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  • How do I implement a score database in Android?

    - by Michael Seun Araromi
    I making a 2D game for Android using OpenGL-ES technology. It is a space shooting game where the player shoots enemy ships. I want to keep a track of score for the amount of enemy ships destroyed and a record of a local highscore. The score should be incremented whenever an enemy is destroyed. I also want a way of displaying both the current score and highscore on the game screen. I am not familiar with databases at all and I will appreciate a clear answer or a link to a good tutorial for my cause. Thanks.

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  • How do you get the total asset size (or total resource size) in an Android game?

    - by tom_mai78101
    In an Android Java project, there are two folders, asset and res. To me, I usually put some stuffs, like PNG files, sound files, etc. in either one of the two folder. When resources are increasingly becoming more and more in those folders, the time it takes to load them will increase. Therefore, a loading screen is a must in these situation. The total size is to be used in a loading screen, so that I can guess the average time it takes to load each resources, from 0 bytes to its individual resource file size. I only know that by adding all individual sizes in a respective order, I will then obtain the total asset or res folder size, simply by adding them up. So, when it comes to getting the total file size from either folder, how do you obtain their individual resource/object sizes, respectively? Thanks in advance.

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  • What platform is best for Android and iPhone development?

    - by Toy Yoda
    I've been developing non-mobile apps for linux; mainly stuff like interpreters, compilers, database engines and business apps. I've been told that if I wanted to learn how to develop iPhone/iPad applications, I should buy a Mac since Apple has all it's development tools for iPhone/iPad on Mac. Now, what about Android phones / tablets? Are the development tools better on Mac or PC? I need to buy a new laptop, and I would like to factor in mobile development in my choice of PC or Mac.

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  • Why wont the LibGDX's main class Initialize on Android Launcher?

    - by BluFire
    So I was searching for different ways that could suit me in programming and came across LibGDX. Naturally I looked at the tutorial. As I was doing it, I was following the steps word for word, except naming the classes. In the end, I was able to create the desktop launcher for the game but not the android launcher. The following error is my error: Cannot instantiate the type Game (Game is the name of the class) I got the tutorial from http://steigert.blogspot.com.au/2012/02/1-libgdx-tutorial-introduction.html The link in the tutorial is the original but it uses jogl instead of lwjgl.

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  • How to create a Raining Effect(Particles) on Android?

    - by user19495
    I am developing a 2d android strategy game, it runs on SurfaceView, so I can't(or can I?) use LibGdx's particle system. And I would like to make a raining effect, I am aiming for something like this( http://ridingwiththeriver.files.wordpress.com/2010/09/rain-fall-animation.gif ), I don't need the splash effect in the end (although that would be superb, but probably would take up a lot of system resources). How could I achieve that raining effect? Any ideas? Thank You a lot in advance!

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  • Which way to make money on Android? ads, purchase, trial version?

    - by otakun85
    Hi, I want to release an app, but what is in your experience the best way to make money on android? I've seen some solutions out there, but which one is the best? Solution A: App is free and has ads. + long term income + free for customer ~ money based on usage - ads makes apps ugly - needs a internet connection, which your app may not need Solution B: App is purchased + instant income ~ money only once ~ the customer have only 15 minutes to try out the app - you need a credit card on the google market - the customer have to give money :D Solution C: Trial version Solution D: free Lite version with ads & full to pay version without adds Any other ideas?

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  • Why is FTP file transfer from Android Phone Slow?

    - by Frychiko
    To transfer files from my Android phone to Ubuntu, I use an app that creates a FTP server on the phone. Copying files to Ubuntu 12.04 (same with 12.10) I get up to 260 KB/s. Copying files to Windows 7 I get up to 1050 KB/s. I am currently on a fresh install of 12.10 with barely anything installed with the same results. I have tested with both a Galaxy S3 and HTC Desire HD with identical results. I have tested about 5 apps with the same results. Why is it slow on Ubuntu?

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  • Would it be possible to make an android app like this?

