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  • Sharing DefaultHttpClient in Android. To synchronize or not to synchronize?

    - by johnrock
    In an Android app, I am using one static instance of org.apache.http.impl.client.DefaultHttpClient and sharing that instance in all activities and services of the app, so that this client may be used to log in once to a remote server and all subsequent user requests to that remote server will remain authenticated. Every activity or Service that makes a GET or POST to this remote server calls the same method : MyUtilityClass.gettHttpClient() Do I need to worry about synchronization of this httpclient? If so, what is the best way to handle this?

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  • Split screen in iPad

    - by AAT
    I working on a iPAD only app which requires me to split the screen such a way that: (1) there are 2 parts on the screen divided vertically (2) On the left side, user can communicate using a chat (3) On the right side, user can see continuous streaming data I am not sure (A) how can I do two tasks simultaneously (B)how to split the screen (is Split view the way to achieve both of these?) Thank you.

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  • Force screen size when testing embedded DOS app in Windows 7 command window

    - by tomlogic
    I'm doing some embedded DOS development with OpenWatcom (great Windows-hosted compiler for targeting 16-bit DOS applications). The target hardware has a 24x16 character screen (that supposedly emulates CGA to some degree), and I'm trying to get the CMD.EXE window on my Windows 7 machine to stay at a fixed 24x16 without any scroll bars. I've used both the window properties and MODE CON: COLS=24 LINES=16 to get the screen size that I wanted, but as soon as my application uses an INT10 BIOS calls to clear the screen, the mode jumps back to 80x24. Here's what I'm using to clear the screen: void cls(void) { // Clear screen and reset cursor position to (0,0) union REGS regs; regs.w.cx = 0; // Upper left regs.w.dx = 0x1018; // Lower right (of 16x24) regs.h.bh = 7; // Blank lines attribute (white text on black) regs.w.ax = 0x0600; // 06 = scroll up, AL=00 to clear int86( 0x10, &regs, &regs ); } Any ideas? I can still do my testing at 80x24 (or 80x25), but it doesn't entirely behave like the 24x16 mode.

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  • Do I need a semaphore for my thread in Android/Java?

    - by Henrik
    Hello all, When running a thread in Android/Java: public void run() { while (running) { if (moreTasksToExec()) { task = getNextTask() task.exec(); } } } Is it OK to let it run and not using a semaphore to block while no work needs to be executed? I am only using one thread, so I need no inter-thread synchronization.

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  • debuging native code (C++) using gdb on android with Eclipse. Is it possible?

    - by noisy
    Hi, I have some piece of code which uses JNI. I can debug code wrote in Java directly in Eclipse (using ADT). I even have a script, which help me debug native code with gdb. However this is not very comfortable way for doing this. Is it possible to configure Eclipse to use gdb (I guess gdbserver) for debbuging android native applications? Do you know where I could find any description of this?

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  • What is the most secure encryption mode for Android?

    - by jax
    Currently I am using: Algorithm_mode_padding="RSA/ECB/PKCS1Padding" Provider="BC" I have heard that ECB can cause patterns in the output. What is the most secure Algorithm, mode and padding for Android at the moment? I will be using this for license files. Also, what is the best keysize to use when creating a new public and private key?

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  • managedQuery - trying to make 2 data points show when clicked

    - by fitz
    Here is what I have now: ListAdapter buildPhonesAdapter(Activity a) { String[] PROJECTION=new String[] { Contacts._ID, Contacts.DISPLAY_NAME, Phone.NUMBER, Email.DATA }; Cursor c=a.managedQuery(Phone.CONTENT_URI, PROJECTION, null, null, null); return(new SimpleCursorAdapter( a, android.R.layout.simple_list_item_2, c, new String[] { Contacts.DISPLAY_NAME, Phone.NUMBER, Email.DATA }, new int[] { android.R.id.text1, android.R.id.text2 })); } ListAdapter buildEmailAdapter(Activity a) { String[] PROJECTION=new String[] { Contacts._ID, Contacts.DISPLAY_NAME, Email.DATA }; Cursor c=a.managedQuery(Email.CONTENT_URI, PROJECTION, null, null, null); return(new SimpleCursorAdapter( a, android.R.layout.simple_list_item_2, c, new String[] { Contacts.DISPLAY_NAME, Email.DATA }, new int[] { android.R.id.text1, android.R.id.text2 })); } Need the 2 variables to show when cursor is picking this new option - I need Email.CONTENT_URI, and Phone.CONTENT_URI, to show when picked - I can get each one to show but need them both to show at same time.

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  • Android & Web: What is the equivalent style for the web?

    - by Legend
    I am quite impressed by the workflow I follow when developing Android applications: Define a layout in an xml file and then write all the code in a code-behind style. Is there an equivalent style for the web? I mean, with a predefined list of widgets that can be defined using a markup language and then control them using code? I have come across Google's Web Toolkit that does something like this but I'd like to hear what other's think as well.

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  • BitmapFactory.decodeResource returns null value

    - by krasnoff
    I am tring to load bitmaps from an internal resource in a View object (the source itself is in "drawable" files). the code is: import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.util.AttributeSet; import android.view.View; public class BannerView extends View { private Bitmap m_Banner = null; public BannerView(Context context, AttributeSet attributeSet) { super(context, attributeSet); m_Banner = BitmapFactory.decodeResource(getResources(), R.drawable.banner); } } Why m_Banner value is null? thank you in advance Kobi

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  • Blackberry screen navigation probelm

    - by dalandroid
    I have a Screen name DownloaderScreen when the screen start it will start download some file and when download is complete it will go forward to next screen autometically. I using the following code. public DownloaderScreen() { super(NO_VERTICAL_SCROLL | NO_HORIZONTAL_SCROLL | USE_ALL_HEIGHT | USE_ALL_WIDTH); this.application = UiApplication.getUiApplication(); HorizontalFieldManager outerBlock = new HorizontalFieldManager(USE_ALL_HEIGHT); VerticalFieldManager innerBlock = new VerticalFieldManager(USE_ALL_WIDTH | FIELD_VCENTER); innerBlock.setPadding(0, 10, 0, 10); outerBlock.setBackground(BackgroundFactory .createBitmapBackground(LangValue.dlBgimg)); outerBlock.add(innerBlock); add(outerBlock); phraseHelper = new PhraseHelper(); final String[][] phraseList = phraseHelper.getDownloadList(); gaugeField = new GaugeField("Downloading ", 0, phraseList.length, 0, GaugeField.PERCENT); innerBlock.add(gaugeField); Thread dlTread = new Thread() { public void run() { startDownload(phraseList); } }; dlTread.start(); } private void startDownload(String[][] phraseList){ if(phraseList.length!=0){ for(int i=0; i < phraseList.length ; i++){// gaugeField.setValue(i); // code for download } } goToNext(); } private void goToNext() { final Screen currentScreen = application.getActiveScreen(); if (UiApplication.isEventDispatchThread()) { application.popScreen(currentScreen); application.pushScreen(new HomeScreen()); } else { application.invokeLater(new Runnable() { public void run() { application.popScreen(currentScreen); application.pushScreen(new HomeScreen()); } }); } } The code is working fine and starts download files and when download is completed it is going forward to next screen. But when there is no file to download phraseList array length is zero, it is not going forward. What is problem in my code?

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