Hello I am beginner to the android development. I want to create a tab structure.Where i want every tab to have icon. When i am specifying icon through xml it does reflect in tab.But icon is not occupying full space.
Please help me with this.
here is my tab xml
<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="#000000">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom= "true"
/>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above= "#android:id/tabs"
android:padding="5dp" />
</RelativeLayout>
</TabHost>
Following is my xml which i am using for tab to have icon.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/home" android:state_selected="true"/>
<item android:drawable="#drawable/homefade"/>
</selector>
and this is the java code which i am using to apply icon.
TabHost tabHost = (TabHost)findViewById(android.R.id.tabhost);
tabHost.addTab(tabHost.newTabSpec(HOME_TAB).setIndicator("", getResources().getDrawable(R.drawable.tab_home_config)).setContent(
new Intent(this, HomeActivity.class)));
I figured it out..
Need to set padding to zero that's it.
for (int i = 0; i < tabHost.getTabWidget().getChildCount(); i++)
{
tabHost.getTabWidget().getChildAt(i).setPadding(0,0,0,0);
}
I have a tabhost in an application that uses both a Tab Icon and Text for each tab. For the life of me, I cannot get the icon to be centered ABOVE the text instead of filling the entire tab. My searching has only resulted in others trying to get the icon to fill the entire tab. Every other example I have seen has the icon above the text.
Here is how I am setting up and adding the tabs:
tabs = (TabHost) this.findViewById(R.id.conference_tabhost);
tabs.setOnTabChangedListener(this);
tabs.setup();
TabSpec tspecMenu = tabs.newTabSpec(tab_tag_menu);
tspecMenu.setIndicator("Menu", getResources().getDrawable(R.drawable.ic_tab_menu));
tspecMenu.setContent(R.id.tab_menu_view);
tabs.addTab(tspecMenu);
Here is the beginning of my layout:
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/conference_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">
</TabWidget>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
I'm currently trying to create an application according the customer's specs, and these include a double tab set.
Meaning that the user needs to click in a tab at the bottom, and for example in the first tab, he will also see a set of tabs at the top where he can click (but when clicking in these, only the ones at the top will change, while the tabs at the bottom will remain the same).
How could I perform this with Android?
So far I could only implement the normal tabs creating a root item 'TabHost' just 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="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true" >
</FrameLayout>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
</RelativeLayout>
</TabHost>
Thanks a lot in advance!
I found this, thanks to the ActionBar (and SherlockActionBar for pre-Honeycomb devices):
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/app/ActionBarTabs.html
and also this:
http://www.youtube.com/watch?v=gMu8XhxUBl8
I am working on a Android project. In my project I am using tab layout. It works fine but all tabs background is black and when I am selecting any tab ,that tabs background changes to light brown.Is it possible to give custom color?
my xml file is
<?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:id="#+id/LinearLayout01"
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"
></TabWidget>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
></FrameLayout>
</LinearLayout>
</TabHost>
my java code is
Resources res = getResources();
TabHost tb=getTabHost();
Intent i;
TabHost.TabSpec spec;
spec = tb.newTabSpec("mee").setIndicator ("home").setContent(i);
tb.addTab(spec);
spec=tb.newTabSpec("contacts").setIndicator("search").setContent(i);
tb.addTab(spec);
Sure :)
You should define and use styles.
