Android :: Don't Need Previous Activities Load On Pressing Back Button On First Activity

Jul 15, 2010

When i leave my app after pressing home button and then re launch it from menus it behaves in a strange way.Sometimes it launches the same activity on which i pressed home button.But sometimes it launches the first activity of my app. One reason for this could be that whenever system has memory shortage it clears any activities existing in But the strange thing is if i press back button from first activity it takes me back to the same activity on which i pressed home button and all other previous activities are also there(like if i press back button again previous activities also exist.)I haven't set any launching mode for any activity in my app(like single instance etc).What i don't need is that previous activities load on pressing back button on first activity.

Android :: don't need previous activities load on pressing back button on first activity


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Android :: Back Button Doesn't Go To Previous Activity

Jul 4, 2010

I have two activities. The first is a list where the user selects one of the items which takes them to a second activity showing the details of the item they selected. When the user clicks the back button I want the app to return to the first activity.

Is there anything special i need to do to make this happen?

Right now when I click the back button from the second activity it exits the app just like the home button would.

Here is how I am starting the Second Activity. startActivity(new Intent(getApplication(), SecondActivity.class)); finish();

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Android :: Activity State On Pressing Back And Home Button On Screen

May 6, 2009

Whenever I press the home button when Im in the root task of my application and when I click on the icon of my app again the state of my task (activity) is retained, but when i press the back button on the emulator and when I open my application its state is not retained. I want the state to be retained in both the scenarios.

In the mnifest I have given the below entries,

android:alwaysRetainTaskState="true" for the root activity

android:launchMode="singleTask" for the application

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Android :: Service Stop When Pressing Back Button

Mar 19, 2010

I created and binded a service in an activity and I would like to know how I can avoiding the android application to stop when I press the back button. When the back button is pressed the onDestroy method is called and I unbinded the service in this method. I try to prevent it by taking care of the back button event and manually call for onStop() method but it always called onDestroy after, why?

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Android :: Does Pressing Back Always Cause Activity To Finish()?

May 10, 2010

I've heard that pressing the back button will essentially cause the current Activity to finish(). Is this always the case? Seems like it would be with the way it pops the Activity off the stack.

The one situation I'm not so sure about is when the root Activity in a Task has back pressed. I'm currently experiencing a very weird effect, described as follows:

On loading my application, the first Activity is for initialization, and once it finishes, it calls my main Activity (a TabActivity). This first init activity has android:noHistory="true" set in the Manifest so pressing Back from my main Activity won't go back to that. It goes to the Launcher. When I click on my App in the Launcher a second time, the initialization activity loads again, and loads the main Activity when done. Almost immediately after, it loads a second instance of my main Activity. But ONLY after the Application has already been run once, and was exited by pressing BACK from the main Activity. It does it every subsequent time until I force quit the app or load a new version from the IDE.

Based on this, I am suspecting some kind of Activity instance is lying around and being reused, since it only happens on the second+ time I run the application (and exit with BACK -- using HOME just returns to the last state of the app, no big deal).

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HTC Droid Eris :: Weird Screen While Pressing Back Button

Feb 27, 2010

I notice on my eris that when i am on a menu with a black background that if i hit my back (bottom button) a little firmly, right above the button on the lcd kind of changes colors. Like if you press your laptop screen, its only a little bit though. If you could, please try this and report back.

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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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General :: Back Button Not Returning To Previous Position?

Nov 2, 2013

i've just returned to Android after about a year and a half and I never remember having this "issue" with my old galaxy s2x. But i am finding that whenever i am scrolling down a list, facebook, instagram, or even a webpage, and i hit the back button, it always starts me from the very TOP of the page again. I am used to just hitting back and having it remember my position halfway down or wherever i was. is this just an android thing?!

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HTC Desire :: Browser Long Pressing On Back Button Takes Straight To History Page

Aug 8, 2010

When you're in the browser long pressing on the back button takes you straight to the history page, very useful.

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Android :: Android Pressing Back Button Should Exit Application

Mar 1, 2010

on intent when user press back button should exit from the application, how can i track back button and exit from the app?

