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• Is Android IPC plumbing exposed in any official and/or supported way?

  - by mathrick

  I'm interested in knowing how much the IPC mechanisms are meant to be exposed to the outside world. That is, if I wanted to impersonate a dalvik VM instance without having my app actually written in Java, am I allowed to do so, or will the protocol change the next time I look away from the screen? If it's allowed, what are the stability guarantees or lack thereof? Is there anything like documentation, or am I supposed just to read the fine sources on android.git.kernel.org? The purpose of it all would be to write apps in !Java languages while retaining the ability to construct GUIs. I don't care or mind if the code is technically inside a dalvik process as a JNI callout, what I'm interested in is "if I'm really good at pretending I'm Java over the wire, can I do everything actual Java code can? Or is there something that's only available as Java bytecode and nothing else?"

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• [as3] air for android - stage.setOrientation deprecated in AIR 2.5 so how do I do it now?

  - by jason

  as3 air for android using flash CS5 my problem: testing an AIR app on my droid 2 global (with slide out keyboard) using stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGE, handleOrientationChange); this is only fired when the i slide the keyboard out and not when I rotate the phone. I have tried this with the auto orientation on and off and with the aspect to portrait and landscape. actually the auto orientation option does not seem to make a difference on or off. I need the orientation to change when i rotate the phone. I know i can use the accelerometer to do this but the problem with that is when I click on a textField with the keyboard closed only the vertical keyboard pops up and i need the other one to pop up when holding the phone sideways.

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• How to get maximum/largest value from json object with Android?

  - by blankon91

  I've json string like this: {"GetReportResult":[ {"bulan":"4","total":"2448","type":"CHEESE1K","uang":"8847823"},{"bulan":"4","total":"572476","type":"ESL","uang":"5863408410"},{"bulan":"4","total":"46008","type":"ESL500ML","uang":"234498301"},{"bulan":"4","total":"228985","type":"UHT","uang":"1367172990"},{"bulan":"4","total":"40995","type":"WHP","uang":"235750452"},{"bulan":"5","total":"5703","type":"CHEESE1K","uang":"134929306"},{"bulan":"5","total":"648663","type":"ESL","uang":"6645764498"},{"bulan":"5","total":"49305","type":"ESL500ML","uang":"266817346"},{"bulan":"5","total":"287867","type":"UHT","uang":"1446897805"},{"bulan":"5","total":"51958","type":"WHP","uang":"631994613"},{"bulan":"6","total":"4390","type":"CHEESE1K","uang":"104527773"},{"bulan":"6","total":"443335","type":"ESL","uang":"4540123082"},{"bulan":"6","total":"28462","type":"ESL500ML","uang":"148290912"},{"bulan":"6","total":"213250","type":"UHT","uang":"1197646870"},{"bulan":"6","total":"27049","type":"WHP","uang":"189802525"} ]} I want to get maximum/largest value of bulan, which is 6. How to do that on android?

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• Is there a ways to make google store coordinates in the android map?

  - by Pavel

  Hi. I'm in the middle of developing android app using google map. My question is - how to store coordinates with google map and display them later on? I know how to use canvas, how to draw it etc. but I want to store those coordinates with google map - just like with the google maps feature on internet. When I log in I can see points I've put on the map straight away. Can someone please tell me how to do that? There must be a way. Any answers greatly appreciated!

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• Why does the app signature change in Android after a classpath change?

  - by espinchi

  I have an Android project that branched into three different applications, app-1, app-2 and app-3, that apply some customizations. Currently there is a lot of code duplication, making maintenance a nightmare: do the changes in one of the branches, and then merge the other two. So we create a library project, named app-core, that factors out most of the duplicated code. So far so good. When I launch this into an emulator where the application was already loaded (before the refactoring), I get this exception: Re-installation failed due to different application signatures A different signature? But I just added a line in the .classpath to link to the app-core Java project! The main question is: are the existing users going to be bothered by this too? And the side question: Why is it a different signature?

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• Is it possible to launch an Android Activity from an AlertDialog?