I suggest you to read here - http://developer.android.com/guide/topics/ui/themes.html
can anybody tell how to reduce the height of tab bar and display tab bar in bottom
Thanks
use the following line of code to change the height, this is the last line in my onCreate method
tabHost.getTabWidget().getChildAt(0).getLayoutParams().height =35;
Add the following method to your class that extends TabActivity
public void addNewTab(Context context, String title, int height){
TabHost tabHost = getTabHost(); // The activity TabHost
Intent intent = new Intent().setClass(context, HelloTabsActivity.class);
TabHost.TabSpec spec = tabHost.newTabSpec(title.toLowerCase()).setIndicator(title).setContent(intent);
tabHost.addTab(spec);
int totalTabs = tabHost.getTabWidget().getChildCount();
((RelativeLayout)tabHost.getTabWidget().getChildTabViewAt(totalTabs-1)).removeViewAt(0);
((TextView)((RelativeLayout)tabHost.getTabWidget().getChildTabViewAt(totalTabs-1)).getChildAt(0)).setHeight(30);
tabHost.getTabWidget().getChildAt(totalTabs-1).getLayoutParams().height = height;
}
then call it like this addNewTab(this, "tab title", 30);
Note that you have to change the height of each tab. For two tabs:
#Override
public void onCreate(Bundle savedInstanceState) {
... // other code
final int height = 45;
mTabHost.getTabWidget().getChildAt(0).getLayoutParams().height = height;
mTabHost.getTabWidget().getChildAt(1).getLayoutParams().height = height;
}
You could either
Build your own tab using a TableLayout at the bottom of the screen - which gives you quite a lot of flexibility
or
Modify use the existing TabHost/TabWidget - works in principle but I don't know how to reduce the tab bar height. Works like that:
Layout file main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TabHost android:id="#+id/tab_host"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<TabWidget android:layout_width="fill_parent"
android:layout_height="wrap_content" android:id="#android:id/tabs"
android:layout_gravity="bottom" />
<FrameLayout android:id="#android:id/tabcontent"
android:layout_width="fill_parent" android:layout_height="fill_parent" >
<LinearLayout android:id="#+id/first_tab"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView android:layout_width="fill_parent"
android:layout_height="fill_parent" android:text="First Tab" />
<!-- Replace TextView with your layout content for this tab -->
</LinearLayout>
<LinearLayout android:id="#+id/second_tab"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView android:layout_width="fill_parent"
android:layout_height="fill_parent" android:text="Second Tab" />
<!-- Replace TextView with your layout content for this tab -->
</LinearLayout>
<LinearLayout android:id="#+id/third_tab"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView android:layout_width="fill_parent"
android:layout_height="fill_parent" android:text="One More Tab" />
<!-- Replace TextView with your layout content for this tab -->
</LinearLayout>
<LinearLayout android:id="#+id/edit_item_text_tab"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</FrameLayout>
</TabHost>
</LinearLayout>
Source code of your activity, in this case StartActivity.java
import android.app.Activity;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
public class StartActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TabHost tab_host = (TabHost) findViewById(R.id.tab_host);
tab_host.setup();
TabSpec tabspec1 = tab_host.newTabSpec("TAB_1");
tabspec1.setIndicator("Tab 1");
tabspec1.setContent(R.id.first_tab);
tab_host.addTab(tabspec1);
TabSpec tabspec2 = tab_host.newTabSpec("TAB_2");
tabspec2.setIndicator("Tab 2");
tabspec2.setContent(R.id.second_tab);
tab_host.addTab(tabspec2);
TabSpec tabspec3 = tab_host.newTabSpec("TAB_3");
tabspec3.setIndicator("Tab 3");
tabspec3.setContent(R.id.third_tab);
tab_host.addTab(tabspec3);
tab_host.setCurrentTab(0);
}
}
Turns out to look like:
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/tabhost" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:padding="1dp">
<RelativeLayout android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TabWidget android:id="#android:id/tabs"
android:layout_width="fill_parent" android:layout_height="60dp"
android:layout_alignParentBottom="true" />
<FrameLayout android:id="#android:id/tabcontent"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:padding="1dp">
</FrameLayout>
</RelativeLayout>
Most likely you'll have to implement tabs by your own. As far as I know that's impossible with regular android tabs.
<TabWidget android:id="#android:id/tabs"
android:tabStripEnabled="false"
android:padding="0dip"
android:layout_width="wrap_content"
android:layout_height="fill_parent"/>
Working with tabs in the Eclipse "graphical layout" mode is not quite intuitive.
NOTE - Currently I am not able to attach pictures to this answer as my reputation is
below 10. Maybe in the future I will edit it and add them.
1) To change tab bar height:- Select "tabs (TabWidget)" in the Outline view. A selection/resize box should appear around the tab bar and its height can now be modified. I have made it thinner in picture1.
2) To move the tab bar to bottom:- Select "tabs (TabWidget)" in the Outline view and drop it into the LinearLayout above it (as marked in the picture 1). This will send the "tabs (TabWidget)" to the bottom of the list (see picture2). Tabs Bar might disappear at this stage. So adjust the weights of "tabcontent" & "tabs (TabWidget)" till it looks ok. I have used 10 & 1 respectively.
3) To bring tab2 to the top:- After design/layout of tab1 is complete, we want to work on the next tab. But Eclipse does not allow selecting it. To bring tab2 to the top select tab1 and drop it into tabcontent. This will send tab1 to the bottom of the list and tab2 to the top.
Later when work on tab2 is complete, tab3 can be brought up.
This pretty roundabout way of working in graphical layout mode but maybe better than typing xml code.
Cheers