    - by ThisBetterWork
    I'm fairly new to android development and I'm not sure if the functionality I have in mind for my next project is actually feasible. I wanted to make a simple study guide app...when a user is browsing the web on their phone and they come across information they want to save to their study guide they would be able to highlight the sentence,long-click the highlighted text, and see an option to add it to their study guide(a pop-up list would appear). there would be more functionality than just this, for instance with-in the app you could create different study guide topics (biology,math, English..ect). But in general is it possible to have an app that is accessible by long-clicking when your browsing the web (as opposed to opening the App manually in order to use it.) -- If not, could I make it so you can open a browser within the app to do what I've described? This is going to be a school project so I don't care if it's totally original, I just want to make something simple and practical for practice. -- Thanks in advanced to anyone who helps!! :D

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  • AlerDialog is not created - java.lang.IllegalArgumentException: Activity#onCreateDialog did not crea

    - by Jayomat
    Hi, I want to create a normal AlertDialog. I used the example provided by the android dev docs. I just changed the DIALOG_PAUSED_ID to DIALOG_DELETEDB. If I execute my code and press the button which in return should create the dialog, I get the following error log: 04-29 01:01:20.973: WARN/dalvikvm(1168): threadid=3: thread exiting with uncaught exception (group=0x4001b188) 04-29 01:01:20.973: ERROR/AndroidRuntime(1168): Uncaught handler: thread main exiting due to uncaught exception 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): java.lang.IllegalArgumentException: Activity#onCreateDialog did not create a dialog for id 4 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.app.Activity.createDialog(Activity.java:871) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.app.Activity.showDialog(Activity.java:2483) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at mjb.project.AVV.Favs.onMenuItemSelected(Favs.java:111) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:730) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:139) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:855) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.view.menu.IconMenuView.invokeItem(IconMenuView.java:525) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.view.menu.IconMenuItemView.performClick(IconMenuItemView.java:122) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.view.View.onTouchEvent(View.java:4179) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.widget.TextView.onTouchEvent(TextView.java:6540) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.view.View.dispatchTouchEvent(View.java:3709) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.view.ViewRoot.handleMessage(ViewRoot.java:1691) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.os.Handler.dispatchMessage(Handler.java:99) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.os.Looper.loop(Looper.java:123) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at android.app.ActivityThread.main(ActivityThread.java:4363) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at java.lang.reflect.Method.invokeNative(Native Method) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at java.lang.reflect.Method.invoke(Method.java:521) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 04-29 01:01:20.993: ERROR/AndroidRuntime(1168): at dalvik.system.NativeStart.main(Native Method) so here are the "relevant" code parts: define the ID: private static final int DELETE_DB_ID = 3; private Dialog dialog; static final int DIALOG_DELETEDB = 4; onCreateDialog(...): protected Dialog onCreateDialog(int id) { switch(id) { case DIALOG_DELETEDB: // do the work to define the pause Dialog AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("Are you sure you want to exit?") .setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { Favs.this.finish(); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show(); break; default: dialog = null; } return dialog; } Here I try to "create" the dialog: @Override public boolean onMenuItemSelected(int featureId, MenuItem item) { switch(item.getItemId()) { case ADD_ID: createNote(); return true; case DELETE_DB_ID: showDialog(DIALOG_DELETEDB); return true; } return super.onMenuItemSelected(featureId, item); } As I already said, I just copied the code and changed the name. Unfortunately, I don't understand the error log message.. :/ Somehow I think I don't return the created dialog, but I cannot see "where" my reference is or where/what I have to return... thanks in advance for help.

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  • Someone please help google create instuctions that windows users understand. googles "instructions"

    - by nathan
    Below are the only instructions i managed to find from google on how to install the android NDK, it is written as if we all run Linux and presumes we all understand what these obscure tools are. My comments and questions appear in Italics if somone who knows unix and windows would translate for google that would be great! Android NDK Installation Introduction: Please read docs/OVERVIEW.TXT to understand what the Android NDK is and is not. This file gives instructions on how to properly setup your NDK. I. Requirements: The Android NDK currently requires a Linux, OS X or Windows host operating system. Windows users will need to install Cygwin (http://www.cygwin.com) to use it. Note that running the NDK under MSys is not supported. You will need to have the Android SDK and its dependencies installed. The NDK cannot generate final application packages (.apk files), only the shared library files that can go into them. IMPORTANT: The Android NDK can only be used to target system images using the Cupcake (1.5) or later releases of the platform. This is due to subtle toolchain and ABI related changed that make it incompatible with 1.0 and 1.1 system images. The NDK requires GNU Make 3.81 or later being available on your development system. Earlier versions of GNU Make might work but have not been tested. You can check this by running 'make -v' from the command-line. The output should look like: GNU Make 3.81 Copyright (C) 2006 Free Software Foundation, Inc. ... On certain systems, GNU Make might be available through a different command like 'gmake' or 'gnumake'. For these systems, replace 'make' by the appropriate command when invoking the NDK build system as described in the documentation. Great some strange thing called gnu make.. if your not going to tell me what it does maybe you then at least you could give me a URL to it? The NDK also requires a Nawk or GNU Awk executable being available on your development system. Note that the original 'awk' program doesn't implement the 'match' and 'substr' functions used by the NDK build system. Ok another tool, with 1 of 2 possible names, but not the third... and again where should i download this?? On Windows, you will need to install a recent release of Cygwin to use the NDK. See http://www.cygwin.com for instructions. Woohoo a URL! download took about a day because these install instructions do not specify what parts to download. II. Preparing your installation prebuilt cross-toolchain binaries: After installing and unarchiving the NDK, you will need to run the following command from the root folder: build/host-setup.sh hello? windows dont run nothing but .exe .com or .dll, just tell me how you want me to run it.. This will test your setup and make sure the NDK can work properly. Nothing is said about where any of these things need to be installed to (what directory)

