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  • Design application to send messages by marking circle on the map where you want to send message

    - by jhamb
    This is question asked to me by an interviewer, in which a map of world is given, and for those country you want to send message, just marked circle on that area, and just send to all the people comes in that area. Question visual link is : Design this application The approach that I told him: Firstly build whole person's data (contacts , place information and all) Then where you mark on the map, just build a cluster of that country using Hadoop and fire the message to all the person's contact comes in that cluster. So help me for better understandings of this problem, and if have another good approach (all back-end ad front-end) , then please tell me or discuss here with me. Thanks in advance.

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  • Determining temporary Internet file type (Chrome)

    - by DJoyce
    My broadband speed is sometimes lacking, and therefore it can be difficult to view Flash streams of programmes. So my idea is to start a Flash stream, let it run to completion no matter how long it takes, and then view the temporary .swf file. I've discovered the location of my Google Chrome temporary files. However, there is no file type associated with these files. Therefore, I'm wondering if the idea above will work, and how can I retrieve only .swf files?

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  • Why are browsers so heavy?

    - by Kaivosukeltaja
    Back in 1998 I had a computer with 233MHz Pentium MMX CPU and a GFX card with no 3D acceleration. It was able to run games like Quake II at a decent FPS rate. My current computer has tons more performance and a mid-class GPU, yet struggles to reach 20 FPS when rendering a single model inside a skybox with WebGL. Even regular pages with lots of 2D CSS animations bring many modern computers to their metaphorical knees. As a web developer I understand there's a lot going on in a web page but not what makes it that heavy. Modern browsers compile JavaScript to CPU native machine code before running it and rendering into a canvas element shouldn't trigger DOM rebuilds so theoretically it should be a lot faster than it is. What am I missing here and is it possible to avoid or minimize whatever is making the browsers slow to build more efficient websites?

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  • How to access the SD card through my Sony Ericsson Xperia Arc Phone?

    - by user16364
    I have a Sony Ericsson Xperia Arc phone and I cannot access its SD card through the USB cable provided. I have set the USB connection mode to MSC yet when I connect the phone to my computer I cannot see the SD card (or anything for that matter). The Disk Utility however, does see an SEMC Mass Storage device but it says that no media was detected. I have validated that the SD card works as I removed it from the camera and plugged it into a card reader and saw all the photos and files stored on it. I have validated that the phone works as I have connected it (in MSC mode) to my wife's Windows 7 computer. Can anyone please tell me how I can access the SD card on my phone.

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  • Is there a way to send personal documents on Kindle for Mac app?

    - by Sid
    I have the Kindle App on my Mac, and an android phone. When I email documents to my [email protected] id, I am able to see it in my library, and subsequently send it to my Android device. However, I'm not able to send it to the Kindle App for my Mac. The Kindle for Mac FAQs clearly state that Magazines, personal documents, etc. are not supported. However, I came across here that there is a workaround to this, although I've not been able to figure out what it is.

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  • referral with regex for firefox?

    - by acidzombie24
    I am looking for a firefox referral plugin. I would like to be able to forge the referral name based on the pagename without extension. Such as http://site.com/page/abc.ANYTHING i need to set the referral as http://site.com/view/blah-abc-more.ext Does anyone know of a solution?

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  • Where actually did they spend money? [on hold]

    - by WannabeProgrammer
    I am a total beginner in the field of game development. Every time I saw or read an interview session with any indie developer they mention about the amount of money they spend on developing a game. I want to know where exactly did they spend the money ? Just imagine that you are making a game for mobile devices from scratch , where and all will you be spending your money to make one ? Is it possible to make games for mobile devices without spending any ? If yes , then it makes more sense for a indie game developer who is talented but comes from a very weak financial background. Thank you.

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  • Back button of Adobe PDF Reader after clicking a hyperlink whose target is on the same document

    - by artknish
    PDF documents have hyperlinks to the contents on the same document (analogous to "#section" hrefs for an HTML document). Where's the back button to go back to the page I was on (where I clicked the hyperlink). Let's say I'm on the index of a PDF tutorial, page 4, and I click on Chapter 2's hyperlink in the index that takes me to page 38. Now, if I want to go back to page 4 again, which button or shortcut should I use?

