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• How to create a draggable overlayItem in Android 2.1

  - by Zap

  Does anyone know how to make a map overlayitem draggable so I can press and hold it and drag it across the map. I am trying to duplicate the draggable icon behavior that's available on the iPhone. One developer suggested a possible solution is to detect a touch event, get rid of the existing overlay item, draw your own copy of the icon where the overlay item had been, manually animate that as the user drags, and then put the overlay item where the user drops it (getting rid of your manually-drawn icon). Does anyone have sample java code to do this Android 2.1? This would be much appreciated.

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• Android "gen" folder and SVN - bitter enemies.

  - by Benju

  It seems that I accidentally checked in my "gen" folder from an Android project (this folder contains the R.java generated class). When I realized I did this I deleted it from SVN and tried to ignore it. Now I am now getting the error... "Could not add gen to the ignore list! Working copy 'C:\code\guru' locked. When I try to run a cleanup command I get this... Cleanup failed to process the following paths: -C:\code\guru 'C:\code\guru\gen' is not a working copy directory. When I try to run a resolve I get this... Working copy 'C:\code\guru' locked Please execute the 'Cleanup' command. We are currently on SVN 1.6 on the server.

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• Detect car acceleration in Android app?

  - by Stud33

  I want to incorporate some Accelerometer code into a Android application im working and want to see if this is possible. Basically what I need is for the code to detect car acceleration motion. I am not wanting to determine speed with the code but just distinguish if the phone is in a car and has accelerated motion (Hence the car is moving for the first time). I have gone through many different accelerometer applications to see if this motion produces a viable profile to go off of and it appears it does. Just looking for something that popups a "Hello World" dialog when it detects your in the car and its moving for the first time down the street. Any help would be appreciated and a simple yes or no its possible would work. I would also be interested in compensating anyone that is capable of doing this as well. I need this done like yesterday so please let me know. Thank You, JTW

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• Android process killer

  - by Martin

  I have similar question, maybe you can help. Is it possible to get list of all process which are running in the Android system, and kill some of them? I know that there are some applications (task managers), but I would like to write my own, simple application. I would like to write simple task manager, just list of all process and button which will kill some of them. Could you just write some Java methods which I can call in order to get list of process, and method for killing them. Or just give me some advices. Thanks for answers. Regards Martin

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• Android - Camera functionality howto

  - by teepusink

  Hi, I'm using the example from the SDK (CameraPreview) and also the example from this site http://marakana.com/forums/android/android_examples/39.html When I run it, both gives this error "The application AppName(appname) has stopped unexpectedly. Please try again". I can't run the debugger either because it's always "Waiting for debugger. Force close". (I have debuggable=true in the manifest file) The phone I have is a Nexus One. Running on the emulator gives me the black and white squares with a moving square. (So I assume it works on the emulator?). Even on the emulator it gives me the "stopped unexpectedly" error 50% of the time. Does anyone know what caused it? Thanks, Tee

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• Speed up compilation with mockito on Android

  - by pbreault

  I am currently developing an android app in eclipse using: One project for the app One project for the tests (Instrumentation and Pojo tests) In the test project, I am importing the mockito library for standard POJO testing. However, when I import the library, the compilation time skyrockets from 1 second to about 30 seconds in eclipse. The cause seems to be that the whole library is converted each time. So basically, each time a make a modification that I want to test, I have to wait 30 seconds. The only workarounds that I have found so far would be: Disable "Build Automatically" Create a project that includes only pojo tests and put mockito only there. Use another library that compiles faster (e.g. easymock) Any other suggestion?

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• how to do loop for array which have different data for each array

