Android :: Best / Safest Place To Do Cleanups(e.g. Connection Release) At App Level?
Aug 24, 2009
What is the best/safest place to do cleanups at application level?
I am creating a single instance of DefaultHttpClient when the application starts up. Rest of the activities will be ustilizing same instance of client. Now I want to release all resources associated with it( or in other words make the following call client.getConnectionManager().shutdown()) only one time i.e. when the application terminates and not on onPause because that will defeat my purpose. so if I override onTerminate and onLowMemory methods and put the connection release code in both methods will that ensure that my cleanup code will definitely be called. The docs says onTerminate may not get called in some cases..so will overriding onLowMemory ensure that all cases get covered?
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Sep 1, 2010
Orange haven't had any since 26th August and won't have any until the 8th!?! What the hell is that all about lol my mate is going mad. He's called 'em up to upgrade, got a mint deal but now has to wait to receive a text to tell him that they are in stock (Like that is ever going to arrive He's been told that they receive them on an add hoc basis, sometimes 10, sometimes 700. Sounds a bit slack if you ask me. Does anyone think that there is a connection between a delayed Froyo release and low stock? Don't forget that they were blaming stock shortages on the success of the Galaxy S because it slowed down the production of the HTC as Samsung apparently manufacture the screens for both. wish I could treat my customers like this
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Jul 2, 2012
I'm having trouble developing an app, while it works in API level 10, it does not in API level 7. I wondery why and I've been looking for a site that summarizes the differences, or the new features from one API level to another and cannot find it.
09-04 04:24:21.485: E/AndroidRuntime(6834): Uncaught handler: thread main exiting due to uncaught exception
09-04 04:24:21.510: E/AndroidRuntime(6834): java.lang.VerifyError: [code]....
There seems to be a problem with an uncaught exception and reflection, although....why does it work on API level 10?
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May 17, 2010
Are there any apps that improve phone performance. Like disk cleanups or defragmenters
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Nov 19, 2009
What is the safest/best way to pay for apps in the Market?
It asks for a credit card, is this what most are doing?
I thought I had read that some were using PayPal, if so is this better?
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Apr 26, 2010
I pre-ordered an Incredible and I plan to sell my Eris. I scanned through some posts and I see that there have been just a couple of short responses to this question in other forums, so I will ask the question here in the hope that it is useful to others. Question: for safety/privacy, is it adequate to wipe my Eris via the following method before selling it? Settings --> Security --> Factory Data Reset
Do I need to do more, or will this cover it?
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Sep 17, 2010
I know Universal Androot says it supports the Galaxy S, but does that mean the Fascinate is also supported? Trying to help someone out here and want to give the easiest and safest possible rooting guidance.
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Oct 13, 2010
Hope you all are doing good. i am having query to place button in my main view. This is the code but it creates button on upper part in center but i want to shift it bit down wards. Any body knows how can i place button in main view where i want?
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Apr 6, 2012
how can I place the cube in a specific place on the screen?
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Mar 25, 2010
I am creating an application that checks the installation of a package and then launches the market-place with its id.
When I try to launch market place with id of an application say com.mybrowser.android by throwing an intent android.intent.action.VIEW with url: market://details?id=com.mybrowser.android, the market place application does launches but crashes after launch.
Note: the application com.mybrowser.android doesn't exists in the market-place.
MyApplication is my application.
CODE:..........
However, when I try to launch the market place for a package that exists in the market place say com.opera.mini.android, everything works. Log for this case:
CODE:..................
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Oct 14, 2009
I'm using ThreadSafeClientConnManager to manage a pool of client connections, because my application has several threads, which are simultaneously connecting to a webserver.
Abstract sample code:
CODE:..............
Now lets say on of this threads is downloading a large file, but then the user of my application is switching to another activity/screen. Therefor the file is needless and I'd like to abort this download connection.
In ThreadSafeClientConnManager I found this method: public ClientConnectionRequest requestConnection (HttpRoute route, Object state) Returns a new ClientConnectionRequest, from which a ManagedClientConnection can be obtained or the request can be aborted.
So far I've been using:
CODE:.........
Now from what I understand, I've to use:
httpclient.getConnectionManager().requestConnection(HttpRoute route, Object state);
And that's the point where I'm stuck. I assume that for the route I can just use new HttpRoute(new HttpHost("10.0.0.1")) or whatever my server is, but what to put in for Object state?
And second, as soon as I've the ClientConnectionManager I can call getConnection(long timeout, TimeUnit tunit). But then from there, how I do I execute my HttpGet httpRequest = new HttpGet(URL_TO_FILE); as I did before with HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);?
I've been gone through the documentation and tried out quite a few different things, but I wasn't able to obtain a working solution. Therefor any suggestions and/or code examples are more than welcome.
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May 12, 2010
Whenever a application needs internet and connection fails, I get a message dialog
Connection failed
This application requires network access. Enable mobile network or Wi-Fi to download data.
and two buttons, Settings, Cancel.
How do I detect there is no internet connection?
How do I popup a same dialog in my application?
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Oct 27, 2010
I'm coding a very basic FTP client on top of my application and I have 2 activities. The first one is the file explorer and the second one is the image viewer. Once I click on the image filename on the explorer, I want to pass the connection to the other activity to handle extra stuff. Basically, I want to keep the same org.apache.commons.net.ftp.FTPClient object (which handles the connection) alive in-between the 2 activities. I know I can't pass an object inside an intent so I don't know what my best bets are.
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Jul 23, 2010
What's the technical term for being able to have voice connection and data connection simultaneously? Like AT&T was promoting heavily for a while.Apparently, the new T-Mobile Vibrant has this capability. A friend got one and was accessing the web while talking to me, double jealous now.I have benn lusting after the Verizon version, Fascinate, and wondering if there is any chance it will as well.
