Android :: How To Come Back Main Activity From Child One?

Mar 30, 2010

I'm in a small problem.i have three activities (suppose A,B,C) after performing onclick event in activity A, i can go to activity B and then C..my question is that is there any way to comeback activity A from C..here is the code snippet public void on Create(Bundle Code...

Android :: How to come back main activity from child one?


Android :: What Is Recommend Way To Get Main Activity From Child One?

Mar 29, 2010

My android application has 1 main activity. And it launches some sub-activity (which I wrote) and that also launches some sub-activity (which I wrote). I do this. My question is how can each of my sub-activity and sub-sub-activity get back to the Parent activity? Code...

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Android :: Sending Data Back To Main Activity?

May 28, 2009

I have two activity Main activity and child activity when I press a button the child activity is lunched. Still now I have no problem. I want to send some data back to the main screen. I used The Bundle class but it is not working. It throw some run time exception.

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Android :: Main Activity Grayed-out / Disabled On Back Button - Cause This Problem?

Jun 25, 2010

I have a problem on going back (clicking the Back button) from sub-activity to main activity: from my main activity I launch a new one (with passing some extras). code...

In the started activity I am getting data from extras and showing, etc. So everything works very well until I click Back button to return back to main activity. Then main activity appears but directly after - grays-out. I can't do anything there anymore... This "grayed-out" style looks something like there should be a dialog displayed, but there is no dialog shown, just the whole activity is pushed down/disabled instead...

One another interesting thing I noticed - that activity is still alive in background, because if I click "Search" button the Quick Search Box appears on top of my activity and if I click Back button then (to cancel it) - it disappears and my activity then becomes fully functional again (gray-out effect simply disappears...)

Tried watching logcat, but it shows nothing useful, no exceptions thrown, just this text always comes up:

W/KeyCharacterMap( 564): No keyboard for id 0
W/KeyCharacterMap( 564): Using default keymap: /system/usr/keychars/qwerty.kcm.bin

What could cause this problem?

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Android :: Pressing Home Or Back Buttons From Main Activity / Causes App To Stop Unexpectedly

Nov 13, 2010

This is difficult for me to diagnose because the Log doesn't provide the offending code line that indicates what caused it.Running the app in the Emulator seems to work OK until I press Home or Back from the Main Activity. Using Back between the activities in the program seems to work OK, it only fails at the Main. I don't have the app finished yet so I haven't loaded it to a device yet.The Log says there was a null pointer exception so I would like to find why.The log points to the android routines (and I don't appear to have the source for those routines in the emulator-most but not all and these are refering to those I can't access). The log gives up at one point and says "11 more".It would be nice to see the remaining 11 in the hopes that one of them points to the line in my code that caused the offense.I'm looking for ideas on ways to find the error and hopefully cure it.

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Android :: Add Child Views To Main View

Oct 23, 2010

I am trying to figure out how to add a child view to a parent view so I can use the MotionEvent.ACTION_MOVE feature to move from one child view to the next. Is this possible?

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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 :: Open Dialogue Activity Without Opening Main Activity Behind It

Jul 19, 2010

Im writing a program that offers a quick reply dialog upon receipt of an SMS.

However, I am getting an unexpected result. When I receieve an SMS, the appropriate dialog activity comes up displaying the correct phone number and message, however there is a second activity behind it that is the 'default' activity in my program (it is what opens when i launch my application)

I do not want this second activity to come up. The quick reply activity should come up by itself over top of whatever the user was doing before.

The 'floating' activity:

CODE:.........

The call to the activity inside an onReceive()

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

The Manifest:

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

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Android :: Passing Arguments From Loading Activity To Main Activity

May 16, 2010

I'm writing an application that starts with a loading activity. In the loading activity the app requests html from web and parses the html, then it sends the parsing result to the main activity. The main activity has several tabs, and contents of these tabs are based on the result of parsing.For example, the result of parsing is a list of strings ["apple", "banana", "orange"], and I need to pass this list to main activity, so that the main activity can create three tabs named after three fruits.I would like to know if there is any way to pass a list of strings among activities, BTW, is it the common way of do this?

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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 :: Starting Second Activity From Main Activity On Button Click

Dec 4, 2009

Need an example of how to create/start a new activity from the main activity. I have a button click event on the main layout. Originally I just used setContentView(R.layout.secondactivity); which brings up the layout but I don't think that is correct since the secondactivity class is not instantiated at this point yet. I have looked for such an example and can not find one.

