Android :: Replace Existing TabHost Content / Activities?

Nov 16, 2009

Since the TabHost API does not offer a way to change existing views or activities, what is the preferred means to replace an existing tab?

I only know of: clearing the tabs and adding them again. Is there an alternative? Or is this really not provided by design?

Android :: Replace existing TabHost content / activities?

Android :: Clear Completely Whole TabHost And Replace With Other Content?

May 9, 2010

I have a code for populating content for tabs dynamically. First time it works ok, but when I want to replace tabs (and their content) with new content - tabs are changed but tabs' contents are not, how can I clear completely whole TabHost and replace with other content? code...

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Android :: Using TabHost With Dynamically Built - Pre-existing Views

May 25, 2009

I have a remove assistant app, which allows customers to perform a subset of functions of a desktop application, untethered. Results are communicated back & forth via messages left at a license server. In order to have a single source for the logic of the assistant, yet run on multiple platforms (Swing, MIDP, & Android), I write a driver composed of Database, Network, & Display pieces.

The Android driver is nearly complete, but I run into a brick wall when it comes to Tabs. All views are instanced calling code, not XML defined. I already have the view before I try to add it.

I tried sub- classing TabHost:


As is shown in the code, it errors in setup. Looking further down in setup() I will also get this exception too: Your TabHost must have a FrameLayout whose id attribute is '

Is there a way to trick setup() into instancing me mTabWidget & mTabContent members?

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Android :: TabHost Activities Within Each Tab

Jun 23, 2010

I'm trying to create multiple tabs, each with a different Activity. The only downside is i'm using a custom layout file thus my class extends an Activity rather than a TabActivity. While trying to run, it fails and suggests calling TabHost.Setup(ActivityGroupManager agm)

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Android :: Creation Of Activities From Tabhost

May 14, 2010

I have a TabActivity. Within this activity (in the onCreate method) I create a TabHost and a TabSpec and do a tabSpectSearch.setContent(intenSearch); The Indent is created using intentSearch = new Intent().setClass(this, MyActivity.class);

As far as I already found out the class MyActivity is instantiated when I select the tab, to which it is connected. Is there a way from my TabActivity to force the creation of all activities (all tabs) at once?

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Android : Switch Activity Of Content Of Tab In Tabhost?

Dec 8, 2009

I have created a TabHost and in 1 of the tab, I have added the content using


Is it possible for me to switch the content's activity programatically after I called 'addTab of TabHost'?

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Android :: Trap In TabHost When AsyncTask Delays Set Content View At Activity Startup

Nov 3, 2009

I've got a tab host activity started from a home screen shortcut. When my application starts it downloads information from a server using an AsyncTask. In the onPostExecute method of the AsyncTask I call setContentView to display the TabHost.When I start the homescreen shortcut by tapping on the shortcut using my finger everything works as expected, I download the information from the server and display the TabHost with the information in the tabs. However starting the application by navigating to the shortcut with the mouse wheel and then clicking on the shortcut with the mouse wheel leads to a trap in the framework code as soon as my application starts. This looks like a simple fix since mCurrentView is null at the time that this method is called - can this issue be addressed? Does anyone know of any workarounds?

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Android :: How To Set New Content In Existing Tabs Upon Menu Button?

May 20, 2010

I recently started Android programming and was working on my first program which displays a historic text document, sectioned by tabs via TabHost.I have limited my program to one activity and merely used setContent in my TabSpec's to switch between different XML views.The document has both unedited and corrected versions of the text for which I have built text views to accommodate. I wanted to implement the standard menu to have buttons to "view corrected" and "view original" and switch the content of the tabs which have changes (without altering the tabs or their indicators).I've read on the TabHost API and there is no way to edit existing tab content with setContent() of TabSpec; and AFAIK TabWidget only affects the actual tabs, not the content that is displayed upon pressing them.I've thought about creating a new class which extended TabHost and super() all of the original methods, while including one more which updated the mTabSpec list.

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Android :: Possible To Write Custom Content Provider For Existing System Database?

