Develop Reference

How can I make tabs scroll horizontally?

This code is not working. i don't know why though
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</HorizontalScrollView>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
</TabHost>

You can use ViewPagerIndicator instead.

put Tabbar in the bottom of the screen

I want to put the tabbar widget on the button of the screen but i failed. here is my code:
<?xml version="1.0" encoding="utf-8"?>
<TabHost
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<TabWidget
android:id="#android:id/tabs"
android:layout_alignParentBottom="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp" />
</RelativeLayout>
</TabHost>
I am using android 2.3.3

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="3dp">
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignBottom = "#android:id/tabcontent"
/>
</RelativeLayout>
</TabHost>

Scrollable tabs in android

I am trying to have scrollable tabs in android. I tried to apply a HorizontalScrollView to the TabWidget, but it didn't work.
Any ideas why it does not work?
Here is the main.xml:
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<HorizontalScrollView android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none">
<TabWidget android:id="#android:id/tabs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</HorizontalScrollView>
<FrameLayout android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
</TabHost>

Try this it is working for me:-
<HorizontalScrollView android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none">
<LinearLayout android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TabWidget android:id="#android:id/tabs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<FrameLayout android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
</HorizontalScrollView>

I had the same problem earlier. I was doing the same thing, but putting Tabwidget in HorizontalScrollView is not enough, it shrinks during runtime. So we have to define the height and width of widget during runtime through the loop. Like the below
for(int i=0;i<=numbeOfTabs;i++)
{
mTabHost.getTabWidget().getChildAt(i).getLayoutParams().width=100;
mTabHost.getTabWidget().getChildAt(i).getLayoutParams().height=100;
}

Tabs at bottom with mapview on top

Hey people out there..
Im working on making a application with tabview where in one of the tabs is mapview embedded to.
Buut i want the tabview to be at bottom and not on top, when i set the gravity or layout_marginBottom to true it disappers, and is no longer visible on the screen.
Here is the xml file for the tab view activity
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:id="#+id/emptylayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" />
</FrameLayout>
</LinearLayout>
</TabHost>
Any ideas how to get the tabs to bottom and still visible??

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/white">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp" />
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
</RelativeLayout>
</TabHost>
This works for me. Place the tabcontent FrameLayout above TabWidget. Please try it out and let me know.

I have done it like this...
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#android:id/tabs" />
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
</RelativeLayout>
</TabHost>

HorizonatalScrollView on TabWidged "steals" space

I have an TabActivity with custom TabWidgets at the bottom. I want to be able to add more than 5 Tabs. Unlike the MenuBar, which adds a "more" button dynamically, Tabs are just resized and look horribly. So my first attempt was to wrap my TabWidgets into a HorizontalScrollView. The problem is, that I have a ListView as TabContent and its last item seems to be hidden behind my TabWidgets.
This is the Layout for my TabView
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/main_linlay_parent"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TabHost
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="#+id/main_tablinear"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:layout_above="#android:id/tabs"/>
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none"
android:layout_alignParentBottom="true">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"/>
</HorizontalScrollView>
</RelativeLayout>
</TabHost>
</LinearLayout>
am I doing something wrong in my Layout? Are there better ways to apply more than 4 Tabs? While I can see 4 Tabs good with my Nexus-S, I'm thinking they are already ugly on a Wildfire. Any idea appreciated

Try this. It worked for me:
Code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android">
<TabHost android:layout_weight="1" android:id="#android:id/tabhost"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:orientation="vertical">
<HorizontalScrollView android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout android:layout_height="fill_parent"
android:orientation="horizontal" android:layout_width="fill_parent">
<TabWidget android:layout_height="wrap_content"
android:id="#android:id/tabs" android:isScrollContainer="true"
android:layout_width="fill_parent" android:scrollbars="horizontal"></TabWidget>
</LinearLayout>
</HorizontalScrollView>
<FrameLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="#android:id/tabcontent">
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="#+id/tab1"></LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="#+id/tab2"></LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="#+id/tab3"></LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="#+id/tab4"></LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="#+id/tab5"></LinearLayout>
</FrameLayout>
</LinearLayout>
</TabHost></LinearLayout>

I solved my problem myself! I think it can be helpful for other users to see the soltution:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/main_linlay_parent"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TabHost
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="#+id/main_tablinear"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:layout_above="#android:id/tabs"
android:layout_marginBottom="50dip"/>
<!-- note: margin bottom 50 dip above:
its exactly the size of my custom TabWidget -->
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none"
android:layout_alignParentBottom="true">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"/>
</HorizontalScrollView>
</RelativeLayout>
</TabHost>
</LinearLayout>