Android :: Start An Activity And Return Back To Original Activity

Jan 26, 2009

I have an application with contains multiple activities. The main activity will start the others ( use startActivity() ) depends on user event, when an activity close, it calls finish() and return back to main activity. It appears to behavior like that.

However, the "problem" I see is main activity's onCreate function is called every time. I think the the main activity should be placed in the activity stack and simply push to front when others exit, therefore only onResume, onStart are called. Is there some flag I need to set or I misunderstand the activity behaviro?

In child activity, besides calling finish() or startActivity for main activity, what is other way to move main activity to front?

Android :: Start an activity and return back to original activity


Android :: Return To Original Activity After Call Ends?

Feb 28, 2009

I'm looking for a way to resume my activity (which makes phone call) after call ends by user. Currently after user ends a call, it always returns to the phone's native call-log screen instead of the activity that originated the call. Is there any way to prevent or customize this?

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Android :: How Can Service Return A String Back To Activity?

Nov 11, 2010

I am new in Android. I encounter the following situation, I have a background running service, which will get a keep-updating string from a webpage, I need to show this keep-updating string in my UI through Activity, since this string is get from service, I am wondering, How can the service pass the string to Activity so that activity can render the string on UI.

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Android :: Return Back To The Parent Activity From Subactivity

Jun 14, 2010

My application supports twitter and needs to open browser for OAuth. When the user clicks the Share on Twitter button, the main activity will create another subactivity (TwitterActivity) to handle twitter authentication issues. Here is a flow graph showing how activities are invoked currently. Main is short for MainActivity and Twit for Twitter Activity. startActivity() OAuth intent OAuth callback finish()Main ---------------> Twit ------------> Browser --------------> Twit --------> Browser As you may notice, after the TwitterActivity calls finish() to stop, it will now return back to MainActivity, but Browser instead. How can I make it return back to MainActivity?

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Android :: How Do I Return To Calling Activity If User Presses Back?

Aug 4, 2010

My MAIN activity is spawning a child activity that contains a ListView. While this ListView is being populated (through an AsyncTask), an indeterminate progress bar is shown.However, assuming that I am an impatient user and I press the BACK button, the progress bar is cancelled but I am left with a blank screen. I have to press BACK one more time to go back to the MAIN activity.I would like the app to go back directly to the MAIN activity by pressing BACK only once. Can somebody point me in the right direction? I am thinking I should call finish() somewhere but I don't know where to put it.

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Android :: How To Call Activity Wait For Sub-activity To Return & Proceed?

Apr 15, 2010

Experts: My MainActivity launches a SubActivity by calling: startActivityForResult(intent, REQ_CODE); The SubActivity shows a dialog that has two buttons: Yes, No For the dialog, I've the following code: public void onClick(DialogInterface dialog, int whichButton) {/* User clicked OK */setResult(DialogInterface. BUTTON_POSITIVE) ;finish();

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Android :: How To End Child Activity And Return To Parent Activity?

Jul 25, 2010

I have a main screen with buttons to launch other subactivities. I have to press back button each time to go back to the main screen of my application. How do I finish a child activity and automatically return from the caller?

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Android :: Start Browser Then Go Back To My Activity

Jan 29, 2009

Our application has a fair amount of java script. As far as we known, WebView widget doesn't handle AJAX, therefore we want to bring up the brower to load the url. The problem is, after user done with browser, how can it goes back to where it left in our application? ( when user quit the browser, our application will show up the activity before went to browser)

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Android :: Start Activity When Main Activity Is Running In Background

Jan 10, 2010

I created an application which enables the user to set whether he wants to receive notification while the application runs in background mode. If the notifications are enabled an activity should be started (the dialog should appear on the screen).

I tried to enabled it the following way:

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

This is the method from main activity. When onPause() is executed isRunningInBackground is set true.
When I tried to debug it when the main application was running in the background the line

startActivity(intent) had no effect (the activity didn't appear).

Does anyone know how to midify the logic in order to start an activity from the main activity when the main activity is running in the background (after onPause() is called)?

