Go语言视频零基础入门到精通

8jnuj3

    我们来看看怎么样才能在android本机里获取联系人，废话不多说了，还是把代码贴出来让大家来看看吧：

java代码： package eoe.demo;





import android.app.Activity;

import android.app.AlertDialog;

import android.content.ContentResolver;

import android.database.Cursor;

import android.os.Bundle;

import android.provider.Contacts;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ListView;

import android.widget.SimpleCursorAdapter;



public class ContentPv extends Activity {

ListView lv;

Cursor c;

// 此处定义了将要被查询的字段列表

String[] persons = new String[]{

Contacts.People._ID,

Contacts.People.NUMBER,

Contacts.People.NAME};



@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

lv = (ListView)findViewById(R.id.lv);

ContentResolver cr = this.getContentResolver();

// 查询指定条件的联系人，此处规定了查询条件为电话号码不为空

c = cr.query(Contacts.People.CONTENT_URI, persons, Contacts.People.NUMBER + " is not null", null, Contacts.People.DEFAULT_SORT_ORDER);

c.moveToFirst();

// 建立Adapter并灌入ListView

SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,

R.layout.list, c, new String[] { Contacts.People.NAME },

new int[] { R.id.TextView01 });

lv.setAdapter(adapter);

}

}
复制代码与此同时在Manifest.xml配置允许读取联系人的权限
<uses-permission android:name="android.permission.READ_CONTACTS"></uses-permission>

        程序运行后效果如图所示，我在ListView上添加了一个OnItemClick监听器，点击时弹出指定联系人的电话号码，代码也很简单

java代码： c.moveToPosition(position);

new AlertDialog.Builder(this).setTitle("Hint").setMessage(c.getString(c.getColumnIndexOrThrow(Contacts.People.NUMBER))).setPositiveButton("OK", null).show();
复制代码

jjuiwe

能查找出号码吗？android2.2版本号码查找方法又不一样了！