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 that...how 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 activity...it 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);

host.addTab(host.newTabSpec(constants.HOME_TAG)
.setIndicator(getText(R.string.home_label),
getResources().getDrawable(R.drawable.icon))
.setContent(home_intent));
host.addTab(host.newTabSpec(constants.INBOX_TAG)
.setIndicator(getText(R.string.inbox_label),
getResources().getDrawable(R.drawable.icon))
.setContent(inbox_intent));
host.addTab(host.newTabSpec(constants.STATS_TAG)
.setIndicator(getText(R.string.stats_label),
getResources().getDrawable(R.drawable.icon)).setContent(
stats_intent));

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

Android : Restart an activity within a tabhost?


Android :: Force Activity In Landscape Mode Without Activity Restart

Aug 21, 2009

I have a problem to start/create Activity in landscape mode. My Activity need to start in landscape mode and be used in landscape mode by users. So far, I used setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) to force screen orientation of my Activity to landscape mode in onCreate() method.

In addition to this screen mode requirement, my application need to start another background thread in onResume() method, and this thread takes some seconds in order to finish an initialization process, and it is not desirable to to stop/restart this thread's service during the initialization process.

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Nov 17, 2010

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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

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Android :: Showing Indeterminate Progress Bar In TabHost Activity

Jul 16, 2009

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CODE:.............

The problem is that I am using a TabHost and I need to be able to do this from one of the "child" activities. Is there any way I can go about doing this?

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Android : Return A Result (startActivityForResult) From A TabHost Activity?

Mar 23, 2010

I have 3 classes in my example:
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Intent intent = new Intent(this, ClassB.class);
startActivityForResult(intent, "STRING");

Class B, this class is a TabActivity:

Intent intent = new Intent(this, ClassC.class);
tabHost.addTab...

Class C, this class is a regular Activity:

Intent intent = this.getIntent();
intent.putExtra("SOMETHING", "EXTRAS");
this.setResult(RESULT_OK, intent);
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I realize that the problem is that my Class C is actually running inside of Class B, and Class B is what is returning the RESULT_CANCELED back to Class A. I just don't know a work around yet.

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Android :: OnSaveInstanceState Function In Main Activity Of TabHost-based Application

Aug 30, 2009

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Nov 3, 2009

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Android :: Best Way To Restart Activity?

Aug 17, 2010

I'm building a game which works as some type of a quiz. I ask user the question and when he submits the answer(click or touch correct answer) I need to refresh the page with some other question.

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I want next scenario:
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Sep 9, 2009

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Android :: Activity Restart Crash After OS Kills It

Mar 8, 2010

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Mar 18, 2010

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Nov 21, 2009

I'd like to use FLAG_ACTIVITY_CLEAR_TOP to launch an activity in my app. It has one feature I don't want though - it restarts the target intent, instead of just resuming it. Example history stack, with activity D making the call to B with that flag:

A B C D

new stack

A B

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Nov 5, 2010

I'm developing an application that uses a library project to store much of the functionality and content. When I edit the code and/or content in the library and then run the app, it doesn't properly restart the activity with the changes, giving the warning:

Warning: Activity not started, its current task has been brought to the front

I understand that this warning comes from the SK not thinking that there were any changes to the app, but there were (to the library, not to the app itself).

The only way that I've found to force the app to recompile with the library changes is to do Project->Clean. While this is effective, it's a bit annoying to have to do this every time a make a change. Does anyone know of a way to force the SDK to recognize that a library change should result in reloading the application?

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CODE:...................

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Jan 13, 2010

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Sep 22, 2010

How to bring stop activity to foreground (restart) by itself?i use Broadreceiver and intent to restart my activity.but always start two activity (include original activity)how to restart my original activity?

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Android :: Broadcast Receiver / Service Will Only Restart Activity Once

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Oct 6, 2010

In my Project I want to play audio files in mediaplayer and displays progressbar. If I exit the application then also player have to play audio file. If I restart The Activity
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Jul 28, 2009

I have fixed the activity screen orientation to portrait on AndroidManifest.xml file. When I open or close the keyboard the activity gets restarted. How to avoid this restart?

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Android :: Android Activity With Splash Screen Restart And The Back Button

Nov 8, 2010

I have an Android app with a splash screen.

This splash screen pre-loads data and when finished starts the application's main activity and finishes (through a finish() call).

This works quite well as long as the application is not totally killed. So, I can usually switch back and forth between different tasks as usual: when I leave the app from a sub activity and return soon after I will be presented with this sub activity.

Now, when I leave this sub activity and do some other stuff for a while inevitably this application process is killed by the OS.

No problem so far. Now I would expect Android, being unaware of my preloading (if the data was not preloaded it would just take longer or not display some fonts, but Android cannot be aware of the fact that I am doing preloading somewhere), to restore the sub activity from a Bundle. However the splash screen activity is started.

So, I say, that's fine then... the splash screen activity is after all the launcher / main activity. Now, the actual mystery I have is as follows.

When I press the back-button from this newly loaded splash screen I will be presented with the sub activity I left the application from before it got killed. I really don't understand this. Apparently Android DID save the sub activity's state (and its history stack) to be reloaded but instead of reloading it chose to start the splash screen instead, with this sub activity (I left the task earlier before it got killed) one step back on the activity stack.

Why does this happen?

When the process is not killed I can switch back to where I left off. When it's killed I cannot (yet still have the whole earlier history of that app restored). I know that Android has to load state etc. in the latter case, but that shouldn't be a problem and is performed automatically by default (according to the docs).

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Android :: Android Back Button Does Not Restart Activity

May 8, 2010

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Apr 20, 2010

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Mar 27, 2009

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The resource xml follows.

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Jun 23, 2010

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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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Jun 13, 2010

I have a tabhost...

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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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