Android :: How Can Display Saved Data When Restart Activity
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
I have to display progress bar with last activity progress.
Here I tried using onSaveInstanceState() method. But I cant display progress bar with last progress. when I exit the activity player is playing but when I restart activity it stopped and displayed new view without any progress and saved data.
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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.
However setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) forces my Activity restart in a very little while (means onCreate->onResume->onPause->onStop are executed twice at the first place). As a result, my background thread be stopped/restarted during the initialization process, and this makes me a mess at this moment.
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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.
How should i implement this? How to wait for users answer and continue when onClick or OnTouch listener finishes?
Should i use Handler class, intents or something else?
I want next scenario:
On the screen I have a question and 3-4 clickable ImageButtons. I'm building some of the layout dinamically from custom showQA() function. User choose the answer and if he clicked the correct answer i should start some type of animation on the screen. I've done that from the onClickListener. Now, i need to build layout again(show new question and answers) from the showQA() function which must be called after that animation showed to the user. How can i know when the onClickListener() finished its work?
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Sep 9, 2009
Is there a way to restart an activity? The reason is that need to change the theme dynamically, and the activity needs to be restarted and redraw itself after the change.
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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...
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Mar 8, 2010
Activity SplashScreen is the launching activity for my app. It sends a request to my server and gets back a user data it then uses to populate a user object which is a static object. Once it has that it calls the MyMapView activity and finishes itself. A force close occurs when I hit the home button and then open up enough other apps so that Android kills MyMapView to get more resources. Now when I open my app again it tries to start MyMapView and bypasses SplashScreen. There is no user object so I get null pointer exceptions. I have tried to Override the onSaveInstanceState and OnRestoreInstanceState but it seems that those are not available when Android kills the activity. I also tried android:finishOnTaskLaunch with the SplashScreen (maybe this should be put on MyMapView but the article I read said different) and that seems to have no effect. What I would like is for the activity to not restart after Android has killed it. What can I do about this?
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Mar 18, 2010
For an unknown reason, I can't get my application leaving properly so that when I push the home button and the app icon again I resume where I was in the app....But I would like to force the application to restart at the first activity...I suppose this has something to do with onDestroy() or maybe onPause() but I don't know what to do..
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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
But 'B' gets relaunched, its onCreate() method is called. Since B is already in the history stack, is there a way I can use this flag, but have it *not* recreate B, just onResume() it again? The reordering flags are kind of what I need too, but they won't pop C and D, just reshuffle the stack so B comes to the top, but I want C and D to go away.
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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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Mar 19, 2010
I want to make an activity that allows orientation changes on some condition, but not otherwise. More exactly I want to prevent restarting the activity when a background thread is busy.
I have put the configChanges attribute on the activity manifest, and onConfigurationChanged is called when the orientation changes. However I want to allow the app to change the orientation when allowed.
CODE:...................
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Jan 13, 2010
My application has two activities, that I start in this order: HOME > A > B Now I press HOME and launch "A" again. I would like to see activity "B" on a top of "A", but instead I get "A" - so the activity stack is cleared. Manifest: <activity android:name=".activity.A" android:label="A" android:always Retain Task State = "true">What should I do?
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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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Mar 17, 2010
I have a single Activity application, within it I have a service which creates an AlarmManager and sends a broadcast to a broadcast Receiver.If the activity which starts the services dies, (ie. divide by zero), the broadcast receiver stops the old service which created the AlarmManager.It works the first time. The second time, it does not.It seems like the AlarmManager is still active but the broadcast receiver is no longer receiving. It works great once!
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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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Oct 30, 2010
I am dispalying some data by using sqlite .when i click on one button data come from database. It takes some time. At that time the screen is black .At that time I want to display the rotating spinner before the data dispaly.
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Aug 30, 2010
In my application I am sending data to server if I had not pressed back button when data is sending to server then data is successfully saved on server and new screen (one created in layout folder) is displayed which says data is stored. But at the time of sending data if i pressed back button then also data successfully saved on server but I can't see that new screen that data is stored on server. How to handle this situation?
