Android Open Source - masterdetail-j2objc-swift Master Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2014 Kirk C. Vogen//from ww w .  j a va 2s .com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package masterdetail.android;

import masterdetail.android.service.LocalStorageService;
import masterdetail.model.DetailEntry;
import masterdetail.service.FlatFileDetailService;
import masterdetail.service.DetailService;
import masterdetail.service.StorageService;
import masterdetail.android.R;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;


/**
 * An activity representing a list of detail entries. 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 DetailActivity} 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 MasterFragment} and the
 * item details (if present) is a {@link DetailFragment}.
 * <p>
 * This activity also implements the required {@link MasterFragment.Callbacks} interface to listen
 * for item selections.
 */
public class MasterActivity extends Activity
    implements MasterFragment.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_master);

    if (findViewById(R.id.masterdetail_detail_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.
      ((MasterFragment) getFragmentManager()
          .findFragmentById(R.id.masterdetail_list))
          .setActivateOnItemClick(true);
    }

    // TODO: If exposing deep links into your app, handle intents here.
  }

  /**
   * Callback method from {@link MasterFragment.Callbacks} indicating that the item with the given
   * ID was selected.
   */
  @Override
  public void onItemSelected(int 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.putInt(DetailFragment.ARG_ITEM_ID, id);
      DetailFragment fragment = new DetailFragment();
      fragment.setArguments(arguments);
      getFragmentManager().beginTransaction()
          .replace(R.id.masterdetail_detail_container, fragment)
          .commit();

    } else {
      // In single-pane mode, simply start the detail activity for the selected item ID.
      Intent detailIntent = new Intent(this, DetailActivity.class);
      detailIntent.putExtra(DetailFragment.ARG_ITEM_ID, id);
      startActivity(detailIntent);
    }
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu items for use in the action bar
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.activity_master_actions, menu);
    return super.onCreateOptionsMenu(menu);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.action_new:
      StorageService storageService = new LocalStorageService(this);
      DetailService detailService = new FlatFileDetailService(storageService);
      DetailEntry list = detailService.create();
      int id = list.getId();
      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.putInt(DetailFragment.ARG_ITEM_ID, id);
        DetailFragment fragment = new DetailFragment();
        fragment.setArguments(arguments);
        getFragmentManager().beginTransaction()
            .replace(R.id.masterdetail_detail_container, fragment)
            .commit();

      } else {
        // In single-pane mode, simply start the detail activity for the selected item ID.
        Intent detailIntent = new Intent(this, DetailActivity.class);
        detailIntent.putExtra(DetailFragment.ARG_ITEM_ID, id);
        startActivity(detailIntent);
      }
      return true;
    default:
      return super.onOptionsItemSelected(item);
    }
  }
}

Java Source Code List

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