  - by YYY

  I am trying to create a small pop-up in my Android application to let the user choose from one of many items, ala a ListView. I am hoping to make it show up as a translucent box that overlays on the screen, as opposed to completely occupying it like Activities usually do. One technique for doing this that I've heard is possible is to launch an Activity in an AlertDialog box. This would be perfect - it's the ideal size and has a lot of the mechanical properties I'm looking for, but I'm totally unable to find any more specifics of this technique. Is this possible? And if not, what is the preferred way of accomplishing something like this?

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• Offline navigation software for Android - what is out there?

  - by Ted

  Im looking for navigation software for the Android platform and I have a few requirements: Offline maps. The maps should be stored on the device/memory card so no Internet-connection is required There should be some way to interact with the application "through code"; sending route requests, getting current location perhaps, bringing app to foreground/background, etc. An API so it can be controlled from another application. No monthly fees The only one I found so far to match the above is Sygic Navigation. However, I havent yet been able to communication with the app even though they say that it can be done. Still investigating that...

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• Android/ iOS how to determine small changes in distance using sensors?

  - by Tom

  I have been doing a bit of research, but I cannot seem to find a way to determine small distances (centimeters and meters) using the sensors in Android or iOS devices. Bluetooth appears too inaccurate and require more than one device, GPS only works over larger variations in distance, and small variations in rotation seem to make using the accelerometer nearly impossible. Is there a method that I am unaware of that would allow me to do such a thing? I am familiar with Calculus, so using Integrals to determine distance based on changes in time and velocity/ acceleration is not a problem for me, I just do not know how to determine those things. Thank you.

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• How do I display each view once as they are loaded, in Android?

  - by Joe Masilotti

  I have an Android application that works off of a smaller database, around 300 entries. To view the database, I have created a custom view that contains individual rows of data. Then I query the database, and add each line to a newly created custom view. The problem is that it takes a little white for all of this to be created/loaded, so when you open the application, it sits for a few seconds. How can I load one line of data, then display it, then the next, append it, etc.?

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• how to add multiple markers to mapview in android?

  - by Vishakha Kinjawadekar

  I am working on android geolocation application in that I have added marker for current location and want to add markers for other geopoints also. I have created objects of OverlayItem for other points and adding it to ItemizedOverlay like itemizedOverlay.addOverlay(overlayItem) and then adding it to mapOverlay.add(itemizedOverlay). For the current location geopoints getting from "Location" object and other points are hard-coded values. After executing it only current location marker is displayed not the other hardcoded points.How can I add marker for these geopoints and where? Thanks , Vishakha.

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• Capture Video in iPhone

  - by Timmi

  Hi, I used the following code to record video. UIImagePickerController *m_objpicker;=[[UIImagePickerController alloc] init]; m_objpicker.sourceType = UIImagePickerControllerSourceTypeCamera; m_objpicker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie]; // hide the camera controls //picker.showsCameraControls=NO; m_objpicker.delegate = self; //picker.allowsImageEditing = NO; m_objpicker.allowsEditing=NO; // and put our overlay view in //picker.cameraOverlayView=m_objOverlayView; [self presentModalViewController:m_objpicker animated:YES]; When we finish recording (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{ NSURL *m_objMediaURL=[info objectForKey:UIImagePickerControllerMediaURL]; [m_objpicker dismissModalViewControllerAnimated:YES]; } My doubt is, how to save the captured video to a location we specify. Also how to use UISaveVideoAtPathToSavedPhotosAlbum . What all things i need to change in my code so that i can save video to a specified location Thanks,

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• Is there a way to arbitrarily load Resources at runtime in Android?

  - by Omega

  I've got some XML resources in my Android app. Each one has a different name like "bicycle.xml" and "car.xml". I'd like to know if there's a way to load resources based on conditions during run time. As an example... Say I had a text input in my app. When the user enters "bicycle", my app can look up an XML resource by that name, parse and load it. Whereas if they enter "car", they would end up with the data from the other XML file. I've noticed so far that to load resources, you have to use the autogenerated "R" class, which restricts you to hard-coding resources at compile time.

