get Variable in doInBackground Get out of AsyncTask - java

How to get Variable in doInBackground Get out of AsyncTask
Request Api url set new like and get new like and like mode
Now how to get new like and like mode out of AsyncTask for use setText
get like this from GetDataLike AsyncTask:
new GetDataLike().execute(textViewQuoteId.getText().toString());
String newLike = GetDataLike().newLike; // get like this from GetDataLike
String modeLike = GetDataLike().modeLike; // get like this from GetDataLike
textViewQuoteLike.setText("پسندیدم ("+newLike+")");
Toast.makeText(rootView.getContext(), "لایک شما برای سخن "+textViewProfileName.getText().toString()+" ثبت شد.",
Toast.LENGTH_LONG).show();
Json result example:
{"Like":{"quote_like":"27","quote_like_mode":"1"}}
QuoteArrayAdapter.java
package com.example.adapter;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.os.AsyncTask;
import android.support.annotation.Nullable;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.example.R;
import com.example.model.QuoteDataModel;
import com.example.parser.JSONParser;
import com.example.utils.Keys;
import com.squareup.picasso.Picasso;
import com.squareup.picasso.Transformation;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.List;
import static android.content.Context.CLIPBOARD_SERVICE;
public class QuoteArrayAdapter extends ArrayAdapter<QuoteDataModel> {
List<QuoteDataModel> modelList;
Context context;
private LayoutInflater mInflater;
// Constructors
public QuoteArrayAdapter(Context context, List<QuoteDataModel> objects) {
super(context, 0, objects);
this.context = context;
this.mInflater = LayoutInflater.from(context);
modelList = objects;
}
#Override
public QuoteDataModel getItem(int position) {
return modelList.get(position);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder vh;
if (convertView == null) {
View view = mInflater.inflate(R.layout.quote_row, parent, false);
vh = ViewHolder.create((RelativeLayout) view);
view.setTag(vh);
} else {
vh = (ViewHolder) convertView.getTag();
}
QuoteDataModel item = getItem(position);
vh.textViewQuoteContent.setText(item.getQuoteContent());
vh.textViewProfileName.setText(item.getProfileName());
vh.textViewQuoteLike.setText("پسندیدم ("+item.getQuoteLike()+")");
vh.textViewQuoteCopy.setText("کپی");
vh.textViewQuoteShare.setText("اشتراک");
vh.textViewQuoteId.setText(item.getQuoteId());
Picasso.with(context).load(item.getProfilePhoto()).placeholder(R.drawable.empty_profile_photo).error(R.drawable.empty_profile_photo).transform(new CircleTransform()).into(vh.imageViewProfilePhoto);
return vh.rootView;
}
private static class ViewHolder {
public final RelativeLayout rootView;
public final ImageView imageViewProfilePhoto;
public final TextView textViewQuoteContent;
public final TextView textViewProfileName;
public final TextView textViewQuoteLike;
public final TextView textViewQuoteCopy;
public final TextView textViewQuoteShare;
public final TextView textViewQuoteId;
public final TextView textViewQuoteLikeIcon;
public final TextView textViewQuoteShareIcon;
public final TextView textViewQuoteCopyIcon;
private ViewHolder(RelativeLayout rootView, ImageView imageViewProfilePhoto, TextView textViewQuoteContent, TextView textViewProfileName, TextView textViewQuoteLike, TextView textViewQuoteCopy, TextView textViewQuoteShare, TextView textViewQuoteId, TextView textViewQuoteLikeIcon, TextView textViewQuoteShareIcon, TextView textViewQuoteCopyIcon) {
this.rootView = rootView;
this.imageViewProfilePhoto = imageViewProfilePhoto;
this.textViewQuoteContent = textViewQuoteContent;
this.textViewProfileName = textViewProfileName;
this.textViewQuoteLike = textViewQuoteLike;
this.textViewQuoteCopy = textViewQuoteCopy;
this.textViewQuoteShare = textViewQuoteShare;
this.textViewQuoteId = textViewQuoteId;
this.textViewQuoteLikeIcon = textViewQuoteLikeIcon;
this.textViewQuoteShareIcon = textViewQuoteShareIcon;
this.textViewQuoteCopyIcon = textViewQuoteCopyIcon;
}
public static ViewHolder create(final RelativeLayout rootView) {
ImageView imageViewProfilePhoto = (ImageView) rootView.findViewById(R.id.imageViewProfilePhoto);
final TextView textViewQuoteContent = (TextView) rootView.findViewById(R.id.textViewQuoteContent);
final TextView textViewProfileName = (TextView) rootView.findViewById(R.id.textViewProfileName);
final TextView textViewQuoteLike = (TextView) rootView.findViewById(R.id.textViewQuoteLike);
TextView textViewQuoteCopy = (TextView) rootView.findViewById(R.id.textViewQuoteCopy);
TextView textViewQuoteShare = (TextView) rootView.findViewById(R.id.textViewQuoteShare);
final TextView textViewQuoteId = (TextView) rootView.findViewById(R.id.textViewQuoteId);
final TextView textViewQuoteLikeIcon = (TextView) rootView.findViewById(R.id.textViewQuoteLikeIcon);
final TextView textViewQuoteShareIcon = (TextView) rootView.findViewById(R.id.textViewQuoteShareIcon);
final TextView textViewQuoteCopyIcon = (TextView) rootView.findViewById(R.id.textViewQuoteCopyIcon);
textViewQuoteLike.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new GetDataLike().execute(textViewQuoteId.getText().toString());
String currentLike = textViewQuoteLike.getText().toString();
currentLike = currentLike.replace("پسندیدم (","");
currentLike = currentLike.replace(")","");
int newLike = Integer.valueOf(currentLike.toString()) + 1;
textViewQuoteLike.setText("پسندیدم ("+newLike+")");
Toast.makeText(rootView.getContext(), "لایک شما برای سخن "+textViewProfileName.getText().toString()+" ثبت شد.",
Toast.LENGTH_LONG).show();
}
});
textViewQuoteLikeIcon.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new GetDataLike().execute(textViewQuoteId.getText().toString());
String currentLike = textViewQuoteLike.getText().toString();
currentLike = currentLike.replace("پسندیدم (","");
currentLike = currentLike.replace(")","");
int newLike = Integer.valueOf(currentLike.toString()) + 1;
textViewQuoteLike.setText("پسندیدم ("+newLike+")");
Toast.makeText(rootView.getContext(), "لایک شما برای سخن "+textViewProfileName.getText().toString()+" ثبت شد.",
Toast.LENGTH_LONG).show();
}
});
Typeface font = Typeface.createFromAsset( rootView.getContext().getAssets(), "fontawesome-webfont.ttf" );
textViewQuoteLikeIcon.setTypeface(font);
textViewQuoteLikeIcon.setText(String.valueOf((char) 0xf164));
return new ViewHolder(rootView, imageViewProfilePhoto, textViewQuoteContent, textViewProfileName, textViewQuoteLike, textViewQuoteCopy, textViewQuoteShare, textViewQuoteId, textViewQuoteLikeIcon, textViewQuoteShareIcon, textViewQuoteCopyIcon);
}
}
static class GetDataLike extends AsyncTask<String, String, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Nullable
#Override
protected String doInBackground(String... params) {
String quoteId = params[0];
JSONObject jsonObject = JSONParser.getDataFromWeb("http://example.com/api-service/v1/platform_quote_like/?id="+quoteId);
try {
if (jsonObject != null) {
if(jsonObject.length() > 0) {
JSONArray array = jsonObject.getJSONArray(Keys.KEY_LIKE);
int lenArray = array.length();
if(lenArray > 0) {
for(int jIndex = 0; jIndex < lenArray; jIndex++) {
JSONObject innerObject = array.getJSONObject(jIndex);
String quote_like = innerObject.getString(Keys.KEY_QUOTE_LIKE);
String quote_like_mode = innerObject.getString(Keys.KEY_QUOTE_LIKE_Mode);
}
}
}
} else {
}
} catch (JSONException je) {
Log.i(JSONParser.TAG, "" + je.getLocalizedMessage());
}
return null;
}
#Override
protected void onPostExecute(String aVoid) {
super.onPostExecute(aVoid);
}
}
public class CircleTransform implements Transformation {
#Override
public Bitmap transform(Bitmap source) {
int size = Math.min(source.getWidth(), source.getHeight());
int x = (source.getWidth() - size) / 2;
int y = (source.getHeight() - size) / 2;
Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
if (squaredBitmap != source) {
source.recycle();
}
Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
BitmapShader shader = new BitmapShader(squaredBitmap,
BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
paint.setShader(shader);
paint.setAntiAlias(true);
float r = size / 2f;
canvas.drawCircle(r, r, r, paint);
squaredBitmap.recycle();
return bitmap;
}
#Override
public String key() {
return "circle";
}
}
}


