package hk.hku.cs.srli.monkeydemo;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import hk.hku.cs.srli.monkeydemo.demo.DemoContent;
import hk.hku.cs.srli.monkeydemo.demo.DemoFragmentBase;
/**
* An activity representing a list of demos. This activity has different
* presentations for handset and tablet-size devices. On handsets, the activity
* presents a list of items, which when touched, lead to a
* {@link SingleDemoActivity} representing item details. On tablets, the
* activity presents the list of items and item details side-by-side using two
* vertical panes.
* <p>
* The activity makes heavy use of fragments. The list of items is a
* {@link DemoListFragment} and the item details (if present) is a
* {@link DemoFragmentBase}.
* <p>
* This activity also implements the required {@link DemoListFragment.Callbacks}
* interface to listen for item selections.
*/
public class DemoListActivity extends Activity
implements DemoListFragment.Callbacks {
/**
* Whether or not the activity is in two-pane mode, i.e. running on a tablet
* device.
*/
private boolean mTwoPane;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_demo_list);
getActionBar().setSubtitle("Powered by Monkey");
if (findViewById(R.id.single_demo_container) != null) {
// The detail container view will be present only in the
// large-screen layouts (res/values-large and
// res/values-sw600dp). If this view is present, then the
// activity should be in two-pane mode.
mTwoPane = true;
// In two-pane mode, list items should be given the
// 'activated' state when touched.
((DemoListFragment) getFragmentManager()
.findFragmentById(R.id.demo_list))
.setActivateOnItemClick(true);
}
}
/**
* Callback method from {@link DemoListFragment.Callbacks} indicating that
* the item with the given ID was selected.
*/
@Override
public void onItemSelected(String id) {
if (mTwoPane) {
// In two-pane mode, show the detail view in this activity by
// adding or replacing the detail fragment using a
// fragment transaction.
Bundle arguments = new Bundle();
arguments.putString(DemoFragmentBase.ARG_ITEM_ID, id);
DemoFragmentBase fragment = DemoContent.ITEM_MAP.get(id).fragment;
if (!fragment.isAdded()) {
// do this only if the fragment is not added
fragment.setArguments(arguments);
getFragmentManager().beginTransaction()
.replace(R.id.single_demo_container, fragment)
.commit();
}
} else {
// In single-pane mode, simply start the detail activity
// for the selected item ID.
Intent detailIntent = new Intent(this, SingleDemoActivity.class);
detailIntent.putExtra(DemoFragmentBase.ARG_ITEM_ID, id);
startActivity(detailIntent);
}
}
}