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• how to increase the storage space in Android emulator? (Installation error: INSTALL_FAILED_INSUFFICI

  - by newgeek

  Hi, I am creating an Android application. My Application has audio and png files which i have saved in res/drawable folder. When i run the app , its giving error Installation error: INSTALL_FAILED_INSUFFICIENT_STORAGE and in the logcat it says - ERROR/PackageManager(54): Couldn't copy package file to temp file. I tried creating new avd also.But i am getting the same error. I want all those png and audio files. I dont want to store them in sdcard. Please Suggest me how to solve this problem. Thanks in Advance

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• Need guidance for my first Android application: how many activities should I use?

  - by jul

  Hi, I'm starting Android doing an application for searching restaurants, and some guidance would be welcome! On the first screen I'd like to have a search field with a submit button (I get the data from a web service), and below a list with the results of the search. When clicking on one of the items of the list it will show a screen with the restaurant details as well as a map showing its location. My questions are: Can I do everything in one single activity or should I do an activity for the search, one for the result list, one for the restaurant description, and another for the map? Would doing one single activity make the application more responsive? How can I use a list and a map within a normal activity (without ListActivity and MapActivity)? Any help, pointer, example application or sample code is very appreciated! Thank you Jul

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• How to organize database access code in Android project?

  - by Mladen Jablanovic

  I have created a ContentProvider for my main Sqlite table, pretty much following NotePad example from SDK (although I am not sure whether I will ever be exposing my data to other apps). However, I need to create lots of other, non-trivial queries on that and other tables and views. A good example would be queries to extract some statistics from the base data, averages, totals etc. So what's the best place for this code in an Android project? How it should be related and connected to the Uri-based data access exposed by a Provider? Any good examples out there?

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• How to send Message to all registered users with android gcm?

  - by FlyBy

  I am using android gcm to make push notifications for my users. Everything is working so fine. To send a notification I need the users registration id to identify him. It works. Now my problem is that I have some hundreds of users and I would like to inform them ALL about certain updates. Is there a way to send a notification to all users? Do I really have to push them all by their registration ids? On the server side I am using PHP and CURL as it is shown in many examples around here...

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• Android - How can I access a View object instantiated in onCreate in onResume?

  - by Chris

  In my onCreate() method, I'm instantiating an ImageButton View: public void onCreate(Bundle savedInstanceState) { Log.d(AntengoApplication.LOG_TAG, "BrowsePicture onCreate"); super.onCreate(savedInstanceState); setContentView(R.layout.layout_post); final ImageButton ib = (ImageButton) findViewById(R.id.post_image); ... In onResume, I want to be able to change the properties of the ImageButton with something like: @Override protected void onResume() { super.onResume(); ib.setImageURI(selectedImageUri); } //END onResume But onResume doesn't have access to the ib ImageButton object. If this were a variable, I'd simple make it a class variable, but Android does not allow you to define View object in the class. Any suggestions on how to do this?

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• Can I have an android activity run only on the first time an application is opened?

  - by The Trav

  OK, so I'm playing around with an android app. The 90% use case is that users want to go straight to the primary list screen to find what they're looking for. That's what I want as my default screen. The first time a user loads the app however, some configuration is required before their list screen is of any value to them. So my question, is how I can go about displaying the configuration activity the first time the app is opened up, and then the list screen for future openings. I also want to put a demo button on the configuration screen, so I suppose more than just detecting that it's the first time, I specifically want to detect whether the user has performed certain configurations within the first screen.

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• How to create your own advert engine for an Android App?

  - by Richard Green

  I have an Android App and I would like to start putting non-intrusive advert into the app. However, I have the benefit of knowing exactly what products I would like to put in these adverts (which will basically be amazon "similar products" type things and a few other suppliers). Is there any ad-engine out there that will allow me to do this? The ones I see already just put what they think are suitable. I have scoured and I can't find an example of this... Any ideas? Should I just bite the bullet and write my own classes to do this ?

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• Modify game using external file

  - by Veehmot

  In Flash, for example, I can place an xml file along with the binary, then if I modify some variable the game will change for everyone. How to achieve something like that in Android? I know that for every change I make to the game, the player would need to download a new update. But the main goal I'm looking for, is modifying a game stats without the need for recompile the entire APK. I'm working with Haxe+OpenFL.

