Android 开发第二弹：通讯录

MainActivity.java

package myapplication.nomasp.com.addressbook;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ListView;

public class MainActivity extends Activity {

    private ListView lvPhoneInfo;
    private PhoneAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        GetNumber.getNumber(this);
        lvPhoneInfo = (ListView)findViewById(R.id.lvPhoneInfo);
        adapter = new PhoneAdapter(GetNumber.lists,this);
        lvPhoneInfo.setAdapter(adapter);
    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

GetNumber.java

package myapplication.nomasp.com.addressbook;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by nomasp on 2015/09/22.
 */

public class GetNumber
{
    public static List<PhoneInfo> lists = new ArrayList<PhoneInfo>();
    public static String getNumber(Context context){
        Cursor cursor = context.getContentResolver().query(Phone.CONTENT_URI, null, null, null, null);
        String phoneNumber;
        String phoneName;
        ContentResolver resolver = context.getContentResolver();
        while (cursor.moveToNext()) {
            phoneNumber = cursor.getString(cursor.getColumnIndex(Phone.NUMBER));
            phoneName = cursor.getString(cursor.getColumnIndex(Phone.DISPLAY_NAME));
            PhoneInfo phoneInfo = new PhoneInfo(phoneNumber,phoneName);
            lists.add(phoneInfo);
        }
        return null;
    }
}

PhoneInfo.java

package myapplication.nomasp.com.addressbook;

import android.graphics.Bitmap;

/**
 * Created by nomasp on 2015/09/22.
 */
public class PhoneInfo
{
    private String name;
    private String number;

    public PhoneInfo(String number, String name) {
        this.number = number;
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getNumber() {
        return number;
    }

    public void setNumber(String number) {
        this.number = number;
    }
}

package myapplication.nomasp.com.addressbook;

import android.content.Context;
import android.media.Image;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import java.util.List;
import java.util.concurrent.TimeoutException;

/**
 * Created by nomasp on 2015/09/22.
 */

public class PhoneAdapter extends BaseAdapter
{
    private List<PhoneInfo> lists;
    private Context context;
    private LinearLayout layout;

    public PhoneAdapter(List<PhoneInfo> lists, Context context) {
        this.lists = lists;
        this.context = context;
    }

    @Override
    public int getCount() {
        return lists.size();
    }

    @Override
    public Object getItem(int position) {
        return lists.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if(convertView==null){
            convertView = LayoutInflater.from(context).inflate(R.layout.cell,null);
            holder = new ViewHolder();
            holder.tvName = (TextView)convertView.findViewById(R.id.tvName);
            holder.tvNumber = (TextView)convertView.findViewById(R.id.tvNumber);
            holder.ivPicture = (ImageView)convertView.findViewById(R.id.ivPicture);
            holder.tvName.setText(lists.get(position).getName());
            holder.tvNumber.setText(lists.get(position).getNumber());
            convertView.setTag(holder);
        }else{
            holder = (ViewHolder)convertView.getTag();
            holder.tvName.setText(lists.get(position).getName());
            holder.tvNumber.setText(lists.get(position).getNumber());
        }
        return convertView;
    }

    private static class ViewHolder{
        TextView tvName;
        TextView tvNumber;
        ImageView ivPicture;
    }
}

activity_main.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:id="@+id/lvPhoneInfo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true" />

</RelativeLayout>

cell.xml

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

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/ivPicture"
            android:layout_width="45dp"
            android:layout_height="45dp"/>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center_vertical"
            android:orientation="horizontal">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/tvName"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="TextView"
                    android:textSize="15sp"/>

                <TextView
                    android:id="@+id/tvNumber"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="TextView"
                    android:textSize="11sp"/>
            </LinearLayout>

        </LinearLayout>

    </LinearLayout>

</LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="myapplication.nomasp.com.addressbook"
    android:versionCode="1"
    android:versionName="1.0" >

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

    <uses-sdk
        android:minSdkVersion="14"
        android:maxSdkVersion="22"
        android:targetSdkVersion="21"/>
    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.WRITE_CONTACTS"/>

</manifest>