string.cancel), null);
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.setCancelable(false);
recyclerView();
search();
mDialog = alertDialogBuilder.create();
mDialog.setCancelable(false);
mDialog.setOnShowListener(new DialogInterface.OnShowListener() {
#Override
public void onShow(DialogInterface dialog) {
Button button = ((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE);
Button buttonNegative = ((AlertDialog) dialog).getButton(AlertDialog.BUTTON_NEGATIVE);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
isEditPayment = false;
showDialogBox(0);
}
});
buttonNegative.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
}
});
}
});
mDialog.show();
}
private void findViewById() {
expandableListView = promptsView.findViewById(R.id.expandableList);
}
private void recyclerView() {
loadArrayListData();
expandableCategoryAdapter = new ExpandableCategoryAdapter(context, headerArrayList, this);
try {
expandableListView.setAdapter(expandableCategoryAdapter);
} catch (Exception exp) {
exp.printStackTrace();
}
}
//method to expand all groups
private void expandAll() {
int count = expandableCategoryAdapter.getGroupCount();
for (int i = 0; i < count; i++) {
expandableListView.expandGroup(i);
}
}
ExpandableListAdapter:
import android.content.Context;
import android.content.res.Resources;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import com.tekitsolutions.remindme.Interface.HamburgerMenuListener;
import com.tekitsolutions.remindme.Model.CategoryHeader;
import com.tekitsolutions.remindme.Model.CustomCategory;
import com.tekitsolutions.remindme.R;
import com.tekitsolutions.remindme.Utils.CommonUtils;
import java.util.ArrayList;
import java.util.List;
public class ExpandableCategoryAdapter extends BaseExpandableListAdapter {
private static final String TAG = ExpandableCategoryAdapter.class.getSimpleName();
private Context context;
private List<CategoryHeader> originalList;
private List<CategoryHeader> headerList;
private HamburgerMenuListener menuInterface;
public ExpandableCategoryAdapter(Context context, List<CategoryHeader> generalList, HamburgerMenuListener menuInterface) {
this.context = context;
this.headerList = new ArrayList<CategoryHeader>();
this.headerList.addAll(generalList);
this.originalList = generalList;
this.menuInterface = menuInterface;
}
#Override
public Object getChild(int groupPosition, int childPosition) {
List<CustomCategory> countryList = headerList.get(groupPosition).getCategoryList();
return countryList.get(childPosition);
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
Resources resources = context.getResources();
CustomCategory customCategory = (CustomCategory) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.row_general_list, null);
}
TextView name = convertView.findViewById(R.id.tv_category_item);
ImageView icon = convertView.findViewById(R.id.iv_category_icon);
Button logo = convertView.findViewById(R.id.iv_custom_category_icon);
ImageView hamburgerMenu = convertView.findViewById(R.id.hamburger_menu);
if (customCategory != null) {
if (customCategory.getCustCategoryName() != null) {
name.setText(customCategory.getCustCategoryName().trim());
}
if (customCategory.getIcon() != null && customCategory.getCustCategoryId() <= CommonUtils.WATER_BILL_ID) {
icon.setVisibility(View.VISIBLE);
logo.setVisibility(View.GONE);
hamburgerMenu.setVisibility(View.GONE);
icon.setImageResource(resources.getIdentifier(customCategory.getIcon(), "drawable",
context.getPackageName()));
} else {
icon.setVisibility(View.GONE);
logo.setVisibility(View.VISIBLE);
hamburgerMenu.setVisibility(View.VISIBLE);
logo.setText(customCategory.getCustCategoryName().substring(0, 1));
}
}
convertView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
menuInterface.onClickListItem(headerList.get(groupPosition).getCategoryList().get(childPosition).getCustCategoryId());
}
});
hamburgerMenu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (menuInterface != null) {
menuInterface.onClickHamburger(headerList.get(groupPosition).getCategoryList().get(childPosition).getCustCategoryId());
}
}
});
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
if (headerList.get(groupPosition).getHeaderName().equals(CommonUtils.GENERAL_HEADER)) {
return CommonUtils.LANDLINE_ID;
}
if (headerList.get(groupPosition).getHeaderName().equals(CommonUtils.OTHER_HEADER)) {
return CommonUtils.WATER_BILL_ID;
}
return headerList.get(groupPosition).getCategoryList().size();
}
#Override
public Object getGroup(int groupPosition) {
return headerList.get(groupPosition);
}
#Override
public int getGroupCount() {
return headerList.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
private void showLog(String msg) {
Log.d(TAG, msg);
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View view, ViewGroup parent) {
CategoryHeader categoryHeader = (CategoryHeader) getGroup(groupPosition);
if (view == null) {
LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = layoutInflater.inflate(R.layout.row_custom_category_list, null);
}
TextView heading = view.findViewById(R.id.header_view);
heading.setText(categoryHeader.getHeaderName().trim());
return view;
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
public void filterData(String query) {
query = query.toLowerCase();
headerList.clear();
if (query.isEmpty()) {
headerList.addAll(originalList);
} else {
for (CategoryHeader categoryHeader : originalList) {
List<CustomCategory> categoryList = categoryHeader.getCategoryList();
List<CustomCategory> newList = new ArrayList<CustomCategory>();
for (CustomCategory customCategory : categoryList) {
if (customCategory.getCustCategoryName().toLowerCase().contains(query)) {
newList.add(customCategory);
}
}
if (newList.size() > 0) {
CategoryHeader nContinent = new CategoryHeader(categoryHeader.getHeaderName(), newList);
headerList.add(nContinent);
}
}
}
notifyDataSetChanged();
}
}

