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  • What exactly are Link Relation Values?

    - by bckpwrld
    From REST in Practice: Hypermedia and Systems Architecture: For computer-to-computer interactions, we advertise protocol information by embedding links in representations, much as we do with the human Web. To describe a link's purpose, we annotate it. Annotations indicate what the linked resource means to the current resource: “status of your coffee order” “payment” and so on. We call such annotated links hypermedia controls, reflecting their enhanced capabilities over raw URIs. ... link relation values, which describe the roles of linked resources ... Link relation values help consumers understand why they might want to activate a hypermedia control. They do so by indicating the role of the linked resource in the context of the current representation. I interpret the above quotes as saying that Hypermedia control contains both a link to a resource and an annotation describing the role of linked resource in the context of the current representation. And we call this annotation ( which describes the role of linked resource ) a link relation value. Is my assumption correct or does the term link relation value actually describe something different? Thank you

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  • Need some critique on .NET/WCF SOA architecture plan

    - by user998101
    I am working on a refactoring of some services and would appreciate some critique on my general approach. I am working with three back-end data systems and need to expose an authenticated front-end API over http binding, JSON, and REST for internal apps as well as 3rd party integration. I've got a rough idea below that's a hybrid of what I have and where I intend to wind up. I intend to build guidance extensions to support this architecture so that devs can build this out quickly. Here's the current idea for our structure: Front-end WCF routing service (spread across multiple IIS servers via hardware load balancer) Load balancing of services behind routing is handled within routing service, probably round-robin One of the services will be a token Multiple bindings per-service exposed to address JSON, REST, and whatever else comes up later All in/out is handled via POCO DTOs Use unity to scan for what services are available and expose them The front-end services behind the routing service do nothing more than expose the API and do conversion of DTO<-Entity Unity inject service implementation to allow mocking automapper for DTO/Entity conversion Invoke WF services where response required immediately Queue to ESB for async WF -- ESB will invoke WF later Business logic WF layer Expose same api as front-end services Implement business logic Wrap transaction context where needed Call out to composite/atomic services Composite/Atomic Services Exposed as WCF One service per back-end system Standard atomic CRUD operations plus composite operations Supports transaction context The questions I have are: Are the separation of concerns outlined above beneficial? Current thought is each layer below is its own project, except the backend stuff, where each system gets one project. The project has a servicehost and all the services are under a services folder. Interfaces live in a separate project at each layer. DTO and Entities are in two separate projects under a shared folder. I am currently planning to build dedicated services for shared functionality such as logging and overload things like tracelistener to call those services. Is this a valid approach? Any other suggestions/comments?

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  • Best approach for tracking dependent state

    - by Pace
    Let's pretend I work on a project tracking application. The application is a database backed, server hosted, web application. In this application there are Projects which have many Activities which have many Tasks. A Task has two date fields an originalDueDate and a projectedDueDate. In addition, there are dynamic fields on the Activities and the Projects which indicate whether the Activity or Project is behind schedule based on the projected due dates of the child tasks and various other variables such as remaining buffer time, etc. There are a number of things that can cause the projectedDueDate to change. For example, an employee working on the project may (via a server request) enter in a shipping delay. Alternatively, a site may (via a server request) enter in an unexpected closure. When any of these things occur I need to not only update the projectedDueDate of the Task but also trigger the corresponding Project and Activity to update as well. What is the best way to do this? I've thought of the observer pattern but I don't keep a single copy of all these objects in memory. When a request comes in, I query the Task in from the database, at that point there is no associated Activity in memory that would be a listener. I could remove the ability to query for Tasks and force the application to query first by Project, then by Activity (in context of Project), then by task (in context of Activity) adding the observer relationships at each step but I'm not sure if that is the best way. I could setup a database event listening system so when a Task modified event is dispatched I have a handler which queries for the Activity at that point. I could simply setup a two-way relationship between Task and Activity so that the Task knows about the parent Activity and when the Task updates his state the Task grabs his parent and updates state. Right now I'm stuck considering all the options and am wondering if any single approach (doesn't have to be a listed approach) is jumping out at others as the best approach.

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  • Screen refresh/display problem in Xubuntu 14.04

    - by user286328
    I have just installed Xubuntu 14.04 as a dual boot on a desk top (Pentium R 4 CPU, 2.66 GHZ, 2G RAM) running XP home edition. In some situations when in Xubuntu I am having what seem to be screen refresh problems. When I open File Manager or Settings Manager the text names of various apps display but most of the icons do not. Moving the mouse over an app name generally causes the icon to appear, but it often vanishes once the mouse pointer is moved. This issue occurs irrespective of the view setting. Icons appear fine in the menu that comes up when I right click in the desktop, and in the menu that comes up when I click the mouse icon at top left. What I suspect is a related issue. In Abiword text sometimes fades, disappears or does not display immediately when I type, or text of the whole document fades. It then comes back or darkens if I left click a few times on the text. If I scroll through a document the text often fades and may remain faded until I left click a few times.