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May 29, 2010
Just a heads up - ADW Launcher (in my opinion the best launcher available) is now in the Market (free!)? Many bug fixes over the release candidates. Use it, love it, if you haven't tried it, GET IT!
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May 17, 2010
I was wondering what people do to limit the phones that can purchase my app on Android Market. I image I can limit this to some extent by using the API levels in the manifest but can I limit my app to just Droid/Milestone? I have only tested the app on these phones so I can't be sure that it will work on others. There are known issues with the Milestone and choosing an OpenGL config, among other issues, that I had to work around so it's not unreasonable that other phones can have similar issues. Also how do you do dynamic licenses via http post?
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May 22, 2009
I have a problem with firing an activity that extends MapActivity. When it gets called, it throws a java.lang.NoClassDefFoundError... not sure what this is supposed to mean. I think something goes wrong with the external implementation of the maps API (maps.jar). Has anyone come across that problem? Here's the srack trace:
CODE:....................
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May 4, 2009
I am following the instructions on code signing on the Android Developer site, and it mentions that if you specify that you want to compile in Debug mode, it automatically signs the resulting file with a debug key. It also says that if you specify that Eclipse should compile in Release mode, that you can use the Export Wizard to generate a private key and handle the distribution signing.
Can someone point me to the setting in Eclipse for Release vs. Debug compiling. When I use the Export Wizard, I am only given the option to export unsigned. I am pretty sure I am stuck in Debug mode, since my app has no problem running in the emulator or my tethered G1.
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Mar 4, 2009
I have a so called reliable resource who works in the T-mobile store, and so far he has been right about anything to do with G1. He predicted the OTA release, and that was right, but he has also said T- mobile will be releasing the cupcake to t-mobile customers in uk end of March. Of course all i/we can do is wait. if anyone has any information to back that claim it would be appreciated. I know there's loads of cupcake talk that has been going on for months. but i believe this is the real thing, else he wouldn't jeapordise these claims to get people to buy the G1 and then get hundreds of complaints if it didnt happen
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Sep 22, 2010
I'm getting this error ( in the end of this post) which I guess I understand it's because I'm calling something after releasing it.. but I can't find a wy to work it around.I've tried all combinations.. I've tried: mCamera.setPreviewCallback(null); This class, where the surfaceview is implemented can be accessed by 2 different classes one that doesnt implement surfaceview and other that does the error just shows me when I go from the activity that uses the camera to the activity that also uses camera.I don't know what else to do.
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Dec 16, 2009
It doesn't seems as if the the stop and release immediately terminates the audio played by the MODE_STREAM track. It looks like it finishes playing the rest of the buffer and then stops.
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Jul 10, 2009
I want to release a demo version of my app. I added a restriction that the app could only be used 5 times by storing a counter in the db. However a user can easily uninstall and install the demo again! What the best way to manage this?
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Sep 15, 2009
When I use wake lock to screen at the specific time on the device as follows code. But every time I release this wake lock, the screen will force to close. I think it must to release the wake lock, or screen will always on. It's wasting power. Does anyone knows how to release the screen wake lock and don't need to close the screen?
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Oct 28, 2010
Is there a way to change free app into paid app in Market? I.e. you release com.foo.xxx as free but later you'd like to charge for app and drop free version completely.. I do not see anything like this in Market console at the moment. I know I can release com.foo.xxx.pro for example but my intention would be to keep package name as is so current users would see there's upgrade available. Alternatively, if there's no way to do that can I completely remove app from market so com. would be reusable for other app?
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Mar 16, 2009
What percentage of users are going to have 1.1 upgrade? Don't want to be flooded by 1 star feedbacks!
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Jul 6, 2009
All I'm baffled as to how this Market works. I was expecting a different version of the Market by now but things still seem awry. Say I have two apps - one free, one paid. I release updates to both. The free one is at the top of the list, but the paid one is down in the depths of the list. That kind of sucks. Is this really how it works? Or is something temporarily broken.
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Sep 3, 2009
I'm trying to figure out a way to programmatically determine if my build was built in debug mode vs. release mode. I'd like to hide some items in my settings screen if it's release. When I build my app in Eclipse I'm building by default in Debug mode. However, when I build the app using the command line, I build it in release mode and sign the app using the jarsigner tool.
I've tried using:
PackageInfo appInfo = manager.getPackageInfo("com.adobe.psmobile", PackageManager.GET_SIGNATURES);
to test if
appInfo.signatures[0].toCharsString()
matches my debug signature and that didn't seem to work.
I'm now trying to see if I can introspect the app's KeyStore, to match the default debug alias described here:
http://developer.android.com/guide/publishing/app-signing.html of "androiddebugkey"
but I haven't figured out how to retrieve the app's KeyStore yet.
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Jul 3, 2009
I created an application which is displaying camera preview. When the application terminates I noticed that some processes are still running. Also if I try to run the original camera application it displays an error (obviously due to the active process which belongs to the custom application).
Does anyone know how to release all resources when application ends?
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Nov 24, 2010
I can't find a tutorial online that gives me the step by step process on how to generate a suitable key using the keytool in the JDK.
This: http://developer.android.com/guide/publishing/app-signing.html
Talks about it and gives commands, but it doesn't actually say where and in what folder to key in the commands. I am sure I am missing something easy here, but could anyone guide me to where I need to start with this?
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Jul 1, 2009
I created an application which uses camera and during the appplication execution the screen is always on.
In the onCreate() method I added the lock code...
But after the application termination the screen remains on all the time and if I run the camera application it encounters an error which obviously appears because the camera resources are not released.
Does anyone know how to release all resources on application termination?
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