android 导入数据（通讯录）

接着android 中导出数据一文，下面介绍在android中导入数据的思路：

1、将数据从文本中读取出来

2、封装处理成自己想要的对象或模型

3、将处理好的数据对象插入自己应用的数据库中

4、更新UI显示

下面仍以导入联系人至系统中为例，若是导入自己的应用中，思路一样甚至更简单，代码如下：

注：我的联系人.txt的格式即为android 中导出数据一文生成的格式

MainActivity：

 package com.home.impcontact;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.IOException;

 import java.util.ArrayList;

 import android.app.Activity;

 import android.app.AlertDialog;

 import android.content.ContentUris;

 import android.content.ContentValues;

 import android.content.Context;

 import android.content.DialogInterface;

 import android.net.Uri;

 import android.os.Bundle;

 import android.os.Environment;

 import android.os.Handler;

 import android.os.Message;

 import android.provider.ContactsContract;

 import android.provider.ContactsContract.RawContacts;

 import android.provider.ContactsContract.CommonDataKinds.Phone;

 import android.provider.ContactsContract.CommonDataKinds.StructuredName;

 import android.provider.ContactsContract.Contacts.Data;

 import android.view.View;

 import android.view.View.OnClickListener;

 import android.widget.Button;

 import android.widget.TextView;

 import android.widget.Toast;

 public class MainActivity extends Activity implements OnClickListener {

     private Button btn;// 导入按钮

     private TextView show;// 显示结果的文本框

     private Thread addThread;// 增加联系人线程

     private static final int ADD_FAIL = 0;// 导入失败标识

     private static final int ADD_SUCCESS = 1;// 导入成功标识

     private static int successCount = 0;// 导入成功的计数

     private static int failCount = 0;// 导入失败的计数

     // 默认文件路劲，实际情况应作相应修改或从界面输入或浏览选择

     private static final String PATH = Environment

             .getExternalStorageDirectory() + "/我的联系人.txt";

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.main);

         init();

     }

     /**

      * 初始化组件

      */

     private void init() {

         btn = (Button) findViewById(R.id.main_btn);

         btn.setOnClickListener(this);

         show = (TextView) findViewById(R.id.main_tv);

     }

     @Override

     public void onClick(View v) {

         if (v == btn) {

             addContact();

         }

     }

     /**

      * 导入联系人入口

      */

     private void addContact() {

         if (!new File(PATH).exists()) {

             Toast.makeText(this, "文件不存在!", Toast.LENGTH_SHORT).show();

             show.setText("文件不存在!");

             return;

         }

         if (addThread != null) {

             addThread.interrupt();

             addThread = null;

         }

         addThread = new Thread(new AddRunnable(this, PATH));

         createDialog(this, "警告", "确保你是第一次导入，重复导入会创建新的联系人，请慎用！");

     }

     /**

      * 创建提示对话框

      *

      * @param context

      * @param title

      * @param message

      */

     private void createDialog(Context context, String title, String message) {

         AlertDialog.Builder builder = new AlertDialog.Builder(context);

         builder.setTitle(title);

         builder.setMessage(message);

         builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

             public void onClick(DialogInterface dialog, int whichButton) {

                 startAddContact();

             }

         });

         builder.setNeutralButton("取消", new DialogInterface.OnClickListener() {

             public void onClick(DialogInterface dialog, int whichButton) {

                 dialog.cancel();

             }

         });

         builder.show();

     }

     /**

      * 开启导入线程

      */

     private void startAddContact() {

         setAddWidgetEnabled(false);

         show.setText("正在导入联系人...");

         if (addThread != null) {

             addThread.start();

         }

     }

     class AddRunnable implements Runnable {

         private Context context;

         private String path;

         public AddRunnable(Context context, String path) {

             this.path = path;

             this.context = context;

         }

         @Override

         public void run() {

             boolean result = importContact(context, path);

             if (result) {

                 handler.sendEmptyMessage(ADD_SUCCESS);

             } else {

                 handler.sendEmptyMessage(ADD_FAIL);

