I have a custom adapter Simple which the xml contains a CheckBox , corresponding to the id select ( R.id.selecionar ) .
However in another Activity where I create an ArrayList < HashMap > () called mcommentList (receiving various data from the database via Jason , however works perfectly )
After I click on a button that has onclick argument irpedidos . Clicking this button want to sweep all my arrayList looking for all the elements that are selected ( Checked box true ) and then put on a String all products who are selected .
However the idea that I have to do is wrong, to access the value of the CheckBox
what would be the solution to do what I want ? ERROR LINE: final CheckBox selec = mCommentList.get(i).get(R.id.selecionar);
package melo.gustavo.Deliveryapp;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class VisualizarCardapio extends ListActivity {
private ProgressDialog pDialog;
private static final String READ_COMMENTS_URL =
"http://-------------------/webserviceDelivery/cardapio.php";
private static final String TAG_NOMEPRODUTO = "title";
private static final String TAG_POSTS = "posts";
private static final String TAG_PRECO = "username";
private static final String TAG_DESCRICAO= "message";
private JSONArray mComments = null;
private ArrayList<HashMap<String, String>> mCommentList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.visualizar_cardapio);
}
@Override
protected void onResume() {
super.onResume();
new LoadComments().execute();
}
public void irpedidos (View v) {
String texto = "";
double totalpedido = 0.0;
for (int i = 0; i < mCommentList.size(); i++) {
final String nometeste = mCommentList.get(i).get(TAG_NOMEPRODUTO);
final String preco = mCommentList.get(i).get(TAG_PRECO);
final CheckBox selec = mCommentList.get(i).get(R.id.selecionar);
if (selec.isChecked()) {
texto+= nometeste+" :"+preco+"\n";
}
}
Toast.makeText(VisualizarCardapio.this,texto , Toast.LENGTH_LONG).show();
}
public void updateJSONdata() {
mCommentList = new ArrayList<HashMap<String, String>>();
JSONParser jParser = new JSONParser();
JSONObject json = jParser.getJSONFromUrl(READ_COMMENTS_URL);
try {
mComments = json.getJSONArray(TAG_POSTS);
// looping through all posts according to the json object returned
for (int i = 0; i < mComments.length(); i++) {
JSONObject c = mComments.getJSONObject(i);
String nomep = c.getString(TAG_NOMEPRODUTO);
String descp = c.getString(TAG_DESCRICAO);
String precop = c.getString(TAG_PRECO);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_NOMEPRODUTO, nomep);
map.put(TAG_DESCRICAO, descp);
map.put(TAG_PRECO, precop);
// adding HashList to ArrayList
mCommentList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
private void updateList() {
ListAdapter adapter = new MySimpleAdapterCardapio(this, mCommentList,
R.layout.single_post_cardapio, new String[] { TAG_NOMEPRODUTO,
TAG_DESCRICAO,TAG_PRECO }, new int[] { R.id.title, R.id.message,
R.id.username});
// I shouldn't have to comment on this one:
setListAdapter(adapter);
ListView listView = getListView();
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapter, View arg1, int posicao,
long arg3) {
//implementar detalhes (adicional, sem salada)
}
});
}
public class LoadComments extends AsyncTask<Void, Void, Boolean> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(VisualizarCardapio.this);
pDialog.setMessage("Loading Comments...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected Boolean doInBackground(Void... arg0) {
updateJSONdata();
return null;
}
@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
pDialog.dismiss();
updateList();
}
}
}
Follow the codes of activitys and xml the same
MySimpleAdapterCardapio .java
package melo.gustavo.Deliveryapp;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MySimpleAdapterCardapio extends SimpleAdapter {
private static final String TAG_NOMEPRODUTO = "title";
private static final String TAG_POSTS = "posts";
private static final String TAG_PRECO = "username";
private static final String TAG_DESCRICAO= "message";
private ArrayList<HashMap<String, Object>> results;
private Context mContext;
public LayoutInflater inflater = null;
public MySimpleAdapterCardapio(Context context, List<? extends Map<String, ?>> data, int resource, String[] from, int[] to) {
super(context, data, resource, from, to);
mContext = context;
results = (ArrayList<HashMap<String, Object>>) data;
inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.single_post_cardapio, null);
final HashMap<String, Object> data = (HashMap<String, Object>) getItem(position);
final TextView tt = (TextView) vi.findViewById(R.id.title);
tt.setText((CharSequence) data.get(TAG_NOMEPRODUTO));
TextView tt2 = (TextView) vi.findViewById(R.id.username);
tt2.setText((CharSequence) data.get(TAG_PRECO));
TextView tt3 = (TextView) vi.findViewById(R.id.message);
tt3.setText((CharSequence) data.get(TAG_DESCRICAO));
final CheckBox selec = (CheckBox) vi.findViewById(R.id.selecionar);
selec.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
selec.setChecked(isChecked);
if (selec.isChecked()) {
selec.setText("Selecionado");
Toast.makeText(mContext, tt.getText() + " " + isChecked, Toast.LENGTH_LONG).show();
}
else {
selec.setText("Selecionar");
}
}
});
//new DownloadTask((ImageView) vi.findViewById(R.id.fotolanchonete)).execute((String) data.get(TAG_FOTOLANC));
return vi;
}
}
single_post_cardapio.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://ift.tt/nIICcg"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#f0f0f0"
android:orientation="vertical"
android:weightSum="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:background="@drawable/post_border_style"
android:orientation="vertical"
android:layout_weight="6">
<LinearLayout
android:id="@+id/box"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="2dp"
android:background="@drawable/post_background_style"
android:orientation="horizontal" >
<CheckBox
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/selecionar"
android:layout_weight="3.08"
android:text="Selecionar"
/>
<LinearLayout
android:id="@+id/box2"
android:layout_width="206dp"
android:layout_height="wrap_content"
android:layout_margin="2dp"
android:orientation="vertical"
android:padding="5dp"
android:weightSum="1"
android:layout_weight="3.08">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:paddingBottom="2dip"
android:paddingLeft="5dp"
android:paddingTop="6dip"
android:textColor="#333"
android:textSize="16sp"
android:textStyle="bold"
android:text="Produto: "/>
<TextView
android:id="@+id/message"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="2dip"
android:paddingLeft="8dp"
android:textColor="#888"
android:text="Descrição "
>
</TextView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="5dp" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left"
android:paddingLeft="5dp"
android:text="Preço: ">
</TextView>
<TextView
android:id="@+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left"
android:textColor="#acacac"
android:textStyle="bold" >
</TextView>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</LinearLayout>
visualizar_cardapio . xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://ift.tt/nIICcg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff" >
<LinearLayout
android:id="@+id/top_layover"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="@drawable/blue_gradient"
android:orientation="horizontal" >
<TextView
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:text="Cardápio"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content" />
</LinearLayout>
<ListView android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/bottom_layover"
android:layout_below="@+id/top_layover"
android:background="#fff"
android:divider="@android:color/transparent"
android:scrollbars="none" />
<LinearLayout
android:id="@+id/bottom_layover"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:background="@drawable/blue_gradient"
android:orientation="horizontal"
android:weightSum="2" >
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical" >
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical" >
<Button
android:id="@+id/btnValorLista"
android:onClick="irpedidos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:background="@drawable/black_button"
android:text="Selecionar Produtos" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