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  • Trouble installing from disk

    - by SuperNatural
    I'm writing this in desperation, Windows is slowly killing me and i need to change my home pc os to Ubuntu 11.04 as soon as possible. I created a USB flash drive to install ubuntu, twice, and both times they failed to begin install on restart of my pc. i read on another forum that you might have to change some boot sequence in BIOS but when pressing F2 to enter it didnt work. After a lot of cursing, I made myself an UBUNTU install cd and booted. To my excitement, it now displayed... try ubuntu and install ubuntu. i clicked install ubuntu which lead me to the preparing to install ubuntu display, i checked download updates while installing and clicked forward. The very next display is ' allocate drive space ' i assume there are meant to be options of drives provided but mine is just a blank box and underneath all the options to create a new partition table, add, change, delete and revert are all greyed out. There is a drop down menu labelled 'device for boot loader installlation' but the only option is /dev/sda. when i click install, a no root file system error comes up telling me to please correct from the partitioning menu. I am extremely frustrated. please!! can anyone help me...

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  • Website only displays correctly in IE using compatibility mode?

    - by user21318
    As the resident "IT Whiz" at work (ie: I know how to use a computer) I've been asked to develop a website for our small business. I've altered a wordpress theme for the time being and the company is very happy with the results. The only problem I am having with it at the moment is that for some reason the website does not display correctly and Internet Explorer unless I run it in Compatibility Mode. The main problem that I have is that my menu "slider" (it rotates pictures with links to articles etc) does not display at all, neither does the top menu they are just blink text based links. Even with Compatibility Mode enabled the slider and menus come back but the page is not centered unlike on both Firefox and Chrome. My googling has suggested the most common cause of this is old code but I'm not sure where to be looking. Is it likely in the css file or the actual php? Also any ideas on how to trouble shoot the cause of this? As in is there some dev tools or debugger I can use that would highlight "broken" code for me?

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  • How to undelete files in TFS

    - by Tarun Arora
    Have you accidently deleted files from TFS and are looking at a way to undelete the file? You don’t have to undo your previous check in to get the files back, there is a simpler way. 01 – View Deleted items in Team Explorer Have you been wondering how you can view deleted items in Team Explorer? Well, go to tools, options, Source Control. From Visual Studio Team Foundation check ‘show deleted items in the Source Control Explorer’.  02 – Undelete files from TFS Simply right click the deleted file or folder and from the context menu select ‘Undelete’. This will roll back the files to the version before the delete operation was committed on them.  The undeleted changes now show up as pending changes in your workspace. You need to right click the folder and select Check In Pending changes from the context menu to restore the files. Add a comment and check in the files back to TFS to undelete them Right click the folder and view history. You’ll see both the check in that deleted the file/folder and the check in that restored it. So, that’s how you can restoring deleted files in TFS… Nice and simple… Right?

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  • Battery life low on notebook using ubuntu 11.10 vs. windows 7

    - by les
    Im using a brand new Dell XPS notebook (bought mar 2012) which has 4.5 hrs battery life using a 6 cell battery-when i use windows 7. The machine uses an Intel core 17 2670qm processor, and a 64 bit operating system. I downloaded Ubuntu 11.10 and installed it on a USB drive, which is how i use it. I still have Windows 7 on the machine. When the machine is booting up I hit F12, and run Ubuntu from the flash drive instead of the machine booting Windows, as it normally would. On the Ubuntu menu, on the top right area, there is a battery menu, which shows how long to charge battery, or how much life left etc..with a fully charged battery the most Ubuntu will give me is 1.5 hrs. I've adjusted all power setting etc by clicking on the battery meter where i can make these adjustments, and have even turned down the brightness on the monitor. I've read through these questions here, and a user wrote to install Ubuntu 12(?)(the alpha version) when it's out this month(april), and this has better power management. Other forums (Ubuntu wiki) state that windows 7 controls power management effectively because it's configured to work with the hardware. I'd like to install Ubuntu and wipe windows but can't because of this issue. I need my notebook to go hours, not an hour and a bit. Can anybody recommend possibly a good software to use, that will work with the machines bios under Ubuntu? Another thought of mine, is- since I didn't yet wipe windows off my hard disk, is windows still possibly controlling the power mgmt aspect on the machine? I've thought of calling tech support at Dell and asking for help there, maybe Dell has something (a tweak?), I can download that'll work under Ubuntu. Looking forward to any help/suggestions i can get here, i'm really stuck on this..

