package rappiddevelopers.destinationadvisor;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.TextView;
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.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import rappiddevelopers.destinationadvisor.models.HotelModel;
import rappiddevelopers.destinationadvisor.models.TranslatorModel;
public class TranslatorActivity extends AppCompatActivity {
private AutoCompleteTextView textView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_translator);
textView = (AutoCompleteTextView) findViewById(R.id.actTranslator);
new JSONTranslatorTask().execute(Constants.TranslatorDatabase);
}
public class JSONTranslatorTask extends AsyncTask<String, String, List<TranslatorModel>> {
#Override
protected List<TranslatorModel> doInBackground(String... params) {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(params[0]);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
String finalJson = buffer.toString();
JSONArray parentArray = new JSONArray(finalJson);
List<TranslatorModel> translatorModelList = new ArrayList<>();
for(int i= 0; i<parentArray.length();i++) {
JSONObject finalObject = parentArray.getJSONObject(i);
TranslatorModel translatorModel = new TranslatorModel();
translatorModel.setEnglishSentence(finalObject.getString("englishSentence"));
translatorModelList.add(translatorModel);
}
return translatorModelList;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} finally {
if (connection != null) {
connection.disconnect();
}
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(List<TranslatorModel> data) {
super.onPostExecute(data);
TranslatorAdapter adapter = new TranslatorAdapter(getApplicationContext(), R.layout.translator, data);
textView.setAdapter(adapter);
}
}
public class TranslatorAdapter extends ArrayAdapter {
private List<TranslatorModel> translatorModelList;
private int resource;
private LayoutInflater inflater;
public TranslatorAdapter(Context context, int resource, List<TranslatorModel> objects) {
super(context, resource, objects);
translatorModelList = objects;
this.resource = resource;
inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if(convertView == null){
convertView = inflater.inflate(resource, null);
holder = new ViewHolder();
holder.tvTranslator = (TextView) convertView.findViewById(R.id.tvTranslator);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
holder.tvTranslator.setText(translatorModelList.get(position).getEnglishSentence());
return convertView;
}
class ViewHolder{
private TextView tvTranslator;
}
}
}
// I want to fetch data from my database . i created one translator model class and one translator activity class.
translator activity is my main class. in this class i also created translatorAdapter class.
2 xml layout files. main activity xml file have autocomplete textview . other xml file have textview .
Related
I have a question. Why the recyclerView is invisible. I have written in the code so that the ActivityListToSerach class can retrieve an array with text to display after the data is retrieved from the MySQL database. After the data download to the RecyclerViewAdapter is finished, I send the data to display.
When I call .size () in the ActivityListToSerach class, I get 0.
Anyone have an idea how to fix it.
I am a novice programmer and I thank you immediately.
ConnectorSerach:
public class ConnectorSerach extends AsyncTask<String, Void, String>
{
Context context;
public ConnectorSerach (Context ctx)
{
context = ctx;
}
public ArrayList<String> xNames = new ArrayList<>();
public ArrayList<String> xPrices = new ArrayList<>();
#Override
protected String doInBackground(String... params)
{
String nameOfProduct = params[0];
String result = "";
try
{
URL url_login = new URL("http://192.168.100.9/szukajProduktu.php");
HttpURLConnection httpURLConnection = (HttpURLConnection)url_login.openConnection();
httpURLConnection.setDoInput(true);
httpURLConnection.setDoOutput(true);
httpURLConnection.setRequestMethod("POST");
OutputStream outputStream = httpURLConnection.getOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
String data = URLEncoder.encode("name_product", "UTF-8")+"="+URLEncoder.encode(nameOfProduct, "UTF-8");
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
InputStream inputStream = httpURLConnection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "iso-8859-1"));
String line = "";
while ((line = bufferedReader.readLine()) != null)
{
result += line;
}
bufferedReader.close();
inputStream.close();
httpURLConnection.disconnect();
return result;
}
catch (MalformedURLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);
try
{