  - by Suriani Salleh

  i have this file XML file.. I need to convert it form XMl to MYSQL. if it have only one array than i know how to do it.. now my question how to extract this two array Each array will have different value of data..for example for first array, pmIntervalTxEthMaxUtilization data : 0,74,0,0,48 and for second array pmIntervalRxPowerLevel data: -79,-68,-52 , pmIntervalTxPowerLevel data: 13,11,-55 . can some one help to guide how write php code to extract this xml file to MY SQL <mi> <mts>20130618020000</mts> <gp>900</gp> <mt>pmIntervalRxUndersizedFrames</mt> [ this is first array] <mt>pmIntervalRxUnicastFrames</mt> <mt>pmIntervalTxUnicastFrames</mt> <mt>pmIntervalRxEthMaxUtilization</mt> <mt>pmIntervalTxEthMaxUtilization</mt> <mv> <moid>port:1:3:23-24</moid> <sf>FALSE</sf> <r>0</r> [the data for 1st array i want to insert in DB] <r>0</r> <r>0</r> <r>5</r> <r>0</r> </mv> </mi> <mi> <mts>20130618020000</mts> <gp>900</gp> <mt>pmIntervalRxSES</mt> [this is second array] <mt>pmIntervalRxPowerLevel</mt> <mt>pmIntervalTxPowerLevel</mt> <mv> <moid>client:1:3:23-24</moid> <sf>FALSE</sf> <r>0</r> [the data for 2nd array i want to insert in DB] <r>-79</r> <r>13</r> </mv> </mi> this is the code for one array that i write..i dont know how to write code for two array because the field appear two times and have different data value for each array // Loop through the specified xpath foreach($xml->mi->mv as $subchild) { $port_no = $subchild->moid; $rx_ses = $subchild->r[0]; $rx_es = $subchild->r[1]; $tx_power = $subchild->r[10]; // dump into database; ........................... i have do a little research on it this is the out come... $i = 0; while( $i < 5) { // Loop through the specified xpath foreach($xml->md->mi->mv as $subchild) { $port_no = $subchild->moid; $rx_uni = $subchild->r[10]; $tx_uni = $subchild->r[11]; $rx_eth = $subchild->r[16]; $tx_eth = $subchild->r[17]; // dump into database; .............................. $i++; if( $i == 5 )break; } } // Loop through the specified xpath foreach($xml->mi->mv as $subchild) { $port_no = $subchild->moid; $rx_ses = $subchild->r[0]; $rx_es = $subchild->r[1]; $tx_power = $subchild->r[10]; // dump into database; .......................

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• Live Character Count For EditText Android

  - by Taylor Perkins

  Hello, I was wondering what the best way to do a live character count of an edit-text box is in Android. I was looking at this but I couldn't seem to make any sense of it. To describe the problem, I have an EditText and I'm trying to limit the characters to 150. I can do this with an input filter, however I want to show right below the text box the number of characters a user has entered(Almost like stack overflow is doing right now). If someone could write a small snippet of example code or point me in the right direction I'd appreciate it a lot. Thanks in advance.

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• Interrupt an Http Request blocked in read() on Android

  - by twk

  Using the Apache Http stack on Android, I'm trying to force a thread out of a call to read. This is what the stack looks like: OSNetworkSystem.receiveStreamImpl(FileDescriptor, byte[], int, int, int) line: not available [native method] OSNetworkSystem.receiveStream(FileDescriptor, byte[], int, int, int) line: 478 PlainSocketImpl.read(byte[], int, int) line: 565 SocketInputStream.read(byte[], int, int) line: 87 SocketInputBuffer(AbstractSessionInputBuffer).fillBuffer() line: 103 SocketInputBuffer(AbstractSessionInputBuffer).read(byte[], int, int) line: 134 IdentityInputStream.read(byte[], int, int) line: 86 EofSensorInputStream.read(byte[], int, int) line: 159 Fetcher.readStream() line: 89 I've tried InputStream.close(), Thread.Interrupt(), and HttpUriRequest.abort(), without any success. Any ideas? I'm also open to some kind of non-blocking IO, but I don't see any way to do that with the HttpUriRequest object. Thanks!

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• Android - Service and Activity interaction

  - by Chris

  I want to create an app that contains a Service S and an Activity A. The Service S is responsible for preprocessing, such as preparing the data shown on the UI of the Activity A, before the Activity A gets invoked. I want to be able to invoke the Service S from outside the package, say from another Android app's Activity class B, do the preprocessing, and then when the data is ready, invoke Activity A. My questions are: What is the best way to share data between the Service S and Activity A? How can the external activity B communicate with the Service S to determine if it has completed with all its preprocessing, and the Activity A is ready to be invoked? Thanks Chris

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• android call log like design

  - by Alxandr

  I'm trying to create a design for a list that looks like (and mostly behaves like) the call log, like shown here: I don't need all the design, but what I'm trying to achieve is the two-columned design with the splitter in-between, and the behavior that if I click on the main item (the left part) one thing happens (in this case, you open some details about the call), and if you press the outer right part something else happens (you call the contact). I'm pretty new to android, but I've managed to do most of the designs I wanted so far, so I don't need the entire layout for this one, only the part that does the splitting and the splitter. And if possible it would be nice to know how to map the clicks appropriately, though I think I might be able to find that out by my self.

