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    <p>Android provides a simple way to switch between activities using a TabHost. You can also use it to switch between Fragments as explained under <a href="http://developer.android.com/reference/android/app/TabActivity.html" rel="nofollow">TabActivity</a>. Alternatively, you can add a FrameLayout to your activity, programmatically instantiate the fragments and attach/show/hide them when needed.</p> <p>Your res/layout/main.xml would look like this:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="fill_parent" android:layout_width="match_parent" android:id="@+id/mainframe"&gt; &lt;/FrameLayout&gt; </code></pre> <p>And assuming the v4 support library is used, your activity would look like this:</p> <pre><code>public MyActivity extends FragmentActivity { private Fragment mListFrag; private Fragment mGameFrag; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mListFrag = new MyListFragment(); mGameFrag = new MyGameFragment(); FragmentManager fm = getSupportFragmentManager(); fm.beginTransaction() .add( R.id.mainframe, mListFrag, MyListFragment.class.getName()) .add( R.id.mainframe, mGameFrag, MyGameFragment.class.getName()) .detach(mGameFrag) .commit(); fm.executePendingTransactions(); } public void showList() { getSupportFragmentManager().beginTransaction() .hide(mGameFrag) .show(mListFrag) .commit(); } public void showGame() { FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); if (mGameFrag.isDetached()) { ft.attach(mGameFrag); } ft.hide(mListFrag).show(mGameFrag).commit(); } } </code></pre> <p>Observe that MyGameFragment.onCreateView isn't called until it is first attached. After that, hiding and showing the fragments allows the user to switch without delay.</p> <p>Edit: I realise now you wanted 2 activities with their own button. I've updated the code to reflect this. From the OnClickListeners simply call the relevant activity functions like so:</p> <p><code>((MyActivity) MyListFragment.this.getActivity()).showGame();</code></p>
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    1. COI also found one other solution too: using android:launchMode="singleInstance" in the manifest.xml also caused the screen to function like a singleton. only one instance of the activity was ever created. But the tabs actually keep them both open and work the fastest. So I accepted that answer.
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    2. COsingleInstance does funny things, try launching your app and background it with the home button. Do that a couple of times and then try pressing the back button to return where you came from.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

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