Android Open Source - masterdetail-j2objc-swift Detail Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2014 Kirk C. Vogen/*  w  ww .  j  a  v  a2s  .  c  om*/
 *
 * 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.viewmodel.ViewModelListener;
import masterdetail.viewmodel.DetailViewModel;
import masterdetail.android.R;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.support.v4.app.TaskStackBuilder;
import android.view.MenuItem;
import android.widget.EditText;


/**
 * An activity representing a single DetailEntry detail screen. This activity is only used on
 * handset devices. On tablet-size devices, item details are presented side-by-side with a list of
 * items in a {@link MasterActivity}.
 * <p>
 * This activity is mostly just a 'shell' activity containing nothing more than a
 * {@link DetailFragment}.
 */
public class DetailActivity extends Activity
implements ViewModelListener<DetailViewModel> {

  private DetailViewModel viewModel;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_detail);

    // Show the Up button in the action bar.
    getActionBar().setDisplayHomeAsUpEnabled(true);

    // savedInstanceState is non-null when there is fragment state saved from previous
    // configurations of this activity (e.g. when rotating the screen from portrait to
    // landscape). In this case, the fragment will automatically be re-added to its container so
    // we don't need to manually add it. For more information, see the Fragments API guide at:
    //
    // http://developer.android.com/guide/components/fragments.html
    //
    if (savedInstanceState == null) {
      // Create the detail fragment and add it to the activity using a fragment transaction.
      Bundle arguments = new Bundle();
      arguments.putInt(DetailFragment.ARG_ITEM_ID,
          getIntent().getIntExtra(DetailFragment.ARG_ITEM_ID, 0));
      DetailFragment fragment = new DetailFragment();
      fragment.setArguments(arguments);
      getFragmentManager().beginTransaction()
          .add(R.id.masterdetail_detail_container, fragment)
          .commit();
    }
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();
    if (id == android.R.id.home) {
      
      final EditText title = (EditText) findViewById(R.id.masterdetail_detail_title);
      final EditText words = (EditText) findViewById(R.id.masterdetail_detail_words);

      viewModel.save(title.getText().toString(), words.getText().toString());
      
      Intent upIntent = NavUtils.getParentActivityIntent(this);
      if (NavUtils.shouldUpRecreateTask(this, upIntent)) {
        // This activity is NOT part of this app's task, so create a new task when
        // navigating up, with a synthesized back stack.
        TaskStackBuilder.create(this)
            // Add all of this activity's parents to the back stack
            .addNextIntentWithParentStack(upIntent)
            // Navigate up to the closest parent
            .startActivities();
      } else {
        // This activity is part of this app's task, so simply navigate up to the logical
        // parent activity.
        NavUtils.navigateUpTo(this, upIntent);
      }
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  public void onViewModelCreated(DetailViewModel viewModel) {
    this.viewModel = viewModel;
  }
}

Java Source Code List

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