JSONArray jsonArray = new JSONArray(result);
for (int i = 0;i<jsonArray.length(); i++)
{
JSONObject jsonObject = jsonArray.getJSONObject(i);
xNames.add(jsonObject.getString("nazwa"));
}
}
catch (Exception e)
{
e.printStackTrace();
}
Intent intent = new Intent(context, ActivityListToSerach.class);
context.startActivity(intent);
}
ActivityListToSerach:
package bjd.adrian.e_shop;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.widget.Toast;
import java.util.ArrayList;
public class ActivityListToSerach extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_to_serach);
this.initRecyclerView();
}
public void initRecyclerView()
{
ConnectorSerach connectorSerach = new ConnectorSerach(this);
if(connectorSerach.getStatus().equals(AsyncTask.Status.FINISHED))
{
ArrayList<String> sNames = connectorSerach.xNames;
ArrayList<String> sPrices = connectorSerach.xPrices;
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
RecyclerViewAdapter recyclerViewAdapter = new RecyclerViewAdapter(this, sNames, sPrices);
recyclerView.setAdapter(recyclerViewAdapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setHasFixedSize(true);
}
}
RecyclerViewAdapter:
package bjd.adrian.e_shop;
import android.content.Context;
import android.support.annotation.NonNull;
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.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
public class RecyclerViewAdapter extends
RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder>
{
private static final String TAG = "RecyclerViewAdapter";
ArrayList<String> mNames = new ArrayList<>();
ArrayList<String> mPrices = new ArrayList<>();
Context context;
public RecyclerViewAdapter(Context ctx, ArrayList<String> pNames, ArrayList<String> pPrices)
{
mNames = pNames;
mPrices = pPrices;
context = ctx;
}
#NonNull
#Override
public ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType)
{
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
#Override
public void onBindViewHolder(#NonNull ViewHolder holder, int position)
{
Log.d(TAG, "onBindViewHolder: called");
holder.nameTV.setText(mNames.get(position));
holder.priceTV.setText(mPrices.get(position));
}
#Override
public int getItemCount()
{
return mNames.size();
}
public class ViewHolder extends RecyclerView.ViewHolder
{
TextView nameTV;
TextView priceTV;
public ViewHolder(View itemView)
{
super(itemView);
nameTV = itemView.findViewById(R.id.title);
priceTV = itemView.findViewById(R.id.priceTV);
}
}
There is a execute:
package bjd.adrian.e_shop;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import java.util.ArrayList;
public class ListSerachActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_serach);
}
ConnectorSerach connectorSerach = new ConnectorSerach(this);
public void onSerach(View view) {
EditText serachET = (EditText) findViewById(R.id.serachET);
String toSerachString = serachET.getText().toString();
connectorSerach.execute(toSerachString);
}
}
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;
}
}
How to swipe my full screen images from gridview...and that images should Loading from JSON response...?
i'm new to android...please help me friends...
But i want to use only One url in my program(JSON URL)...from that i need
Gridview--->FullScreenImage(zooming and swiping)
This is my gridView Activity...
package com.example.admin.loadingimagefromwebgridandswipe;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.res.Resources;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.util.TypedValue;
import android.widget.GridView;
import android.widget.ListView;
import com.example.admin.adapter.GridViewImageAdapter;
import com.example.admin.helper.AppConstant;
import com.example.admin.helper.JSONfunctions;
import com.example.admin.helper.Utils;
import com.example.admin.ndimageslider.R;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
public class GridViewActivity extends Activity {
private Utils utils;
private ArrayList<String> imagePaths = new ArrayList<String>();
private GridViewImageAdapter adapter;
private GridView gridView;
private int columnWidth;
JSONObject jsonobject;
JSONArray jsonarray;
ProgressDialog mProgressDialog;
// ArrayList<HashMap<String, String>> imagePaths;
static String RANK = "rank";
static String COUNTRY = "country";
static String POPULATION = "population";
static String FLAG = "flag";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_grid_view);
gridView = (GridView) findViewById(R.id.grid_view);
utils = new Utils(this);
// Initilizing Grid View
InitilizeGridLayout();
new DownloadJSON().execute();
}
private void InitilizeGridLayout() {
Resources r = getResources();
