My tabhost is not working

Question

I am working with the tabhost with 2 tabs i am unable nothing in the tab activity,

This is the main class where i implemented the tab host

tabHost = getTabHost();
//*   TabHost Implementations*//*
tabHost = (TabHost) findViewById(android.R.id.tabhost);
tabHost.setup();

TabSpec tab1 = tabHost.newTabSpec("FirstTab");
TabSpec tab2 = tabHost.newTabSpec("SecondTab");

// Set the Tab name and Activity
// that will be opened when particular Tab will be selected
tab1.setIndicator("Friends");
Intent tab1intent = new Intent().setClass(this, Friends_list_add.class);
tab1intent.putExtra("userid", userid);
System.out.println("tabHost------" + tab1intent);
tab1.setContent(tab1intent);

tab2.setIndicator("Invite Friends");
Intent tab2intent = new Intent().setClass(this, Friends_Invite_list.class);
tab2intent.putExtra("response", response);
System.out.println("tab2intent------" + tab2intent);
tab2.setContent(tab2intent);


//** Add the tabs  to the TabHost to display. *//*
tabHost.addTab(tab1);
tabHost.addTab(tab2);

tab = 1;
//set Windows tab as default (zero based)
tabHost.setCurrentTab(tab);

Through intent I am switching to another activity in that activity in onCreate

I have to view a layout as follows textview but it's not displaying anything

no_friends = (TextView) findViewById (R.id.nodata_found_friends);    

I have referred all the website but still didn't get anything, Please help me, Thanks in advance

Answer 1

Try this way to make tabhost i m sure its work.

public class MainActivity extends TabActivity implements OnTabChangeListener,
		OnClickListener {

	private ImageView iv_Home;
	private ImageView iv_Chat;
	private ImageView iv_Post;
	private ImageView iv_Alert;
	private ImageView iv_More;
	private TabHost tabHost;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main_activity);
		Casting();
	}

	private void Casting() {
		// TODO Auto-generated method stub
		iv_Home = (ImageView) findViewById(R.id.iv_Home);
		iv_Chat = (ImageView) findViewById(R.id.iv_Chat);
		iv_Post = (ImageView) findViewById(R.id.iv_Post);
		iv_Alert = (ImageView) findViewById(R.id.iv_Alert);
		iv_More = (ImageView) findViewById(R.id.iv_More);

		iv_Home.setOnClickListener(this);
		iv_Chat.setOnClickListener(this);
		iv_Post.setOnClickListener(this);
		iv_Alert.setOnClickListener(this);
		iv_More.setOnClickListener(this);

		tabHost = getTabHost();
		tabHost.setup();

		TabHost.TabSpec tabSpec;

		tabSpec = tabHost.newTabSpec("Tab1").setIndicator("")
				.setContent(new Intent(this, CategoryActivity.class));
		tabHost.addTab(tabSpec);

		tabSpec = tabHost.newTabSpec("Tab2").setIndicator("")
				.setContent(new Intent().setClass(this, ChatActivity.class));
		tabHost.addTab(tabSpec);

		tabSpec = tabHost
				.newTabSpec("Tab3")
				.setIndicator("")
				.setContent(
						new Intent().setClass(this, LoginActivity.class));
		tabHost.addTab(tabSpec);

		tabSpec = tabHost.newTabSpec("Tab4").setIndicator("")
				.setContent(new Intent().setClass(this, AlertActivity.class));
		tabHost.addTab(tabSpec);

		tabSpec = tabHost.newTabSpec("Tab5").setIndicator("")
				.setContent(new Intent().setClass(this, MoreActivity.class));
		tabHost.addTab(tabSpec);

		tabHost.setOnTabChangedListener(this);
		tabHost.setCurrentTab(0);
		setSelectedTabColor();

	}

	@SuppressWarnings("unused")
	@Override
	public void onTabChanged(String tabId) {
		// TODO Auto-generated method stub
		int pos = this.tabHost.getCurrentTab();
		// this.mViewPager.setCurrentItem(pos);
		setSelectedTabColor();
	}

	// private static void AddTab(MainActivity activity, TabHost tabHost,
	// TabHost.TabSpec tabSpec) {
	// tabSpec.setContent(new CategoryTabFactory(activity));
	// tabHost.addTab(tabSpec);
	// }

	private void setSelectedTabColor() {
		// TODO Auto-generated method stub
		switch (tabHost.getCurrentTab()) {
		case 0:
			Global.setActionbar(this, getActionBar(),
					getString(R.string.app_name));
			iv_Home.setImageResource(R.drawable.btn_home_hover);
			iv_Chat.setImageResource(R.drawable.btn_chat);
			iv_Post.setImageResource(R.drawable.btn_post);
			iv_Alert.setImageResource(R.drawable.btn_alert);
			iv_More.setImageResource(R.drawable.btn_more);
			break;
		case 1:
			Global.setActionbar(this, getActionBar(), getString(R.string.chat));
			iv_Home.setImageResource(R.drawable.btn_home);
			iv_Chat.setImageResource(R.drawable.btn_chat_hover);
			iv_Post.setImageResource(R.drawable.btn_post);
			iv_Alert.setImageResource(R.drawable.btn_alert);
			iv_More.setImageResource(R.drawable.btn_more);
			break;
		case 2:
			Global.setActionbar(this, getActionBar(),
					getString(R.string.post_product));
			iv_Home.setImageResource(R.drawable.btn_home);
			iv_Chat.setImageResource(R.drawable.btn_chat);
			iv_Post.setImageResource(R.drawable.btn_post_hover);
			iv_Alert.setImageResource(R.drawable.btn_alert);
			iv_More.setImageResource(R.drawable.btn_more);
			break;
		case 3:
			Global.setActionbar(this, getActionBar(), getString(R.string.alert));
			iv_Home.setImageResource(R.drawable.btn_home);
			iv_Chat.setImageResource(R.drawable.btn_chat);
			iv_Post.setImageResource(R.drawable.btn_post);
			iv_Alert.setImageResource(R.drawable.btn_alert_hover);
			iv_More.setImageResource(R.drawable.btn_more);
			break;
		case 4:
			Global.setActionbar(this, getActionBar(), getString(R.string.more));
			iv_Home.setImageResource(R.drawable.btn_home);
			iv_Chat.setImageResource(R.drawable.btn_chat);
			iv_Post.setImageResource(R.drawable.btn_post);
			iv_Alert.setImageResource(R.drawable.btn_alert);
			iv_More.setImageResource(R.drawable.btn_more_hover);
			break;
		default:
			break;
		}
	}

	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		if (v == iv_Home) {
			tabHost.setCurrentTab(0);
		} else if (v == iv_Chat) {
			tabHost.setCurrentTab(1);
		} else if (v == iv_Post) {
			tabHost.setCurrentTab(2);
		} else if (v == iv_Alert) {
			tabHost.setCurrentTab(3);
		} else if (v == iv_More) {
			tabHost.setCurrentTab(4);
		}
		setSelectedTabColor();
	}
}