Dec 9, 2009

Not sure of the absolute utility of this but seems as though it should be possible and useful. Can you extend ContentProvider to provide URIs representing new queries (i.e., joins across multiple tables not specified by existing URIs) for an existing system database? The alternative seems to be that I need to write a series of cursor queries then join them -- seems like a lot of unnecessary code duplication.

I have been trying this for the contacts database as an exercise, but no love so far. The crux seems to be that I cannot open a database in another package during the setup phase. Am I just completely out in left field here? It's possible as I am new to both Java and Android.

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Android :: Use Multiple Activities Or Multiple Content Views

Feb 18, 2010

I'm working on an application using xml layouts.

I wish to know which is better:
1. Use few activities and change its contentview
2. Use an activity for each 'view' needed

If both works, in which case which option would be better?

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Android :: Switching Activities / Passing Data Between Activities

Jun 30, 2010

how to call BarCodeScanner, and return the value to a now, i have a toast that says "successful scan" and then i want to pass the result to a new activity. when i comment out my intent, everything works (minus the passing of data/switching of screen, obviously) but when i run my project as is, it FC's no errors reported by eclipse in code or xml. any insights?

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Android :: Switching Content Providers For Same Content URI

Aug 12, 2009

This may seem like a stupid question but I need to be sure. I was wondering if it was possible to pro-grammatically change the Content Provider used when making a query given a Content URI. The reason being I need to know if it's possible to force the Calendar/Contacts applications to read from a different database via a different Content Provider temporarily while my application is running, so that I can reuse those applications to display my own data. Since the Content URI s are hard coded in each of these applications the only way it might be possible is if we could somehow temporarily change the Content Provider used for a given URI. I know this probably isn't possible, I just need to show it isn't. Could someone confirm this can't be done?

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Android :: TabHost And Scrollbars

Mar 27, 2009

My app uses a TabHost containing one tab with a ListView and another tab with a simple form. When the keyboard is slid out in order to write into the form fields, I don't get automagic scroll bars added to the LinearLayout around my form elements.

The resource xml follows.


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Android :: Remove Tab From TabHost?

Jul 21, 2010

In a TabHost widget, I can create a new tab with its content (Intent) using TabHost.addTab(TabHost.TabSpec tabSpec).

We can remove all tabs we created by calling clearAllTabs(), but I can't figure out how to remove the tab or just replace the content (Intent) inside the tab with new Intent.

so what I need something like removeTab(int index)

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Android :: How To Change My TabHost

Jun 13, 2010

I have a tabhost...

in this tabhost is a Intent,and in the activity must change to other activity,
question is I hope the other activity at same tabhost switch?
Can do this?

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Android : Way To Set Size Of Tab In TabHost?

May 28, 2009

Because of i add image on the tab,the tab looks small,and the string of the tab is on the image now. So,i want to make the tab looks larger,and the string of the tab could under the image. what should i do?

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Android : Put Mapview In Tabhost?

Jul 24, 2010

I recently want to put mapview in tabhost but now is the question i can't figure out how to do this right!

here's my source code...

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Android :: TabHost Slow On Orientation Changes

Nov 24, 2009

I currently have a TabHost with 3 tabs.The content of each tab is an activity. The first and second tab make HTTP connections.The first tab still uses the UI thread (which i'm changing) so it would explain the slow orientation change since it's creating a fresh activity and making all those connections again. What I don't understand is why if I am on say Tab 3 which makes no connections at all does changing the orientation take such a long time (up to 5 seconds).In playing around with the TabWidget I noticed something that may be related.

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Android :: Navigation Between Tabs In TabHost

Jul 6, 2010

Is there a possibility to navigate between Activities tabs in TabHost using back button? When I press it, I go out of the main Activity to the previous one.

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Android :: How To Clear Old Tabs And Add New Tab On Tabhost?

Aug 9, 2010

I have to create tab bar in my application in which i have to navigate between activities under single tag. So that i tried many ways one of which is to clear all tabs from tabhost and create new tabs and add on tabhost but it gives me unexpectedly close error.