float padding = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
AppConstant.GRID_PADDING, r.getDisplayMetrics());
columnWidth = (int) ((utils.getScreenWidth() -
((AppConstant.NUM_OF_COLUMNS + 1) * padding)) / AppConstant.NUM_OF_COLUMNS);
gridView.setNumColumns(AppConstant.NUM_OF_COLUMNS);
gridView.setColumnWidth(columnWidth);
gridView.setStretchMode(GridView.NO_STRETCH);
gridView.setPadding((int) padding, (int) padding, (int) padding,
(int) padding);
gridView.setHorizontalSpacing((int) padding);
gridView.setVerticalSpacing((int) padding);
}
private class DownloadJSON extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
mProgressDialog = new ProgressDialog(GridViewActivity.this);
// Set progressdialog title
mProgressDialog.setTitle("Android JSON Parse Tutorial");
// Set progressdialog message
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
// Show progressdialog
mProgressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
// Create an array
imagePaths = new ArrayList<>();
// Retrieve JSON Objects from the given URL address
jsonobject = JSONfunctions
.getJSONfromURL("http://microblogging.wingnity.com/JSONParsingTutorial/jsonActors");
try {
// Locate the array name in JSON
jsonarray = jsonobject.getJSONArray("actors");
for (int i = 0; i < jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
jsonobject = jsonarray.getJSONObject(i);
// Retrive JSON Objects
imagePaths.add( jsonobject.getString("name"));
imagePaths.add(jsonobject.getString("country"));
imagePaths.add( jsonobject.getString("spouse"));
imagePaths.add(jsonobject.getString("image"));
// Set the JSON Objects into the array
// imagePaths.add(map);
}
} catch (JSONException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void args) {
// Locate the listview in listview_main.xml
gridView = (GridView) findViewById(R.id.grid_view);
// Pass the results into ListViewAdapter.java
adapter = new GridViewImageAdapter(GridViewActivity.this, imagePaths,columnWidth);
// Set the adapter to the ListView
gridView.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
}
}
}
this is my Gridview Adapter...
package com.example.admin.adapter;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.Toast;
import com.example.admin.loadingimagefromwebgridandswipe.FullScreenViewActivity;
import com.squareup.picasso.Picasso;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.ArrayList;
public class GridViewImageAdapter extends BaseAdapter {
private Activity activity;
private ArrayList<String> filePaths = new ArrayList<String>();
private int imageWidth;
public GridViewImageAdapter(Activity activity, ArrayList<String> filePaths,
int imageWidth) {
this.activity = activity;
this.filePaths = filePaths;
this.imageWidth = imageWidth;
}
#Override
public int getCount() {
return this.filePaths.size();
}
#Override
public Object getItem(int position) {
return this.filePaths.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null) {
imageView = new ImageView(activity);
} else {
imageView = (ImageView) convertView;
}
String designationUrl = filePaths.get(position);
// Log.d("designationUrl",""+designationUrl);
// URL url = null;
// try {
// url = new URL(designationUrl);
// } catch (MalformedURLException e) {
// e.printStackTrace();
// }
// Bitmap bmp = null;
// try {
// bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
// } catch (IOException e) {
// e.printStackTrace();
// }
Picasso.with(activity)
.load(designationUrl)
.resize(imageWidth, imageWidth).into(imageView);
// image view click listener
imageView.setOnClickListener(new OnImageClickListener(position));
//Toast.makeText(GridViewImageAdapter.this,"url: "+designationUrl,Toast.LENGTH_LONG).show();
return imageView;
}
class OnImageClickListener implements OnClickListener {
int _postion;
// constructor
public OnImageClickListener(int position) {
this._postion = position;
}
#Override
public void onClick(View v) {
// on selecting grid view image
// launch full screen activity
// Toast.makeText(GridViewImageAdapter.this,"url: "+,Toast.LENGTH_LONG).show();
Intent i = new Intent(activity, FullScreenViewActivity.class);
i.putExtra("position", _postion);
activity.startActivity(i);
}
}
/*
* Resizing image size
*/
public static Bitmap decodeFile(String filePath, int WIDTH, int HIGHT) {
try {
File f = new File(filePath);
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f), null, o);
final int REQUIRED_WIDTH = WIDTH;
final int REQUIRED_HIGHT = HIGHT;
int scale = 1;
while (o.outWidth / scale / 2 >= REQUIRED_WIDTH
&& o.outHeight / scale / 2 >= REQUIRED_HIGHT)
scale *= 2;
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
return null;
}
}
Fullscreen imageViewActivity....