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Sep 7, 2010
Is there a way i can look at all the saved data information on my sd card? For instance id like too know information about how much space each mp3 is taking up and generally what else i have saved on there?? I also have backed up my theme i am using with launcherpro and it says this gets saved to the sd card. I have done this about 10 times as i save it everytime i tweak it but i no longer need the previous saved ones so how can i delete them?
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Jan 3, 2013
I am having a problem with my galaxy note 2, jellybean 4.1.2, rooted
After I restart my device, some apps stops working, when I clikc them, it says unfortunately, the app XXX stopped working.. with no report option.Also, some apps that still working, their data just get reset.. like I have never opened them..
I tried a factory reset and flashing new jellybean version (4.1.2) but I am still having this problem.. tell me whats happening? It's like the device is not loading the apps after restart or what exactly?
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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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May 16, 2010
I just got 2.1 installed and love the difference (didn't used the leaked versions). After flashing and reinstalling the apps using MyBackup, I am left disappointed that the data that goes with the apps didn't make it. I am missing all my Mileage app entries, Storm8's long list of game data, etc. Is there a backup app that would have saved all the application data?
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May 15, 2009
I am developing a ToDo reminder type of app for android. on creation of a new reminder an alarm and vibrator scheduler is created with a toast. This works on intents and broadcasts and is pretty straight forward stuff with putextras using the reminder id from the db. My problem is, if some one restart the phone, i guess all the scheduled alarm and vibrator tasks for the reminder will be killed. Once the phone restart again how to recreate the scheduler tasks.
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May 8, 2010
My app intiates an activity. On the click of a button, the app opens up the browser with a webpage. When I hit the back button, it comes back to my initial activity screen, but does not resume or restart the activity.
When I put all the layout code and activity code in onResume instead of onCreate, the activity gets restarted.
My question is whether this is the right way to go about it? Can I use onResume to draw my layout and initiate the activity, or is this poor design? When the browser fires up, does the initial activity forget its layout?
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Jan 4, 2013
I download apps from play store, amazon appstore and other places..
When I restart my phone, Some apps (no matter where are they from (play, amazon, etc.)) They stop working.. they dont work anymore.. and I will have to re install the apps again and loss all data
And also some apps that still work, they start like its the first time I am starting them and all data in them are lost..
I tried multiple things to fix this like I factory reset my phone and also tried to flash new version of stock rom but I still have this problem.
My device: Galaxy Note 2, jelly bean 4.1.2, rooted (no custom rom indtslled)
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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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Apr 20, 2010
I have noticed that when aps restart my phone, it takes about 15 to 20 seconds to restart When i Power down, it takes MINUTES!Does anyone know of simple restart app I could use to avoid this? If not, anyone know someone who could make one?
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Nov 2, 2010
I have tab bar in my application .In this I have three tab .it will call three activity .in activity i have the list view .if i click the list view it will call different activity other than tab activity.can anybody tell how to display tab bar for other activity give example?
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Nov 24, 2010
I am wrting an android application which displays some buttons dynamically in a linear layout with vertical orientation.When ever we click on any button a new activity should start in the same frame . How can this be possible ? can anyone help me in solving this issue.I will be waiting for reply.
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Aug 12, 2010
I have a Activity called main. If I call Toast.makeText(this, "Hello World from main", Toast.LENGTH_SHORT); this works fine. However, for every other activity in my application, I cannot display a Toast. No exception, nothing in the Log but I don't see the Toast. Code...
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Feb 10, 2010
I simply want to create a ListView above this webview (covering it up...but sitll allowing the webview to run). I could toggle the views on and off.
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Dec 30, 2009
I have Activity named whereActity which is having child dialogs as well.
now i want to display this activity is as a dialog for another activity..
how can i do that?
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