Question

Following is the example of tabs with intent data.

While debugging i found that always when first tab we add in tab host in our case following tab

tabHost.addTab(tabHost.newTabSpec("tab1")
                    .setIndicator("list")
                    .setContent(new Intent(this, List1.class)));

oncreate method of “List1” intent get called regardless it is our current tab or not even if if i define tab2 as a current tab how to fix this ?

public class Tabs3 extends TabActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        final TabHost tabHost = getTabHost();

        tabHost.addTab(tabHost.newTabSpec("tab1")
                .setIndicator("list")
                .setContent(new Intent(this, List1.class)));

        tabHost.addTab(tabHost.newTabSpec("tab2")
                .setIndicator("photo list")
                .setContent(new Intent(this, List8.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)));

        // This tab sets the intent flag so that it is recreated each time
        // the tab is clicked.
        tabHost.addTab(tabHost.newTabSpec("tab3")
                .setIndicator("destroy")
                .setContent(new Intent(this, Controls2.class)
                        .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)));
    }
}

Answer 1

setDefaultTab(1);

seems not to be working in TabActivity when separate Activities are used as Tab Content.

Use following instead of this method,

tabHost.setCurrentTab(1);

This will set “photo list” (i.e second tab) as the selected or default tab…