ListView where each item has two textView and a checkBox

checkbox listview

I want a listview, this Item listview inside each one there are two checkbox. If you just put a listview textview and a checkBOX when you can, but if I change into two will not work. Here is the code:
Disclaimer: This code is modeled http://www.apkbus.com/android-18656-1-1.html inside, personal feel very good, novices can learn together.
MainActivity categories:

 package com.example.checkbox; 

import java.util.ArrayList; 
import java.util.HashMap; 
import java.util.List; 

import android.os.Bundle; 
import android.app.Activity; 
import android.content.Context; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.AdapterView; 
import android.widget.AdapterView.OnItemClickListener; 
import android.widget.BaseAdapter; 
import android.widget.CheckBox; 
import android.widget.ListView; 
import android.widget.TextView; 

public class MainActivity extends Activity {
TextView tv = null; 
ListView lv = null; 
TextView price = null; 
String name [] = {"G1", "G2", "G3", "G4", "G5", "G6"}; 
String priceStr [] = {"10", "20", "25", "30", "40", "50"}; 
ArrayList  listStr = null; 
private List > list = null; 
private MyAdapter adapter = null; 


@ Override 
protected void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState); 
setContentView (R.layout.activity_main); 
tv = (TextView) this.findViewById (R.id.text); 
price = (TextView) this.findViewById (R.id.item_price); 
lv = (ListView) this.findViewById (R.id.listview); 
showCheckBoxListView (); 

} 

public void showCheckBoxListView () {
list = new ArrayList > (); 
for (int i = 0; i HashMap  map = new HashMap  (); 
map.put ("item_tv", name [i]); 
map.put ("item_price", priceStr [i]); 
map.put ("item_cb", false); 
list.add (map); 

adapter = new MyAdapter (this, list, R.layout.list, new String [] {"item_tv", "item_cb"}, new int [] {R.id.item_tv, R.id.item_cb}); 
lv.setAdapter (adapter); 
listStr = new ArrayList  (); 
lv.setOnItemClickListener (new OnItemClickListener () {
@ Override 
public void onItemClick (AdapterView  arg0, View view, 
int position, long arg3) {
ViewHolder holder = (ViewHolder) view.getTag (); 
holder.cb.toggle () ;/ / every time you get hits, have access to change 
 checkbox stateMyAdapter.isSelect.put (position, holder.cb.isChecked ()) ;/ / modify the map is worth while to save state 
if (holder.cb.isChecked () == true) {
listStr.add (name [position]); 

} Else {
listStr.remove (name [position]); 
} 
tv.setText ("to select" + listStr.size () + "items"); 
} 
}); 
} 
} 

@ Override 
public boolean onCreateOptionsMenu (Menu menu) {
/ / Inflate the menu; this adds items to the action bar if it is present 
.getMenuInflater () inflate (R.menu.main, menu);. 
return true; 
} 





/ ************* MyAdapter class ********************************** / 
public static class MyAdapter extends BaseAdapter {
public static HashMap  isSelect = null; 
private Context context = null; 
private LayoutInflater inflater = null; 
private List > list = null; 
private String keyString [] = null; 
private int idValue [] = null; 

 / / As each item is displayed in the textview; private String itemName = nullprivate String itemPrice = null; 


public MyAdapter (Context context, List > list, int resource, String [] from, int [] to) {
this.context = context; 
this.list = list; 
keyString = new String [from.length]; 
idValue = new int [to.length]; 
System.arraycopy (from, 0, keyString, 0, from.length); 
System.arraycopy (to, 0, idValue, 0, to.length); 
inflater = LayoutInflater.from (context); 
init (); 

} 


public void init () {
isSelect = new HashMap  (); 
for (int i = 0; i isSelect.put (i, false); 
} 
} 
@ Override 
public int getCount () {
return list.size (); 
} 

@ Override 
public Object getItem (int arg0) {
/ / TODO Auto-generated method stub 
return list.get (arg0); 
} 

@ Override 
public long getItemId (int arg0) {
/ / TODO Auto-generated method stub 
return 0; 
} 

@ Override 
public View getView (int position, View view, ViewGroup arg2) {
ViewHolder holder = null; 
if (holder == null) {
holder = new ViewHolder (); 
if (view == null) {
view = inflater.inflate (R.layout.list, null); 
} 
holder.tv = (TextView) view.findViewById (R.id.item_tv); 
holder.price = (TextView) view.findViewById (R.id.item_price); 
holder.cb = (CheckBox) view.findViewById (R.id.item_cb); 
view.setTag (holder); 

} Else {
holder = (ViewHolder) view.getTag (); 
} 
HashMap  map = list.get (position); 
if (map! = null) {
itemName = (String) map.get (keyString [0]); 
itemPrice = (String) map.get (keyString [1]); 
holder.tv.setText (itemName); 
holder.price.setText (itemPrice); 
} 
holder.cb.setChecked (isSelect.get (position)); 
return view; 
} 

} 

} 

ViewHolder class

 package com.example.checkbox; 

import android.widget.CheckBox; 
import android.widget.TextView; 

public class ViewHolder {
public TextView tv = null; 
public TextView price = null; 
public CheckBox cb = null; 

