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POGetting string resources throws NullPointerException
 

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  1. POGetting string resources throws NullPointerException
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    <p>I have a list of events for specific dates in my calendar. </p> <pre><code>public ArrayList&lt;Event&gt; eventDetails(int m, int d) { ArrayList&lt;Event&gt; events = new ArrayList&lt;Event&gt;(); switch (m) { case 1: if (d == 1) { events.add(new Event("Event in Date 1", null, null, null, null, null, null, null)); } } return events } </code></pre> <p>I wanted to convert the hard-coded text to a string resource which I did:</p> <p>This:</p> <pre><code>events.add(new Event("Event in Date 1", null, null, null, null, null, null, null)); </code></pre> <p>To:</p> <pre><code>events.add(new Event(getResources().getString(R.string.text1), null, null, null, null, null, null, null)); </code></pre> <p>The problem, however, is that I'm getting a NullPointerException at <code>getResources().getString(R.string.text1)</code>. </p> <p>I realized that I had to pass context to get the String resource, so:</p> <pre><code>_context.getResources().getString(R.string.text1) </code></pre> <p>However, this still threw a NullPointerException. I declared <code>Context</code> static but it didn't work.</p> <p>What is wrong with the code?</p> <p><strong>Code:</strong></p> <pre><code>public class CalendarEvents extends Activity { private static Context _context; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.events); _context = this.getApplicationContext(); } public ArrayList&lt;Event&gt; eventDetails(int m, int d) { ArrayList&lt;Event&gt; events = new ArrayList&lt;Event&gt;(); switch (m) { case 1: if (d == 1) { events.add(new Event(_context.getResources().getString(R.string.text1), null, null, null, null, null, null, null)); } } return events } } </code></pre>
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    1. COYou shouldn't save the context. Activity extends Context so you always have the context reference you need. Context also has a getString(resourceId) method so you shouldn't have to use getResources(). new Event(getString(R.string.text1), ...) should be sufficient.
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      1. USDouglas Jones
    2. COAlso if you are using a command-line build did you make sure to do a clean build? Resource changes are not detected by the build system to regenerate the resources.
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    3. COAre you sure the null pointer exception is only because of getResources() method?
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      1. USknvarma
 

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