you just have to return string from doInBackground method and in onPostExecute method you can setText.for more than one values which is in your case you should do like this
public class CollectValues{
public String quote_like;
public String quote_like_mode;}
and now in doInBackground method you should do like this
CollectValue cv = new CollectValue();
cv.quote_like=//your response;
cv.quote_like=//your response;
return cv;
and finally in onPostExecute method you should do like this
#Override
protected void onPostExecute(CollectValues cv) {
//your textview here
textview1.setText(cv.quote_like);
textview2.setText(cv.quote_like_mode);
}
this will solve your problem..

Related

ItemTouchHelper - Can't scroll RecyclerView, Swipe doesn't work

Well, at the beginning of the Implementation of ItemTouchHelper, I chose to use only the Swipe function from it. Everything worked - with the help of Swipe I could delete items in RecyclerView etc. But then I thought I'd add up-down movement so that the user could change the order in which the item appears in the list.
Then the problems began - the user can change the order in which items are displayed, but can no longer:
Scroll RecyclerView (even if changing item up-down position is disabled)
Swipe functions have stopped working - onSwiped does not return the side (ItemTouchHelper.LEFT, ItemTouchHelper.RIGHT) in which the item was swiped
I changed the View on which is trigger OnStartDragListener from _view to just ImageView and I can scroll now but there are now other problems:
Swipe works on that ImageView too - I want to be able to swipe item whereever user click on item (_view)
Swipe functions still doesn't work - onSwiped does not return the side (ItemTouchHelper.LEFT, ItemTouchHelper.RIGHT) in which the item was swiped
Video how the problem looks
FIXED
I Changed
#Override
public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
int dragFlags =
mDraggable
? ItemTouchHelper.UP
| ItemTouchHelper.DOWN
| ItemTouchHelper.START
| ItemTouchHelper.END
: 0;
if (mDraggable) {
dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
} else {
dragFlags = ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT;
}
return makeMovementFlags(dragFlags, 0);
}
To
#Override
public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
int dragFlags = 0;
int swipeFlags = 0;
if (mDraggable) {
dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
return makeMovementFlags(dragFlags, 0);
} else {
swipeFlags = ItemTouchHelper.START | ItemTouchHelper.END;
return makeMovementFlags(0, swipeFlags);
}
}
RecyclerView Adapter:
package tw.codeassist.plus;
import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.Typeface;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import androidx.core.view.MotionEventCompat;
import androidx.recyclerview.widget.RecyclerView;
import com.google.gson.Gson;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import tw.codeassist.plus.SwipeToDeleteCallback;
public class CodeAdapter extends RecyclerView.Adapter<CodeAdapter.ViewHolder> implements SwipeToDeleteCallback.ItemTouchHelperAdapter {
ArrayList<HashMap<String, Object>> _data;
Context context;
SharedPreferences snippets;
OnItemClickListener mItemClickListener;
private static final int TYPE_ITEM = 0;
//private final LayoutInflater mInflater;
private final tw.codeassist.plus.SwipeToDeleteCallback.OnStartDragListener mDragStartListener;
public CodeAdapter(
android.content.Context appCont,
ArrayList<HashMap<String, Object>> _arr,
tw.codeassist.plus.SwipeToDeleteCallback.OnStartDragListener dragListner) {
_data = _arr;
context = appCont;
mDragStartListener = dragListner;
snippets = context.getSharedPreferences("snippets", Activity.MODE_PRIVATE);
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater _inflater =
(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View _v = _inflater.inflate(R.layout.codesnippets, null);
RecyclerView.LayoutParams _lp =
new RecyclerView.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
_v.setLayoutParams(_lp);
return new ViewHolder(_v);
}
#Override
public void onBindViewHolder(ViewHolder _holder, final int _position) {
View _view = _holder.itemView;
final androidx.cardview.widget.CardView cardview1 = _view.findViewById(R.id.cardview1);
final LinearLayout main_linear = (LinearLayout) _view.findViewById(R.id.main_linear);
final LinearLayout color_linear = (LinearLayout) _view.findViewById(R.id.color_linear);
final LinearLayout linear3 = (LinearLayout) _view.findViewById(R.id.linear3);
final TextView title_txt = (TextView) _view.findViewById(R.id.title_txt);
final TextView desc_txt = (TextView) _view.findViewById(R.id.desc_txt);
title_txt.setTypeface(
Typeface.createFromAsset(context.getAssets(), "fonts/product_sans_bold.ttf"), 0);
desc_txt.setTypeface(
Typeface.createFromAsset(context.getAssets(), "fonts/product_sans_regular.ttf"), 0);
title_txt.setText(_data.get((int) _position).get("Title").toString());
desc_txt.setText(_data.get((int) _position).get("Description").toString());
color_linear.setBackgroundColor(
