My application has floating pop up window (Pop up Window) that is successfully displayed on user click. When screen orientation is changed, everything is recreated and I want my Pop up to remain visible. on Restore Instance State is called and my Pop up function crashes whilst calling "show At Location".
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I need to save some state when the user leaves my game during game play. Saving the state doesn't seem to be an issue, but I can't figure out how to restore it. The onCreate function isn't called when the Activity is resumed (only when it is first created), so I can't get my state back there. Logically, I would use onRestoreInstanceState, but it isn't being called.
CODE:..........
I see log output from onSaveInstanceState, onResume, onCreate, etc, but I never see a log message from onRestoreInstanceState and savedState is always null. Why isn't onRestoreInstanceState being called, and is there another way to get my state back?
In Android, you need to implement the following Activity methods so your application can be restored to its previous state if the OS decides to destroy then recreate your activity:
public void onSaveInstanceState(Bundle savedInstanceState)
public void onRestoreInstanceState(Bundle savedInstanceState)
The examples I've seen of implementing these methods is to use put/getBoolean, put/getInt etc. on the Bundle object (i.e. primitive objects only) to save the application state. This seems hugely error prone way to save your state for a start and I cannot see how this scales to storing complex objects without writing lots of code.
What options do I have for storing/restoring state in a robust and easy to implement fashion?
In case it's important, my application (a game) needs to store about 50 objects, which each store maybe 5 float variables and some store references to other objects. I don't particularly want to have to write save/restore methods for every class and subclass (maybe about 15 of these) I use. It would be ideal if I could just stick all my state relevant objects in an object called "state" and then just call save/load on "state" to handle everything.
Is using Java serialization an option? I've heard it's very slow, but is that a problem for save/restoring? Could I just write my data to the SD card? To a database?
I wonder what is the right way to implement this? Could anybody advice whether my solution is correct?
So:
Activity is created
User clicks on button and dialog is launched (Dialog, not dialog styled activity)
User opens keyboard
we have onSaveInstanceState called where we save that our dialog was opened and all respective dialog input
we have onRestoreInstanceState and here we check whether dialog was shown, recreate the dialog with respective input.
Is it the right approach? or there is smth. that is done by Android and I am doing some redundant actions.
As a follow on from my question on sharing state between Activities, how can I save the instance state of my Application? Since Application does not extend Activity, there is no onSaveInstanceState method to override.
NB: In advance, this is not a duplicate. Despite its name, How do I save an Android application's state? relates to Activity state
I've got an android app that pulls a random 20 questions (rows) as a cursor from a SQLite DB and loops through all the questions to ask the user all 20 questions.
Is there some way to save the cursor's state/location when the activity is paused or stopped so that when the activity resumes the cursor is restored and in the same position as it was when the activity was paused/stopped?
I created an instance of a custom class RestaurantList to hold my data (a list of restaurant data received from a web service as json data).How can I save it in onSaveInstanceState? Code...
View 1 Replies View RelatedI'm trying to use OAuth in an Android app. I have it working correctly but have sometimes run into a problem during the authentication phase. In Android, I launch the browser for the user to login and authenticate. Then the callback url will redirect back to my application.
Here is the problem. My application has a OAuth consumer and provider as members of my main class. When the browser is launched for authentication, sometimes my main Activity is discarded to save memory. When the callback url relaunches my main Activity, the provider and consumer are new instances and therefor don't work when I try to make a request to the api. If the main Activiy was not freed during the authentication phase, then everything works correctly because I'm still working with the original consumer and provider.
I tried using onSaveInstanceState() and onRestoreInstanceState(), but haven't been successful. It seems the onRestoreInstanceState() is not called when my callback url is handled. Seems to go straight to the onResume().
What is the correct method for persisting the consumer and provider in this case?
I was trying to root my samsng behold 2 earlier today using the command codes on theunlockr.com. I thought everything was going well as I went all the way to the last step where it rebooted my behold 2. Problem is, the phone kinda just turned off after doing the reboot command and didn't turn back on by itself (I gave it like 10 minutes). I eventually then just turned on the phone manually and noticed that everything was super laggy. Even when I used taskkiller to kill every task minus GDE, it said I only had 38MB ram available. I rebooted my phone a few times and it was laggy everytime so I decided to do a hard reset. The problem is that when I attempted the hard-reset, it will now get stuck on the samsung screen when trying to load up (stayed there for over 30 minutes). I can still enter the phone if I just start it up regularly without trying to hard-reset, but it will continue to be VERY laggy.
Is there anything I can do to restore this phone back to its original state? I was reading about using ODIN to flash it or something, but for some reason my computer doesn't detect my phone when I go into Download mode on startup (it does however detect the usb drivers on my phone once the phone officially startsup into its homepage).