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Android :: Start An Activity In Different Apk Using StartActivity - Using The Activity Name Or Similar

Apr 20, 2010

I have tried to write an Android application with an activity that should be launched from a different application. It is not a content provider, just an app with a gui that should not be listed among the installed applications. I have tried the code examples here and it seems to be quite easy to launch existing providers and so on, but I fail to figure out how to just write a "hidden" app and launch it from a different one.

The basic use case is:

App A is a normal apk launchable from the application list.

App B is a different apk with known package and activity names, but is is not visible or launchable from the application list.

App A launches app B using the package and class names (or perhaps a URI constructed from these?).

I fail in the third step. Is it possible to do this?

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Android :: Activity Check Service To Start Another Activity

Sep 10, 2010

I need to made an activity (without layout) that on start check if a service is running. if it is true it starts Activity2, if it false it starts Activity1.

I tried with this code:

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

Enter code here

But when I check, in the onCreate method, if serviceConnect!=null I receive sometime a NullPointerExcption.

I tried also to insert the operation in the method onCreate in an Async Task:

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

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Android :: Start Activity And Clear Activity History

Apr 22, 2010

I have a huge maze of activities in my application. What I need to do, is that when the user logs in into the system, the activity history should be cleared. I cant just use finish() when I start a new activity, because I want the activities to have a history until the user logs in. I have experimentet with the different flags when starting an activity, but I have had no success.

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Android :: Start A New Activity From Anther Activity

Nov 19, 2010

I want to start a new activity from ab activity that (extends from Linearlayout) .. but this code is not right

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

public class SearchResultForm extends LinearLayout{ ...

And i get this error ..

No enclosing instance of the type SearchResultForm is accessible in scope.

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Android :: Start An Activity From Non Activity Class

Aug 19, 2009

An activity can be called from existing activity through *startActivity(intent); *

Is t possible to call an activity from non Activity class ? and how?

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Android :: How To Clear Activity From Second Activity Going Back To Home Screen?

Mar 3, 2010

example scenario is: from login screen - main screen - then when i clicked a hide button the app will go to home screen, and when im going to click the app again the main screen would be called.

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Android :: Start A Map Activity From Other Activity

Apr 8, 2010

I am developing an aplication. This one is designed to login a user, then select how find a place, using simple data or using a map. When I try to set in the event OnClick for select the "Map way" (using intent):

startActivity(new Intent(getApplicationContext(), MapviewController.class));

I have problems and didn't work.

My class and manifest are:

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

Do you know any way to call the MapActivity from other?

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Motorola Droid :: Cannot Get Original Sound Back At Start Up?

Sep 22, 2010

I am trying to get me Droid to play the Droid sound at startup again. I have tried to set my notification so i get the droid sound at start up, but no luck. It is a droid 1 rooted with easy root and I am also using super manager.

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Android :: How Does Service Return Result To Activity

Oct 1, 2010

i seem to have a classic task, yet i can't find any examples on how to do it.i want to download something. well i call a web service and get a response but its pretty much the same.in order to do this i have an activity that starts a service that spawns a thread that does the job.now i would like to use the data i got in the activity that started the service.(i assume that starting another activity to handle the job of displaying the result would be simple)my problem is how does the service notify an activity (the one that started it or another one) of something.

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Android :: Update Integrated Progress Bar In Original Activity

Jul 29, 2009

I've been trying to get my progress bar view to work in my file scanner application, and I'm thoroughly stumped by the proper combination of Activities, Services, Threads, and Handlers. Here's the structure: My Activity contains a Horizontal-styled ProgressBar. On menu item click, I spawn a Service which, onCreate(), which is where I want to be able to update the progress bar. what am I missing?.............

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Android :: Return To Root Activity After Task Cleared?

Jul 13, 2010

I have a app with 2 activities, A B A has a button that launches a new intent for B. When at B I press home, then launch app again, B is resumed with onResume(). But if after I press home, I use something like taskiller to clear tasks, then I launch app again, it still shows B, but onCreate() is called. What I want for the second situation is for the app to start A instead of B. How can that be done?

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Android :: How To Make Phone App Return To Last Open Activity?