} 

activity_main code

 xmlns: tools = "http://schemas.android.com/tools" 
android: layout_width = "match_parent" 
android: layout_height = "match_parent" 
android: paddingBottom = "@ dimen / activity_vertical_margin" 
android: paddingLeft = "@ dimen / activity_horizontal_margin" 
android: paddingRight = "@ dimen / activity_horizontal_margin" 
android: paddingTop = "@ dimen / activity_vertical_margin" 
android: orientation = "vertical" 
tools: context = ". MainActivity"> 

android: layout_width = "wrap_content" 
android: layout_height = "wrap_content" 
android: orientation = "vertical" 
> 
android: id = "@ + id / text" 
android: layout_width = "wrap_content" 
android: layout_height = "wrap_content" 
android: text = "@ string / hello_world" /> 

android: id = "@ + id / listview" 
android: layout_width = "wrap_content" 
android: layout_height = "wrap_content" 
>  
 

 

list.xml code

  
android: layout_width = "fill_parent" 
android: layout_height = "55dip" 
android: orientation = "horizontal" 
android: layout_marginTop = "20dip"> 

android: id = "@ + id / item_tv" 
android: layout_width = "wrap_content" 
android: layout_height = "wrap_content" 
android: gravity = "center_vertical" 
android: layout_marginLeft = "10dip"> 
 


android: id = "@ + id / item_price" 
android: layout_width = "wrap_content" 
android: layout_height = "wrap_content" 
/> 


android: id = "@ + id / item_cb" 
android: layout_width = "wrap_content" 
android: layout_height = "wrap_content" 
android: layout_alignParentRight = "true" 
android: layout_alignParentTop = "true" 
android: layout_marginRight = "43dp" 
android: clickable = "false" 
android: focusable = "false" 
android: focusableInTouchMode = "false" /> 

 

Error message is

 
09-17 02:42:24.745: E / AndroidRuntime (3032): FATAL EXCEPTION: main 
09-17 02:42:24.745: E / AndroidRuntime (3032): java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String 
09-17 02:42:24.745: E / AndroidRuntime (3032): at com.example.checkbox.MainActivity $ MyAdapter.getView (MainActivity.java: 152) 

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Reply:
152 lines
itemPrice = (String) map.get (keyString [1]);

Type is boolean

Not a String, not strong converted String
Reply:

cited a floor knxw0001 reply:

152 lines
itemPrice = (String) map.get (keyString [1]);

Type is boolean

Not a String, not a strong turn String

Why is a String?

 
String priceStr [] = {"10", "20", "25", "30", "40", "50"}; 
map.put ("item_price", priceStr [i]); 

This should not be a String type it?
Reply:

reference to the second floor kklt21cn reply:

Quote: references to a floor knxw0001 reply:

152 lines
itemPrice = (String) map.get (keyString [1]);

Type is boolean

Not a String, not a strong turn String

Why is a String?

 
String priceStr [] = {"10", "20", "25", "30", "40", "50"}; 
map.put ("item_price", priceStr [i]); 

This should not be a String type it?

keystring in what

Reply:
Constructor Adapter for

 
public MyAdapter (Context context, List > list, int resource, String [] from, int [] to) {
keyString = new String [from.length]; 
System.arraycopy (from, 0, keyString, 0, from.length); 

This way, then, keyString not a listview inside an array of names of all components installed it?
Reply:
itemPrice = (String) map.get (keyString [1]); the 152 line to itemPrice = "" + map.get (keyString [1]);
Reply:
49 line map.put ("item_cb", false);

52 line adapter = new MyAdapter (this, list, R.layout.list, new String [] {"item_tv", "item_cb"}, new int [] {R.id.item_tv, R.id.item_cb});

152 line itemPrice = (String) map.get (keyString [1]);

Please look carefully you this keyString [1] is actually item_cb

May be you neglect it
The effect you want to line 52 should be changed to the following adapter = new MyAdapter (this, list, R.layout.list, new String [] {"item_tv", "item_price"}, new int [] {R. id.item_tv, R.id.item_cb});

Reply:
May be you neglect it
The effect you want to line 52 should be changed to the following adapter = new MyAdapter (this, list, R.layout.list, new String [] {"item_tv", "item_price"}, new int [] {R. id.item_tv, R.id.item_cb});

Please ignore this answer.

Who is a positive solution upstairs.
Reply:

reference to the 6th floor shen332401890 reply:

49 rows map.put ("item_cb", false);

52 line adapter = new MyAdapter (this, list, R.layout.list, new String [] {"item_tv", "item_cb"}, new int [] {R.id.item_tv, R.id.item_cb});

152 line itemPrice = (String) map.get (keyString [1]);

Please look carefully you this keyString [1] is actually item_cb

May be you neglect it
The effect you want to line 52 should be changed to the following adapter = new MyAdapter (this, list, R.layout.list, new String [] {"item_tv", "item_price"}, new int [] {R. id.item_tv, R.id.item_cb});

Indeed, I have not really had the item_price into the array, so KeyString [1] is a boolean variable.
Thank you for your answer.