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  • Firefox: fast dictionary language switching

    - by Lo'oris
    I have two language dictionaries installed on Firefox 3.6, and I would like to be able to switch really fast between them, using the keyboard. At the moment the only way I know I can switch is right clicking in a text input field, go into Language, and then click the language. I would instead to be able to switch between those two just hitting two keys at most, if possible just one (something like F13). Searching for addons I've found tons of extensions somewhat related but that don't actually do what I want.

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  • Firefox: how to block cookies by name, not by site?

    - by deepc
    Firefox allows to block all cookies on a site-by-site level. This is ok for the most part. However, it does not help with blocking only Google Analytics cookies. The GA cookie names start with __ut. Is there a Firefox add-on which can block all __ut* cookies? I know there are many cookie related add-ons for Firefox - but apparently all of them simply fine tune cookie site-by-site blocking, according to their descriptions. Hopefully I missed the one who can do this... I also know about Google's plugin to opt out of analytics. Installing a specific plug-in for that purpose (as opposed to an add-on) seems a bit overdone. Plus, I would have to trust Google with that and that is exactly what I don't.

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  • Activity and View [closed]

    - by CYB
    Now, I'm going to create an app that can reserve something. There's three function like menu, reserve, and search. However, I don't know that I should create them as three Activities or just use three views as the function. I want to switch to other function by onclicklistener. Below is my onClickListener, private OnClickListener listener = new OnClickListener(){ public void onClick(View v) { switch(v.getId()){ case R.id.fuiButton1: break; case R.id.fuiButton2: break; case R.id.fuiButton3: break; } } }; Which is the best choice ?

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  • Data won't save to SQL database, getting error "close() was never explicitly called on database"

    - by SnowLeppard
    I have a save button in the activity where the user enters data which does this: String subjectName = etName.getText().toString(); String subjectColour = etColour.getText().toString(); SQLDatabase entrySubject = new SQLDatabase(AddSubject.this); entrySubject.open(); entrySubject.createSubjectEntry(subjectName, subjectColour); entrySubject.close(); Which refers to this SQL database class: package com.***.schooltimetable; import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; public class SQLDatabase { public static final String KEY_SUBJECTS_ROWID = "_id"; public static final String KEY_SUBJECTNAME = "name"; public static final String KEY_COLOUR = "colour"; private static final String DATABASE_NAME = "Database"; private static final String DATABASE_TABLE_SUBJECTS = "tSubjects"; private static final int DATABASE_VERSION = 1; private DbHelper ourHelper; private final Context ourContext; private SQLiteDatabase ourDatabase; private static class DbHelper extends SQLiteOpenHelper { public DbHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); // TODO Auto-generated constructor stub } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub db.execSQL("CREATE TABLE " + DATABASE_TABLE_SUBJECTS + " (" + KEY_SUBJECTS_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_SUBJECTNAME + " TEXT NOT NULL, " + KEY_COLOUR + " TEXT NOT NULL);"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // TODO Auto-generated method stub db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE_SUBJECTS); onCreate(db); } } public SQLDatabase(Context c) { ourContext = c; } public SQLDatabase open() throws SQLException { ourHelper = new DbHelper(ourContext); ourDatabase = ourHelper.getWritableDatabase(); return this; } public void close() { ourHelper.close(); } public long createSubjectEntry(String subjectName, String subjectColour) { // TODO Auto-generated method stub ContentValues cv = new ContentValues(); cv.put(KEY_SUBJECTNAME, subjectName); cv.put(KEY_COLOUR, subjectColour); return ourDatabase.insert(DATABASE_TABLE_SUBJECTS, null, cv); } public String[][] getSubjects() { // TODO Auto-generated method stub String[] Columns = new String[] { KEY_SUBJECTNAME, KEY_COLOUR }; Cursor c = ourDatabase.query(DATABASE_TABLE_SUBJECTS, Columns, null, null, null, null, null); String[][] Result = new String[1][]; // int iRow = c.getColumnIndex(KEY_LESSONS_ROWID); int iName = c.getColumnIndex(KEY_SUBJECTNAME); int iColour = c.getColumnIndex(KEY_COLOUR); for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) { Result[0][c.getPosition()] = c.getString(iName); Result[1][c.getPosition()] = c.getString(iColour); Settings.subjectCount = c.getPosition(); TimetableEntry.subjectCount = c.getPosition(); } return Result; } This class has other variables and other variations of the same methods for multiple tables in the database, i've cut out the irrelevant ones. I'm not sure what I need to close and where, I've got the entrySubject.close() in my activity. I used the methods for the database from the NewBoston tutorials. Can anyone see what I've done wrong, or where my problem is? Thanks.