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Android :: App Widget Configure Activity Opens Main Activity

Jan 10, 2010

I hav an app that is like a relational database. There is a main app activity that users manage things with. There is also a widget that will display important info and add data to the database. When the widget is clicked, a configure class displays a way for the user to edit data. When the configure activity is done, the widget is updated and instead of going back to the home screen, the apps main activity is started. I can't find where the main activity is being called from. Wouldn't I have to create an intent and start Activity() to get this behavior? When done updating, I want the home screen and not my app.

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Android :: Main Activity To Browser Activity Error

Nov 7, 2010

I have a main activity, then i call a new activity intent from this. Lets call this SecondActivity. Then from my secont activity i call a browser intent. Then my browser intent call my second activity's onNewIntent method.Evereything work fine, but when i click on "back" button on my phone on my second activity, i will not going to my main activity, but the browsers activity, why?

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Android :: Pass Data To A Child Activity

Nov 2, 2010

I wounder if there is some possible to know from which parent Iam coming from in the child so I can do different stuff depending on who the parent is of the activity.This is how Iam going over to the child. But I don't know how to handle this in the child to check who is the parent. The above code is used on one of the parents,, is there somehow I can use "EQ_CODE_SELECT_LOCATION"? Also I wounder how is possible to send data to a child activity?

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Android :: Finish Child Activity From Another In Droid?

Sep 14, 2010

I have a parent activity (as ACTIVITY GROUP) and some child activity of this parent activity (as ACTIVITY).
I am just calling child1 now i want to move from child1 to child2 and just want to finish() child1.
But when i am calling finish() it is also finishing the parent activity.

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Android :: Finish Parent Activity From Child?

Mar 30, 2010

My child activity X is called from Parent activity P through startActivity(intent). I want to close P when X called its finish() method. I override a method finishFromChild(Activity child) in P and called finish() in it. But this functions (finishFromChild(Activity child)) is not being called after X finish() Is it a known bug or I am missing some thing? I googled and also searched the groups but no help.

An alternative could be... using StartActivityForResult() and a "fake" onActivityResult, where I can finish the parent activity, but this way is quite bad, i think...

I prefer the first one, if it would work....

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Android :: Parent And Child Activity OnCreate?

Jul 2, 2010

I have a parent activity, and a child activity that extends the parent activity. When the parent starts the child activity,

Which onCreate gets executed first? The child's or parent's?

There is a particular variable I am setting in the Child activity's onCreate method, and right now, it looks like it takes a while to get to the Child activity's onCreate, and so the methods in the Parent are reporting an empty variable. Whereas when I make the Parent sleep for a while, it reports the correct variable.

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

So, basically, even after the Parent starts the Child, it still returns "Parent Value", but when I have the thread sleep, it return "Child Value".

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Android :: Child Activity Lifetime In Background

Sep 15, 2010

I have next problem, I have got parent activity and few sub- activities, if app goes to the background by pressed HOME button for long time, all children will be killed, and my app restart from parent activity.

For example: A1 - parent, A2,A3,A4 - sub-activities. A1-->A2-- >A3(top), from A3 I go to the background (HOME). wait 30-40 min and

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Android :: Want To Open New Child Activity In Parent LinearLayout

Nov 8, 2010

I want to open new child activity in the parent LinearLayout. Just similar like Tabs.

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Android :: How To Receive Signals In An Activity To Kill Child Process?

Jun 2, 2010

My application calls Runtime.exec() to launch an executable in a separate process at start up time. I would like this child process to get killed when parent activity exits. Now I can use onDestroy() to handle regular cases, but not "Force quit", shutdowns from DDMS, or kill from the console since those don't run onDestroy(). The addShutdownHandler() does not seem to be invoked in these cases either. Is there any other hook or signal handler that informs my activity that it's about to get terminated? As an alternative is there a way to have the system automatically kill the child process when the parent die?

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Android :: Implement Master And Child Page Like Activity In Droid?

Jan 28, 2010

I want to place a common banner and menu on each Activity with footer too.

Can anyone guide me how can I implement master and child page like asp.net in Android?

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Android : Child Activity Exit By Unexpected Exception - OnActivityResult - Is Not Called

Jun 23, 2010

I have faced with issue about startActivityForResult() and onActivityResult(). If child activity started by the startActivityForResult() exit by unexpected exception the onActivityResult() is not called and I have no any ideas how can I handle this to get application working in a fail-safe manner ?

When my code runs child activity with startActivityForResult() it awaits until onActivityResult() will be invoked to get working further, but onActivityResult() is not calling and my code is "hang- up" (logically).

So the question is how can I handle all possible ways the child activity is finished (normally and by unexpected exception) to get fail-safe code ?