Solved by adding separate arraylist according to header name. Also added field/tag in databse.
private void loadSomeData() {
List<CustomCategory> generalCategories = new ArrayList<>();
generalCategories.addAll(dbAdapter.getCategoryById(null, 0, GENERAL_HEADER));
List<CustomCategory> otherCategories = new ArrayList<>();
otherCategories.addAll(dbAdapter.getCategoryById(null, 0, OTHER_HEADER));
categoryHeader = new CategoryHeader(GENERAL_HEADER, generalCategories);
headerArrayList.add(categoryHeader);
categoryHeader = new CategoryHeader(OTHER_HEADER, otherCategories);
headerArrayList.add(categoryHeader);
categoryHeader = new CategoryHeader(CUSTOM_HEADER, customCategories);
headerArrayList.add(categoryHeader);
}

Why my listview not refresh when I press back button and come back to activity?

I'm tired already with my code. I'm writing chat application. My app consist of two activity. First activity has a listview of wich each row contain a last message which was send for the user while a second activity contain the whole conversation. In my app I used socket.io for android. My app works fine. Listview is refresh when a data is receive but when I press back button and then come back to the activity a listview not refresh itself already. In logs console I see that a data has received and "changed" method is called but listview is not refresh. What is wrong in belows code?
package com.example.seadog.fb_dialog;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Typeface;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.net.URISyntaxException;
import java.util.ArrayList;
import io.socket.client.IO;
import io.socket.client.Socket;
import io.socket.emitter.Emitter;
public class MainActivity extends Activity {
public static ArrayList arrayList = new ArrayList();
public ListView listView;
public MyBaseAdapter adapter;
public TextView textView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/*
* Get Socket.io Object
*/
SocketIO socketIo = new SocketIO();
Socket mSocket = socketIo.getSocket(); // get socket
Integer id = socketIo.getId(); // get Website ID
if(mSocket == null) {
socketIo.Connection();
mSocket = socketIo.getSocket();
mSocket.on("message", new Emitter.Listener() {
/*
* Message Listener
*/
#Override
public void call(Object... args) {
Boolean isset = false;
try {
JSONObject object = (JSONObject) args[0];
String _id = object.getString("_id");
String message = object.getString("message");
JSONObject obj = new JSONObject();
obj.put("direction", "fb-lt");
obj.put("message", message);
obj.put("date", "2017-05-29T12:15:49.245Z");
for(int i = 0; i < arrayList.size(); i++){
ListData ld = (ListData) arrayList.get(i);
String id = ld.getId();
if(_id.equals(id)){
JSONArray Data = ld.getData();
Data.put(obj);
ld.setDescription(message);
arrayList.set(i, ld);
isset = true;
Log.d("LOG", message);
}
}
if(!isset) {
JSONArray jsonArray = new JSONArray();
jsonArray.put(obj);
ListData ld = new ListData();
