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• Android - show webview in same tab containing a list

  - by Taz

  I am using a TabWidget that contains a List in one tab. What I want to do is when a user selects an item, a webview is shown in that tab. If the user then wants to go back to the list, they would click on the list tab. I can get the webview up that replaces the whole tabwidget but don't know how to leave the tabs and show a webview. Any help greatly appreciated

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• Android: ScoreNinja is only displaying 1 highscore....

  - by Dave B

  Hi All, I am trying to implement ScoreNinja into one of my apps. It all seems to work, but when I submit a score it replaces the current #1 score with any that I supply, even it is lower. This means that only one score is ever displayed. Anyone got any idea what I'm doing wrong? I have e-mailed the dev but he/they haven't responded. Thanks in advance for any info on this, most appreciated! Dave B

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• Android different resolutions problem

  - by user346665

  Hi, I have 9 (vertical) radio buttons and they are all showing in default resolution (320x480) without problems . But when I'm trying in resolution for Htc Tattoo (240x320) the last radio button is hidden - there isn't space to be shown. How to make uniformly size ?

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• android, find the nearest location without going through all the locations

  - by Marwan

  I am building a taxi dispatching app first: I need the passenger app to show the nearest taxis, now I know how to do that in code but in my way I have to go through all the taxis locations(in database on server) and calculate the distance from the passenger location and get the lowest ones - I don't want to do this because there will be a lot of taxis and going through all of them and making some math is kind of pain on the server- is there a way to get the nearest ones without going through all of them? second: what the best database to use - first, should it be sql or non-sql - I need a very robust database, because there will be a lot of updates (I mean the passengers locations added then deleted when arriving to destination && the taxis location changes frequently) finally: I will use RubyOnRails to do the server side and json as data transfer format, do you have a recommendation to me on something better? Thanks

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• Android: heavy traffic on server causes app to force close

  - by user522559

  I have developed an app to communicate with my own server and published it. However, sometimes the app force closes. I know there is no bug in the code because the app works properly most of the time, but sometimes it is waiting for an answer from the server forever. I think this is due to the fact that so many people are using the app, and the app refreshes every 1 second or so, so this heavy traffic causes the server to take a large amount of time to respond. So how do you take care of such a use case? should I have a use case where if the server does not respond after some time you just stop the app and throw a message saying that the server is not responding or something like that?

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• Custom Attributes in Android

  - by Arun

  I'm trying to create a custom attribute called Tag for all editable elements. I added the following to attrs.xml <declare-styleable name="Spinner"> <attr name="tag" format="string" /> </declare-styleable> <declare-styleable name="EditText"> <attr name="tag" format="string" /> </declare-styleable> I get an error saying "Attribute tag has already been defined" for the EditText. Is it not possible to create a custom attribute of the same name on different elements?

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• Writing Resources from filesystem in Android

  - by Markus

  Hi, as I need to get a specific Frame from a Website I want to display in an WebView, I decided to grab the .html from the net and save it under file:///data/data//files/file.html. Stroed there I can edit it using regex or String methods. Now two questions: Is there a way to bind this file to an resource. e.g. to /res/raw/file.html and get it updated dynamically as i edit it? Or can i write the File directly to the resources? Is this whole stuff I do there any good or performant at all? I mean maybe there is a better way to get the .html code between two tags from a Webpage and display it via WebView. Kind regards Markus

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• Can I take the voice data (f.e. in mp3 format) from speech recognition? [closed]

  - by Ersin Gulbahar

  Possible Duplicate: Android: Voice Recording and saving audio I mean ; I use voice recognition classes on android and I succeed voice recognition. But I want to real voice data not words instead of it. For example I said 'teacher' and android get you said teacher.Oh ok its good but I want to my voice which include 'teacher'.Where is it ? Can I take it and save another location? I use this class to speech to text : package net.viralpatel.android.speechtotextdemo; import java.util.ArrayList; import android.app.Activity; import android.content.ActivityNotFoundException; import android.content.Intent; import android.os.Bundle; import android.speech.RecognizerIntent; import android.view.Menu; import android.view.View; import android.widget.ImageButton; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { protected static final int RESULT_SPEECH = 1; private ImageButton btnSpeak; private TextView txtText; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); txtText = (TextView) findViewById(R.id.txtText); btnSpeak = (ImageButton) findViewById(R.id.btnSpeak); btnSpeak.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent( RecognizerIntent.ACTION_RECOGNIZE_SPEECH); intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en-US"); try { startActivityForResult(intent, RESULT_SPEECH); txtText.setText(""); } catch (ActivityNotFoundException a) { Toast t = Toast.makeText(getApplicationContext(), "Ops! Your device doesn't support Speech to Text", Toast.LENGTH_SHORT); t.show(); } } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { case RESULT_SPEECH: { if (resultCode == RESULT_OK && null != data) { ArrayList<String> text = data .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS); txtText.setText(text.get(0)); } break; } } } } Thanks.