Color.parseColor(_data.get((int) _position).get("Color").toString()));
RecyclerView.LayoutParams _lp =
new RecyclerView.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
_view.setLayoutParams(_lp);
_view.setOnTouchListener(
new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
if (MotionEventCompat.getActionMasked(event) == MotionEvent.ACTION_DOWN) {
mDragStartListener.onStartDrag(_holder);
}
return false;
}
});
}
#Override
public int getItemCount() {
return _data.size();
}
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, ItemTouchHelperViewHolder {
public ViewHolder(View v) {
super(v);
v.setOnClickListener(this);
}
#Override
public void onClick(View v) {
if (mItemClickListener != null) {
mItemClickListener.onItemClick(v, getAdapterPosition());
}
}
#Override
public void onItemSelected() {
itemView.setBackgroundColor(Color.LTGRAY);
}
#Override
public void onItemClear() {
itemView.setBackgroundColor(0);
}
}
#Override
public void onItemDismiss(int position) {
_data.remove(position);
notifyItemRemoved(position);
}
#Override
public boolean onItemMove(int fromPosition, int toPosition) {
Log.d("onItemMove", "Log position" + fromPosition + " " + toPosition);
if (fromPosition < _data.size() && toPosition < _data.size()) {
if (fromPosition < toPosition) {
for (int i = fromPosition; i < toPosition; i++) {
Collections.swap(_data, i, i + 1);
}
} else {
for (int i = fromPosition; i > toPosition; i--) {
Collections.swap(_data, i, i - 1);
}
}
Collections.reverse(_data);
snippets.edit().putString("CodeSnippets", new Gson().toJson(this._data)).commit();
notifyItemMoved(fromPosition, toPosition);
}
return true;
}
public void showMessage(String message) {
Toast.makeText((Activity) context, message, Toast.LENGTH_SHORT).show();
}
public void updateList(ArrayList<HashMap<String, Object>> list) {
_data = list;
notifyDataSetChanged();
}
public interface OnItemClickListener {
public void onItemClick(View view, int position);
}
public void setOnItemClickListener(final OnItemClickListener mItemClickListener) {
this.mItemClickListener = mItemClickListener;
}
public void removeAt(int position) {
_data.remove(position);
notifyItemRemoved(position);
notifyItemRangeChanged(position, _data.size());
}
public interface ItemTouchHelperViewHolder {
void onItemSelected();
void onItemClear();
}
}
ItemTouchHelper Callback
package tw.codeassist.plus;
import android.app.Activity;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.GradientDrawable;
import android.os.Build;
import android.os.VibrationEffect;
import android.os.Vibrator;
import android.util.DisplayMetrics;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Toast;
import androidx.fragment.app.FragmentActivity;
import androidx.recyclerview.widget.ItemTouchHelper;
import androidx.recyclerview.widget.RecyclerView;
import com.google.gson.Gson;
public class SwipeToDeleteCallback extends ItemTouchHelper.Callback {
private CodeAdapter mAdapter;
Context context;
private SharedPreferences snippets;
private Drawable icon;
private Drawable icon2;
private GradientDrawable background; // ColorDrawable Before
boolean mDraggable = true;
public SwipeToDeleteCallback(Context con, CodeAdapter adapter, boolean canEdit) {
mAdapter = adapter;
context = con;
setDraggable(canEdit);
DisplayMetrics dm = new DisplayMetrics();
((Activity) con).getWindowManager().getDefaultDisplay().getMetrics(dm);
float densityScale = dm.density;
// DELETE ICON
Drawable dr = con.getResources().getDrawable(R.drawable.ic_delete);
Bitmap bitmap = ((BitmapDrawable) dr).getBitmap();
icon =
new BitmapDrawable(
con.getResources(),
Bitmap.createScaledBitmap(
bitmap,
(int) (150 * densityScale / 3),
(int) (150 * densityScale / 3),
true));
// COPY ICON
Drawable dr2 = con.getResources().getDrawable(R.drawable.ic_copy);
Bitmap bitmap2 = ((BitmapDrawable) dr2).getBitmap();
icon2 =
new BitmapDrawable(
con.getResources(),
Bitmap.createScaledBitmap(
bitmap2,
(int) (200 * densityScale / 3),
(int) (200 * densityScale / 3),
true));
// TO INIT THE background
int startColor = Color.WHITE;
int endColor = Color.RED;
background =
new GradientDrawable(
GradientDrawable.Orientation.LEFT_RIGHT, new int[] {startColor, endColor});
background.setCornerRadius(20);
}
#Override
public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
int dragFlags =
mDraggable
? ItemTouchHelper.UP
| ItemTouchHelper.DOWN
| ItemTouchHelper.START
| ItemTouchHelper.END
: 0;
if (mDraggable) {
dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
} else {
dragFlags = ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT;
}
return makeMovementFlags(dragFlags, 0);
}
public void setDraggable(boolean value) {
mDraggable = value;
}
#Override
public boolean isLongPressDragEnabled() {
return true;
}
#Override
public boolean onMove(
RecyclerView recyclerView,
RecyclerView.ViewHolder viewHolder,
RecyclerView.ViewHolder target) {
if (mDraggable) {
mAdapter.onItemMove(viewHolder.getAdapterPosition(), target.getAdapterPosition());
return true;
} else {
return false;
}
}
void showMessage(String message) {
Toast.makeText(((Activity) context), message, Toast.LENGTH_SHORT).show();
