机器人编程

Question

我知道什么是必须做..这是我必须做的..

创建自定义列表视图（在左侧的列表行的复选框）在您的应用程序，与适配器获得数据一个从您的应用程序从联系人应用程序使用服务或线程，然后膨胀它的视图

但我遇到了麻烦...... 我knw的基础太..然后通过arraylist在适配器...

如果任何机构可以帮助我..我在这一周卡住了...我想要得到它...

ArrayList<WhateverTypeYouWant> mArrayList = new ArrayList<WhateverTypeYouWant>(); 
for(mCursor.moveToFirst(); mCursor.moveToNext(); mCursor.isAfterLast()) { 
    // The Cursor is now set to the right position 
    mArrayList.add(mCursor.getWhateverTypeYouWant(WHATEVER_COLUMN_INDEX_YOU_WANT)); 
} 

这里是代码...

package com.exiom.productcatalogue; 

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

import android.app.Activity; 
import android.database.Cursor; 
import android.os.Bundle; 
import android.provider.ContactsContract; 
import android.util.SparseBooleanArray; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.ListView; 
import android.widget.SimpleAdapter; 
import android.widget.Toast; 

public class WebexAttendeeList extends Activity { 

ListView lstAttends; 
ListView lstContacts; 
private ArrayList<String> aAttendees = new ArrayList<String>(); 
private ArrayList<String> aContacts= new ArrayList<String>(); 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.webexattendees); 

//  lstContacts = (ListView)findViewById(R.id.lstContacts); 
     lstAttends = (ListView)findViewById(R.id.lstAttendees); 

     Cursor cur = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null); 

     ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>(); 
     HashMap<String, String> sContact = new HashMap<String, String>(); 

    if (cur.getCount() > 0) { 
     while (cur.moveToNext()) { 
      String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID)); 
      String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)); 
      sContact = new HashMap<String, String>(); 
    Cursor emailCur = getContentResolver().query( 
     ContactsContract.CommonDataKinds.Email.CONTENT_URI, 
     null, 
     ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?", 
     new String[]{id}, null); 
    while (emailCur.moveToNext()) { 
     // This would allow you get several email addresses 
      // if the email addresses were stored in an array 
     String email = emailCur.getString(
          emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA)); 
//   String emailType = emailCur.getString(
//       emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE)); 
     sContact.put("name", name); 
     sContact.put("email", email); 
     mylist.add(sContact); 
     aAttendees.add(name); 
     } 
     emailCur.close(); 

     } 
     cur.close(); 
    } 

// SimpleAdapter mAttendees = new SimpleAdapter(this, mylist, R.layout.multicolumnlayout, 
//   new String[] {"name", "email"}, new int[] {R.id.NAME, R.id.EMAIL}); 
//  lstContacts.setAdapter(mAttendees); 
//  lstContacts.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 
    ArrayAdapter<String> attendAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_multiple_choice, aAttendees); 
    lstAttends.setAdapter(attendAdapter); 
     lstAttends.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 

    Button btnStart = (Button)this.findViewById(R.id.btnStartWebex); 
    btnStart.setOnClickListener(mStartButtonListener); 
    Button btnCancel = (Button)this.findViewById(R.id.btnWebexCancel); 
     btnCancel.setOnClickListener(mCancelButtonListener); 
//  lstContacts.setOnClickListener(mSelectAttendee); 

    } 

    public void StartWebEx() 
    { 
//  WebexClient webex = null ; 
//  String webExId = ""; 
// String backUrl = ""; 
// 
// webex.getLoginUrl(webExId, backUrl); 

    int len = lstAttends.getCount(); 
    SparseBooleanArray checked = lstAttends.getCheckedItemPositions(); 
    for (int i = 0; i < len; i++) 
     if (checked.get(i)) { 
     String item = aAttendees.get(i).toString(); 
     /* do whatever you want with the checked item */ 
     } 
    } 

    private OnClickListener mStartButtonListener = new OnClickListener() { 
    public void onClick(View v) { 
     // do something when the button is clicked 
     Toast.makeText(getBaseContext(), "Starting WebEx...",Toast.LENGTH_SHORT).show(); 
//  String sSQLCmd = "update U_WEBEX_SETTING set webex_url = '"+edtWURL.getText()+"', " 
//    + "webex_id = '"+edtWID.getText()+"', " 
//    + "webex_pw = '"+edtWPW.getText()+"'"; 
//  
//  db.execSQL(sSQLCmd); 
     StartWebEx(); 
     finish(); 
    }; 
    }; 

    private OnClickListener mCancelButtonListener = new OnClickListener() { 
    public void onClick(View v) { 
    // do something when the button is clicked 
    Toast.makeText(getBaseContext(), "Exiting WebEx...",Toast.LENGTH_LONG).show(); 
    finish(); 
    }; 
    }; 

    private OnClickListener mSelectAttendee = new OnClickListener() { 
     public void onClick(View v) { 
     // do something when the button is clicked 
        //  aAttendees.add(lstContacts); 
     Toast.makeText(getBaseContext(), "Selected...",Toast.LENGTH_LONG).show(); 
     finish(); 
     }; 
     }; 

} 

Answer 1

我认为，这将有利于你。 Content Providers