package com.example.admin.loadingimagefromwebgridandswipe;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.widget.ImageView;
import com.example.admin.Application;
import com.example.admin.adapter.FullScreenImageAdapter;
import com.example.admin.helper.JSONfunctions;
import com.example.admin.helper.Utils;
import com.example.admin.ndimageslider.R;
public class FullScreenViewActivity extends Activity{
private Utils utils;
private FullScreenImageAdapter adapter;
private ViewPager viewPager;
private ImageView flag;
private ImageView image;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen_view);
viewPager = (ViewPager) findViewById(R.id.pager);
utils = new Utils(getApplicationContext());
//flag=(ImageView)findViewById(R.id.flag);
image=(ImageView)findViewById(R.id.image);
Intent i = getIntent();
int position = i.getIntExtra("position", 0);
adapter = new FullScreenImageAdapter(FullScreenViewActivity.this,
Application.url());
viewPager.setAdapter(adapter);
// displaying selected image first
viewPager.setCurrentItem(position);
}
}
FullScreenImageAdapter:
package com.example.admin.adapter;
import android.app.Activity;
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.RelativeLayout;
import com.example.admin.helper.TouchImageView;
import com.example.admin.ndimageslider.R;
import com.squareup.picasso.Picasso;
import org.json.JSONObject;
import java.util.ArrayList;
public class FullScreenImageAdapter extends PagerAdapter {
private Activity activity;
private ArrayList<String> imagePaths;
private LayoutInflater inflater;
// constructor
public FullScreenImageAdapter(Activity activity,
ArrayList<String> imagePaths) {
this.activity = activity;
this.imagePaths = imagePaths;
}
#Override
public int getCount() {
return this.imagePaths.size();
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == ((RelativeLayout) object);
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
TouchImageView imgDisplay;
Button btnClose;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View viewLayout = inflater.inflate(R.layout.layout_fullscreen_image, container,
false);
imgDisplay = (TouchImageView) viewLayout.findViewById(R.id.imgDisplay);
btnClose = (Button) viewLayout.findViewById(R.id.btnClose);
// BitmapFactory.Options options = new BitmapFactory.Options();
// options.inPreferredConfig = Bitmap.Config.ARGB_8888;
// Bitmap bitmap = BitmapFactory.decodeFile(_imagePaths.get(position), options);
// imgDisplay.setImageBitmap(bitmap);
Picasso.with(activity)
.load(imagePaths.get(position)).into(imgDisplay);
// close button click event
btnClose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
activity.finish();
}
});
((ViewPager) container).addView(viewLayout,0);
return viewLayout;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((RelativeLayout) object);
}
}
Application:
package com.example.admin;
import android.widget.Toast;
import com.example.admin.helper.FileCache;
import java.util.ArrayList;
public class Application extends android.app.Application {
public static ArrayList<String> url(){
ArrayList<String> filePaths = new ArrayList<String>();
filePaths.add("http://microblogging.wingnity.com/JSONParsingTutorial/jsonActors");
return filePaths;
}
}
JSONfunctions:
package com.example.admin.helper;
/**
* Created by Admin on 14-03-2016.
*/
import android.util.Log;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class JSONfunctions {
public static JSONObject getJSONfromURL(String url) {
InputStream is = null;
String result = "";
JSONObject jArray = null;
// Download JSON data from URL
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
} catch (Exception e) {
Log.e("log_tag", "Error in http connection " + e.toString());
}
// Convert response to string
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
result = sb.toString();
} catch (Exception e) {
Log.e("log_tag", "Error converting result " + e.toString());
}
try {
jArray = new JSONObject(result);
} catch (JSONException e) {
Log.e("log_tag", "Error parsing data " + e.toString());
}
return jArray;
}
}
you'll have to implement Viewpage in your application. Take a look at this tutorial for the application you are trying to make.
http://www.androidhive.info/2013/09/android-fullscreen-image-slider-with-swipe-and-pinch-zoom-gestures/
Follow this link. Cheers.
I need help from anyone.. please respect my question..
ok, my problem is i want to use Glide for my listview but i dont know to do..
please constract my listviewadapter so that the Glide will work give me any other possible solution to achieve my goal..
my goal is i just want to display image and text in listview or gridview with Glide and JSON, the JSON result is from my php script..
here is my code..
CategoryFragment.java
package com.example.administrator.mosbeau;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ExpandableListView;
import android.widget.ListView;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
/**
* Created by Administrator on 9/18/2015.