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Android :: How To Embed Listview In Tabhost?

Jul 29, 2009

I'm trying to figure out how to emebed a listview in a tabhost Whenever I call it dies a rather unglamorouis death.I suspect I'm missing something rather obvious as I'm just getting started with this, but I couldn't find other examples of people having listviews inside tabcontrols besides the one which suggested as above. Any suggestions?

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Android :: Icon Packs For Tabhost

Oct 19, 2010

Anyone knows of any icon packs for android tabhost? Let's say I'm not good at drawing..

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Android :: How To Integrate 3rd Party App To Tabhost?

Aug 9, 2010

I using android 2.2 and I want to integrate a third party application into the tabulator. Is that possible and how can I do that? The third party app that I use called chartdroid. This is an intent based app and if I post the intent through my host I get an securityexception. ERROR/AndroidRuntime(4442): Caused by: java.lang.SecurityException: Requesting code from com.googlecode.chartdroid (with uid 10033) to be run in process com.chartDroid (with uid 10032)

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Android :: Tabhost Disappearing Randomly

Jul 16, 2009

I have an application that has two tabs: -First tab contains contacts -Second tab contains chats

Some times when I select the second tab it dissapears and a black background is shown. This issue does't happen when the first tab is shown You can find a picture of the issue here:

This issue happens randomly and i can't reproduce it consistenly.

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Android : How To Get Rid Of Horizontal Scroll Bar In Tabhost?

Jul 14, 2010

I want to get rid of horizontal scroll bar in TabHost. It's there even if TabWidget is on top.

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Android : TabHost And StartActivity For Result?

Sep 2, 2009

I meet an issue: my activity cannot return result.

I created an activity which has one TabHost. I added three tabs using mTabHost.addTab. Every tab will launch an activity(activity A, activity B, activity C). In activity A, it will call startActivityForResult to start activity A1. The issue is activity A cannot get any result after A1 finish.

What is the reason? How should I do if I want to get return value?

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Android : Restart An Activity Within A Tabhost?

Jan 13, 2010

I've searched and I know it seems some people frown upon using activities within tabs, but moving past would I restart a tabbed activity while still keeping the tabs visible? I have an activity in a tab, I use the menu to create a new activity to update the tab's activity displayed info, when I return from the menu activity I want the new information to be displayed in the tab's activity. I am using startActivityForResult() from the menu choice, but when I return and try to restart the wipes out the tabs above(I guess as expected, but I want to re-launch the refreshed activity within the tab).

Creating the tabs:

TabHost host = getTabHost();
Intent home_intent = new Intent(constants.HOME_ACTION,
null, this, homeTab.class);
Intent inbox_intent = new Intent(constants.INBOX_ACTION,
null, this, inboxTab.class);
Intent stats_intent = new Intent(constants.STATS_ACTION, null,
this, infoTab.class);


Return from the menu activity in the tab's activity(updating database info): code...

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Android : Use Tabhost By Extending MapActivity

Sep 19, 2010

I get a result as,
i want to get two tab,could you help me? Code...

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Android : Content Provider - No Link Between Content Provider And Its CONTENT_URI Declared In Another Class

Mar 1, 2010

I am having a hard time understanding content providers. In the notepad example and others, the content provider never even declares its CONTENT_URI anywhere inside itself, yet the docs say to publicly declare this. It's declared in a different class. So when an activity queries a content provider with a CONTENT_URI, how does Android know which one I want. I see no link between a content provider and its CONTENT_URI declared in another class.

I also don't how to think about intents and content providers. I know that you don't call an intent on a content provider. But an activity queries a content provider without an intent, and an activity has a mimetype attribute in the manifest that would seem to tie it to a content provider.

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Android :: TabHost Accessing Specific Tabs

Oct 27, 2010

I have a tabHost with tree tabs. How can I access a specific tab from the tabHost activity when this tab is not active at the moment.And a second question to this topic.How can I access the activity of a tab from another tab?I need this, because I have to update the second tab when something changes on the first tab.

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