Tab change listener android

Question

My HomeActivity extends AppCompatActivity that uses 2 tabs.

public class HomeActivity extends AppCompatActivity {

    private SectionsPagerAdapter mSection         


        

Answer 1

You should implement OnTabChangeListener to the TabActivity class rather than the contents of the Tab.

In your TabActivity implement OnTabChangeListener

then set the listener for the TabHost mTabHost.setOnTabChangedListener(this);

Ex.1

@Override
public void onTabChanged(String tabId) {
    Log.i("selected tab ", tabId);

}

Ex.2

  public class HelloTabWidget extends TabActivity implements OnTabChangeListener{

private TabHost mTabHost;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Resources res = getResources(); 
    TabHost tabHost = getTabHost();  
    TabHost.TabSpec spec;  
    Intent intent; 
    mTabHost = getTabHost();


    intent = new Intent().setClass(this, BarActivity.class);
    spec = tabHost.newTabSpec("Name").setIndicator("Name",res.getDrawable(R.drawable.ic_tab_name)).setContent(intent);
    tabHost.addTab(spec);

    intent = new Intent().setClass(this, CityActivity.class);
    spec = tabHost.newTabSpec("city").setIndicator("City",res.getDrawable(R.drawable.ic_tab_city)).setContent(intent); 
    tabHost.addTab(spec);

    intent = new Intent().setClass(this, MapsActivity.class);
    spec = tabHost.newTabSpec("Country").setIndicator("Country",res.getDrawable(R.drawable.ic_tab_map)).setContent(intent);
    tabHost.addTab(spec);        

    tabHost.setCurrentTab(2);
    mTabHost.setOnTabChangedListener(this);
}

public void onTabChanged(String tabId) {
    Toast.makeText(getApplicationContext(), "Selected Tab "+tabId, Toast.LENGTH_LONG).show();
    Log.i("selected tab index", "Current index - "+ mTabHost.getCurrentTab());      
}}