java代码如下：
import android.content.ContentResolver;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
ArrayAdapter<String> adapter;
ListView listView;
ArrayList<String> contactslist = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
public void Click(View v) {
listView = (ListView) findViewById(R.id.LV);
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, contactslist);
listView.setAdapter(adapter);
contactslist.add(“测试ListView”);
Cursor cursor = null;
try {
cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
while (cursor.moveToNext()) {
//获取姓名
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
Log.d(“MainActivity”, name);
//获取号码
String number = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Log.d(“MainActivity”, number);
contactslist.add(name + “:” + number);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (cursor != null)
cursor.close();
}
}
}
布局文件：
<?xml version=”1.0″ encoding=”utf-8″?>
<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android”
xmlns:app=”http://schemas.android.com/apk/res-auto”
xmlns:tools=”http://schemas.android.com/tools”
android:layout_width=”match_parent”
android:layout_height=”match_parent”
android:orientation=”vertical”>
<android.support.v7.widget.Toolbar
android:id=”@+id/toolbar”
android:layout_width=”match_parent”
android:layout_height=”?attr/actionBarSize”
android:background=”?attr/colorPrimary”/>
<Button
android:layout_width=”match_parent”
android:layout_height=”wrap_content”
android:text=”读取”
android:textSize=”16pt”
android:onClick=”Click”/>
<ListView
android:layout_width=”match_parent”
android:layout_height=”match_parent”
android:id=”@+id/LV”>
</ListView>
</LinearLayout>