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• Android Loading & Playing Sound Based on String

  - by Chance

  I'm currently working on a simple Android app, and right now I am trying to get it to load in and play sounds. The problem I am faced with is that I want the sound it uses to be based on a string (With the same name as the sound file). The reason for this is simplicity in both the code and adding on to it. Now unfortunately I can't just slap a string in place of referencing the actual sound, but is there some way for me to compare a string to the entire raw folder to find the matching sound, or some other alternative short of defining every sound manually? Thank you for your time.

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• Android camera being landscaped in some devices

  - by nala4ever

  Im new to Android and I tried a tutorial for camera API. The tutorial works fine. When I use HTC desire I can see the camera view in both portrait and landscape, but when I use Samsung Galaxy I get a the camera view only in a landscaped view. I tried the following code to rotate the camera view as well.. Camera.Parameters parameters = camera.getParameters(); parameters.setRotation(90); then the camera doesn't work as expected. (screen splits into 4 and not clear). Does anyone have an idea for this issue ? Thanks.

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• Android - Opening phone deletes app state

  - by Tom G

  Hey everyone, I'm writing an android application that maintains a lot of "state" data...some of it I can save in the form of onSaveInstanceState but some of it is just to complex to save in memory. My problem is that sliding the phone open destroys/recreates the app, and I lose all my application state in the process. The same thing happens with the "back" button, but I overloaded that function on my way. Is there any way to overload the phone opening to prevent it from happening? Thanks in advance.

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• Android-USB Connectivity

  - by neoHacker

  Hi all, I'm in the middle of an android app that need to check whether the device is connected to another system or pendrive through usb and if it is connected i need to send a copy of my database file through usb port. This sis for backing up my database. I have no idea how to prompt for usb connections. I searched the net. But no results!.Can anyone please help. Because i'm stuck here at my project. Thanks in advance.

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• Get the co-ordinates of a touch event on Android

  - by Joe

  Hi, I'm new to Android, I've followed the hello world tutorial through and have a basic idea of what's going on. I'm particularly interested in the touch screen of my T-Mobile Pulse so just to get me started I want to be able to write the co-ordinates of a tocuh event on the screen, so say the user touched the co-ordinate 5,2 - a textview on the screen would display that. At present I have a simple program that just loads an xml file which contains the textview I intend to write the co-ordinates in. Thank you in advance, I did Google for help and searched stackoverflow but everything I found either went way over my head or wasn't suitable for this. Cheers.

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• Add Words to Android's UserDictionary

  - by SaulBack

  I want to add an entire medical dictionary to my android (Moto Droid). I would like to be able to send text messages and have the medical words be in the predictable text. I've been trying to write a small app that would accomplish this, but everything I try the app crashes on startup. I've never written an app for a mobile platform so that is a first for me. Here is what is not working properly. public class WordAdd extends Activity { /** Called when the activity is first created. */ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); UserDictionary.Words.addWord( this , "newMedicalWord", 1, UserDictionary.Words.LOCALE_TYPE_CURRENT); } } It seems so simple to do, yet I am so stuck. Thanks for any help you can provide.

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• Android sql creating database once

  - by semajhan

  One thing i'm not understanding is how to create the database and data just once in an android application. I extend SQLiteOpenHelper and use a DataHelper class that to manipulate data. Now, I have addEvent() and updateEvent() within the DataHelper class. I create an instance of DataHelper in my Activity and addEvent() a couple of times to insert data. Well, now I don't know how to just do that once. If I restart the app, its just going to "addEvent()" again and so the data is being reset every time. Sorry for the probably really REALLY noob question. The only solution I found was not using the DataHelper class and just adding data "manually" within the onCreate() method in SQLiteOpenHelper.

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• Android GPS app not closing connection

  - by tadywankenobi

  Hi there, Fairly new to Android, so just trying to work out: I have a simple Maps app that plots a couple of locations. It's a demo for a potentially bigger app later. The one thing I would like to do is make it exit correctly. I want to assume that when a user hits the "Home" or "Back" button on the phone, that they have exited the app. I want when this has happened for the GPS process to shut down. I can't seem to find any examples of how to do this correctly. I have an onDestroy() subclass with a super.onDestroy() method but this doesn't seem to cut it. I've tested on my phone and while everything else seems to work fine, this is bugging me. I keep seeing the GPS icon in the notifications bar. To give you an example, this doesn't happen when you leave GoogleMaps. Anyone any ideas or know what I'm missing? T

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• [Android] Returning to a ListView with a text filter

  - by sosiouxme

  I enabled text filtering on my ListView in the expected way; adding android:textFilterEnabled=”true” in resource definition and (as I'm using a SimpleCursorAdapter) setting a FilterQueryProvider that provides a filtered cursor like so: public Cursor runQuery(CharSequence constraint) { Cursor cur = mDba.fetchTrackers(mCurrentGroupId, constraint.toString()); startManagingCursor(cur); return cur; } My question is this: once the user selects a list item, goes off to another activity, and returns to this one, how can I control the state of the filter previously applied? What I'm seeing right now is that when I return to the activity, the cursor being used is the unfiltered one set on the filter at creation, but the filter text they typed is still shown (and typing keys causes the filter to be applied). What I'd like to do is either clear the filter, or keep the filtered cursor that the activity was left with.