}
#Override
public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
int position = viewHolder.getAdapterPosition();
showMessage(String.valueOf(direction));
if (direction == 8) { // RIGHT TO LEFT
// copy
VibrateNotify(200);
String getCode = mAdapter._data.get((int) position).get("Code").toString();
CharSequence code = getCode;
LinearLayout linearSnack =
(LinearLayout) ((FragmentActivity) context).findViewById(R.id.linear1);
((ClipboardManager) context.getSystemService(context.CLIPBOARD_SERVICE))
.setPrimaryClip(ClipData.newPlainText("", code));
com.google.android.material.snackbar.Snackbar.make(
context,
linearSnack,
"Code Copied!",
com.google.android.material.snackbar.Snackbar.LENGTH_LONG)
.setAction(
"",
new View.OnClickListener() {
#Override
public void onClick(View _view) {}
})
.show();
mAdapter.notifyItemChanged(position);
} else if (direction == 4) { // 4 = LEFT TO RIGHT
// delete
mAdapter.removeAt(position);
VibrateNotify(500);
snippets = context.getSharedPreferences("snippets", context.MODE_PRIVATE);
snippets.edit().putString("CodeSnippets", new Gson().toJson(mAdapter._data)).commit();
mAdapter.notifyItemRemoved(position);
}
}
public void VibrateNotify(long duration) {
Vibrator v = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
// Vibrate for 500 milliseconds
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
v.vibrate(VibrationEffect.createOneShot(duration, VibrationEffect.EFFECT_DOUBLE_CLICK));
} else {
// deprecated in API 26
v.vibrate(duration);
}
}
#Override
public void onChildDraw(
Canvas c,
RecyclerView recyclerView,
RecyclerView.ViewHolder viewHolder,
float dX,
float dY,
int actionState,
boolean isCurrentlyActive) {
super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
View itemView = viewHolder.itemView;
int backgroundCornerOffset = 15; // so background is behind the rounded corners of itemView
int alpha = 128;
int colorGreen = Color.parseColor("#FF0000FF");
icon.setAlpha(alpha);
icon2.setAlpha(alpha);
int iconMargin = (itemView.getHeight() - icon.getIntrinsicHeight()) / 3;
int iconTop = itemView.getTop() + (itemView.getHeight() - icon.getIntrinsicHeight()) / 2;
int iconBottom = iconTop + icon.getIntrinsicHeight();
if (dX > 0) { // Swiping to the right
int iconLeft = itemView.getLeft() + iconMargin; // icon.getIntrinsicWidth()
int iconRight = iconLeft + icon.getIntrinsicWidth(); // itemView.getLeft()
icon2.setBounds(iconLeft, iconTop, iconRight, iconBottom);
int START = 0xFF90A4AE;
int END = Color.TRANSPARENT;
background =
new GradientDrawable(
GradientDrawable.Orientation.LEFT_RIGHT, new int[] {START, END});
background.setCornerRadius(20);
background.setBounds(
itemView.getLeft(),
itemView.getTop(),
itemView.getLeft() + ((int) dX) + backgroundCornerOffset,
itemView.getBottom());
} else if (dX < 0) { // Swiping to the left
int iconLeft = itemView.getRight() - iconMargin - icon.getIntrinsicWidth();
int iconRight = itemView.getRight() - iconMargin;
icon.setBounds(iconLeft, iconTop, iconRight, iconBottom);
int START = Color.TRANSPARENT;
int END = 0xFFE57373;
background =
new GradientDrawable(
GradientDrawable.Orientation.LEFT_RIGHT, new int[] {START, END});
background.setCornerRadius(20);
background.setBounds(
itemView.getRight() + ((int) dX) - backgroundCornerOffset,
itemView.getTop(),
itemView.getRight(),
itemView.getBottom());
} else { // view is unSwiped
icon.setBounds(0, 0, 0, 0);
icon2.setBounds(0, 0, 0, 0);
background.setBounds(0, 0, 0, 0);
}
background.setStroke(25, Color.TRANSPARENT);
// background.setPadding(0, paddingTop, 0, paddingBottom); //left, top, right, bottom
background.draw(c);
icon.draw(c);
icon2.draw(c);
}
public interface OnStartDragListener {
void onStartDrag(RecyclerView.ViewHolder viewHolder);
}
public interface ItemTouchHelperAdapter {
boolean onItemMove(int fromPosition, int toPosition);
void onItemDismiss(int position);
}
}
Fragment where the RecyclerView is:
package tw.codeassist.plus;
import android.animation.*;
import android.app.*;
import android.app.Activity;
import android.content.*;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.*;
import android.graphics.*;
import android.graphics.Typeface;
import android.graphics.drawable.*;
import android.media.*;
import android.net.*;
import android.os.*;
import android.text.*;
import android.text.style.*;
import android.util.*;
import android.view.*;
import android.view.View;
import android.view.View.*;
import android.view.animation.*;
import android.webkit.*;
import android.widget.*;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.annotation.*;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.*;
import androidx.recyclerview.widget.ItemTouchHelper;
import androidx.recyclerview.widget.RecyclerView;
import com.github.angads25.filepicker.*;
import com.github.dhaval2404.colorpicker.*;
import com.google.android.flexbox.*;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.zip4j.*;
import io.github.rosemoe.sora.*;
import java.io.*;
import java.text.*;
import java.util.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.regex.*;
import org.json.*;