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  • surfaceDestroyed called out of turn

    - by Avasulthiris
    I'm currently developing on minimum sdk version 3 (Android 1.5 - cupcake) and I'm having a strange unexplained issue that I have not been able to solve on my own. It is now becoming a rather urgent issue as I've already missed 1 deadline... I'm writing a high-level library to make long term android development easier and quicker. The one specific module has to capture images for a application... I've gotten everything right so far over the last couple months, except this one little thing and I don't know what to do any more: When I use the Camera object and implement a SurfaceHolder.Callback, the methods surfaceCreated() and surfaceChanged() are called one after the other. Then when the activity finishes, surfaceDestroyed() is called. This is how it should be, but when I stick the exact same code in my library (plain Java library that references the Android API - not in an activity), surfaceDestroyed() is called directly after created and changed. As a result - the camera object is closed before I can use it and the application force closes. What a pain. I can't do anything! This method call is controlled by the device.. Why does the surface close for no reason? Even when I post it to run on the activity thread through my own invokeAndWait(Runnable) method, like I do for many other things. I have 5 different working examples of different ways and implementations of capturing images in android but I still get the same issue when I plug it into my library. I don't understand what the difference is. The code is pretty much the same - and I post all the related code to the UI thread so its not a thread handling issue or anything like that. I've rewritten it about 20 times in different ways - same issue every time.. The only other way to approach it that I know of is creating a new Camera and setting it to the VideoView. The android source (c++ native code) however provides no Camera constructor, only an open() method which automatically forwards the camera's state to 'prepared' but I can only set the camera to the VideoView from the 'initialized' state. Pretty silly, I know, but there is no way around it unless I modify the Android library source code haha. not an option! The API does not allow for this method - you are expected to use it like my first example. So essentially - i just need to understand exactly why surfaceDestroyed() is called out of turn and if there is anything I can do to avoid it closing? If i can just understand the exact logic behind it and how it works! The documentation isn't much help! Secondly, if someone knows of any alternative ways to do it, as my second example, but hopefully one which the API actually allows for? haha Thanks guys. I would post code, but its fairly complicated, a couple thousand lines for this specific class and it would probably take a couple days to explain with all the threading and event listeners and what not. I just need help with this 1 single thing. Please let me know if you have any questions.

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  • Measuring Loading time of a web page (C#)

    - by j-t-s
    Hi All I would like to know if there is a simple way of measuring the time it takes from when you hit Enter, to the time where a web page is fully displayed/loaded. Would I need to use a Timer for this, or are there existing features built into the Web Browser control (or .net framework) that I have missed out on? Thank you

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  • Unbind Key Presses

    - by Doug
    I'm making a game that involves, like all games, key presses. Only left and right arrow and the Space Bar. They work, but the browser is pre-set to scroll left, right, or jump down on those keys. Is there any way to unbind those keys in the code? Thanks.

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  • gdata and Silverlight (crossdomain.xml)

    - by Larsi
    Hi! I'd like to access the the google calendar api from a Silverlight client. Problem is that there's no crossdomain or clientaccesspolicy that allows calls from my client at www.google.com/crossdomain.xml Question is: Will a call from a SL running out of browser, and in full trust still be classified as a crossdomain call? Are there any other ways to access the gdata from my SL client? (other than using the server as a proxy) Regards Larsi

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