             }

         }

     }

     /**

      * 处理UI相关的handler

      */

     private Handler handler = new Handler() {

         @Override

         public void handleMessage(Message msg) {

             switch (msg.what) {

             case ADD_FAIL:

                 show.setText("导入联系人失败");

                 setAddWidgetEnabled(true);

                 break;

             case ADD_SUCCESS:

                 show.setText(String.format("导入联系人成功 %d 条，失败 %d 条",

                         successCount, failCount));

                 setAddWidgetEnabled(true);

                 break;

             }

         }

     };

     /**

      * 设置导入组件的可用性

      *

      * @param enabled

      */

     private void setAddWidgetEnabled(boolean enabled) {

         btn.setEnabled(enabled);

         if (!enabled) {

             show.setText("");

         }

     }

     /**

      * 导入联系人

      *

      * @param context

      * @param path

      * @return

      */

     private boolean importContact(Context context, String path) {

         successCount = 0;

         failCount = 0;

         try {

             ArrayList<contactinfo> list = readFromFile(path);

             if (list == null) {

                 return false;

             }

             for (int i = 0; i < list.size(); i++) {

                 ContactInfo info = list.get(i);

                 if (doAddContact(context, info)) {

                     successCount++;

                 }

             }

         } catch (Exception e) {

             e.printStackTrace();

             return false;

         }

         return true;

     }

     /**

      * 读取联系人并封装成ContactInfo对象集合

      *

      * @param path

      * @return contactsList

      */

     private ArrayList<contactinfo> readFromFile(String path) {

         ArrayList<string> strsList = doReadFile(path);

         if (strsList == null) {

             return null;

         }

         ArrayList<contactinfo> contactsList = handleReadStrs(strsList);

         return contactsList;

     }

     /**

      * 将读出来的内容封装成ContactInfo对象集合

      *

      * @param strsList

      * @return

      */

     private ArrayList<contactinfo> handleReadStrs(ArrayList<string> strsList) {

         ArrayList<contactinfo> contactsList = new ArrayList<contactinfo>();

         for (int i = 0; i < strsList.size(); i++) {

             String info = strsList.get(i);

             String[] infos = info.split("\\s{2,}");

             String displayName = null;

             String mobileNum = null;

             String homeNum = null;

             switch (infos.length) {

             case 0:

                 continue;

             case 1:

                 displayName = infos[0];

                 break;

             case 2:

                 displayName = infos[0];

                 if (infos[1].length() >= 11) {

                     mobileNum = infos[1];

                 } else {

                     homeNum = infos[1];

                 }

                 break;

             default:

                 // length >= 3

                 displayName = infos[0];

                 mobileNum = infos[1];

                 homeNum = infos[2];

             }

             if (displayName == null || "".equals(displayName)) {

                 failCount++;

                 continue;

             }

             contactsList.add(new ContactInfo(displayName, mobileNum, homeNum));

         }

         return contactsList;

     }

     /**

      * 读取文件内容

      *

      * @param path

      * @return

      */

     private ArrayList<string> doReadFile(String path) {

         FileInputStream in = null;

         ArrayList<string> arrayList = new ArrayList<string>();

         try {

             byte[] tempbytes = new byte[1 << 24];

             in = new FileInputStream(path);

             while (in.read(tempbytes) != -1) {

                 int length = 0;

                 int first = length;

                 for (int i = 0; i < tempbytes.length; i++) {

                     if (tempbytes[i] == '\n') {

                         length = i;

                         byte[] nowBytes = new byte[length - first];

                         System.arraycopy(tempbytes, first, nowBytes, 0, length

                                 - first);

                         arrayList.add(new String(nowBytes, "utf-8").trim());

                         first = i + 1;

                     }

                 }

             }

         } catch (Exception e1) {

             return null;

         } finally {

             if (in != null) {

                 try {

                     in.close();

                 } catch (IOException e1) {

                     return null;

                 }

             }

         }

         return arrayList;

     }

     /**

      * 向数据库表插入联系人信息

      *

      * @param context

      * @param contactInfo

      * @return

      */

     private boolean doAddContact(Context context, ContactInfo contactInfo) {

         try {

             ContentValues contentValues = new ContentValues();