public class TutorialsFragmentActivity extends Fragment
implements SwipeToDeleteCallback.OnStartDragListener {
private FloatingActionButton _fab;
private CodeAdapter codeAdapter;
private ArrayList<HashMap<String, Object>> dataToShow = new ArrayList<>();
public LinearLayout linear1;
private TextView textview1;
private TextView goneTxt;
private TextView editBttn;
private RecyclerView recyclerView;
private LinearLayout noCodesView;
TutorialsFragmentActivity tfa = this;
private SharedPreferences.OnSharedPreferenceChangeListener listener;
private Intent intent = new Intent();
private SharedPreferences snippets;
private SharedPreferences settings;
private ItemTouchHelper itemTouchHelper;
boolean isEditMode = false;
#NonNull
#Override
public View onCreateView(
#NonNull LayoutInflater _inflater,
#Nullable ViewGroup _container,
#Nullable Bundle _savedInstanceState) {
View _view = _inflater.inflate(R.layout.tutorials_fragment, _container, false);
initialize(_savedInstanceState, _view);
com.google.firebase.FirebaseApp.initializeApp(getContext());
initializeLogic();
return _view;
}
private void initialize(Bundle _savedInstanceState, View _view) {
_fab = _view.findViewById(R.id._fab);
settings = getContext().getSharedPreferences("settings", Activity.MODE_PRIVATE);
noCodesView = _view.findViewById(R.id.linearNoCodes);
linear1 = _view.findViewById(R.id.linear1);
goneTxt = _view.findViewById(R.id.txGone);
editBttn = _view.findViewById(R.id.edit);
textview1 = _view.findViewById(R.id.textview1);
recyclerView = _view.findViewById(R.id.recyclerView);
snippets = getContext().getSharedPreferences("snippets", Activity.MODE_PRIVATE);
listener =
new SharedPreferences.OnSharedPreferenceChangeListener() {
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
if (key.equals("CodeSnippets")) {
if (settings.getString("ShouldRefresh", "") == "true") {
itemTouchHelper.attachToRecyclerView(null);
dataToShow =
new Gson()
.fromJson(
snippets.getString("CodeSnippets", ""),
new TypeToken<
ArrayList<
HashMap<
String,
Object>>>() {}.getType());
Collections.reverse(dataToShow);
codeAdapter = new CodeAdapter(getContext(), dataToShow, tfa);
recyclerView.setAdapter(codeAdapter);
//recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
itemTouchHelper =
new ItemTouchHelper(
new SwipeToDeleteCallback(
getContext(), codeAdapter, false));
itemTouchHelper.attachToRecyclerView(recyclerView);
settings.edit().putString("ShouldRefresh", "false").commit();
} else {
}
}
}
};
snippets.registerOnSharedPreferenceChangeListener(listener);
goneTxt.setVisibility(View.INVISIBLE);
editBttn.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View _view) {
if (!isEditMode) {
isEditMode = true;
editBttn.setText("Close");
goneTxt.setText("Close");
} else {
isEditMode = false;
editBttn.setText("Edit");
goneTxt.setText("Edit");
}
itemTouchHelper.attachToRecyclerView(null);
itemTouchHelper =
new ItemTouchHelper(
new SwipeToDeleteCallback(
getContext(), codeAdapter, isEditMode));
itemTouchHelper.attachToRecyclerView(recyclerView);
}
});
_fab.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View _view) {
editBttn.setText("Edit");
goneTxt.setText("Edit");
isEditMode = false;
itemTouchHelper.attachToRecyclerView(null);
itemTouchHelper =
new ItemTouchHelper(
new SwipeToDeleteCallback(
getContext(), codeAdapter, isEditMode));
itemTouchHelper.attachToRecyclerView(recyclerView);
intent.setClass(
getContext().getApplicationContext(), AddSnippetActivity.class);
startActivity(intent);
}
});
}
#Override
public void onResume() {
}
#Override
public void onStart() {
super.onStart();
}
public void onPause() {
super.onPause();
}
private void initializeLogic() {
{
android.graphics.drawable.GradientDrawable SketchUi =
new android.graphics.drawable.GradientDrawable();
int clrs[] = {0xFFFFFFFF, 0xFFE0E0E0};
SketchUi =
new android.graphics.drawable.GradientDrawable(
android.graphics.drawable.GradientDrawable.Orientation.TOP_BOTTOM,
clrs);
linear1.setBackground(SketchUi);
}
noCodesView.setVisibility(View.GONE);
textview1.setTypeface(
Typeface.createFromAsset(getContext().getAssets(), "fonts/product_sans_bold.ttf"),
0);
dataToShow =
new Gson()
.fromJson(
snippets.getString("CodeSnippets", ""),
new TypeToken<ArrayList<HashMap<String, Object>>>() {}.getType());
Collections.reverse(dataToShow);
codeAdapter = new CodeAdapter(this.getContext(), dataToShow, this);
recyclerView.setAdapter(codeAdapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
itemTouchHelper =
new ItemTouchHelper(new SwipeToDeleteCallback(getContext(), codeAdapter, false));
itemTouchHelper.attachToRecyclerView(recyclerView);
removeScrollBar(recyclerView);
if (dataToShow.size() == 0) {
noCodesView.setVisibility(View.VISIBLE);
recyclerView.setVisibility(View.GONE);
} else {
noCodesView.setVisibility(View.GONE);
recyclerView.setVisibility(View.VISIBLE);
}
}
public void removeScrollBar(View _view) {
_view.setVerticalScrollBarEnabled(false);
_view.setHorizontalScrollBarEnabled(false);
}
#Override
public void onStartDrag(RecyclerView.ViewHolder viewHolder) {
itemTouchHelper.startDrag(viewHolder);
}
}

