Change Tab Icon

lnediger · by **lnediger** » Sat Aug 02, 2008 12:32 am

I have an activity which has a set of tabs on it. The tabs all have icons set when the tabs are created. How would I go about changing the icons on pre-existing tabs?

michael_g_hu · by **michael_g_hu** » Thu Aug 07, 2008 9:27 am

when you add tab ,just use
addTab(CharSequence label, int resId, int imgId)
the last one is image for tab

artjin · by **artjin** » Wed Oct 22, 2008 7:01 pm

Hi all!
Great forum with plenty of very useful info.
I am using Tabs that are constructed by Intent, and I tried to change tab icon and text dynamically, but could not find any code examples on how to do that.
So I am using some really clumsy way, and it would be nice to know if there is a better way of doing the same thing.

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

 
public class MyTabs extends TabActivity {
 
        public static final String TAG_TAB1 = "TAB1";
 
        public static final String TAG_TAB2 = "TAB2";
 
        public static final int ID_TAB1 = 0;
 
        public static final int ID_TAB2 = 1;
 
        private TabHost tabHost;
 
    @Override
 
    protected void onCreate(Bundle savedInstanceState) {
 
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
 
        super.onCreate(savedInstanceState);
 
        tabHost = getTabHost();
 
        tabHost.addTab(tabHost.newTabSpec(TAG_TAB1)
 
                .setIndicator(TAG_TAB1, getResources().getDrawable(R.drawable.graphictabred))
 
                .setContent(new Intent(this, MyActivity_1.class))
 
        );
 
        setText(ID_TAB1, null, new Float(10.0));
 
        tabHost.addTab(tabHost.newTabSpec(TAG_TAB2)
 
                .setIndicator(TAG_TAB2, getResources().getDrawable(R.drawable.graphictabwhite))
 
                .setContent(new Intent(this, MyActivity_2.class))
 
        );
 
        setText(ID_TAB2, null, new Float(10.0));
 
        tabHost.setOnTabChangedListener(new OnTabChangeListener(){
 
                        public void onTabChanged(String tabId) {
 
                                if(tabId.equals(TAG_TAB2)){
 
                                        setIcon(tabHost.getCurrentTab(), R.drawable.graphictabred);
 
                                        setText(tabHost.getCurrentTab(), tabId + " is selected", new Float(10.0));
 
                                        setIcon(ID_TAB1, R.drawable.graphictabwhite);
 
                                        setText(ID_TAB1, TAG_TAB1, new Float(10.0));
 
                                }
 
                                else if(tabId.equals(TAG_TAB1)){
 
                                        setIcon(tabHost.getCurrentTab(), R.drawable.graphictabred);
 
                                        setText(tabHost.getCurrentTab(), tabId + " is selected", new Float(10.0));
 
                                        setIcon(ID_TAB2, R.drawable.graphictabwhite);
 
                                        setText(ID_TAB2, TAG_TAB2, new Float(10.0));
 
                                }
 
                        }
 
        });
 
    }
 
    private void setIcon(int whichTab, int resourceId){
 
                ArrayList <View> views = tabHost.getTabWidget().getChildAt(whichTab).getTouchables();
 
                RelativeLayout relLayout = (RelativeLayout)views.get(0);
 
                ImageView iv = (ImageView)relLayout.getChildAt(0);
 
                iv.setImageDrawable(getResources().getDrawable(resourceId));
 
    }
 
    private void setText(int whichTab, String text, Float size){
 
                ArrayList<View> views = tabHost.getTabWidget().getChildAt(whichTab).getTouchables();
 
                RelativeLayout relLayout = (RelativeLayout)views.get(0);
 
                TextView tv = (TextView)relLayout.getChildAt(1);
 
                if(text != null){
 
                        tv.setText(text);
 
                }
 
                tv.setTextSize(size);
 
    }
 
}
 
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Thanks

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