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• Android how to call a method of MainActivity in SmsReceiver Class

  - by GeneticSmart

  I'm very new to Android Programming, It would be really great if someone can help me in this.My project contains two JAVA files. MainActivity.java extends Activity SMSReceiver.java extends Broadcastreceiver The SMSreceiver.java has the code which displays any incoming SMS in toast. Can you please tell me how to call a function in MainActivity whenever a particular SMS is received. For eg: when I receive sms called as starttemp it should call a function starttemp. I have searched a lot and found that intents are a way to do this and we cannot call these methods directly. Please can anyone help me in this? And it would be really great if someone can send me working code.

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• Android - Get all sms in phone sent to a peson

  - by satyam

  I'm new to android programming. just to improve my skills, i started with some project in my mind. when app starts, it will show a button. on click of it, it will allow me to select a contact from the address book. then i want to retrieve all the sms sent to that contact (if they are stored in sms outbox). Is it possible. Can some one guide me. If there is some tutorial on these topics, can you let me know the URL or source code? Thanks in Advance.

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• How to get the number of unread gmail mails (on android)

  - by Lord Otori

  I've been trying to get the number of unread gmail mails with no luck. I've read Gmail.java and gmail4j both links taken out of this site from this question: Android - How can I find out how many unread email the user has? But still after having read all of that and a couple of other sites that talked about this particular subject my question remains: Q: How can I get the Gmail Unread Count? Sorry if it seams a bit insistent but I clearly lack the knowledge to find this out on my own from the source. PS: I would like to clarify that I want to do it without having to ask the user for credentials. Just 2 add some colors to the question let me show you the looks of my app.

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• how to view all images in android's built- in gallery from a php page

  - by ramz

  Hi, I am developing an application to display all the images in android's built-in gallery in to a php page. I posted the uri(content://media/extrenal/images/media) of the gallery images to the php page. I was not able to recreate images by using webView function loadUrl(). Should i need to upload the whole gallery to another directory and display the images? Or passing the bitmap itself will do? Please suggest me an idea to solve the problem.

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• Sending MMS into different Android devices

  - by 6istik

  I need to send MMS. Into my hero this code looks ugly but works: Intent sendIntent = new Intent("android.intent.action.SEND_MSG"); sendIntent.putExtra("address", toText); sendIntent.putExtra(Intent.EXTRA_SUBJECT, "subject"); sendIntent.putExtra("sms_body", textMessage); sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(url)); sendIntent.setType("image/jpeg"); startActivity(sendIntent); But it seems to me that on the other devices it doesn't work at all. I want to send directly to main messaging app without any choices(the better solution of course - direct from my app). Because not sure that all of them would handle it properly. If anybody could recommend any third-party library I'll be appretiate.

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• Android Login - Best implementation

  - by perdian

  Hi everybody, I'm planning to implement an Android application that requires a login screen. If the user opens the activity something like this should happen: If user is logged in, goto 3 If user is not logged in open the login screen and perfom login Show my application content So, what's the "correct" way of implementing a login? Implement a StartActivity that perfoms the check if the user is logged in, implement a LoginActivity that implements the logging and an ApplicationActivity that actually implements the application logics? Implement just one Activity and handle the login by using multiple views which I show according to the application state? Are there any examples or tutorials for this scenario?

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• comparing int values in android

  - by user1183066

  I am making an android game that is checking the players health value when this method is being runned. But however, it's not reacting. It doesn't do anything, when the value is less than 3, it shouldn't do anything, but when it is equal to 3, it should run a method. Please help me and thanks SO much in advance! This is the code that i am using: private void checkLivesLeftValue() { if (livesLeftValue == 3) { //Message to display: "You lost! onMethod(); } else { livesLeftValue = livesLeftValue + 1; } }

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• Persistent UDP sessions on Android

  - by Wedgeski

  I have a client-server app which requires me to maintain a persistent session over UDP. The goal is to maintain a path from the server to the mobile Android device no matter what route it has to the internet (WiFi or mobile network). This is achieved using a proprietary, well-tested session-management protocol over UDP. I need the phone to be able to maintain, say, a five-minute keep-alive with the server at all times. Ideally I would like to do this without maintaining any wake-locks on the device. I don't want the screen to light up every time I send a UDP to the server, for example, and I don't want to have a damaging effect on battery usage. Has anyone addressed this problem?