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• Android: Get the screen resolution / pixels as integer values

  - by poeschlorn

  Hi guys, this is a really simple question on which I've found no answer :/ How can I quickly access the screen resolution (width, height) as integer values? I've tried this one, but it always shows zero on my emulator: DisplayMetrics dm = new DisplayMetrics(); int width = dm.widthPixels / 2; In my case I want to dynamically create a table with tableRows, each containing two cols. This cols all shall fill half of the screen in width. Can someone give me a hint?

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• Make a String text Bold in Java Android

  - by meskh

  I want to make Habit Number: bold , I tried the HTML tag but it didn't work. I did some research but couldn't find any. Hope someone is able to help me. Thanks! String habitnumber = "Habit Number: " + String.valueOf(habitcounter); String Title = habit.getTitle(); String description = habit.getDescription(); //Set text for the row tv.setText(habitnumber+ "\n" + Title + " \n" + description + "\n --------------------");

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• android touchevent for listActivity

  - by haasini

  Hi, I have created ListActivity of images i want touchevent just like onItemClickListner how can i do it? i'm not finding any onItemTochListener plz reply Thanks

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• how to send image to remote server using web services in android

  - by Aswan

  get image from sdcard and store that image to remote server. i am getting the image from sdcard and i converterd that image to bytearray by using bitmap .but what's the problem if i oberver byte array it is showing some different values it is not matching with .net image byte array conversion. can u pl help if you have any solution it is very urgent to me following is the code i am using can u pl suggest me FileInputStream fin = new FileInputStream(new File("/sdcard/pictures/1.jpg")); BufferedInputStream bis = new BufferedInputStream(fin,3000); byte[] data = new byte[bis.available()]; bis.read(data, 0, data.length); byte[] data1=new byte[data.length]; for (int i = 0; i < data.length; i++) { System.out.print(data[i]); data1[i]=data[i]; } System.out.println("5..................."+data1); Bitmap bitmap = BitmapFactory.decodeByteArray(data1,0,data1.length); System.out.println("6..................."+data1.length); Log.v("hgfjohfjghjdfhgj",""+bitmap); if(bitmap!=null) image.setImageBitmap(bitmap); else Log.e("Bitmap "," Not Created");

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• display data after every 10 seconds in Android

  - by Farha Ansari

  Hi, I have to display some data after evry 10 seconds. Can anyone tell me how to do that? Thanks

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• Android Java writing text file to sd card

  - by Paul

  I have a strange problem I've come across. My app can write a simple textfile to SD card and sometimes it works for some people but not for others and I have no idea why. Some people it force closes if they put some characters like "..." in it and such. I cannot seem to reproduce it as I've had no troubles but this is the code that handles it. Can anyone think of something that may lead to problems or a better to way to do it? public void generateNoteOnSD(String sFileName, String sBody){ try { File root = new File(Environment.getExternalStorageDirectory(), "Notes"); if (!root.exists()) { root.mkdirs(); } File gpxfile = new File(root, sFileName); FileWriter writer = new FileWriter(gpxfile); writer.append(sBody); writer.flush(); writer.close(); Toast.makeText(this, "Saved", Toast.LENGTH_SHORT).show(); } catch(IOException e) { e.printStackTrace(); importError = e.getMessage(); iError(); } }

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• Android -- Object Creation/Memory Allocation vs. Performance