I have a compound UI component built up from a ViewGroup containing a number of TextView, ImageView etc. components. Many of these have StateListDrawables as their images/backgrounds. Is there any way of making them select from this drawable based on the state of the parent ViewGroup rather than the component itself? Ideally I want to be able to change the visual state of all children of the ViewGroup (text colour, image etc) based on the state of the ViewGroup, preferably without having to hook up complex logical code. This seems like a fairly common sort of requirement, so I was hoping it would be straightforward in Android - am I going to be disappointed?
View 1 Replies View RelatedI'm a little confused by what I'm seeing with regards to phone state transitions via the PhoneStateListener. When I receive a call, this is what happens: (call comes in) RINGING -> IDLE (I pick up) OFFHOOK (I hang up) IDLE It's that first transition from RINGING to IDLE without any interaction from me (not ending the call, not answering the call) that confuses me. Do I really have to implement an idle counter to know that an incoming call has really ended? Seems like the reported phone state represents some sort of phone state that isn't the obvious one.Is this a bug or am I just not in tune with the paradigm here?
View 2 Replies View RelatedWhat is the basic difference between the PhoneWindow and MidWindow policies? I found that the emulator version takes the implementations of the PhoneWindow.When the MidWindow implementations will be used? Also, I found that PhoneWindow handles the call settings implementation and the same is not there in MidWindow? Please someone help me pointing out the differences between both the policies and under which circumstances which one will be used.
View 6 Replies View RelatedI have my hand cent set an I Phone conversation style. The other day i was scrolling down reading messages and all of a sudden the bubbles went from about half the screen to stretching all the way across the screen. One on top of another. But they were still in bubble format and different colors for sent and received. They were just longer which i thought made them easier to read. I kind of liked it, but next time i opened it they were back to normal. I'm not sure if this was some kind of glitch, or if some way i was pressing down on the screen made them change. But I have not been able to recreate this.
View 5 Replies View RelatedAfter I do some change in my database, that involves significant change in my views, I would like to redraw, re-execute on Create. How is that possible?
View 4 Replies View RelatedI am trying to recreate and re inflate a View Stub each time an Image Button is pressed because at the moment my app crashes as soon as I press the button a second time (due to a Null Pointer Exception caused by the View Stub that doesn't exist anymore) but I am a little stuck as I don't know how to recreate and reinvokes the View Stub.
View 6 Replies View RelatedI just had the odd case that my Android project for some reason would not properly rebuild in Eclipse (v3.5/Galileo). Occasionally that happen and so I did the usual Project => Clean... as I always do in such cases. But this time I now have the odd effect that almost all files show bugs, and looking closer it's that the compiler can't find the R-file (which is indeed missing from the gen subtree). How do I force eclipse to rebuild that file?
View 1 Replies View RelatedDoes anyone have an example on how to recreate a webview display by using the capturepicture() method? Can I save the resulting object in SQLLite and how do I put it on the canvas?
View 2 Replies View RelatedI'm wanting some advice from those who have used their Desires as a hotspot (either on 2.2 natively or with an app). How reliable and how fast is it?
The reason I ask: I'm thinking of getting an ipad (cue the abuse!) and rather than spend he extra on the 3G model I was considering using my Desire as a wifi hotspot.
Previously, I had an iphone 3G jailbroken and used the mywi app to do what I've just explained but with my laptop. It worked really well although not flawlessly.
Also, after some testing with the same sim card, I found it to be a bit slower than either a dongle or by connecting the phone via USB to the laptop (the latter of course won't be an option with the USB-less ipad!)
My suspicion is that I'm probably better off spending the extra as it probably won't be flawless, or as fast, using my phone as a wifi spot.
basically, I'm using Async for my socket, the idea is the applications runs, i press buttons, it sends commands to my pc, the program works fine until that is...
it loses focus, at which point everything i've tried does not bring the thread or socket back to life, all i want to do is re-create the socket when the application gets focus.[code]....
So how do i get this Async thread active again once the app loses focus?
I was working on implementing a more advanced list view then the standard one they teach you in basic tutorials, and I did find a great tutorial explaining how to create your own Adapter and such not. http://www.softwarepassion.com/android-series-custom-listview-items-a...
I do have a working version of the tutorial and I am currently in the process of changing the list to suit my needs, but there are a few issues I am stumped on. If your run the tutorial code it creates a little progress dialog saying that it is retrieving data. In my application it is going to be fetching data from the internet and storing it in an ArrayList of custom objects. However if I where to rotate the screen the progress dialog pops up again, I have no clue on how to set it up so that when it rotates that it doesn't recreate everything and re-fetch the data and process it again.
I have configured my yahoo business mail on Email of Samsung Galaxy S phone. After 5 days, mail stops coming in. When I go to Manage Applications, 'Clear Cache' is always disabled. Only 'Clear Data' is enabled. I don't want to clear data and recreate every week. Any other way to enable 'Clear Cache'.
