Android开发学习
Android开发中,需要读取手机中的通讯录。
新建布局文件:activity_main.xml,代码内容:(显示的列表)
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/LinearLayout01" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ListView android:id="@+id/list_userinfo" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout>
新建布局文件:list_item.xml,代码内容:(显示的列表内容)
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="0dip" android:layout_marginTop="0dip" android:gravity="center" android:orientation="horizontal" > <LinearLayout android:layout_width="70dip" android:layout_height="wrap_content" android:orientation="vertical" > <ImageView android:id="@+id/user_photo" android:layout_width="70dip" android:layout_height="70dip" android:background="@drawable/ic_launcher" /> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="70dip" android:layout_weight="1" android:gravity="center" android:orientation="vertical" > <TextView android:id="@+id/user_name" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="8dip" android:layout_weight="1" android:ellipsize="marquee" android:singleLine="true" android:text="zhdc" android:textSize="15dip" /> <TextView android:id="@+id/user_tel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginBottom="5dip" android:layout_weight="1" android:ellipsize="marquee" android:singleLine="true" android:text="15887805454" android:textSize="20dip" /> </LinearLayout> </LinearLayout>
实现的MainActivity.java代码如下:(读取通讯录信息并显示成列表)
package com.zhengdecai.readaddbook;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Contacts.Photo;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
/**
* 读取通讯录信息
*
* @author 郑德才
*
*/
public class MainActivity extends Activity {
ListView mListView = null;
MyAdapter myAdapter = null;
Context mContext = null;
private List<UserInfo> lUserInfo;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = this;
mListView = (ListView) findViewById(R.id.list_userinfo);
lUserInfo = new ArrayList<UserInfo>();
getUserInfo();
myAdapter = new MyAdapter(this, lUserInfo);
mListView.setAdapter(myAdapter);
mListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view,
int position, long id) {
// 调用系统方法拨打电话
Intent dialIntent = new Intent(Intent.ACTION_CALL, Uri
.parse("tel:" + lUserInfo.get(position).getUserTel()));
startActivity(dialIntent);
}
});
}
private void getUserInfo() {
getPhoneContacts();
getSIMContacts();
}
/** 获取库Phon表字段 **/
private static final String[] PHONES_PROJECTION = new String[] {
Phone.DISPLAY_NAME, Phone.NUMBER, Photo.PHOTO_ID, Phone.CONTACT_ID };
/** 联系人显示名称 **/
private static final int PHONES_DISPLAY_NAME_INDEX = 0;
/** 电话号码 **/
private static final int PHONES_NUMBER_INDEX = 1;
/** 头像ID **/
private static final int PHONES_PHOTO_ID_INDEX = 2;
/** 联系人的ID **/
private static final int PHONES_CONTACT_ID_INDEX = 3;
/** 得到手机通讯录联系人信息 **/
private void getPhoneContacts() {
ContentResolver resolver = mContext.getContentResolver();
// 获取手机联系人
Cursor phoneCursor = resolver.query(Phone.CONTENT_URI,
PHONES_PROJECTION, null, null, null);
if (phoneCursor != null) {
while (phoneCursor.moveToNext()) {
// 得到手机号码
String phoneNumber = phoneCursor.getString(PHONES_NUMBER_INDEX);
// 当手机号码为空的或者为空字段 跳过当前循环
if (TextUtils.isEmpty(phoneNumber))
continue;
// 得到联系人名称
String contactName = phoneCursor
.getString(PHONES_DISPLAY_NAME_INDEX);
// 得到联系人ID
Long contactid = phoneCursor.getLong(PHONES_CONTACT_ID_INDEX);
// 得到联系人头像ID
Long photoid = phoneCursor.getLong(PHONES_PHOTO_ID_INDEX);
// 得到联系人头像Bitamp
Bitmap contactPhoto = null;
// photoid 大于0 表示联系人有头像 如果没有给此人设置头像则给他一个默认的
if (photoid > 0) {
Uri uri = ContentUris.withAppendedId(
ContactsContract.Contacts.CONTENT_URI, contactid);
InputStream input = ContactsContract.Contacts
.openContactPhotoInputStream(resolver, uri);
contactPhoto = BitmapFactory.decodeStream(input);
} else {
contactPhoto = BitmapFactory.decodeResource(getResources(),
R.drawable.ic_launcher);
}
UserInfo userInfo = new UserInfo();
userInfo.setUserId(contactid);
userInfo.setUserName(contactName);
userInfo.setUserTel(phoneNumber);
lUserInfo.add(userInfo);
}
phoneCursor.close();
}
}
/** 得到手机SIM卡联系人人信息 **/
private void getSIMContacts() {
ContentResolver resolver = mContext.getContentResolver();
// 获取Sims卡联系人
Uri uri = Uri.parse("content://icc/adn");
Cursor phoneCursor = resolver.query(uri, PHONES_PROJECTION, null, null,
null);
if (phoneCursor != null) {
while (phoneCursor.moveToNext()) {
// 得到手机号码
String phoneNumber = phoneCursor.getString(PHONES_NUMBER_INDEX);
// 当手机号码为空的或者为空字段 跳过当前循环
if (TextUtils.isEmpty(phoneNumber))
continue;
// 得到联系人名称
String contactName = phoneCursor
.getString(PHONES_DISPLAY_NAME_INDEX);
// Sim卡中没有联系人头像
UserInfo userInfo = new UserInfo();
Long contactid = 0L;
userInfo.setUserId(contactid);
userInfo.setUserName(contactName);
userInfo.setUserTel(phoneNumber);
lUserInfo.add(userInfo);
}
phoneCursor.close();
}
}
class MyAdapter extends BaseAdapter {
/*
* private String aimage; private String atitle; private String
* asummary; private String adatetime; private String alink;
*/
private List<UserInfo> alist;
private LayoutInflater mInflater;
private Map<Integer, View> viewMap = new HashMap<Integer, View>();
public MyAdapter(Activity activity, List<UserInfo> list) {
super();
alist = list;
mInflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return alist.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return alist.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View v = viewMap.get(parent);
if (v == null) {
UserInfo user = alist.get(position);
v = mInflater.inflate(R.layout.list_item, null);
TextView user_Name = (TextView) v.findViewById(R.id.user_name);
TextView user_Tel = (TextView) v.findViewById(R.id.user_tel);
user_Name.setText(user.getUserName());
user_Tel.setText(user.getUserTel());
final Bitmap userPhoto = user.getUserPhoto();
final ImageView user_Photo = (ImageView) v
.findViewById(R.id.user_photo);
if (userPhoto != null) {
user_Photo.setBackgroundDrawable(new BitmapDrawable(
userPhoto));
}
viewMap.put(position, v);
}
return v;
}
}
}实现的UserInfo.java代码如下:(通讯录使用的实体)
package com.zhengdecai.readaddbook;
import android.graphics.Bitmap;
public class UserInfo {
public Long userId;
public String userName;
public String userTel;
public Bitmap userPhoto;
public Long getUserId() {
return userId;
}
public String getUserName() {
return userName;
}
public String getUserTel() {
return userTel;
}
public Bitmap getUserPhoto() {
return userPhoto;
}
public void setUserId(Long userId) {
this.userId = userId;
}
public void setUserName(String userName) {
this.userName = userName;
}
public void setUserTel(String userTel) {
this.userTel = userTel;
}
public void setUserPhoto(Bitmap userPhoto) {
this.userPhoto = userPhoto;
}
}需要增加读取权限:
<!-- 读取联系人权限 -->
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<!-- 拨打电话权限 -->
<uses-permission android:name="android.permission.CALL_PHONE"/>
实现运行效果图:


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