  - by borg17of20

  Hello all, This is probably an easy one. I have about 20 TextViews/ImageViews in my current project that I access like this: ((TextView)multiLayout.findViewById(R.id.GameBoard_Multi_Answer1_Text)).setText(""); //or ((ImageView)multiLayout.findViewById(R.id.GameBoard_Multi_Answer1_Right)).setVisibility(View.INVISIBLE); My question is this, am I better off, from a performance standpoint, just assigning these object variables? Further, am I losing some performance to the constant "search" process that goes on as a part of the findViewById(...) method? (i.e. Does findsViewById(...) use some sort of hashtable/hashmap for look-ups or does it implement an iterative search over the view hierarchy?) At present, my program never uses more than 2.5MB of RAM, so will assigning 20 or so more object variables drastically affect this? I don't think so, but I figured I'd ask. Thanks.

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• Creating android app Database with big amount of data

  - by Thomas

  Hi all, The database of my application need to be filled with a lot of data, so during onCreate(), it's not only some create table sql instructions, there is a lot of inserts. The solution I chose is to store all this instructions in a sql file located in res/raw and which is loaded with Resources.openRawResource(id). It works well but I face to encoding issue, I have some accentuated caharacters in the sql file which appears bad in my application. This my code to do this : public String getFileContent(Resources resources, int rawId) throws IOException { InputStream is = resources.openRawResource(rawId); int size = is.available(); // Read the entire asset into a local byte buffer. byte[] buffer = new byte[size]; is.read(buffer); is.close(); // Convert the buffer into a string. return new String(buffer); } public void onCreate(SQLiteDatabase db) { try { // get file content String sqlCode = getFileContent(mCtx.getResources(), R.raw.db_create); // execute code for (String sqlStatements : sqlCode.split(";")) { db.execSQL(sqlStatements); } Log.v("Creating database done."); } catch (IOException e) { // Should never happen! Log.e("Error reading sql file " + e.getMessage(), e); throw new RuntimeException(e); } catch (SQLException e) { Log.e("Error executing sql code " + e.getMessage(), e); throw new RuntimeException(e); } The solution I found to avoid this is to load the sql instructions from a huge static final string instead of a file, and all accentutated characters appears well. But Isn't there a more elegant way to load sql instructions than a big static final String attribute with all sql instructions ? Thanks in advance Thomas

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• Android Layouts Scrolling in Landscaped Mode

  - by y ramesh rao

  I have a strange issue in which on rotating the Screen to Landscaped mode the Views present inside Remain at the same place But I cannot scroll them inside the screen. How can I make them Scroll so that every thing that move out should be displayed properly to the user. Should there be any more attribute to be set for allowing such kind of behavior.

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• android internal phone storage

  - by John

  how can you retrieve yours phone internal storage from an app? I found memoryinfo, but it seems that returns information on how much memory your currently running tasks. I am trying to get my app to retrieve how much internal phone storage is available.

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• Playing Ogg Sound in Android

  - by baba tenor

  In my application, I am trying to play a sound file in ogg format, stored in raw folder in res directory of my application. When I press the button that calls below function, it just freezes with the button pressed and does not respond. In the end, I have to terminate the application from Eclipse. Nothing about an error or exception in Logcat. In debugging mode, it enters create function and never comes back. What am I doing wrong? private void playbeep() { mPlayer = MediaPlayer.create(this, R.raw.beep); mPlayer.start(); mPlayer.release(); }

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• Opengl-es android best way to preload images

  - by lacas

  I have a game app, and i have many screens. The first screen will be the SCREEN.LOADING screen. When the app starting, I want to show a picture "loading please wait" while the images, menus, etc loaded succesfull. I tried asynctask to do this, but its not work in GLThread. What is the way to do this in opengl-es? 03-06 12:46:35.282: ERROR/AndroidRuntime(32736): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() Thanks, Leslie

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• Android - BitmapFactory.decodeByteArray - OutOfMemoryError (OOM)

