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PONavigation Drawer - Create New Fragment Instance every time or simply "refresh" data
 

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    <p>I'm having a bit of an argument with myself and I wanted to check with the rest of you which implementation is "best" in terms of better practices.</p> <p>Just like a basic Navigation Drawer app, mine has one main NavDrawerActivity that contains the NavDrawer itself, and a Frame Layout that I later replace. Then, I also have one Fragment called ListsFragment, that basically contains a ListView of data from a simple String ArrayList. Therefore, this ListsFragment <strong>always</strong> contains a basic list of Strings (meaning, I only ever need one fragment.java file).</p> <p>Now, in Google's example of the Navigation Drawer, they have something similar, where they have one Fragment that they simply replace with new content (replace as in, literally, FragmentManager.replace(etc)). This means that a new Fragment is reinstantiated each time we select an item from the NavDrawer. <strong>This is what I'm doing right now as well.</strong></p> <p>But I've been thinking whether or not doing this is "messy". Won't a cleaner way of doing this be:</p> <p>Create a method in the Fragment called <code>loadList(ArrayList&lt;String&gt; list)</code>, which basically replaces the contents of the ListView in the Fragment with the consumed list.</p> <p>After all, isn't this a "cheaper" operation cost than having to instantiate a new Fragment everytime? When I could just be "refreshing" the data through a single Fragment variable I'll maintain?</p> <p>So, my question is: Which is better? Or if "better" is too subjective: Which is more, "the Java/Android way". It'd be great to see what you think. Thanks!</p> <p><strong>TLDR:</strong> Which is better: Instantiating a new Fragment every time I select a new item from the NavDrawer or simply load new data through a public <code>loadData</code> method.</p> <p>EDIT: For those who want to see Google's NavDrawer example, the Example is downloadable here <a href="http://developer.android.com/training/implementing-navigation/nav-drawer.html" rel="nofollow">http://developer.android.com/training/implementing-navigation/nav-drawer.html</a></p>
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