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• Android:simulating 1-bit display

  - by user1681805

  I'm new to Android,trying to build a simple game which use 1-bit black and white display.the screen dimension is 160 * 80,that is 12800 pixels.I created a byte array for the "VRAM",so each time it draws,it first checks the array. The thing is that I am not drawing a point or rectangle for each pixel,I'm using 2 bitmaps(ARGB_4444,I have to use alpha channel,because of shadow effect),1 for positive and 1 for negative.So I called 12800 times drawBitmap() in the surfaceView's Draw method.I know that's silly...But even for openGL,12800 quards won't be that fast right? Sorry..I cannot post imgs.the link of screenshot:http://i1014.photobucket.com/albums/af267/baininja/Screenshot_2013-10-22-01-05-36_zps91dbcdef.png should i totally give up this and draw points on a 160*80 bitmap then scale it to intented size?But that loses the visual effects.

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• How to set credential persistence permanent on Android

  - by doreamon

  My app has save login credential feature, so I store cookies for the next use after succeeding to sign in. However, after a time period, the session will be time out and cannot log in with the cookies any more. On iOS, after setting credential persistence to permanent, the app works nicely even after restarting the phone: [[challenge sender] useCredential:[NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistencePermanent] forAuthenticationChallenge:challenge]; On Android, I cannot find out such kind of this option. Here is from my HttpHelper class: ((AbstractHttpClient) HttpHelper.client).getAuthSchemes().register("ntlm",new NTLMSchemeFactory()); NTCredentials creds = new NTCredentials(user, pass, "", domain); ((AbstractHttpClient) HttpHelper.client).getCredentialsProvider().setCredentials(AuthScope.ANY, creds); The server is SharePoint so I have to deal with ntlm authentication by following this instruction If you have idea, please let me know. Thank you.

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• Android: how to have app talk to a web page, ie send gps location

  - by Ted pottel

  I'm trying to write a app, where a webpage will have a button that when press will give the GPS location of the phone. I was going to have the android app create a thread that waits on a scket connection. The issue is that 1. Getting the ip addrs of the phone 2. I was told this would really drain the battery I was also thinking about having the phone send the gps location to a webserver like evrry 10 seconds. This sort of seams like a waste of bandwidth. Is there a good way to do this?

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• How to disable EditText box in Android when using LongClick Listener

  - by user1443051

  I have EditText box which has focusable and focusableontouch enabled and all the rest are disabled in XML. The problem I am facing is that on longclick on this text box the selectAll and select pop up comes up - I would like to disable it and at the same time use the OnlongClick Funtion too.. So I tried android:longClickable="false" on XML and set the text box using LongClick listener in java Something like this: edEmailId.setOnLongClickListener(myOnLongClickListener); Didn't work I am still getting selectALL popup window. Is LongClickable in XML and SetOnlongClicklistener the same? If so how do I disable the popup? Awaiting your response! Thanks!

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• Legalities of programming companion Android apps

  - by honeal

  I'm interested in creating companion apps to several current Android apps and was curious if there is a legal issue with using their name and/or icons from the app. Like the companion app being called Angry Birds Companion or something and you were to use a picture of the level or one of the characters, etc (I'm simply pulling from thin air so don't judge the idea, just the question, please). I know there are Strategy guides to video games that use icons and names, but I'm assuming they have prior consent. Does anyone have any factual input on this?

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• Understanding memory leak in Android app.

  - by sat

  After going through few articles about performance, Not able to get this statement exactly. "When a Drawable is attached to a view, the view is set as a callback on the drawable" Soln: "Setting the stored drawables’ callbacks to null when the activity is destroyed." What does that mean, e.g. In my app , I initialize an imageButton in onCreate() like this, imgButton= (ImageButton) findViewById(R.id.imagebtn); At later stage, I get an image from an url, get the stream and convert that to drawable, and set image btn like this, imgButton.setImageDrawable(drawable); According to the above statement, when I am exiting my app, say in onDestroy() I have to set stored drawables’ callbacks to null, not able to understand this part ! In this simple case what I have to set as null ? I am using Android 2.2 Froyo, whether this technique is required, or not necessary.

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• Converting iPhone/iPad apps onto Android

  - by jimbo

  Hi all, I have started to build my own apps on iPhones and iPad using the iPhone SDK, and the next question that is aways asked by the client is "Can we have it on Android?"... So my question to you the 'internet' is, what are my options? I don't have the time to learn another language, (learning iOS has been enough!) so are there companies who specialize in this, or are there online option that do a convert? Any help on this welcome, just need to know which way to turn...

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• Making interactive touch objects on Android

  - by Greenhouse_Gases

  I've never built a game before, and I've not programmed for Android before but am looking to do so over the summer by building a game. What type of object do I use for a shape that I want the user to be able to drag around the screen for instance using touch gestures? How do I tie together the MotionEvent, View and Graphics2D to make objects drawn on screen that can be interacted with? I imagine this will use ActionListeners / Handlers but I'm a bit confused at this stage... A simple breakdown of steps would be much appreciated. Thanks

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