Mar 14, 2010

Is it possible to configure an android app so that if a user has opened your app, launched numerous activities, then returns to the home screen and relaunches your app again, instead of going to the main activity they will instead be taken to the activity highest on the stack (the most recent activity in your app)?

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Android :: How To Return From Preference Screen To Main Activity?

Oct 14, 2010

I have one main activity and one preference Activity. On my first activity I call menu and go on preference Activity by calling startActivityForResult. Code...

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Android :: Low Memory Cause Activity.getIntent() To Return Null?

Sep 10, 2009

As the title says? Or what situations can cause this method to return null? I would of thought it retained this object always.

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Android : Return To Call Activity - Once Button Is Pushed?

Jul 19, 2010

Newbie Question from an iPhone developer.

I have called the startActivity(intent) and the new activity loads. How do I go 'back' to the calling activity once a button is pushed. 'Popping' the activity off the stack basically.

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

Mar 23, 2010

I have 3 classes in my example:
Class A, the main activity. Class A calls a startActivityForResult:

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);
finish();

onActivityResult is called in Class A, but the resultCode is RESULT_CANCELED instead of RESULT_OK and the returned intent is null. How do I return something from the Activity inside a TabHost?

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 :: How To Launch An Activity From A Widget And Return To Home Screen

Sep 14, 2010

I have a widget that when clicked opens an activity from same app as the widget. When the activity is closed/dismissed via a button, the user will see the full app window IF the app was previously open/in memory. Is there a way for the activity to finish and return to the home screen and not to an existing instance of the app?

Intent i = new Intent(this,RateIt.class);
i.putExtra("com.sporadicsoftware.NetQ.movie_id",aMovie.title_id);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET|Intent.FLAG_ACTIVITY_NO_HISTORY|Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context,
0, i, PendingIntent.FLAG_UPDATE_CURRENT);
updateViews.setOnClickPendingIntent(R.id.movie_one_title, pendingIntent);

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How To Return To Activity Once The Call Has Ended

Feb 27, 2012

I am currently calling the dialer from within my activity using the following code

"Intent dialIntent = new Intent(Intent.ACTION_DIAL);
startActivity(dialIntent);"

is it possible to return to my activity once the call has ended? When the dialer is shown, i want to block the home button, back button etc. so that user cant go anywhere.. is this possible??

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Android :: Access Original Activity's Views From Spawned Background Service?

Jul 21, 2009

I have an activity called A, and on the selection of menu item 0, it spawns service B, which starts a runnable C in a new thread. I have a TextView in activity A, which I want to access in thread C.

I've tried making the TextView a public static field, but that generates the following error:...........................

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Android :: Dialog Activity To Return Before Continuing Executing Of Main Thread

May 22, 2010

How would I force the current thread to wait until another has finished before continuing. In my program the user selects a MODE from an AlertDialog, I want to halt executing of the program before continuing as the mode holds important configuration for the gameplay.

new AlertDialog.Builder(this)
.setItems(R.array.game_modes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case 0:
setMode(TRAINING_MODE);
case 1:
setMode(QUIZ_MODE);
default:
setMode(TRAINING_MODE);
break; ............
//continue loading the rest of onCreate();
contineOnCreate(); } })
.create().show();

If this is impossible can anyone give a possible solution?

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Android :: Return To Previous Activity Without Calling Finish() / Save This Information?

Oct 26, 2009

I have an android application with a LOT of activities, think of something like a book where every page is a new activity. The user can make changes in each activity, for example highlight certain texts with different colored markers etc. and it's crucial that I'll remember this information as long as the application stays alive (and I don't want/need to remember any of this when it's not). As I understand the best mechanism for storing this kind of information is via onSaveInstanceState(Bundle outState) and onCreate(Bundle)/onRestoreInstanceState(Bundle) rather than lets say, the Preferences mechanism. My only problem is that the user can navigate backwards to previous pages (Activities) and the only way i know of achieving this is by calling finish() which of course kills the current activity without calling onSaveInstanceState(Bundle outState) and even if it did call it, the next time I would launch an activity representing that page it would be an entirely new instance. So my question is: Is there a way to go back to the previous activity without calling finish()? or, is there a better way to save this information? maybe through static variables?

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