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  • missing table in SQLite with specific version of HTC DESIRE HD

    - by William
    My application has a SQLite database in the asset folder. When the user launches my application, the database is created and the tables too. This works fine with a lot of devices (Nexus One, Htc Magic, SGS, X10… and even Htc Desire HD v2.2). My application works with all versions of Android (tested on my device (1.6, 2.2, 2.2.1 Htc Magic) and on the emulator (v1,5 until v2.3). I have just a problem with HTC DESIRE HD v2.2.1 1.72.405.3. The logcat: android.database.sqlite.SQLiteException: no such table: LISTE: , while compiling: select _id from LISTE at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2833) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2854) at android.app.ActivityThread.access$2300(ActivityThread.java:136) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2179) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:143) at android.app.ActivityThread.main(ActivityThread.java:5068) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:521) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) at dalvik.system.NativeStart.main(Native Method) Caused by: android.database.sqlite.SQLiteException: no such table: LISTE: , while compiling: select _id from LISTE at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method) at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:91) at android.database.sqlite.SQLiteCompiledSql.(SQLiteCompiledSql.java:64) at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:80) at android.database.sqlite.SQLiteQuery.(SQLiteQuery.java:46) at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:53) at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1417) at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1387) ... 11 more My application create the database but it doesn’t copy the tables of the file of the asset folder in data\data\packagename\databases\mydatabase. My code: public void createDataBase() throws IOException{ boolean dbExist = checkDataBase(); if(dbExist){ //do nothing - database already exist }else{ //By calling this method and empty database will be created into the default system path //of your application so we are gonna be able to overwrite that database with our database. this.getReadableDatabase(); try { copyDataBase(); } catch (IOException e) { throw new Error("Error copying database"); } } } private void copyDataBase() throws IOException{ //Open your local db as the input stream InputStream myInput = myContext.getAssets().open(DB_NAME); // Path to the just created empty db String outFileName = DB_PATH + DB_NAME; //Open the empty db as the output stream OutputStream myOutput = new FileOutputStream(outFileName); //transfer bytes from the inputfile to the outputfile byte[] buffer = new byte[1024]; int length; while ((length = myInput.read(buffer))!= -1){ if (length > 0){ myOutput.write(buffer, 0, length); } } //Close the streams myOutput.flush(); myOutput.close(); myInput.close(); } I think that the copydatabase function has a problem but I don't see. This code works fine with all devices except the HTC DESIRE HD v2.2.1 1.72.405.3. What problems might exist here for the HTC Desire with the given version above? How can this be remedied?

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  • Silverlight/Moonlight on Android devices

    - by vtortola
    Hi! I just got my first Android device, I love it... I also love the fact that you can create your own applications and distribute them as you please. I've read a little bit about Monodroid, and also that apparently Microsoft wants to put Silverlight on these devices, although there is not too much information about either of them... but what about Moonlight? If Monodroid is like Mono... why do we need it? wouldn't be better having Moonlight instead? Therefore we could create rich applications for Android devices. In Silverlight 4, if you install the app locally as full trust, it won't depend on the cross domain policies and you can connect wherever you want... What do you think?

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  • Android: Haptic feedback: onClick() event vs hapticFeedbackEnabled in the view

    - by dreeves
    If you want a button to provide haptic feedback (ie, the phone vibrates very briefly so you can feel that you really pushed the button), what's the standard way to do that? It seems you can either explicitly set an onClick() event and call the vibrate() function, giving a number of milliseconds to vibrate, or you can set hapticFeedbackEnabled in the view. The documentation seems to indicate that the latter only works for long-presses or virtual on-screen keys: http://developer.android.com/reference/android/view/View.html#performHapticFeedback(int) If that's right, then I need to either make my button a virtual on-screen key or manually set the onClick() event. What do you recommend? Also, if I want the vibrating to happen immediately when the user's finger touches the button, as opposed to when their finger "releases" the button, what's the best way to accomplish that? Related question: http://stackoverflow.com/questions/2228151/how-to-enable-haptic-feedback-on-button-view

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  • Triple-DES encryption in android.