View 2 Replies View Related<html>
<script language="javascript">
/* This function is invoked by the activity */
function wave() {
alert("1");
document.getElementById("droid").src="android_waving.png";
alert("2");
}
</script>
<body>
<!-- Calls into the javascript interface for the activity -->
<a onClick="window.demo.clickOnAndroid()"><div style="width:80px;
margin:0px auto;
padding:10px;
text-align:center;
border:2px solid #202020;" >
<img id="droid" src="android_normal.png"/><br>
Click me!
</div></a>
</body>
</html>
What is "window.demo.clickOnAndroid()"? I know that clickOnAndroid is a method in my Android application. But what is window and demo? My file is called demo.html. Is that it?
Anyone else had abny issues with the back up restore function? I tried to do a software update, to which something seems to have happened. All i can see for the time being is an update to the virtual keyboard. Anyway, lost apps, contacts etc, so went into the menu on the handset and selected back up, restore. Restored numbers etc to phone book and over 150 number details are missing. The back up utility doesn't seem to have backed up all my numbers. Also, any personal photo's of callers etc have either vanished or the photo's are now against the wrong people. So much for this back up service, it's going to take hours, if not days to try to get the phone back tot he way it was!
View 5 Replies View RelatedToday the rom bug bit me and I tried about 3 or 4 different roms (after TIbackup and nand backup of course) including xtrROM and ELB, hated them all, and decided to go back to my beloved sense-able 3.1 nand backup.
wiped, restored, and now all my market links are gone. (except for gmaps, for some reason). TIbackup refuses to even install again from the market because the package signature is incorrect, or something. TIb said it was supposed to restore market links.any suggestions? is there even any way to restore a market link besides just reinstalling the program outright? I found this thread http://androidforums.com/all-things-root-hero/81290-market-does-not-see-all-my-downloads-after-nandroid-restore.html as reference. All my programs will show as "installed" if I search them in market.either way, sense-able was definitely the sexiest-out of the box ROM I tried. everything else without sense was just ugh, looked like I'd loaded up a G1. couldn't tell a speed difference at all with the same setCPU profile, and xtrROM was so bad on battery I only made it through few hours before uninstalling. I cannot live with the sense keyboard and search-dialer.
I Installed Smoked Glass V5.0 from V4.5. I ended up doing it twice, and to make a long story short I lost my files in AK Notebook.
Here's my question:
1. Should I backup my current configuration
2. Then "Restore" my backup prior to upgrade
3. Grab my files (hoping they will be there) toss them on my mac
4. Then just "Restore" back to where I am now?
Need those files by tomorrow, any assistance is much appreciated. It's not that it's an emergency without them, but I will have to do some legwork to gather that info again.
I recently updated my Mini Pro to Android 2.1, I followed the steps on the sonyericssonsupport YouTube video. I did a Backup of all my stuff on the phone, when I'd updated my phone and turned it on it asked me to setup the phone again with the Language, Time & Date etc and now when I try to restore my settings it says "Could Not Restore" when it is almost done.
View 1 Replies View RelatedI have a Nabi 2 that was rooted almost a year ago to gain access to the Google Play store.My needs have changed since then and I wanted to restore it to factory settings.
If I boot normally the Nabi is stuck here:
I have managed to get it to boot to TRWP by pressing the power and + keys. I see this:
There are no images to "restore" under the restore tab. This is what I see:
provide me with a kernel file or some tips on how to restore the machine to it's 'out-of-the-box' configuration. I want to donate this device to a young child and need to get it back into a kid friendly mode.
Since I got my Dinc back in June I have pretty much used AppBrain exclusively to install apps. If you know AppBrain, you know that your account automatically makes and saves a list of the apps you load. And you can sync this list with your phone to keep both current. It is also like a backup incase something happens to the apps on your phone. Well yesterday I was clicking my mouse faster than I was thinking and I deleted my "Apps on Phone" list from the AppBrain website. So my question is...If I run the "Sync with AppBrain" feature from my phone will it recreate the deleted "Apps on Phone" list on AppBrain or will it delete the apps from my phone
View 3 Replies View RelatedMy application has 2 activities. The main activity will create the "child" activity through startActivityForResult((...). When the child activity needs to exit, it calls setResult(..) and finish(). Child activity will start and exit multiple time upon user selection. The activity are start and exit as expected and onAcitivtyResult(..) also got invoked.
However, I found a problem with child activity, when the child activity was created the second time ( Main activity called startActivityForResult(...) upon some user event ), a new instance of child activity was created, but the displayed is the FIRST instance child activity! ( so any state in second instance of child activity was not accessible ). The onKey(...) was always go to first instance of child activity. Make things more interesting, the getInstanceCount () returns 3.
I have checked the code and no where holds the first instance of child activity which should be garbage collected after finish().
Is there a way to prevent the user of opening more than one instance of my application?
For example: User clicks on App and opens it. The user clicks on the home button. (the app is still running in the background) The user clicks on (not the menu button, but the button above it in the homescreen), and then opens the application again. Does it open the same instance, or does it create another one? If it does create another one, how can I prevent it from creating another one, and just opening the existing instance?