实时文件夹

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
	package="com.studio.android.ch10.ex2" android:versionCode="1"
	android:versionName="1.0">
	<application android:icon="@drawable/icon" android:label="@string/app_name">
		<activity android:name=".MyAllContacts" android:label="@string/app_name">
			<intent-filter>
				<action android:name="android.intent.action.CREATE_LIVE_FOLDER" />
				<category android:name="android.intent.category.DEFAULT" />
			</intent-filter>
		</activity>
	</application>
	<uses-sdk android:minSdkVersion="3" />
</manifest>

public class MyAllContacts extends Activity {

	//查询联系人URI
	public static final Uri LIVE_FOLDER_URI = Uri
			.parse("content://contacts/live_folders/people");

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		if (getIntent().getAction().equals(
				LiveFolders.ACTION_CREATE_LIVE_FOLDER)) {

			Intent intent = new Intent();

			//设置实时文件查询数据的URI
			intent.setData(LIVE_FOLDER_URI);
			intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT,
							new Intent(Intent.ACTION_VIEW,
									Contacts.People.CONTENT_URI));
			//实时文件夹显示的名称
			intent
					.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME,
							"MyAllContacts");
			//实时文件夹显示的图标
			intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON,
					Intent.ShortcutIconResource.fromContext(this,
							R.drawable.icon));
			//实时文件夹内容的展现形式，
			//其值为1时，以栅格(Grid)形式显示展开后的实时文件夹内容，为2时则是以列表(List)形式显示。
			intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
					LiveFolders.DISPLAY_MODE_LIST);

			setResult(RESULT_OK, intent);
		} else {
			setResult(RESULT_CANCELED);
		}

		finish();
	}
}