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• How to manage my model

  - by Christophe Debove

  I have in my model, a list of Classes : Player, NonPlayerCharacter, Monster, Item, NonMovableItem etc With AndEngine I've a list of sprite for each piece of my model, How can I manage the relashionship between my model's classes and the graphical elements, what is the degree of abstaction recommended for my problem? One sprite for one Model or one Model for one Sprite or n for n for exemple If I do drag&drop have I to make abstraction of the Sprite Class, another exemple a map is a List of sprite or a list of element of my model?

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• How do I save files with libgdx so that users can't read them?

  - by Rudy_TM

  Writing my game in libgdx, I arrived at the point when I need to save the player stats and the info of the levels. However, in libgdx it's not allowed to write the file inside folder of the application, only external (on the SD) is allowed. The point is that I don't want the file to be seen by anyone, or if they can see it, how can I convert it to a binary file so it's not human readable? I just want to hide the file.

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• Saving files with libgdx

  - by Rudy_TM

  Writing my game in libgdx, i arrived at the point when i need to save the player stats and the info of the levels, but in libgdx its not allowed to write the file inside folder of the application, only external (in the sd) is allowed, well, the point is that i want that my new file cat be seen by anyone, or if they see it how can i pass it to a binary file, so no one can see it. I just want to hide the file :P

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• "Dictionary problem." Error with VMPlayer

  - by George Mauer

  I'm pretty new to using vmware virtualization (been a virtualbox user) so I'm hoping you guys can help me out. I recently got an external usb disk containing a vm for a client, downloaded vmplayer, set it up with "Open a Virtual Machine", ran it, easy as pie. After working with it a bit this morning, I shut the VM down and now trying to start it back up again I get this: I tried removing the vm from my library, now it happens whenever I try to add it back in. In the meantime, I can still access other virtual machines so it seems like the problem might be with the virtual disk. So two questions: This is obviously not a very helpful error message. Where can I go to get more information? My Application EventLog doesn't contain anything from VMWare. What steps can I take to fix the problem? Edit: A couple more pieces of information. I did not take any snapshots. I don't think VM Player even has that ability. I have a zip file of (what I assume) is the state of the VM when it was sent to me. I cannot unzip it as it is huge and simply requires more HD space than I have available but I did extract the vmx file and examine it. Other than the UUIDs and the fact that mine reads cleanShutdown = "FALSE" they are identical. The log contains the following lines Jun 23 10:11:18.080: vmx| SNAPSHOT: SnapshotConfigInfoRead: Unable to load dict from 'E:....\MachineName.vmsd'. Jun 23 10:11:18.080: vmx| SNAPSHOT: SnapshotConfigInfoRead failed for file 'E:....\MachineName.vmx': Dictionary problem (6) Jun 23 10:11:18.082: vmx| SNAPSHOT: Snapshot_TimeStampTiers failed: Dictionary problem (6)

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• Convert DVD Movie to MPEG and view on PS3 via Windows Media Server 12

  - by Vidar

  I think Apollo spacecraft missions to the moon were easier than this! I have tried dozens of DVD ripping software and media servers and have had limited success in trying to convert all my DVDs into file format so they can be viewed on PS3. I have also been on dozens of forums and it's all getting a bit confusing, some advice is out of date, some software is no longer updated - updates have been applied to PS3 operating system and windows and so on and so on. There has to be a way to get all this knowledge and information in one place that's up to date so people can do the same thing as me. Can anyone give me some definitive software and/or advice to do the following: I have over 200 DVDs - I want to convert these to VOB files (rename to MPEG so WMS can stream them). Store on hard disk and view via Windows Media Server 12 (Windows 7). I will then be able to view these via my PS3 in my lounge and never have to get out another DVD case again. I don't want to encode to any other format like MP4 with H.264 because I will lose some of the original quality. So MPEG-2 is fine for me. Note: I have been using DVD Shrink but it gives odd results sometimes. The main problem being that once the DVD has been ripped - WMS shows the wrong playing length of the film, however if I use VLC Media Player it will play through the whole film OK. This is obviously no good when it comes to streaming on the PS3.

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