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Android : Back Button On Emulator When Multiple Activities Are There In Single Tab

Oct 13, 2010

I have created two tabs, say TAB1 and TAB2. For TAB1, i have loaded one Activity, say ActivityOne, into TAB1 as Code...

When we click on that button ActivityOne_One will be launched under same TAB1. In this application i have two problems:
1) If i want to go back to ActivityOne under same TAB1 by using traditional BACK button on emulator it is not working..
2)ActivityOne_One is launching with no animation(like sliding from right to left) effect.

If anyone know about any one of these, give your advice.

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Android :: How To Restore List Data / When Pressing "back" Button?

Mar 15, 2010

My question is about restoring complex activity related data when coming back to the activity using the "back" button". Activity A has a ListView which is connected to Array Adapter serving as its data source - this happens in on Create(). By default, if I move to activity B and press "back" to get back to activity A, does my list stay intact with all the data or do I just get visual "copy" of the screen but the data is lost? What can I do when more than activities are involved? Let's say activity A starts activity B which starts activity C and then I press "back" twice to get to A. How do I ensure the integrity of the A's data when it gets back to the foreground? Prefs Manager does not seem to handle complex object very intuitively.

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Android :: How To Control Activity Flow - Back Button Versus Home Button

Sep 2, 2010

I have 3 activities in my app: Activity1 -> Activity2 -> Activity3. Inside Activity3, if the user presses Back, I would like to return to Activity2. In Activity3's onPause event, I added a finish() statement. That's probably not even necessary, but I wanted to make sure this Activity gets cleaned up. This works fine.
However, while in Activity3, if the user presses Home or starts a new app (through notification bar or some other means), I want both Activity3 and Activity2 to finish. If the user returns to this app, he should resume with Activity1.

I have figured out how to do one or the other, but I can't figure out how to handle both cases, if it's even possible. Can I trap the "Back" button in Activity3 and send a message back to Activity2 telling it not to finish()? It seems like the Activities follow the same lifecycle flow (Pause, Stop) regardless of what you do to send them to the background. Just to answer the question of why I want this behavior, imagine that Activity1 is a login screen, Activity2 is a selection screen, and Activity3 is a content screen. If I press Back from the content page, I want to be able to make a new selection. If I exit via any other means (Home, notification bar), I want the user to be "logged out".

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Android :: Possible With One Call To Finish All Previous Activities?

May 30, 2009

Is it possible with one call to finish all previous Activities. (like: this.finish(all) :)

I have a main activity, calling a preferences and there is a switchuser point that switch the user and call the main activity again. But than i don't need that the user can go back, step by step, It would be just fine i could say "kill all previous activities" in the moment the user click "switch user".

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HTC Desire :: Site Load Instantly Without Reload To Server When Push Back Button?

Jun 6, 2010

When we open some sites and read more details some stories, when we push back button, it's look the browser re open the current site. Is it possible if we push back button, the site will load instantly without reload to server?

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Android :: Back Button Activity

Aug 25, 2010

I was wondering how or if it is possible to exclude activities from the back buttons history list? For example not letting the user back into the Splash Screen?

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Android : Activity And Back Button

Nov 2, 2010

on the ui i am having a back button displayed. there are three activities say A,B,C. Activity A is splash screen. Activity B is home screen. Activity C is edit screen. on edit screen only i am having a back button. when the user press that i open the activity B which also contains some sort of http request and response. i want that the previous activity from stack should get displayed? how can i achieve that? i am able to open previous activity on pressing the back button of device? when i press back button on device there doesnt goes any http request? i want to achieve this behaviour when i press the ui back button.

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Android : Back Button And Last Activity

Aug 17, 2010

My app chains some activities.

if you press the back button, you go back through old activities then you suddenly quit the application !

so I need to show a message like "do you really want to exit" if it's the last activity on stack

I know how to override the back button but i can't figure how to know how many activity are in history

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

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Android :: Star Activity And Back Button

Oct 22, 2009

I am starting an external activity from my application and would like the back button to return the user to the point in my application where they started the activity. is this possible?

