android - 在自定义列表视图中显示联系人号码和联系人姓名

Question

谁能告诉我应该如何在自定义列表视图中显示电话号码和联系人姓名？代码粘贴在下面

import android.app.Activity;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class AddContacts extends Activity implements OnClickListener {

    ListView list;
    Cursor cursor;
    SimpleCursorAdapter adapter;
    String phoneNumber;
    Button AddNumber;
    EditText number1;
    EditText number2;
    EditText number3;
    String contact1;
    String contact2;
    CheckBox checkBox;
    String contact_name;

    static final String TAG = "In AddContacts";

    @SuppressWarnings("deprecation")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.listview);
        AddNumber = (Button) findViewById(R.id.AddNumbers);
        number1 = (EditText) findViewById(R.id.NumberField1);
        number2 = (EditText) findViewById(R.id.NumberField2);
        number3 = (EditText) findViewById(R.id.NumberField3);
        AddNumber.setOnClickListener(this);
        list = (ListView) findViewById(R.id.lists);


        Log.d(TAG, "onCreate");



        Cursor cursor = getContentResolver().query(
                ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null,
                null, null);

        String[] nameNumberArray = new String[cursor.getCount()];
        Log.d("rows", Integer.toString(cursor.getCount()));

        Log.d("phone", "here");
        while (cursor.moveToNext()) {
            String phoneNumber =

            cursor.getString(cursor
                    .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
            String name = cursor.getString(cursor
                    .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
            Log.i("Number + Name", phoneNumber + name);
        }
        if (cursor.getCount() > 0) {

            int i = 0;
            if (cursor.moveToFirst()) {
                do {
                    phoneNumber = cursor
                            .getString(cursor
                                    .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

                    contact_name = cursor
                            .getString(cursor
                                    .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                    nameNumberArray[i] = contact_name + "  , " + phoneNumber;
                    i++;
                } while (cursor.moveToNext());
            }

        }

        final String[] FROM = { nameNumberArray[0], nameNumberArray[1] };
        final int[] TO = { R.id.contact_name, R.id.phone_number, };
        adapter = new SimpleCursorAdapter(this, R.layout.row, cursor, FROM, TO);
        list.setAdapter(adapter);
        cursor.close();
    }

    @Override
    public void onClick(View v) {


        Log.d(TAG, "onClicked method");


    }
}

ROW.xml 文件是一个自定义的 listView，带有一个复选框和两个 textView。该代码从联系人中提取数据并将其显示在 LogCat 中。我不知道如何使用 simpleCursorAdapter 在我的自定义视图中显示名称和数字。

row.xml 文件

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/contact_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="John Doe"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/phone_number"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/contact_name"
        android:text="(999)999-9999"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <CheckBox
        android:id="@+id/checkBox_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true" />

</RelativeLayout>

谁能指导我？谢谢。

Answer 1

由于操作要求使用自定义适配器的解决方案，我发布了以下内容。（来自评论）

显示.java

public class Display extends Activity implements OnItemClickListener{

    List<String> name1 = new ArrayList<String>();
    List<String> phno1 = new ArrayList<String>();
    MyAdapter ma ;
    Button select;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.display);

        getAllContacts(this.getContentResolver());
        ListView lv= (ListView) findViewById(R.id.lv);
            ma = new MyAdapter();
            lv.setAdapter(ma);
            lv.setOnItemClickListener(this); 
            lv.setItemsCanFocus(false);
            lv.setTextFilterEnabled(true);
            // adding
           select = (Button) findViewById(R.id.button1);
        select.setOnClickListener(new OnClickListener()
        {

            @Override
            public void onClick(View v) {
                  StringBuilder checkedcontacts= new StringBuilder();
                System.out.println(".............."+ma.mCheckStates.size());
                for(int i = 0; i < name1.size(); i++)

                    {
                    if(ma.mCheckStates.get(i)==true)
                    {
                         checkedcontacts.append(name1.get(i).toString());
                         checkedcontacts.append("\n");

                    }
                    else
                    {
                        System.out.println("Not Checked......"+name1.get(i).toString());
                    }


                }

                Toast.makeText(Display.this, checkedcontacts,1000).show();
            }       
        });


    }
    @Override
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        // TODO Auto-generated method stub
         ma.toggle(arg2);
    }

    public  void getAllContacts(ContentResolver cr) {

        Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
        while (phones.moveToNext())
        {
          String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
          String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
          System.out.println(".................."+phoneNumber); 
          name1.add(name);
          phno1.add(phoneNumber);
        }

        phones.close();
     }
    class MyAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener
    {  private SparseBooleanArray mCheckStates;
       LayoutInflater mInflater;
        TextView tv1,tv;
        CheckBox cb;
        MyAdapter()
        {
            mCheckStates = new SparseBooleanArray(name1.size());
            mInflater = (LayoutInflater)Display.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }
        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return name1.size();
        }

        @Override
        public Object getItem(int position) {
            // TODO Auto-generated method stub
            return position;
        }

        @Override
        public long getItemId(int position) {
            // TODO Auto-generated method stub

            return 0;
        }

        @Override
        public View getView(final int position, View convertView, ViewGroup parent) {
            // TODO Auto-generated method stub
            View vi=convertView;
            if(convertView==null)
             vi = mInflater.inflate(R.layout.row, null); 
             TextView tv= (TextView) vi.findViewById(R.id.textView1);
             tv1= (TextView) vi.findViewById(R.id.textView2);
             cb = (CheckBox) vi.findViewById(R.id.checkBox1);
             tv.setText("Name :"+ name1.get(position));
             tv1.setText("Phone No :"+ phno1.get(position));
             cb.setTag(position);
             cb.setChecked(mCheckStates.get(position, false));
             cb.setOnCheckedChangeListener(this);

            return vi;
        }
         public boolean isChecked(int position) {
                return mCheckStates.get(position, false);
            }

            public void setChecked(int position, boolean isChecked) {
                mCheckStates.put(position, isChecked);
                System.out.println("hello...........");
                notifyDataSetChanged();
            }

            public void toggle(int position) {
                setChecked(position, !isChecked(position));
            }
        @Override
        public void onCheckedChanged(CompoundButton buttonView,
                boolean isChecked) {
            // TODO Auto-generated method stub

             mCheckStates.put((Integer) buttonView.getTag(), isChecked);         
        }   
    }   
}

显示.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

   <ListView
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:layout_above="@+id/button1"

       android:id="@+id/lv"/>

     <Button
         android:id="@+id/button1"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
         android:layout_centerHorizontal="true"
         android:text="Select" />

</RelativeLayout>

解释：

以上使用自定义适配器。具有 2 个文本视图和一个复选框的自定义布局row.xml为每一行膨胀。getAllContacts()将从联系人列表中获取所有联系人，并将它们存储在列表中。

自定义适配器以自定义布局显示每行的项目。

当您选中复选框并单击显示时，将显示带有所选联系人姓名的 toast。

快照

Answer 2

I think you should call cursor.moveToFirst() again before passing it to the SimpleCursorAdapter, as right now you're sending a "finished" cursor.

Besides that, your code seems fine. You can compare it to the code here, which does something similar (But with a user-defined database).