Modify tab indicator dynamically in Android

Question

My application needs to update tab indicator dynamically, I'm trying to do this by invoke TabSpec.setIndicator(), but it doesn't work. Here is my code:

In onCreate method of TabActivity:

tabHost = getTabHost(); 
TabSpec tabSpec = tabHost.newTabSpec("abc");
tabSpec.setIndicator("helloabc");
tabSpec.setContent(new MyViewFactory());
tabHost.addTab(tabSpec);

Now I need to change tab indicator to another string, for example, "xyz"

TabSpec tabSpec = MyTabActivity.getTabSpec();
tabSpec.setIndicator("xyz");

But it doesn't work. So I'd like to know how to change tab indicator after it is added to the tabhost? Many thanks.

Solution

Thanks to @CommonsWare, I make it by using TabWidget.getChildAt, here is my code for your convenience:

TextView title = (TextView) tabHost.getTabWidget().getChildAt(tabId).findViewById(android.R.id.title)
title.setText("xyz");

can i change the image indicator this way? – keen Feb 26 '14 at 06:52 — keen, Feb 26 '14 at 06:52

score 13 · Accepted Answer · answered May 29 '10 at 22:06

13

I apologize for my earlier incorrect answer, now deleted.

Try using getChildViewAt() on TabWidget.

answered May 29 '10 at 22:06

CommonsWare

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How can i change the image indicator of tab bar? – keen Feb 26 '14 at 06:52

score 7 · Answer 2 · edited Dec 13 '11 at 11:22

7

i managaed with getChildTabViewAt(tabId) instead of childviewAt(id) for multiple tab.

edited Dec 13 '11 at 11:22

DaveShaw

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answered Dec 13 '11 at 11:09

chrish

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score 0 · Answer 3 · answered Aug 30 '13 at 05:21

0

Try this:

 TextView title = (TextView) TabHost.getTabWidget().getChildTabViewAt(tabId).findViewById(android.R.id.title);

answered Aug 30 '13 at 05:21

princepiero

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Modify tab indicator dynamically in Android

3 Answers3

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