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Android : Back Button Not Stopping Activity

Feb 28, 2009

In my game, I've got one activity starting another activity via an intent. When the user is finished with the second activity, they quit it using the back button. However, I have a problem: when this happens, the second activity is still running, even if it's quit with the back button.

My second activity will eventually give a "game over" message using a pop up window if there is no user input for a period of time. Problem is, when I back out of the second activity (where the game is happening) the "game over" message still appears eventually. This is how I know the second activity is still running. It even displays a "game over" message if my entire app is quit (on the Android OS).

How do I stop an activity completely when the user presses the back button?

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Android :: Load XML File By Slowly Hiding Previous XML?

Jul 31, 2010

Can we load an XML file by slowly hiding the previous XML? I want a splash screen effect.

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Android :: Moving Back To First Activity On Button Click

May 5, 2010

I am writing a application where I am dealing with 4 activities, let's say A, B, C & D. Activity A invokes B, B invokes C, C invokes D. On each of the activity, I have a button called "home" button. When user clicks on home button in any of the B, C, D activities, application should go back to A activity screen ?

How to simulate "home" button in this case ?

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Android :: Finish Any Previous Activity In Stack From Current Activity?

Apr 27, 2010

How to finish any previous activity in application stack (at any level , I mean not immediate parent) , from current activity like on some particular event I want to invalidate this previous activity?

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Android :: Current Activity Force Closes - Tries To Go To Previous Activity

Nov 5, 2010

The default behavior from my observation is if current activity force closes Android tries to go to previous activity on stack How can I control this behavior? I want force close to close all activities

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Android :: How To Pass Result From Activity Terminated By BACK Button?

Apr 20, 2010

I am trying to setResult after the BACK button was pressed. I call in onDestroy. So, how can I pass result from activity terminated by BACK button?

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Android :: How To Override The Back Button So It Doesn't Finish() My Activity

Jun 29, 2010

I currently have an Activity that when it gets displayed a Notification will also get displayed in the Notification bar.

This is so that when the User presses home and the Activity gets pushed to the background they can get back to the Activity via the Notification.

The problem arises when a User presses the back button, my Activity gets destroyed but the Notification remains as I want the user to be able to press back but still be able to get to the Activity via the Notification. But when a USER tries this I get Null Pointers as its trying to start a new activity rather than bringing back the old one.

So essentially I want the Back button to act the exact same as the Home button and here is how I have tried so far:

CODE:.........

However the above code still seems to allow my Activity to be destroyed, How can I stop my Activity from being destroyed when the back button is pressed?

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Android :: Data Of Previous Activity Gone When New Activity Starts

Dec 30, 2009

I am developing an application in which the user require to register first and than got the user page. For that i have made layout and the layout consist many fields, so, i have made part of layout and also made the separate activity for the each layout. The layout like address, phone, etc... After that i have wrote the code for calling an activity and it works fine. It means when i press the "Next" button the another page will come and it will also consist some textview ,edittext and previous and next button. Actually, i want something different like -- When the user fill the first form and he will proceed to next, the content written by the user should not gone when the user press "Next" button. The content should be there which was written by user. And same way i have have 6 pages like that way to complete the registration process. So, have you any idea to solve above problem? I really need your help because right now i stuck at this point. So, please any body help me out of this problem. I would appreciate your help. I am waiting for your reply.

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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 :: Pass Value Back To Same Activity On Button Click And Refresh Page?

Jan 21, 2010

I need to pass a value back to the same activity and refresh the activity to generate new data. Can anyone please provide me some ideas/guidance on how to do it?
I had try using intent to call the same activity but it doesn't work. Here is the code which i tried to use intent code...

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Android : Make An Activity Destory When User Presses 'Back Button?

Sep 27, 2009

When I currently have my activity on the font of the screen, how can I make Android to 'destory' my activity when user clicks 'back' button? (i.e. onDestory of my Activity gets called)?

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