I have check the documentation for this issue but have found nothing relating issue.

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Android :: FinishFromChild And OnActivityResult Not Firing When Child Starts Activity Of Same Type As Parent

Jun 8, 2010

I have an application, which (for the sake of simplicity) has two types of activities - Overview and DetailView. The Overview activity shows a list of steps and allows the user to start a DetailView activity corresponding to the step chosen.

In the DetailView activity, the user can start another Overview, which shows different steps than the ones in the parent of the current DetailView.

In the Overview, DetailView is started by using startActivityForResult (). In the DetailView, when the user decides to start a second Overview, I call setResult () and finish () and then start the new Overview. In this scenario, onActivityResult () and finishFromChild () do not fire. Instead, they fire when the parent finishes (?).

Code from Overview:

CODE:....

Code from DetailView:

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

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Android :: Getting An Asset Outside Of Main Activity

Nov 30, 2009

From digging around a bit, getAssets() is an inherited method from ContextWrapper. It returns an AssetManager, and using open() it can return an InputStream. What I'm attempting to do at this point, is use the GLSurfuceViewActivity, Cube and CubeRenderer to work and learn off of and read in vertex data from a binary file. I've already created the binary output by parsing a model obj file and added to the assets directory. My Shape class (modified from the Cube class) does not have access to calling getAssets() since it's not a subclass of Activity or ContextWrapper. Once I accepted that, I tried to think of the best way to read in the data (without storing it extra places) to the Shape class. What I did, and seems to be working okay, was modify the Shape and ShapeRenderer constructors to accept an AssetManger as a parameter.

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Android :: Application Without Main Activity?

Oct 5, 2010

Is there a way to manage application activities by hand, like this: user activating an application from menu, it does some initialization, then creates some activity (is it necessar y to declare all activities in the application manifest?), and listens to it's events. On some event application decides to close one activity and open another - so it contains all the application logic. Didn't found anything like this in examples, they all have all the logic in the activity classes. Maybe I need to user Services? (Maybe I don't understand right, what an activity represents. For me it's like window in windows, or Displayable in j2me) I'm very new to android development, trying to understand the basics.

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Android :: How To Tab In Activity To Display Main.xml?

Apr 6, 2010

I am trying to make a app with the tuotrail of the developerspage, then I would like to display a main.xml in a tabview, instead the textview, wich in the tuotrail,is in the activity.How do I tell my tab in activity do display the main.xml?

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Android : Back Button - Go Main Page From View

Dec 11, 2009

Am creating a small application In View Page am doing update and delete operation from database am displaying data s in the top (ex 10 records) and bottom i have 2 buttons Edit and delete if user clicks Edit button it redirects to Edit page In Edit page i am displaying content for editing also i have 2 buttons update and cancel if user click update again am redirecting(using start activity) to view page It is not displaying new records. i went back to main page and then i clicked view page now it is updated How to solve this ??? Another problem is At the same if user clicks back button it is going all page which i went (through redirected page)

For example First i clicked view page from main page in view page am doing edit and delete operation after completing this it goes to view page Here i am clicking back button it is going previous page that is edit or delete page which i have performed last I need to go main page from view (after performing edit or delete op) How to do this ?

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Android :: Service Updating Main Activity Gui

Aug 24, 2010

I have a service which collect data and send them to a certain URL and updating the main activity GUI, so which is better in the performance to use a long service with listeners to collect the data and threads in it to update the GUI and sends to the internet or to make another service responsible for updating the GUI and sending to the URL only while the first one just collects the data?

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Android :: Service Bound To Main Activity

Nov 11, 2010

so the application I've written has a service (that tracks GPS data) with a single main activity that binds to it with bindService in it's onStart() method, and unbinds from the service in it's onStop() method using unbindService( ServiceConnection ). I also have an activity which is an options screen, that is launched by pressing a button on the main activity. On this options screen, I have a checkbox that says "Run in background", which, if set to true, means that when the user exits the application with eier the Home or Back buttons, the service will continue running, not turning the GPS off. I do this by calling this.startForeground onUnbind, and this.stopForeground onRebind, if the setting is set to true, and stopping and starting my location reader onUnbind and onRebind respectively if the setting is false. If the service is running in the background, it also displays a notification to ensure the user understands that the GPS is still running and draining their power. This notification is displayed and stopped by relying on the startForeground and stopForeground methods......

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Android :: Initialize Preferences From XML In Main Activity

May 20, 2010

My problem is that when I start application and user didn't open my PreferenceActivity so when I retrieve them don't get any default values defined in my preference.xml file. Code...

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