    - by Raj
    Hi, i am new to android and planning to use Triple-DES encryption to encrypt data and store it into the DataBase in my android application. the thing is if i try to use DES or Triple DES its giving Hexadecimal encrypted string. But i need some encrypted value which looks like my previous value. i have 3 kinds of variables to encrypt. those are String,numeric and Date type variables. My requirement is if i encrypt a date type, i need to get the cipher text looks like date. So can any one suggest with an example to impliment and encryption technique.

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  • Android RTSP - MediaPlayer init failure / PVMFFailure

    - by Nils
    Hello, I have a camera by Cisco and like to stream it's video stream to my android phone. It's coded in MPEG4 so there should be no problem, but it's not working anymore (it worked with another camera a few weeks ago). Any idea what I might try ? I don't know what's wrong here. I/ActivityManager( 79): Starting activity: Intent { cmp=com.Projekt1/.CameraView } I/System.out(18792): SDPURL - rtsp://10.42.0.103:554/live.sdp I/NotificationService( 79): enqueueToast pkg=com.Projekt1 callback=android.app.ITransientNotification$Stub$Proxy@44a22218 duration=0 D/MediaPlayer(18792): Couldn't open file on client side, trying server side I/ActivityManager( 79): Displayed activity com.Projekt1/.CameraView: 270 ms (total 270 ms) W/MediaPlayer(18792): info/warning (1, 26) I/MediaPlayer(18792): Info (1,26) E/PlayerDriver( 52): Command PLAYER_INIT completed with an error or info PVMFFailure E/MediaPlayer(18792): error (1, -1) E/MediaPlayer(18792): Error (1,-1) D/VideoView(18792): Error: 1,-1 W/PlayerDriver( 52): PVMFInfoErrorHandlingComplete

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  • [Android] Change language settings (locale) for the device

    - by raychenon
    Hi, I know it's possible to have multiple languages in a single application through the res/string and depending on Locale. Here is a case http://stackoverflow.com/questions/2078289/android-controling-the-user-language Now how can I change the language in the phone ? Like I'd do by Menu Settings Language & Keyboard Select locale languages Is there some real code to access to these settings ? Or should I create intent for a shortcut to the language settings. Please post some code Edit : With Locale class developer.android.com/intl/fr/reference/java/util/Locale.html The constructor is at least Locale(String language) The input is language. How can you retrieve the current language used on the device ?

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  • Android ListView - Slide Subview in from Right?

    - by Chris
    I have a ListView. When I select an item in the ListView, I would like to have a Subview slide in from the right, the way that it does in many Apps. I have been searching for tutorials on this topic but am spinning my wheels. Maybe Android uses a term different than "Subview" ? Here's what I ended up doing: Create a New Class for the SubView Add the Subview class to the Manifest with <activity android:name=".SubViewClassName" /> inside the <application> tag Add this to the main Class ("lv" is the ListView) lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView parent, View view,int position, long id) { Intent myIntent = new Intent(view.getContext(),SubView.class); startActivityForResult(myIntent, 0); } });

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  • Display custom title bar for Android with XML

    - by Casebash
    In Android documentation describing "Configuring General Window Properties", it is suggested that specifying properties via XML is preferable whenever possible to avoid seeing the title bar flash. As an example, instead of setting Window.FEATURE_NO_TITLE with requestWindowFeature, they set it to @android:style/Theme.NoTitleBar. Is there a similar way to set a custom title bar to be used in the XML? Update: I just found this article, according to which this article, the best way to draw a title bar is to ignore FEATURE_CUSTOM_TITLE and instead just draw the title bar as part of your main view. This would not only avoid the flashing, but also problems caused by padding.