ld.set_id(_id);
ld.setID(1);
ld.setTitle("Klient:");
ld.setDescription(message);
ld.setData(jsonArray);
arrayList.add(ld);
}
} catch (JSONException e) {
e.printStackTrace();
}
changed();
}
});
}
/*
* Populate a listview
*/
listView = (ListView) findViewById(R.id.listView);
adapter = new MyBaseAdapter(this, arrayList);
listView.setAdapter(adapter);
/*
* OnItemClickListener
*/
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(MainActivity.this, Conversation.class);
intent.putExtra("item", position);
startActivity(intent);
TextView textView = (TextView) view.findViewById(R.id.descitem);
textView.setTypeface(null, Typeface.NORMAL);
}
});
textView = (TextView) findViewById(R.id.count);
}
private void changed() {
runOnUiThread(new Runnable() {
#Override
public void run() {
adapter.notifyDataSetChanged();
Log.d("LOG:", "adapter refresh");
}
});
}
}
MyBaseAdapter Class:
package com.example.seadog.fb_dialog;
import android.content.Context;
import android.graphics.Typeface;
import android.util.Log;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import java.util.ArrayList;
public class MyBaseAdapter extends BaseAdapter {
Context context;
ArrayList<ListData> items = new ArrayList();
LayoutInflater inflater;
int id = 0;
public MyBaseAdapter(Context context, ArrayList items) {
this.context = context;
this.items = items;
inflater = LayoutInflater.from(this.context);
}
#Override
public int getCount() {
return items.size();
}
#Override
public ListData getItem(int position) {
return items.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.list_item, parent, false);
mViewHolder = new MyViewHolder(convertView);
convertView.setTag(mViewHolder);
} else {
mViewHolder = (MyViewHolder) convertView.getTag();
}
ListData currentListData = getItem(position);
id = position > 0 ? getItem(position - 1).getID() : 0;
mViewHolder.Title.setText(currentListData.getTitle());
mViewHolder.Desc.setText(currentListData.getDescription());
if(1==1){
mViewHolder.Title.setVisibility(View.GONE);
}else {
if (id != currentListData.getID()) {
mViewHolder.Title.setVisibility(View.VISIBLE);
} else {
mViewHolder.Title.setVisibility(View.GONE);
}
}
return convertView;
}
private class MyViewHolder {
TextView Title, Desc;
public MyViewHolder(View item) {
Title = (TextView) item.findViewById(R.id.txtitem);
Desc = (TextView) item.findViewById(R.id.descitem);
Typeface title = Typeface.createFromAsset(context.getAssets(), "fonts/DroidSans.ttf");
Title.setTypeface(title);
Typeface desc = Typeface.createFromAsset(context.getAssets(), "fonts/DroidSans.ttf");
Desc.setTypeface(desc, Typeface.BOLD);
}
}
}

#Override
protected void onRestart() {
Intent intentBack = new Intent(getApplicationContext(),MainActivity.class);
startActivity(intentBack);
super.onRestart();
}

you did not have any callback after you back to this activity .
You can either override onResume() method or startActivityForResult and do something in the onAcitvityForResult method.