             Uri uri = context.getContentResolver().insert(

                     RawContacts.CONTENT_URI, contentValues);

             long rowId = ContentUris.parseId(uri);

             String name = contactInfo.getDisplayName();

             String mobileNum = contactInfo.getMobileNum();

             String homeNum = contactInfo.getHomeNum();

             // 插入姓名

             if (name != null) {

                 contentValues.clear();

                 contentValues.put(Data.RAW_CONTACT_ID, rowId);

                 contentValues.put(Data.MIMETYPE,

                         StructuredName.CONTENT_ITEM_TYPE);

                 int index = name.length() / 2;

                 String displayName = name;

                 String givenName = null;

                 String familyName = null;

                 // 检查是否是英文名称

                 if (checkEnglishName(displayName) == false) {

                     givenName = name.substring(index);

                     familyName = name.substring(0, index);

                 } else {

                     givenName = familyName = displayName;

                 }

                 contentValues.put(StructuredName.DISPLAY_NAME, displayName);

                 contentValues.put(StructuredName.GIVEN_NAME, givenName);

                 contentValues.put(StructuredName.FAMILY_NAME, familyName);

                 context.getContentResolver().insert(

                         ContactsContract.Data.CONTENT_URI, contentValues);

             }

             if (mobileNum != null) {

                 // 插入手机电话

                 contentValues.clear();

                 contentValues.put(Data.RAW_CONTACT_ID, rowId);

                 contentValues.put(Data.MIMETYPE, Phone.CONTENT_ITEM_TYPE);

                 contentValues.put(Phone.NUMBER, mobileNum);

                 contentValues.put(Phone.TYPE, Phone.TYPE_MOBILE);

                 context.getContentResolver().insert(

                         ContactsContract.Data.CONTENT_URI, contentValues);

             }

             if (homeNum != null) {

                 // 插入家庭号码

                 contentValues.clear();

                 contentValues.put(Data.RAW_CONTACT_ID, rowId);

                 contentValues.put(Data.MIMETYPE, Phone.CONTENT_ITEM_TYPE);

                 contentValues.put(Phone.NUMBER, homeNum);

                 contentValues.put(Phone.TYPE, Phone.TYPE_HOME);

                 context.getContentResolver().insert(

                         ContactsContract.Data.CONTENT_URI, contentValues);

             }

         } catch (Exception e) {

             return false;

         }

         return true;

     }

     /**

      * 检查是否是英文名称

      *

      * @param name

      * @return

      */

     private boolean checkEnglishName(String name) {

         char[] nameChars = name.toCharArray();

         for (int i = 0; i < nameChars.length; i++) {

             if ((nameChars[i] >= 'a' && nameChars[i] <= 'z')

                     || (nameChars[i] >= 'A' && nameChars[i] <= 'Z')) {

                 continue;

             }

             return false;

         }

         return true;

     }

 }

联系人实体类ContactInfo：

 package com.home.impcontact;

 public class ContactInfo {

     /** 名称 */

     private String displayName;

     /** 手机号 */

     private String mobileNum;

     /** 家庭电话 */

     private String homeNum;

     public ContactInfo(String displayName, String mobileNum, String homeNum) {

         this.displayName = displayName;

         this.mobileNum = mobileNum;

         this.homeNum = homeNum;

     }

     public String getDisplayName() {

         return displayName;

     }

     public String getMobileNum() {

         return mobileNum;

     }

     public String getHomeNum() {

         return homeNum;

     }

 }

布局文件：

 <?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="match_parent"

     android:orientation="vertical" >

     <Button

         android:id="@+id/main_btn"

         android:layout_width="match_parent"

         android:layout_height="wrap_content"

         android:text="导入联系人" >

     </Button>

         <TextView

             android:id="@+id/main_tv"

             android:layout_width="wrap_content"

             android:layout_height="wrap_content" >

         </TextView>

 </LinearLayout>

权限：

    <uses-permission android:name="android.permission.READ_CONTACTS">

    <uses-permission android:name="android.permission.WRITE_CONTACTS">

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE">

 </uses-permission></uses-permission></uses-permission>

转：http://www.2cto.com/kf/201401/272625.html

注：布局文件小改

巴特西

android 导入数据（通讯录）

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