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• Android VideoView resume and seekTo

  - by Chris

  I am playing a Video using a VideoView in my app. On the click of a button, it records the current position of the video, and the app opens up the browser with some url. On pressing the back button, the app comes back to video app and resumes the video from where it left off. I looked at the Android Activity lifecycle and saw that onStart() method gets called once the video activity comes to the foreground. So I am creating my layout in onStart() and playing the video by seeking to the current position. My problem is that when the video resumes, it buffers from the start and then seeks to. Since it already buffered the first time, is there a way to eliminate buffering again while doing a seekTo? Thanks Chris

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• Android FileOutputStream

  - by zaid

  i am attempting to save an image file using "openFileOutput" and then adding that file to my intent with EXTRA_STREAM. but logcat keeps saying that file size is 0, i have the proper permission in my manifest. FileOutputStream fos = openFileOutput("p001.jpg", Context.MODE_WORLD_READABLE); File jpg = getFileStreamPath("p001.jpg"); fos.close(); Intent share = new Intent(android.content.Intent.ACTION_SEND); share.setType("image/jpeg"); share.putExtra(Intent.EXTRA_SUBJECT, "Fail picture"); share.putExtra(Intent.EXTRA_TEXT, "Epic fail!!!"); share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(jpg)); startActivity(Intent.createChooser(share, "Choose share method."));

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• Creating Service with Bluetooth activation in Android

  - by Mr. Kakakuwa Bird

  Hi I want to create a service in Android which will initially ask user if they want to start Bluetooth and set the Bluetooth discovery. My question is 1) Can I launch in the service following activities? if (!mBluetoothAdapter.isEnabled()) { Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, 0); } // Set Phone Discoverable for 300 seconds. Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 600); startActivity(discoverableIntent); 2) I want to set discoverabilty of the phone on for lifetime of application. Is it possible? 3) I want to access empty space available on SD card. How should i do it? Thanks in advance.

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• Android/Java Beginner: Overriding ArrayAdapter's getView

  - by Preformed Cone

  Firstly I am new to android and Java so this is a beginners question. I have some code that overrides the ArrayAdapter's getView method. Here is the code public View getView(int position, View convertView, ViewGroup parent) { TextView label = (TextView)convertView; if (convertView == null) { convertView = new TextView(ctxt); label = (TextView)convertView; } label.setText(items[position]); return (convertView); } My question is: why does label.setText(items[position]); affect the convertView return value? How are they related / linked?

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• Android AlertDialog with dynamically changing text on every request

  - by Ulrich Scheller

  I want to show an AlertDialog with one option that might change on every request. So for example at one time I want to show the option "add to contacts" while another time it should be "remove from contacts". My code does work on the first time, however Android seems to cache the AlertDialog so that onCreateDialog is not executed next time. Therefore the option doesnt change anymore. Can I prevent this caching, or is there just another way of changing the option? I am working with SDK 1.5 but using 1.1. @Override protected Dialog onCreateDialog(final int id) { ... String add_remove_contact = res.getString(R.string.profile_add_to_contacts); if (user.getContacts().contains(profileID)) { add_remove_contact = res.getString(R.string.profile_remove_from_contacts); // TODO: this string is not changed when contact status changes } final CharSequence[] items = {res.getString(R.string.view_profile), res.getString(R.string.profile_send_message), add_remove_contact}; AlertDialog.Builder builder = new AlertDialog.Builder(this); ... return builder.create(); }

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• Android: Hiding the keyboard in an overrided "Done" keypress of EditText

  - by Marshall Ward

  Hello, I have used a bit of Android code to override the "Done" button in my EditText field: myEditField.setOnEditorActionListener(new TextView.OnEditorActionListener() { @Override public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { if (actionId == EditorInfo.IME_ACTION_DONE) { mySubroutine(); return true; } return false; } }); Activating the field calls up the keyboard, and pressing "Done" evaluates mySubroutine() successfully. However, the keyboard no longer goes away when I press "Done". How do I restore this default behaviour to the routine?

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• Import Contacts from .vcf file in Android 2.1

  - by Prateek Jain

  Hi All, I am able to retrieve all contacts from android in .vcf file using following code. ContentResolver cr = getContentResolver(); Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null); String lookupKey = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY)); Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey); System.out.println("The value is " + cr.getType(uri)); AssetFileDescriptor fd = this.getContentResolver().openAssetFileDescriptor(uri, "r"); FileInputStream fis = fd.createInputStream(); I don't know how to use this .vcf file to import all these contacts using code. The .vcf file contains all the details of all contacts including photos etc. Cheers, Prateek

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• Android serialization: ImageView