FIXED
I Changed
#Override
public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
int dragFlags =
mDraggable
? ItemTouchHelper.UP
| ItemTouchHelper.DOWN
| ItemTouchHelper.START
| ItemTouchHelper.END
: 0;
if (mDraggable) {
dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
} else {
dragFlags = ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT;
}
return makeMovementFlags(dragFlags, 0);
}
To
#Override
public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
int dragFlags = 0;
int swipeFlags = 0;
if (mDraggable) {
dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
return makeMovementFlags(dragFlags, 0);
} else {
swipeFlags = ItemTouchHelper.START | ItemTouchHelper.END;
return makeMovementFlags(0, swipeFlags);
}
}

recyclerview list not showing data passed through arraylist

My code was worked perfectly just before i added header image, after that listview not showing the given datas.
These are the main pages.
Can anyone help please.Any help will be appreciated.
MyRecyclerViewAdapter.java
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
public class MyRecyclerViewAdapter extends
RecyclerView.Adapter<MyRecyclerViewAdapter.DataObjectHolder> {
private static String LOG_TAG = "MyRecyclerViewAdapter";
private ArrayList<DataObject> mDataset;
private static MyClickListener myClickListener;
Context context;
private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;
String[] data;
public MyRecyclerViewAdapter(String[] data) {
this.data = data;
}
public static class DataObjectHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView desc;
ImageView image,head_img;
public DataObjectHolder(View itemView) {
super(itemView);
desc = (TextView) itemView.findViewById(R.id.description);
image = (ImageView) itemView.findViewById(R.id.image);
head_img=(ImageView) itemView.findViewById(R.id.header_img);
Log.i(LOG_TAG, "Adding Listener");
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
myClickListener.onItemClick(getPosition(), v);
}
}
public void setOnItemClickListener(MyClickListener myClickListener) {
this.myClickListener = myClickListener;
}
public MyRecyclerViewAdapter(ArrayList<DataObject> myDataset) {
this.mDataset = myDataset;
this.context=context;
}
#Override
public DataObjectHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
if(viewType==TYPE_ITEM) {
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.listview, parent, false);
//DataObjectHolder dataObjectHolder = new DataObjectHolder(view);
return new DataObjectHolder(view);
}
else if (viewType==TYPE_HEADER){
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.header, parent, false);
//DataObjectHolder dataObjectHolder = new DataObjectHolder(view);
return new DataObjectHolder(view);
}
throw new RuntimeException("there is no type that matches the type " + viewType + " + make sure your using types correctly");
}
#Override
public void onBindViewHolder(DataObjectHolder holder, int position) {
if(holder instanceof VHItem) {
holder.desc.setText(mDataset.get(position ).getDescription());
// holder.image.setText(mDataset.get(position).getImage_url());
Picasso.with(holder.image.getContext()).load(mDataset.get(position ).getImage_url()).into(holder.image);
}
else if(holder instanceof VHHeader){
holder.head_img.setImageResource(R.drawable.cam);
}
}
public void addItem(DataObject dataObj, int index) {
mDataset.add(dataObj);
notifyItemInserted(index);
}
public void deleteItem(int index) {
mDataset.remove(index);
notifyItemRemoved(index);
}
#Override
public int getItemCount() {
return (null != mDataset ? mDataset.size() + 1 : 0);
}
public interface MyClickListener {
public void onItemClick(int position, View v);
}
private class VHItem extends DataObjectHolder {
public VHItem(View itemView) {
super(itemView);
}
}
private class VHHeader extends DataObjectHolder {
public VHHeader(View itemView) {
super(itemView);
}
}
#Override
public int getItemViewType(int position) {
if (isPositionHeader(position))
return TYPE_HEADER;
return TYPE_ITEM;
}
private boolean isPositionHeader(int position) {
return position == 0;
}
private String getItem(int position) {
return data[position - 1];
}
}
Profile2Fragment.java
import android.app.Fragment;
import android.os.Bundle;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.util.ArrayList;
public class Profile2Fragment extends Fragment {
private RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
private static String LOG_TAG = "RecyclerViewActivity";
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootview = inflater.inflate(R.layout.recycler_view, container, false);
mRecyclerView = (RecyclerView) rootview.findViewById(R.id.my_recycler_view);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(getActivity());
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new MyRecyclerViewAdapter(getDataSet());
mRecyclerView.setAdapter(mAdapter);
RecyclerView.ItemDecoration itemDecoration = new DividerItemDecoration(getActivity(), LinearLayoutManager.VERTICAL);
mRecyclerView.addItemDecoration(itemDecoration);
return rootview;
}
private ArrayList<DataObject> getDataSet() {
ArrayList<DataObject> results = new ArrayList<DataObject>();
for (int index = 0; index < 1; index++) {
DataObject obj = new DataObject("Lorem Ipsum is simply\n dummy text of the", "https://mediastream.jumeirah.com/webimage/heroactual//globalassets/global/hotels-and-resorts/dubai/madinat-jumeirah/restaurants/pierchic/madinat-jumeirah-pierchic-inside-restaurant-02-hero.jpg");
results.add(obj);
obj = new DataObject("Lorem Ipsum is simply\n dummy text of the", "https://photos.smugmug.com/Portfolio/i-HBk894k/0/db7f0344/L/The%20Black%20Couches-L.jpg");
results.add(obj);
obj = new DataObject("Lorem Ipsum is simply\n dummy text of the", "http://thesmartlocal.com/images/easyblog_images/82/Pollen.jpg");
results.add(obj);
}
return results;
}
}
DataObject.java
public class DataObject {
private String description;
private String image_url;
DataObject (String text1, String text2){
description = text1;
image_url = text2;
}
public String getImage_url() {
return image_url;
}
public void setImage_url(String image_url) {
this.image_url = image_url;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
}

try to change return statement
`return new DataObjectHolder(view);
to your specific Class like return
new VHHeader(view);
and
return new VHItem(view);
in onCreateViewHolder..