Android ListView SearchView

I created an ListView which is filled by SQLite Database.
In my App you can add books to a database and you can view the booklist in the BookDataListActivity
Now I would like to implement a SearchView to filter the books. I used this Video https://www.youtube.com/watch?v=c9yC8XGaSv4&list=PLfBjz1j1UV9kdwpvU1YGsjKoNxOtoKTCs&index=1
But it doesnt work.
Following my code. Hopefully you can help me.
package com.kasutwentyseven.gui4selfshelf.Books;
import android.app.Activity;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;
import com.kasutwentyseven.gui4selfshelf.R;
public class BookDataListActivity extends Activity {
public ListView booklistView;
public SearchView searchView;
public SQLiteDatabase sqLiteDatabaseBooks;
public BookDBHelper bookDBHelper;
public Cursor cursor2;
public BookListDataAdapter bookListDataAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.book_data_list_layout);
Typeface myTypeface = Typeface.createFromAsset(getAssets(), "Lobster.ttf");
TextView myTextView = (TextView) findViewById(R.id.text_yourbooks);
myTextView.setTypeface(myTypeface);
booklistView = (ListView)findViewById(R.id.book_list_view);
searchView = (SearchView) findViewById(R.id.search_bar);
bookListDataAdapter = new BookListDataAdapter(getApplicationContext(),R.layout.row_book_layout);
booklistView.setAdapter(bookListDataAdapter);
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String text) {
return false;
}
#Override
public boolean onQueryTextChange(String text) {
bookListDataAdapter.getFilter().filter(text);
return false;
}
});
bookDBHelper = new BookDBHelper(getApplicationContext());
sqLiteDatabaseBooks = bookDBHelper.getReadableDatabase();
cursor2 = bookDBHelper.getInformations(sqLiteDatabaseBooks);
if(cursor2.moveToFirst())
{
do{
String booktitle, bookauthor,bookdate, bookrating, bookshelf;
booktitle = cursor2.getString(0);
bookauthor = cursor2.getString(1);
bookdate = cursor2.getString(2);
bookrating = cursor2.getString(3);
bookshelf = cursor2.getString(4);
BookDataProvider bookDataProvider = new BookDataProvider(booktitle, bookauthor, bookdate, bookrating, bookshelf);
bookListDataAdapter.add(bookDataProvider);
}while(cursor2.moveToNext());
}
booklistView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(getBaseContext(), parent.getItemAtPosition(position) + " is selected", Toast.LENGTH_LONG).show();
}
});
}
}
How do I implement a Filter?
EDIT: As asked the BookListAdapter
package com.kasutwentyseven.gui4selfshelf.Books;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Filterable;
import android.widget.TextView;
import com.kasutwentyseven.gui4selfshelf.R;
import java.util.ArrayList;
import java.util.List;
public class BookListDataAdapter extends ArrayAdapter implements Filterable{
List booklist = new ArrayList();
public BookListDataAdapter(Context context,int resource) {
super(context, resource);
}
static class BookLayoutHandler {
TextView BOOKTITLE, BOOKAUTHOR, BOOKDATE, BOOKRATING, BOOKSHELF;
}
#Override
public void add (Object object){
super.add(object);
booklist.add(object);
}
#Override
public int getCount() {
return booklist.size();
}
#Override
public Object getItem(int position) {
return booklist.get(position);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View row1= convertView;
BookLayoutHandler bookLayoutHandler;
if(row1 == null){
LayoutInflater layoutInflater = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row1 = layoutInflater.inflate(R.layout.row_book_layout, parent, false);
bookLayoutHandler = new BookLayoutHandler();
bookLayoutHandler.BOOKTITLE = (TextView) row1.findViewById(R.id.text_book_title);
bookLayoutHandler.BOOKAUTHOR = (TextView) row1.findViewById(R.id.text_book_author);
bookLayoutHandler.BOOKDATE = (TextView) row1.findViewById(R.id.text_book_date);
bookLayoutHandler.BOOKRATING = (TextView) row1.findViewById(R.id.text_book_rating);
bookLayoutHandler.BOOKSHELF = (TextView) row1.findViewById(R.id.text_book_shelf);
row1.setTag(bookLayoutHandler);
}else{
bookLayoutHandler = (BookLayoutHandler) row1.getTag();
}
BookDataProvider bookDataProvider = (BookDataProvider) this.getItem(position);
bookLayoutHandler.BOOKTITLE.setText(bookDataProvider.getBooktitle());
bookLayoutHandler.BOOKAUTHOR.setText(bookDataProvider.getBookauthor());
bookLayoutHandler.BOOKDATE.setText(bookDataProvider.getBookdate());
bookLayoutHandler.BOOKRATING.setText(bookDataProvider.getBookrating());
bookLayoutHandler.BOOKSHELF.setText(bookDataProvider.getBookshelf());
return row1;
}
}

