简单的通过Intent读取联系人名字
public class ContactSelector extends Activity {public static final intPICK_CONTACT= 1;private ButtonbtnContacts;private TextViewtxtContacts;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);btnContacts = (Button) findViewById(R.id.btn_contacts);txtContacts = (TextView) findViewById(R.id.txt_contacts);btnContacts.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {Intent intent = new Intent(Intent.ACTION_PICK, People.CONTENT_URI);startActivityForResult(intent, PICK_CONTACT);}});}@Overridepublic void onActivityResult(int reqCode, int resultCode, Intent data) {super.onActivityResult(reqCode, resultCode, data);switch (reqCode) {case (PICK_CONTACT):if (resultCode == Activity.RESULT_OK) {Uri contactData = data.getData();Cursor c = managedQuery(contactData, null, null, null, null);if (c.moveToFirst()) {String name = c.getString(c.getColumnIndexOrThrow(People.NAME));txtContacts.setText(name);}}break;}}}?首先我们通过Intent intent = new Intent(Intent.ACTION_PICK, People.CONTENT_URI);
启动一个startActivityForResult(intent, PICK_CONTACT);
并且让他返回一个信息，这个信息就是找到联系人菜单
?
然后通过onActivityResult(int reqCode, int resultCode, Intent data)? 提出我们要的信息，
其实不用说你也知道
Uri contactData = data.getData();
Cursor c = managedQuery(contactData, null, null, null, null);
if (c.moveToFirst()) {
String name = c.getString(c.getColumnIndexOrThrow(People.NAME));
txtContacts.setText(name);
}
这才是重点 这样就查找出第一个联系人的名字了。
这个实例主要是intent的用法，其中managedQuery第一个参数uri是通过intent获取的
当然这个uri不只是这一个方法