setonclicklistener effect every 4th position in recycler view

/**
* Created by Prateek on 2/18/2017.
*/
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import newsee.novasyslabs.com.nodefetch.Others.CircularTransform;
import com.squareup.picasso.MemoryPolicy;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ViewHolder> {
Context mContext;
public static ArrayList <String> embed_html = new ArrayList<>();
public static ArrayList <String> channel_thumbnail = new ArrayList<>();
public static ArrayList <String> channel_title = new ArrayList<>();
public static ArrayList <String> video_title = new ArrayList<>();
public static ArrayList <String> created_time = new ArrayList<>();
public static ArrayList <Integer> android_likes = new ArrayList<>();
public static ArrayList <Integer> pf_likes = new ArrayList<>();
public static ArrayList <Integer> android_views = new ArrayList<>();
public static ArrayList <Integer> pf_views = new ArrayList<>();
public RecyclerAdapter(Context mContext){
this.mContext = mContext;
}
class ViewHolder extends RecyclerView.ViewHolder{
WebView webView;
public ImageView chlogo;
public TextView chtitle;
public TextView vidtitle;
public TextView upld_time;
public TextView show_views;
public TextView show_likes;
public ImageView mLike;
int j = 0;
public ViewHolder(View itemView) {
super(itemView);
this.mLike = (ImageView)itemView.findViewById(R.id.video_like);
this.show_views = (TextView) itemView.findViewById(R.id.video_views_count);
this.show_likes = (TextView) itemView.findViewById(R.id.likes_count);
this.webView = (WebView) itemView.findViewById(R.id.web);
this.chlogo = (ImageView) itemView.findViewById(R.id.ch_logo);
this.chtitle = (TextView) itemView.findViewById(R.id.ch_name);
this.vidtitle = (TextView) itemView.findViewById(R.id.video_title);
this.upld_time = (TextView)itemView.findViewById(R.id.ch_time);
}
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.layout_card, viewGroup, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
#Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
holder.mLike.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (holder.j==0) {
holder.mLike.setImageResource(R.drawable.liked);
CharSequence like = holder.show_likes.getText();
int new_like = Integer.parseInt((String) like) + 1;
Toast.makeText(mContext,"Liked" +new_like ,Toast.LENGTH_SHORT).show();
holder.j = 1;
} else {
holder.mLike.setImageResource(R.drawable.unlike);
CharSequence like = holder.show_likes.getText();
int new_like = Integer.parseInt((String) like) - 1;
Toast.makeText(mContext,"Unliked" +new_like,Toast.LENGTH_SHORT).show();
holder.j = 0;
}
}
});
holder.webView.getSettings().setJavaScriptEnabled(true);
holder.webView.loadData(embed_html.get(position), "text/html", "utf-8");
Picasso.with(mContext).load(channel_thumbnail.get(position)).transform(new CircularTransform()).memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE).into(holder.chlogo);
holder.chtitle.setText(channel_title.get(position));
holder.vidtitle.setText(video_title.get(position));
holder.upld_time.setText(created_time.get(position));
int and_views = android_views.get(position);
int views = pf_views.get(position);
views += and_views;
int and_likes = android_likes.get(position);
int likes = pf_likes.get(position);
likes += and_likes;
holder.show_views.setText("" + views);
holder.show_likes.setText("" + likes);
}
#Override
public int getItemCount() {
return embed_html.size();
}
}
when i am clicking then image change for 0th postion then 4,8,12.... why onclicklistener effect every 4 object in recyclerview i am changing the image resource onClick but the images changes for 4postion, 8position

I would recommend doing it this way, first in your onBindViewHolder method add this code:
holder.mLike.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
showImage(position);
}
}
});
Then create a new method in this class only:
public void showImage(int position){
if (position == 0) {
holder.imageView.setImageResource(R.drawable.medal);
}
...
}