Android fragment optimization

I am trying to develop the master-child page concept using master-detail flow of Android but it comes to the execution , the design is vulnerable to the critics about the poor performance. Would you please tell me some guidelines to increase the performance besudes loading bitmaps with options ?
The below is my code for fragment
import java.util.ArrayList;
import java.util.List;
import com.aaa.demo.asynctask.ResubmitOrder;
import com.aaa.demo.util.*;
import android.os.Bundle;
import android.content.Context;
import android.database.Cursor;
import android.support.v4.app.*;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
public class MoreActivity extends Fragment
{
private Bundle parameter;
private FileManager fileMan;
private SalesOrderRetransmitDbAdapter soDbRetransmitHelper;
public class RecordAdapter extends BaseAdapter
{
Context context;
private List<String> data;
RecordAdapter(List<String> data, Context context)
{
this.data = data;
this.context = context;
}
public int getCount()
{
return data.size();
}
public Object getItem(int position)
{
return data.get(position);
}
public long getItemId(int position)
{
return position;
}
public View getView(final int position, View convertView, ViewGroup parent)
{
View v = convertView;
if (v == null)
{
LayoutInflater vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.more_item, null);
}
final String item = data.get(position);
ImageView imageView = (ImageView) v.findViewById(R.id.more_item);
imageView.setImageDrawable(FileUtil.readImage(context, item + ".png"));
imageView.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
if(item.equalsIgnoreCase("more_update"))
{
((ActivityInTab) getActivity()).switchToFragment(new UpdateContentActivity());
Runtime.getRuntime().gc();
}
else if(item.equalsIgnoreCase("more_building"))
{
parameter = new Bundle();
parameter.putString("salesid", MainActivity.useridStatic);
Fragment s = new EOrderSystemBuildList();
s.setArguments(parameter);
((ActivityInTab) getActivity()).switchToFragment(s);
}
else if(item.equalsIgnoreCase("more_qc"))
{
parameter = new Bundle();
parameter.putString("salesid", MainActivity.useridStatic);
Fragment s = new EOrderList();
s.setArguments(parameter);
((ActivityInTab) getActivity()).switchToFragment(s);
}
else if(item.equalsIgnoreCase("more_password"))
{
parameter = new Bundle();
parameter.putString("salesid", MainActivity.useridStatic );
Fragment s = new EOrderChangePassword();
s.setArguments(parameter);
((ActivityInTab) getActivity()).switchToFragment(s);
}
else if(item.equalsIgnoreCase("more_logout"))
{
getActivity().finish();
Runtime.getRuntime().gc();
}
else if(item.equalsIgnoreCase("more_resubmit"))
{
ResubmitOrder resubmit = new ResubmitOrder(getActivity());
resubmit.execute(MainActivity.useridStatic + "|" + MainActivity.isFollowup);
}
}
});
return v;
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
final View v = inflater.inflate(R.layout.activity_more, container, false);
ArrayList<String> records = new ArrayList<String>();
records.add("more_building");
records.add("more_qc");
records.add("more_password");
records.add("more_logout");
records.add("more_update");
fileMan = new FileManager();
int count = fileMan.loadRecordRecursiveCount("SV_recordings","sales_recording");
Log.d("file count " , String.valueOf(count));
soDbRetransmitHelper= new SalesOrderRetransmitDbAdapter(getActivity());
soDbRetransmitHelper.open();
Cursor bu = soDbRetransmitHelper.fetchAllUnSubmitOrder(MainActivity.useridStatic);
bu.moveToFirst();
int data = bu.getCount();
Log.d("data count " , String.valueOf(data));
if(count > 0 || data > 0 ){
records.add("more_resubmit");
}
bu.close();
soDbRetransmitHelper.close();
GridView gridView = (GridView) v.findViewById(R.id.more_gridview);
gridView.setAdapter(new RecordAdapter(records, getActivity()));
return v;
}
}

