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The source code is released under:
MIT License
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package kaka.android.dn; /* w w w. j a v a2 s . co m*/ import android.content.Intent; import android.os.Bundle; import android.app.Activity; import android.support.v4.app.NavUtils; import android.view.MenuItem; /** * An activity representing a single NewsItem 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 NewsItemListActivity}. * <p> * This activity is mostly just a 'shell' activity containing nothing * more than a {@link NewsItemDetailFragment}. */ public class NewsItemDetailActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_newsitem_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.putString(NewsItemDetailFragment.ARG_ITEM_ID, getIntent().getStringExtra(NewsItemDetailFragment.ARG_ITEM_ID)); NewsItemDetailFragment fragment = new NewsItemDetailFragment(); fragment.setArguments(arguments); getFragmentManager().beginTransaction() .add(R.id.newsitem_detail_container, fragment) .commit(); } } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == android.R.id.home) { // This ID represents the Home or Up button. In the case of this // activity, the Up button is shown. Use NavUtils to allow users // to navigate up one level in the application structure. For // more details, see the Navigation pattern on Android Design: // // http://developer.android.com/design/patterns/navigation.html#up-vs-back // NavUtils.navigateUpTo(this, new Intent(this, NewsItemListActivity.class)); return true; } return super.onOptionsItemSelected(item); } @Override public void finish() { super.finish(); overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out); } }