Control over loading item in listview from server after scrolldown

I would like to stop listview after loading from server instead of moving up when I scrolldown veryfast.
I tired setFriction property also but it doesn't seem to be that much effective.
Can anybody suggest how to control this?
This is my code.
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity {
private DataListAdapter dataListAdapter;
Activity _activity;
ArrayList<DataObject> dataArrayList;
private ListView lv;
private String jsonResult;
boolean loadingMore = false;
private DataObject dataObject;
View footerView;
ProgressDialog progress;
private static final String TAG = MainActivity.class.getSimpleName();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
_activity = this;
lv = (ListView) findViewById(R.id.listView1);
dataArrayList = new ArrayList<DataObject>();
footerView = ((LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.loading_view, null, false);
if (isOnline(_activity)) {
progress = new ProgressDialog(this);
lv.setFriction(ViewConfiguration.getScrollFriction() * 0.5f);
lv.setOnScrollListener(new AbsListView.OnScrollListener() {
#Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
#Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
int lastInScreen = firstVisibleItem + visibleItemCount;
if ((lastInScreen == totalItemCount) && !(loadingMore)) {
new LoadJsonData().execute();
}
}
});
}
dataListAdapter = new DataListAdapter(dataArrayList);
lv.setAdapter(dataListAdapter);
}
private void scrollNotifyChange() {
lv.setOnScrollListener(new AbsListView.OnScrollListener() {
#Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
#Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
int lastInScreen = firstVisibleItem + visibleItemCount;
if ((lastInScreen == totalItemCount) && !(loadingMore)) {
new LoadJsonData().execute();
}
}
});
}
public static boolean isOnline(Context context) {
ConnectivityManager cm =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
return netInfo != null && netInfo.isConnectedOrConnecting();
}
private class LoadJsonData extends AsyncTask<Void, Void, String> {
// ProgressDialog progress;
#Override
protected void onPreExecute() {
super.onPreExecute();
if (dataArrayList.size() == 0) {
progress = ProgressDialog.show(_activity, "Progress",
"Please wait", true);
}
}
#Override
protected String doInBackground(Void... params) {
String jsonResult = "";
loadingMore = true;
InputStream inputStream = null;
String result = "";
try {
HttpClient httpclient = new DefaultHttpClient();
HttpGet request = new HttpGet("https://datatables.net/examples/server_side/scripts/server_processing.php");
HttpResponse httpResponse = httpclient.execute(request);
inputStream = httpResponse.getEntity().getContent();
if (inputStream != null) {
jsonResult = convertInputStreamToString(inputStream);
} else {
jsonResult = "Did not work!";
}
} catch (Exception e) {
Log.e(TAG, "GET failed", e);
}
return jsonResult;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
progress.dismiss();
try {
JSONObject dataJsontObject = new JSONObject(result);
JSONArray dataJsonArray = dataJsontObject.getJSONArray("data");
for (int i = 0; i < dataJsonArray.length(); i++) {
JSONArray dataSubArray = dataJsonArray.getJSONArray(i);
DataObject dataObject = new DataObject();
dataObject.setName((String) dataSubArray.get(0));
dataObject.setType((String) dataSubArray.get(1));
dataObject.setProfession((String) dataSubArray.get(2));
dataObject.setCountry((String) dataSubArray.get(3));
dataObject.setCurrency((String) dataSubArray.get(5));
dataArrayList.add(dataObject);
// dataListAdapter.add(dataObject);
}
lv.addFooterView(footerView);
dataListAdapter.notifyDataSetChanged();
loadingMore = false;
} catch (JSONException e) {
e.printStackTrace();
}
}
}
public class DataListAdapter extends BaseAdapter {
ArrayList<DataObject> dataListObject = new ArrayList<DataObject>();
public DataListAdapter(ArrayList<DataObject> dataListObject) {
this.dataListObject = dataListObject;
}
#Override
public int getCount() {
return dataListObject.size();
}
#Override
public Object getItem(int position) {
return dataListObject.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
LayoutInflater inflater = LayoutInflater.from(_activity);
convertView = inflater.inflate(R.layout.single_row, null);
holder = new ViewHolder();
holder.name = (TextView) convertView.findViewById(R.id.name);
holder.type = (TextView) convertView.findViewById(R.id.type);
holder.profession = (TextView) convertView.findViewById(R.id.profession);
holder.country = (TextView) convertView.findViewById(R.id.country);
holder.currency = (TextView) convertView.findViewById(R.id.currecy);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
final DataObject current = dataListObject.get(position);
holder.name.setText("Name--" + current.getName());
holder.type.setText("Type--" + current.getType());
holder.profession.setText("Professoion--" + current.getProfession());
holder.country.setText("Country--" + current.getCountry());
holder.currency.setText("Currency--" + current.getCurrency());
return convertView;
}
}
static class ViewHolder {
TextView name;
TextView type;
TextView profession;
TextView country;
TextView currency;
}
public static String convertInputStreamToString(InputStream inputStream) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
String line = "";
String result = "";
while ((line = bufferedReader.readLine()) != null) {
result += line;
}
inputStream.close();
return result;
}
}

Android Beginner: ListView with Images and CheckBoxes

I am a beginner programmer so please bear with me. I have been able to create a listview with images in it and thought I could modify it to add a checkbox. However, this setup does not work. Any suggestions to how I may fix my code to create a listview with both an image and checkbox?
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.ParseException;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class CheckboxList extends ListActivity{
private LayoutInflater mInflater;
private Vector<RowData> data;
RowData rd;
static CheckBox box0,box1,box2,box3;
static final String[] title = new String[] {
"Box 1", "Box 2",
"Box 3 ","Box 4" };
static final CheckBox[] boxes= new CheckBox[] {box0,box1,box2,box3};
private Integer[] imgid = {
R.drawable.magnum,R.drawable.mg,R.drawable.mk,
R.drawable.mk46};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mInflater = (LayoutInflater) getSystemService(
Activity.LAYOUT_INFLATER_SERVICE);
data = new Vector<RowData>();
for(int i=0;i<title.length;i++){
try {
rd = new RowData(i,title[i],boxes[i]);
} catch (ParseException e) {
e.printStackTrace();
}
data.add(rd);
}
CustomAdapter adapter = new CustomAdapter(this, R.layout.check_list,
R.id.title, data);
setListAdapter(adapter);
getListView().setTextFilterEnabled(true);
}
public void onListItemClick(ListView parent, View v, int position,
long id) {
Toast.makeText(getApplicationContext(), "You have selected "
+(position+1)+"th item", Toast.LENGTH_SHORT).show();
}
private class RowData {
protected int mId;
protected String mTitle;
protected CheckBox mCBox;
RowData(int id,String title,CheckBox cbox){
mId=id;
mTitle = title;
mCBox=cbox;
}
#Override
public String toString() {
return mId+" "+mTitle+" "+mCBox;
}
}
private class CustomAdapter extends ArrayAdapter<RowData> {
public CustomAdapter(Context context, int resource,
int textViewResourceId, List<RowData> objects) {
super(context, resource, textViewResourceId, objects);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
TextView title = null;
CheckBox box = null;
ImageView i11=null;
RowData rowData= getItem(position);
if(null == convertView){
convertView = mInflater.inflate(R.layout.check_list, null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}
holder = (ViewHolder) convertView.getTag();
title = holder.gettitle();
title.setText(rowData.mTitle);
box = holder.getcheckbox();
box.setChecked(false);
i11=holder.getImage();
i11.setImageResource(imgid[rowData.mId]);
return convertView;
}
private class ViewHolder {
private View mRow;
private TextView title = null;
private CheckBox cbox = null;
private ImageView i11=null;
public ViewHolder(View row) {
mRow = row;
}
public TextView gettitle() {
if(null == title){
title = (TextView) mRow.findViewById(R.id.title);
}
return title;
}
public CheckBox getcheckbox() {
if(null == cbox){
cbox = (CheckBox) mRow.findViewById(R.id.checkBox);
}
return cbox;
}
public ImageView getImage() {
if(null == i11){
i11 = (ImageView) mRow.findViewById(R.id.img);
}
return i11;
}
}
} }

Look at this links.it may helpfull......
http://www.vogella.com/articles/AndroidListView/article.html
CustomListview With Images and Checkboxes Example

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