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  • Android - getTabHost() is undefined

    - by gbhall
    I started learning Java and how to program for Android last night :) So far I'm on this tutorial: developer.android.com/resources/tutorials/views/hello-tabwidget.html Clearly these tutorials have been designed for people that already have experience with Java. Despite the tutorial lacking all the required steps (for an absolute beginner with Java) and even having a typo, it seems I've figured everything out (which I'm really proud of :p). Except I cannot figure out how to fix TabHost tabHost = getTabHost(); which apparently is undefined. I have one other error shown in the linked image below, but I don't see why. Here is the linked image. Thanks, Gareth

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  • how to add bouncycastle algorithm to android

    - by Vamsi
    Hi friends, I am trying to write a small application using bouncycastle algorithm, from the http://tinyurl.com/ylclavn (BouncyCastleProvider.java) it says we have to import and add the provider during runtime by the following code import org.bouncycastle.jce.provider.BouncyCastleProvider; Security.addProvider(new BouncyCastleProvider()); error - The import org.bouncycastle cannot be resolved; during import error - BouncyCastleProvider cannot be resolved to a type; when calling addProvider I though bouncycastle is not provided with the Android 1.6 SDK, so thought of installing separately. how should i do this? If Bouncycastle is shipped along with SDK, what should i do to avoid these errors? I am using Android 1.6, eclipse-V3.4.0 on winXP . Thanks in advance

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  • Interfacing Android Nexus One with Arduino + BlueSmirf

    - by efgomez
    I'm a bit new to all of this, so bear with me - I'd really appreciate your help. I am trying to link the Android Nexus One with an arduino (Duemilanove) that is connected to a BlueSmirf. I have a program that is simply outputting the string "Hello Bluetooth" to whatever device the BlueSmirf is connected to. Here is the Arduino program: void setup(){ Serial.begin(115200); int i; } void loop(){Serial.print("Hello Bluetooth!"); delay(1000); } One my computer BT terminal I can see the message and connect no problem. The trouble is with my android code. I can connect to the device with android, but when I look at the log it is not displaying "Hello Bluetooth". Here is the debug log: 04-09 16:27:49.022: ERROR/BTArduino(17288): FireFly-2583 connected 04-09 16:27:49.022: ERROR/BTArduino(17288): STARTING TO CONNECT THE SOCKET 04-09 16:27:55.705: ERROR/BTArduino(17288): Received: 16 04-09 16:27:56.702: ERROR/BTArduino(17288): Received: 1 04-09 16:27:56.712: ERROR/BTArduino(17288): Received: 15 04-09 16:27:57.702: ERROR/BTArduino(17288): Received: 1 04-09 16:27:57.702: ERROR/BTArduino(17288): Received: 15 04-09 16:27:58.704: ERROR/BTArduino(17288): Received: 1 04-09 16:27:58.704: ERROR/BTArduino(17288): Received: 15 ect... Here is the code, I'm trying to put only the relative code but if you need more please let me know: private class ConnectThread extends Thread { private final BluetoothSocket mySocket; private final BluetoothDevice myDevice; public ConnectThread(BluetoothDevice device) { myDevice = device; BluetoothSocket tmp = null; try { tmp = device.createRfcommSocketToServiceRecord(MY_UUID); } catch (IOException e) { Log.e(TAG, "CONNECTION IN THREAD DIDNT WORK"); } mySocket = tmp; } public void run() { Log.e(TAG, "STARTING TO CONNECT THE SOCKET"); InputStream inStream = null; boolean run = false; //...More Connection code here... The more relative code is here: byte[] buffer = new byte[1024]; int bytes; // handle Connection try { inStream = mySocket.getInputStream(); while (run) { try { bytes = inStream.read(buffer); Log.e(TAG, "Received: " + bytes); } catch (IOException e3) { Log.e(TAG, "disconnected"); } } I am reading bytes = inStream.read(buffer). I know bytes is an integer, so I tried sending integers over bluetooth because "bytes" was an integer but it still didn't make sense. It almost appears that is sending incorrect baud rate. Could this be true? Any help would be appreciated. Thank you very much.

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  • how to remove listview items in android

    - by kavitha
    Hi all,, Can somebody please give me an example code of removing all ListView items and replacing with new items. I tried replacing the adapter items.Still no results. my code is at first i am calling populateList(){ results -populated arraylist with strings ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results); listview.setAdapter(adapter); adapter.notifyDataSetChanged(); listview.setOnItemClickListener(this); } // now populating list again repopulateList(){ results1-populated arraylist with strings ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results1); listview.setAdapter(adapter1); adapter1.notifyDataSetChanged(); listview.setOnItemClickListener(this); } Here replpulateList() method will add to listview items. It doent remove/replace all listview items. Please Help.

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  • Android: Custom view based on layout: how?

    - by Peterdk
    I am building a Android app and I am a bit struggling with custom Views. I would like to have a reusable View that consist of a few standard layout elements. Let's say a relativelayout with some buttons in it. How should I proceed. Should I create a custom view class that extends RelativeLayout and programmaticly add those buttons? I would think that's a bit overkill? What's the way to do it properly in Android?

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