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POExample of custom setDropDownViewResource spinner item
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  1. POExample of custom setDropDownViewResource spinner item
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    copied!<p>I would like to display two values in an drop down view of my spinner. </p> <p>Currently, it only has a city name, but I would also like to add a small distance field to it. </p> <pre><code> MyCity&lt;MyCityDistance&gt; dataAdapter; dataAdapter = new MyCity(this, R.layout.mycityrow, list); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); </code></pre> <p>I have all the code for custom data adapter, exapanding my view and holder etc. </p> <p>However, the item which gets show doesn't display both the city and its distance from my current location. </p> <p>It only shows what is overridden in toString() method of MyCityDistance class. </p> <p>I even tried setting</p> <p><code>dataAdapter.setDropDownViewResource(R.layout.mycityrow);</code></p> <p>but, no success. It throws an error. </p> <pre><code>04-02 11:05:22.600: E/AndroidRuntime(367): java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView 04-02 11:05:22.600: E/AndroidRuntime(367): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:347) 04-02 11:05:22.600: E/AndroidRuntime(367): at android.widget.ArrayAdapter.getDropDownView(ArrayAdapter.java:376) 04-02 11:05:22.600: E/AndroidRuntime(367): at android.widget.Spinner$DropDownAdapter.getDropDownView(Spinner.java:332) </code></pre> <p>What is a good example of creating your own custom <code>setDropDownViewResource()</code>? </p> <p>Even if I comment out the <code>setDropDownViewResource()</code> line, I get the same error. </p> <p>Note: The only effect <code>mycityrow</code> current is that the first element of Spinner is show as per the layout of <code>mycityrow</code>. However, when I click open the drop down, that layout is lost. I want the same layout during drop down selection too.</p>
 

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