Slow Application performance

I have developed a Contacts application. It does everything that a normal contacts application should does. There is always a chance of improvement. I had noticed in Android Emulator that loading for contact images starts when user has settled, he has scrolled the contact list to the area where there are chances are good that he would get contact he is searching for. So, I tried to implement the same thing on my app copy. I have implemented it. Its running very very slow. As I presume, I believe that application is running the thread multiple time even if it has retrieved the image which leads to big lagging. I am aware of the ASync task but just out of curiosity and to check whether it can be done, I don't wish to implement it here. Here is the source code for MainActivity.
package com.example.contact;
import java.io.InputStream;
import java.util.ArrayList;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Contacts;
import android.app.ListActivity;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.AbsListView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
public class MainActivity extends ListActivity {
ListView listview;
private boolean mPaused;
private MyAdapter mAdapter;
private View view;
private boolean running = false;
final private ArrayList<String> con_ids = new ArrayList<String>();
private Context context;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
listview = getListView();
context = this;
Cursor c = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,
null,
null,
null,
ContactsContract.Contacts.DISPLAY_NAME+" ASC");
if(c!=null)
{
for(c.moveToFirst();!c.isAfterLast();c.moveToNext()){
con_ids.add(c.getString(c.getColumnIndex(ContactsContract.Contacts._ID)));
}
}
mAdapter = new MyAdapter(this, android.R.layout.simple_list_item_1, con_ids);
listview.setAdapter(mAdapter);
listview.setOnScrollListener(makeScrollListener());
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public void setEnabled(boolean enabled) {
mPaused = !enabled;
}
private AbsListView.OnScrollListener makeScrollListener() {
return new AbsListView.OnScrollListener() {
#Override
public void onScrollStateChanged(AbsListView absListView, int scrollState) {
setEnabled(scrollState != AbsListView.OnScrollListener.SCROLL_STATE_TOUCH_SCROLL);
running = false;
}
#Override
public void onScroll(AbsListView absListView, int i, int i1, int i2) {
String log = "";
Log.d(log, "Scroll First Item" + i);
Log.d(log, ""+ listview.getChildCount());
final int want = i;
running = true;
runOnUiThread(new Thread(new Runnable() {
int totalChild = listview.getChildCount();
int first = listview.getFirstVisiblePosition() - listview.getHeaderViewsCount();
int toRetrieve = want-first;
int id;
long con_id;
Bitmap thumbnail;
final ListView list = listview;
#Override
public void run() {
// TODO Auto-generated method stub
while(running)
{
if(!(toRetrieve<0||toRetrieve>=totalChild))
{
id = want+toRetrieve;
con_id = Long.valueOf(con_ids.get(id));
Uri ContactUri = ContentUris.withAppendedId(Contacts.CONTENT_URI, con_id);
InputStream stream = ContactsContract.Contacts.openContactPhotoInputStream(context.getContentResolver(), ContactUri);
thumbnail = BitmapFactory.decodeStream(stream);
if(thumbnail == null)
{
toRetrieve++;
continue;
}
else
{
View view = list.getChildAt(toRetrieve);
if(view == null)
{
toRetrieve++;
continue;
}
else
{
ImageView iamge = (ImageView) view.findViewById(R.id.contact_iamge);
iamge.setImageBitmap(thumbnail);
}
toRetrieve++;
}
}
else
{
running = false;
}
}
}
}));
}
};
}
}
Code for MyAdapter,
package com.example.contact;
import java.util.ArrayList;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Contacts;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView.FindListener;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
public class MyAdapter extends ArrayAdapter<String> {
private Context context;
private ListView listview;
private ArrayList<String> ids;
private LayoutInflater infl;
private String displayname;
private String maindetail;
private SimplifiedContact contact;
private Drawable drawable;
public MyAdapter(Context context, int ResourceId, ArrayList<String> list)
{
super(context, ResourceId, list);
this.context = context;
ids = list;
infl = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
drawable = context.getResources().getDrawable(R.drawable.person);
}
static class ViewHolder
{
public ImageView image;
public TextView display_name;
public TextView main_detail;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
contact = new SimplifiedContact(context, Long.valueOf(ids.get(position)));
if(row == null)
{
row = infl.inflate(R.layout.single_cell, parent, false);
ViewHolder viewHolder = new ViewHolder();
viewHolder.display_name =(TextView) row.findViewById(R.id.disp_name);
viewHolder.main_detail = (TextView) row.findViewById(R.id.main_detail);
viewHolder.image = (ImageView)row.findViewById(R.id.contact_iamge);
row.setTag(viewHolder);
}
ViewHolder holder = (ViewHolder) row.getTag();
holder.display_name.setText(contact.getDisplayName());
holder.main_detail.setText(contact.getMainDetail());
holder.image.setBackgroundDrawable(drawable);
return row;
}
}
I wish to know, how this lag can be reduced. Thanks in advance.