  - by embo

  I have a simple class: public class Ball2 extends ImageView implements Serializable { public Ball2(Context context) { super(context); } } Serialization ok: private void saveState() throws IOException { ObjectOutputStream oos = new ObjectOutputStream(openFileOutput("data", MODE_PRIVATE)); try { Ball2 data = new Ball2(Game2.this); oos.writeObject(data); oos.flush(); } catch (Exception e) { Log.e("write error", e.getMessage(), e); } finally { oos.close(); } } But deserealization private void loadState() throws IOException { ObjectInputStream ois = new ObjectInputStream(openFileInput("data")); try { Ball2 data = (Ball2) ois.readObject(); } catch (Exception e) { Log.e("read error", e.getMessage(), e); } finally { ois.close(); } } fail with error: 03-24 21:52:43.305: ERROR/read error(1948): java.io.InvalidClassException: android.widget.ImageView; IllegalAccessException How deserialize object correctly?

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• Trouble getting Android emulator to run in eclipse

  - by Sharonix

  Hi there, I'm new to Android and Eclipse. I'm Trying to run the SDK Samples on the Emulator in Eclipse 3.5 Most of the time the AVD Manager hangs when I try to create a new AVD. When I manage to create an AVD and try to start the emulator I get this: emulator: ERROR: no search paths found in this AVD's configuration weird, the AVD's config.ini file is malformed. Try re-creating it. I'm running the latest version of the SDK on Win7 32 bit. Any Ideas?

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• Android - Notification bar height from a service

  - by Vitaliy

  Hi, The application I'm working on is a service which runs in the background in android. The problem is that I need to determine the height of the notification bar for some functionality of the service. I found a number of solutions for this, for regular activities - a view inside an activity can determine its own height without the notification bar, based on checking its actual view size from its onSizeChanged event, after it is already drawn. However, this is not applicable to a service which has no physical view drawn. I would really appreciate any ideas on getting the size of the notification bar at a system level, perhaps? Thanks so much! Vitaliy

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• Android MediaPlayer crashing app

  - by user1555863

  I have an android app with a button that plays a sound. the code for playing the sound: if (mp != null) { mp.release(); } mp = MediaPlayer.create(this, R.raw.match); mp.start(); mp is a field in the activity: public class Game extends Activity implements OnClickListener { /** Called when the activity is first created. */ //variables: MediaPlayer mp; //... The app runs ok, but after clicking the button about 200 times on the emulator, app crashed and gave me this error https://dl.dropbox.com/u/5488790/error.txt (couldn't figure how to post it here so it will appear decently) i am assuming this is because the MediaPlayer object is consuming up too much memory, but isn't mp.release() supposed to take care of this? What am i doing wrong here?

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• How do I take advantage of Android's "Clear Cache" button

  - by Jay Askren

  In Android's settings, in the "Manage Applications" activity when clicking on an app, the data is broken down into Application, Data, and cache. There is also a button to clear the cache. My app caches audio files and I would like the user to be able to clear the cache using this button. How do I store them so they get lumped in with the cache and the user can clear them? I've tried storing files using both of the following techniques: newFile = File.createTempFile("mcb", ".mp3", context.getCacheDir()); newFile = new File(context.getCacheDir(), "mcb.mp3"); newFile.createNewFile(); In both cases, these files are listed as Data and not Cache.

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• Android Image Getter for Larger Images

  - by y ramesh rao

  I have used all the Standard Network related code for Getting Images of about 45KB to 75KB but all are failing these methods work fine for Files of about 3-5KB size of Images. How can I achieve Downloading Image of 45 - 75KB for displaying them on an ImageView in Android for my Netowrk Operations the Things I have used are final URL url = new URL(urlString); final URLConnection conn = url.openConnection(); HttpURLConnection httpConn = (HttpURLConnection) conn; httpConn.setAllowUserInteraction(true); httpConn.setInstanceFollowRedirects(true); httpConn.setRequestMethod("GET"); httpConn.connect(); and the Second option that I have had used is:: DefaultHttpClient httpClient = new DefaultHttpClient(); HttpGet getRequest = new HttpGet(urlString); HttpResponse response = httpClient.execute(getRequest); why is this code functional for Smaller Sized Images and not for Larger Size Images. ?

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• Android: Where to find the RadioButton Drawable?

  - by Peterdk

  Ok, I am trying to create a custom view called CheckedRelativeLayout. It's purpose is the same as a CheckedTextView, to be able to use it in a list of items you want selected or in a Spinner. It's all working fine now, I extended RelativeLayout and implemented Checkable interface. However, I am stuck on a quite simple problem: Where can I find the Drawable that CheckedTextView and RadioButton use? I looked at the sourcecode of both, and they seem to use com.android.internal.R. Well... that's internal stuff. So I can't access it. Any way to get these Drawables or solve the problem somehow?

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