  - by Bob Keathley

  I have read 100s of article about the OOM problem. Most are in regard to large bitmaps. I am doing a mapping application where we download 256x256 weather overlay tiles. Most are totally transparent and very small. I just got a crash on a bitmap stream that was 442 Bytes long while calling BitmapFactory.decodeByteArray(....). The Exception states: java.lang.OutOfMemoryError: bitmap size exceeds VM budget(Heap Size=9415KB, Allocated=5192KB, Bitmap Size=23671KB) The code is: protected Bitmap retrieveImageData() throws IOException { URL url = new URL(imageUrl); InputStream in = null; OutputStream out = null; HttpURLConnection connection = (HttpURLConnection) url.openConnection(); // determine the image size and allocate a buffer int fileSize = connection.getContentLength(); if (fileSize < 0) { return null; } byte[] imageData = new byte[fileSize]; // download the file //Log.d(LOG_TAG, "fetching image " + imageUrl + " (" + fileSize + ")"); BufferedInputStream istream = new BufferedInputStream(connection.getInputStream()); int bytesRead = 0; int offset = 0; while (bytesRead != -1 && offset < fileSize) { bytesRead = istream.read(imageData, offset, fileSize - offset); offset += bytesRead; } // clean up istream.close(); connection.disconnect(); Bitmap bitmap = null; try { bitmap = BitmapFactory.decodeByteArray(imageData, 0, bytesRead); } catch (OutOfMemoryError e) { Log.e("Map", "Tile Loader (241) Out Of Memory Error " + e.getLocalizedMessage()); System.gc(); } return bitmap; } Here is what I see in the debugger: bytesRead = 442 So the Bitmap data is 442 Bytes. Why would it be trying to create a 23671KB Bitmap and running out of memory?

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• How to add g729 codec in Android application?

  - by juned

  i am developing a SIP application for making and receiving a call and i want to add the G729 codec in my application. currently i am doing analysis on open source project SipDroid. if i want to make that application to support G729 codec how to do that? there is a different codecs configuration file in org.sipdroid.codecs package.how do create the this kind of .java file for G729 codec? Any suggestion and response will be appreciated.

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• Is there a black progress bar to be visible on a white background?

  - by Pentium10

  The default progress wheel on Android doesn't display well when the background is white, it's barely visible. How can I fix this?

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• Problems with Twitter on Android App

  - by Dayner Alvarez Rodriguez

  I'm trying to show one public twitter profile in one WebView of my app, is not necessary to login twitter, in the MotoDev Simulator this works fine, but in the physical device don't work, this: "403 fobiden limite exceed rate" error appears, this is the simple code line that I'm using: webView.loadUrl("https://mobile.twitter.com/#!/asambleaecuador"); and works fine into de MotoDev simulator AVD ....can somebody helpme please!!! Thanks

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• back button android

  - by Raogrimm

  i am having trouble implementing the back button properly. all of the code snippets i have seen have not worked for me. what i am trying to do when i press the back button is just go back to the previous list. pretty much i have a list within a list and i just want it to go back to the previous list. how would i go about doing this? this is the list i have, every item has a separate list that it has. lets say you click on weapons, you then get a list of different weapon types and so on final String[] weapons = getResources().getStringArray(R.array.weapons); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, weapons)); lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { System.out.println("item clicked: "+weapons[position]); switch(position) { case 0: final String[] axes = getResources().getStringArray(R.array.axes); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, axes)); break; case 1: final String[] clubs = getResources().getStringArray(R.array.clubs); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, clubs)); break; case 2: final String[] daggers = getResources().getStringArray(R.array.daggers); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, daggers)); break; case 3: final String[] great_axes = getResources().getStringArray(R.array.great_axes); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, great_axes)); break; case 4: final String[] great_katana = getResources().getStringArray(R.array.great_katana); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, great_katana)); break; case 5: final String[] great_swords = getResources().getStringArray(R.array.great_swords); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, great_swords)); break; case 6: final String[] hand_to_hand = getResources().getStringArray(R.array.hand_to_hand); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, hand_to_hand)); break; case 7: final String[] katana = getResources().getStringArray(R.array.katana); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, katana)); break; case 8: final String[] polearms = getResources().getStringArray(R.array.polearms); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, polearms)); break; case 9: final String[] scythes = getResources().getStringArray(R.array.scythes); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, scythes)); break; case 10: final String[] staves = getResources().getStringArray(R.array.staves); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, staves)); break; case 11: final String[] swords = getResources().getStringArray(R.array.swords); setListAdapter(new ArrayAdapter<String>(ffxidirectory.this, R.layout.list_item, swords)); break; } } });

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