Why don't you try to take that Thread instance that you are making in runOnUiThread and put It in a field, initializing It in the onCreate. I think that you are creating several thread instaces with no use.
public class MainActivity extends ListActivity {
ListView listview;
private boolean mPaused;
private MyAdapter mAdapter;
private View view;
private boolean running = false;
final private ArrayList<String> con_ids = new ArrayList<String>();
private Context context;
Thread uiThread;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
listview = getListView();
context = this;
Cursor c = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,
null,
null,
null,
ContactsContract.Contacts.DISPLAY_NAME+" ASC");
if(c!=null)
{
for(c.moveToFirst();!c.isAfterLast();c.moveToNext()){
con_ids.add(c.getString(c.getColumnIndex(ContactsContract.Contacts._ID)));
}
}
uiThread = new Thread(new Runnable() {
int totalChild = listview.getChildCount();
int first = listview.getFirstVisiblePosition() - listview.getHeaderViewsCount();
int toRetrieve = want-first;
int id;
long con_id;
Bitmap thumbnail;
final ListView list = listview;
#Override
public void run() {
// TODO Auto-generated method stub
while(running)
{
if(!(toRetrieve<0||toRetrieve>=totalChild))
{
id = want+toRetrieve;
con_id = Long.valueOf(con_ids.get(id));
Uri ContactUri = ContentUris.withAppendedId(Contacts.CONTENT_URI, con_id);
InputStream stream = ContactsContract.Contacts.openContactPhotoInputStream(context.getContentResolver(), ContactUri);
thumbnail = BitmapFactory.decodeStream(stream);
if(thumbnail == null)
{
toRetrieve++;
continue;
}
else
{
View view = list.getChildAt(toRetrieve);
if(view == null)
{
toRetrieve++;
continue;
}
else
{
ImageView iamge = (ImageView) view.findViewById(R.id.contact_iamge);
iamge.setImageBitmap(thumbnail);
}
toRetrieve++;
}
}
else
{
running = false;
}
}
}
});
mAdapter = new MyAdapter(this, android.R.layout.simple_list_item_1, con_ids);
listview.setAdapter(mAdapter);
listview.setOnScrollListener(makeScrollListener());
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public void setEnabled(boolean enabled) {
mPaused = !enabled;
}
private AbsListView.OnScrollListener makeScrollListener() {
return new AbsListView.OnScrollListener() {
#Override
public void onScrollStateChanged(AbsListView absListView, int scrollState) {
setEnabled(scrollState != AbsListView.OnScrollListener.SCROLL_STATE_TOUCH_SCROLL);
running = false;
}
#Override
public void onScroll(AbsListView absListView, int i, int i1, int i2) {
String log = "";
Log.d(log, "Scroll First Item" + i);
Log.d(log, ""+ listview.getChildCount());
final int want = i;
running = true;
runOnUiThread(uiThread);
}
};
}
}

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.

Android GridView show detailed item - android

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Android ListView SearchView

Android fragment optimization

Slow Application performance

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