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POChanging a textview text dynamically when it is displayed in a tabhost
 

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  1. POChanging a textview text dynamically when it is displayed in a tabhost
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    <p>Firstly, Im new to android but have years of various other programming experience on unix, windows,but not with Java or android. Im wanting to display a tab with 3 tabs, each having a different layout file (which works). Im working on displaying a "blank" template and then the data is retrieved from an XML file once the user points a setting to one (i.e. via shared preferences). </p> <p>My problem is that the function populateXMLCharacter is never called (using breakpoints). The tab activity always displays "", which is a strig the string.xml. Actually putting a breakpoint in the oncreate function never gets called either. Ive tried using a call to populateXMLCharacter in onResume, but it too never gets called.</p> <p>Im thinking its because of the call to the tab:</p> <pre><code> Resources res = getResources(); // Resource object to get Drawables TabHost tabHost = getTabHost(); // The activity TabHost TabHost.TabSpec spec; // Resusable TabSpec for each tab // Do this and the same for all tabs spec = tabHost.newTabSpec("Description").setIndicator("Description", res.getDrawable(R.drawable.android)).setContent(R.layout.tab_harp_description); tabHost.addTab(spec); </code></pre> <p>Should I be using an intent? I thought the layout was created in a seperate function (in this case harpCSDescription.java and then this allows that activity to be inserted into the tabhost?</p> <p>other functions: public class harpcsDescription extends Activity { </p> <pre><code>public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView (R.layout.tab_harp_description); } //@Override protected void onResume() { // NOW WE ADD DATA TO THE TEMPLATE populateXMLCharacter(); } public void populateXMLCharacter() { </code></pre> <p>Ive tried using intents in the following manner but it simply crashes before any breakpoints are reached.</p> <p><a href="http://developer.android.com/resources/tutorials/views/hello-tabwidget.html" rel="nofollow">http://developer.android.com/resources/tutorials/views/hello-tabwidget.html</a></p> <p>Can some one please guide me to what I should be doing to create an activity with data that is retrieved AFTER the tab is created?</p>
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