第三章:取得联系人资料

效果:













main.xml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
android:id="@+id/widget0"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<EditText
android:id="@+id/name"
android:layout_width="92px"
android:layout_height="wrap_content"
android:textSize="18sp"
android:layout_x="24px"
android:layout_y="35px"
>
</EditText>
<EditText
android:id="@+id/number"
android:layout_width="268px"
android:layout_height="wrap_content"
android:textSize="18sp"
android:layout_x="23px"
android:layout_y="87px"
>
</EditText>
<Button
android:id="@+id/sreach"
android:layout_width="57px"
android:layout_height="wrap_content"
android:text="&#25628;&#32034;"
android:layout_x="26px"
android:layout_y="142px"
>
</Button>
<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="21px"
android:layout_y="202px"
>

</TextView>
</AbsoluteLayout>

AndroidManifest.xml

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

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        
        <activity android:name=".ProviderTest"
                  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-permission android:name="android.permission.READ_CONTACTS"></uses-permission>
</manifest> 

package provider.test;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.PhoneLookup;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class ProviderTest extends Activity {
	private EditText name;
	private EditText number;
	private Button search;
	private TextView text;
	private static final int PICK_CONTACT_SUNACTIVITY=2;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        /** 载入Main.xml*/
        setContentView(R.layout.main);
        /** 通过id找到组件*/
        name=(EditText)findViewById(R.id.name);
        number=(EditText)findViewById(R.id.number);
        text=(TextView)findViewById(R.id.text);
        search=(Button)findViewById(R.id.sreach);
        /** 设置button按钮点击事件*/
        search.setOnClickListener(new Button.OnClickListener(){
        	public void onClick(View v){
        		 /** 构建uri来取的联系人数据位置*/
        		Uri uri=Uri.parse("content://contacts/people");
        		 /** 通过intent来取的联系人数据返回的所选的值*/
        		Intent intent=new Intent(Intent.ACTION_PICK,uri);
        		/** 打开新的Activity并期望Activity返回值*/
        		startActivityForResult(intent, PICK_CONTACT_SUNACTIVITY);
        	}
        });
    }
    
    protected void onActivityResult(int requestCode,int resultCode,Intent data){
    	switch(requestCode){
    	case PICK_CONTACT_SUNACTIVITY:
    		Cursor c=null;
    		Cursor phone =null;
    		/** 获得uri对象*/
    		final Uri uriRet=data.getData();
    		if(uriRet!=null){
    			try {
    				/** 必须要有android.permission.READ_CONTACTS权限*/
    				c=managedQuery(uriRet, null, null, null, null);
    				/**将Currsor一道数据最前端*/
    				c.moveToFirst();
    				/**获得联系人名字*/
    				String strname=c.getString(c.getColumnIndexOrThrow(PhoneLookup.DISPLAY_NAME));
    				
    				/**（如果你使用的是2.0或2.0以上的API那么获得联系人号码）
    				 * 
    				 * 获取联系人的ID号，在SQLite中的数据库ID
    				 * */
    				String contactId = c.getString(c.getColumnIndex(ContactsContract.Contacts._ID));
    				phone = managedQuery(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = "  
    				         + contactId, null, null);
    				 String strPhoneNumber=null;
    				 phone.moveToFirst();
    				 /**获得联系人号码*/
    				      strPhoneNumber = phone.getString(phone.getColumnIndex (ContactsContract.CommonDataKinds.Phone.NUMBER)); 
    				      /**设置两个EditText参数*/
    				name.setText(strname);
    				number.setText(strPhoneNumber);
				} catch (Exception e) {
					 /**将错误信息显示出来*/
					text.setText(e.toString());
					e.printStackTrace();
				}finally{
					 /**关闭对象*/
					phone.close();
					c.close();
				}
    		}
    		break;
    	}
    	super.onActivityResult(requestCode, resultCode, data);
    }
}

使用Content Provider

查询所有通讯录数据:

content://contacts/people

查询通讯录的特定联系人ID:10

content://contacts/people/10

修改Content provider里的数据

ContentResolver.update();

添加一项数据进入 Content Provider

ContentResolvert.insert();

将数据存储至Content Provider:

ContentResolver().openOutputStream();

自Provider以删除一笔数据:

ContentResolver.delete();