*/
public class CategoryFragment extends Fragment {
public static CategoryFragment newInstance(String id,String name) {
CategoryFragment fragment = new CategoryFragment();
Bundle bundle = new Bundle();
bundle.putString("id", id);
bundle.putString("name", name);
fragment.setArguments(bundle);
return fragment;
}
public CategoryFragment () {
}
EditText tpid, tpname;
String cid;
String cname;
String myJSON;
JSONObject jsonobject;
JSONArray jsonarray;
ListView productlistview;
ListViewAdapter adapter;
ProgressDialog mProgressDialog;
ArrayList<HashMap<String, String>> arraylist;
public static String products_id = "products_id";
public static String products_name = "products_name";
public static String products_price = "products_price";
public static String products_image = "products_image";
Boolean InternetAvailable = false;
Seocnd detectconnection;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.categorylayout, container, false);
getActivity().invalidateOptionsMenu();
tpid = (EditText) rootView.findViewById(R.id.tpid);
tpname = (EditText) rootView.findViewById(R.id.tpname);
if(getArguments() != null) {
String catid = getArguments().getString("id");
String catname = getArguments().getString("name");
tpid.setText(catid);
tpname.setText(catname);
cid = catid;
cname = catname;
}
productlistview = (ListView) rootView.findViewById(R.id.productlistview);
//new DownloadJSON().execute();
detectconnection = new Seocnd(getActivity());
InternetAvailable = detectconnection.InternetConnecting();
if (InternetAvailable) {
getProduct();
} else {
NointernetFragment fragment = new NointernetFragment();
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, fragment)
.commit();
}
return rootView;
}
public void getProduct(){
class DownloadJSON extends AsyncTask<String, Void, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
mProgressDialog = new ProgressDialog(getActivity());
// Set progressdialog title
mProgressDialog.setTitle(cname);
// Set progressdialog message
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
// Show progressdialog
mProgressDialog.show();
}
#Override
protected String doInBackground(String... params) {
DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
HttpPost httppost = new HttpPost("http://joehamirbalabadan.com/android/android/products.php");
// Depends on your web service
httppost.setHeader("Content-type", "application/json");
InputStream inputStream = null;
String result = null;
try {
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
inputStream = entity.getContent();
// json is UTF-8 by default
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
result = sb.toString();
} catch (Exception e) {
// Oops
}
finally {
try{if(inputStream != null)inputStream.close();}catch(Exception squish){}
}
return result;
}
#Override
protected void onPostExecute(String result){
myJSON=result;
try {
// Locate the array name in JSON
JSONObject jsonObj = new JSONObject(myJSON);
jsonarray = jsonObj.getJSONArray("products");
arraylist = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
JSONObject p = jsonarray.getJSONObject(i);
// Retrive JSON Objects
map.put("products_id", p.getString("products_id"));
map.put("products_name", p.getString("products_name"));
map.put("products_price", p.getString("products_price"));
map.put("products_image", p.getString("products_image"));
// Set the JSON Objects into the array
arraylist.add(map);
}
} catch (JSONException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
adapter = new ListViewAdapter(getActivity(), arraylist);
// Set the adapter to the ListView
productlistview.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
}
}
DownloadJSON g = new DownloadJSON();
g.execute();
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(2);
}
}
ListViewAdapter.java
package com.example.administrator.mosbeau;
/**
* Created by Administrator on 9/28/2015.
*/
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.HashMap;
import com.bumptech.glide.Glide;
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context context;
LayoutInflater inflater;
ArrayList<HashMap<String, String>> data;
ImageLoader imageLoader;
HashMap<String, String> resultp = new HashMap<String, String>();
public ListViewAdapter(Context context,
ArrayList<HashMap<String, String>> arraylist) {
this.context = context;
data = arraylist;
imageLoader = new ImageLoader(context);
}
#Override
public int getCount() {
return data.size();
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent) {
// Declare Variables
TextView products_id;
TextView products_name;
TextView products_price;
ImageView products_image;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = inflater.inflate(R.layout.product_listview_item, parent, false);
// Get the position
resultp = data.get(position);
// Locate the TextViews in product_listview_item.xml
products_id = (TextView) itemView.findViewById(R.id.products_id);
products_name = (TextView) itemView.findViewById(R.id.products_name);
products_price = (TextView) itemView.findViewById(R.id.products_price);
// Locate the ImageView in product_listview_item.xml
products_image = (ImageView) itemView.findViewById(R.id.products_image);
// Capture position and set results to the TextViews
products_id.setText(resultp.get(CategoryFragment.products_id));
products_name.setText(resultp.get(CategoryFragment.products_name));
products_price.setText(resultp.get(CategoryFragment.products_price));
// Capture position and set results to the ImageView
// Passes flag images URL into ImageLoader.class
imageLoader.DisplayImage(resultp.get(CategoryFragment.products_image), products_image);
// Capture ListView item click
itemView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// Get the position
resultp = data.get(position);
Intent intent = new Intent(context, SingleItemView.class);
// Pass all data rank
intent.putExtra("products_id", resultp.get(CategoryFragment.products_id));
// Pass all data country
intent.putExtra("products_name", resultp.get(CategoryFragment.products_name));
// Pass all data population
intent.putExtra("products_price",resultp.get(CategoryFragment.products_price));
// Pass all data flag
intent.putExtra("products_image", resultp.get(CategoryFragment.products_image));
// Start SingleItemView Class
context.startActivity(intent);
}
});
return itemView;
}
}
Just use : Glide.with(context)
.load(resultp.get(CategoryFragment.products_image))
.into(products_image);
in place of
imageLoader.DisplayImage(resultp.get(CategoryFragment.products_image), products_image);
in your ListViewAdapter.java
sorry for my question, I guess it's pretty simple. I have a Fragment that needs to implements an interface listener.
