简略的通过Intent读取联系人名字

简单的通过Intent读取联系人名字

public class ContactSelector extends Activity {
	public static final int	PICK_CONTACT	= 1;
	private Button			btnContacts;
	private TextView		txtContacts;

	@Override
	public 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() {

			@Override
			public void onClick(View arg0) {
				Intent intent = new Intent(Intent.ACTION_PICK, People.CONTENT_URI);
				startActivityForResult(intent, PICK_CONTACT);
			}
		});
	}

	@Override
	public 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