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); } } }