package com.tumta.henrique.teste;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.tumta.henrique.teste.ConsultaEntidades.*;
import java.util.List;
/**
* A simple {#link Fragment} subclass.
*/
public class EntidadeFragment extends Fragment implements ConsultaConcluidaListener {
private static final String ARG_SECTION_NUMBER = "section_number";
public EntidadeFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_entidade, container, false);
new ConsultaEntidades((ConsultaEntidades)getActivity()).execute();
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
public static EntidadeFragment newInstance(int sectionNumber){
EntidadeFragment frag = new EntidadeFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
frag.setArguments(args);
return frag;
}
#Override
public void onConsultaConcluida(List<String> result) {
ListView listaEntidades = (ListView) getView().findViewById(R.id.listaentidades);
ArrayAdapter arrayAdapter = new ArrayAdapter<>(getView().getContext(),android.R.layout.simple_list_item_1, result);
listaEntidades.setAdapter(arrayAdapter);
}
}
I need used to use this when it was an Activity: new ConsultaEntidades(this).execute(); But now I need to use the same line in the Frag, but I can't use this and when I use new ConsultaEntidades((ConsultaEntidades)getActivity()).execute(); It shows ~cannot cast FragmentActivity to ConsultaEntidades<br><br>ConsultaEntidades` is my class:
package com.tumta.henrique.teste;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.content.Context;
import android.os.AsyncTask;
import android.support.v4.app.FragmentActivity;
public class ConsultaEntidades extends AsyncTask<Void, Void, List<String>> {
private ConsultaConcluidaListener listener;
private static final String URL_STRING = "http://192.168.0.14:7001/com.henrique.rest/api/v1/status/entidade/";
public ConsultaEntidades(ConsultaConcluidaListener listener){
this.listener = listener;
}
#Override
protected List<String> doInBackground(Void... arg0) {
try {
String resultado = ConsultaServidor();
return InterpretaResultado(resultado);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
private List<String> InterpretaResultado(String resultado) throws JSONException {
JSONObject object = new JSONObject(resultado);
JSONArray jsonArray = object.getJSONArray("entidade");
List<String> listaNomes = new ArrayList<String>();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonWaether = jsonArray.getJSONObject(i);
//int id = jsonWaether.getInt("ent_id");
String nome = jsonWaether.getString("ent_nome");
listaNomes.add(i, nome);
}
return listaNomes;
}
private String ConsultaServidor() throws IOException {
InputStream is = null;
try {
URL url = new URL(URL_STRING);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(10000);
conn.setReadTimeout(15000);
conn.setRequestMethod("GET");
conn.setDoInput(true);
conn.connect();
conn.getResponseCode();
is = conn.getInputStream();
Reader reader = null;
reader = new InputStreamReader(is);
char[] buffer = new char[2048];
reader.read(buffer);
return new String(buffer);
} finally {
if (is != null) {
is.close();
}
}
}
#Override
protected void onPostExecute(List<String> result) {
listener.onConsultaConcluida(result);
super.onPostExecute(result);
}
public interface ConsultaConcluidaListener {
void onConsultaConcluida(List<String> result);
}
}
So you note that I need to implement that interface in the frag. How can I do that?
you have two mistakes in your onCreateView
you are trying to instantiate the AsyncTask after you are returning
you are casting the getActivity() to the interface, without having the Activity implementing it.
it should look like :
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
new ConsultaEntidades(this).execute();
return inflater.inflate(R.layout.fragment_entidade, container, false);
}