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  • Gnome-shell partially freezes

    - by user568021
    My specs: Ubuntu 12.04.1 LTS, Gnome3, Dell Studio laptop This is not happening all the time, but only sometimes .. totally randomly. When I'm in the middle of some work something totally weird happens. Keyboard suddenly stops working. I can't type, no matter which key I press nothing happens. I can't press Alt+Tab, I can't press Alt+F4, Alt+F2... nothing. Activities button is dead. Also right click does not work...and something even more annoying. I can click on the 'menu' in the top right corner(the menu pops up), but clicking on 'power-off' or 'suspend' option doesn't do anything. The only little thing I can do is: Close the lid of my laptop so it goes to sleep. Than wake it up again. And than it's ok. Everything works. So I guess restarting (or refreshing) gnome-shell fixes the problem. Sorry if the title of this question is odd... I don't know how to properly describe this.

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  • What differences should I know? I just upgraded to 13.10 from 10.10 [on hold]

    - by test
    I ran Ubuntu 10.10 for a long time because I liked the menu style. The change in GUI with the upgrades drove me nuts but I finally gave in and downloaded Saucy Salamander 13.10 x64. It's a fresh install running as a virtual machine guest in VMWare Workstation 9 on a Windows 7 x64 host. Well it looks like all those icons are still there on the side which I would be OK with if there were some way to bring back my menus. I have no organized way of accessing things now, or do I? That is the purpose for this question, maybe there is some functionality I just can't find but is there. Also all my fine tuning was gone. I used to be able to change DPI but that's gone. I went ahead and installed Unity Tweak Tool via sudo apt-get install unity-tweak-tool but I couldn't find an icon for it after I installed it.. because again no menu. So I did a search for it and found it there. I've changed the font and which side the window buttons appear on which is good enough for now. Anyway... any suggestions you may have for me I'm game. I'm a Windows 7 user primarily but I use Ubuntu every once in a while. I really liked the old style where everything was categorized like for Applications there was Accessories, Games, Graphics, Internet, Office, Sound & Video, Wine.

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  • Django - no module named app

    - by Koran
    Hi, I have been trying to get an application written in django working - but it is not working at all. I have been working on for some time too - and it is working on dev-server perfectly. But I am unable to put in the production env (apahce). My project name is apstat and the app name is basic. I try to access it as following Blockquote http://hostname/apstat But it shows the following error: MOD_PYTHON ERROR ProcessId: 6002 Interpreter: 'domU-12-31-39-06-DD-F4.compute-1.internal' ServerName: 'domU-12-31-39-06-DD-F4.compute-1.internal' DocumentRoot: '/home/ubuntu/server/' URI: '/apstat/' Location: '/apstat' Directory: None Filename: '/home/ubuntu/server/apstat/' PathInfo: '' Phase: 'PythonHandler' Handler: 'django.core.handlers.modpython' Traceback (most recent call last): File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1537, in HandlerDispatch default=default_handler, arg=req, silent=hlist.silent) File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1229, in _process_target result = _execute_target(config, req, object, arg) File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1128, in _execute_target result = object(arg) File "/usr/lib/pymodules/python2.6/django/core/handlers/modpython.py", line 228, in handler return ModPythonHandler()(req) File "/usr/lib/pymodules/python2.6/django/core/handlers/modpython.py", line 201, in __call__ response = self.get_response(request) File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py", line 134, in get_response return self.handle_uncaught_exception(request, resolver, exc_info) File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py", line 154, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/lib/pymodules/python2.6/django/views/debug.py", line 40, in technical_500_response html = reporter.get_traceback_html() File "/usr/lib/pymodules/python2.6/django/views/debug.py", line 114, in get_traceback_html return t.render(c) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 178, in render return self.nodelist.render(context) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 779, in render bits.append(self.render_node(node, context)) File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 81, in render_node raise wrapped TemplateSyntaxError: Caught an exception while rendering: No module named basic Original Traceback (most recent call last): File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 71, in render_node result = node.render(context) File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 87, in render output = force_unicode(self.filter_expression.resolve(context)) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 572, in resolve new_obj = func(obj, *arg_vals) File "/usr/lib/pymodules/python2.6/django/template/defaultfilters.py", line 687, in date return format(value, arg) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 269, in format return df.format(format_string) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 30, in format pieces.append(force_unicode(getattr(self, piece)())) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 175, in r return self.format('D, j M Y H:i:s O') File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 30, in format pieces.append(force_unicode(getattr(self, piece)())) File "/usr/lib/pymodules/python2.6/django/utils/encoding.py", line 71, in force_unicode s = unicode(s) File "/usr/lib/pymodules/python2.6/django/utils/functional.py", line 201, in __unicode_cast return self.__func(*self.__args, **self.__kw) File "/usr/lib/pymodules/python2.6/django/utils/translation/__init__.py", line 62, in ugettext return real_ugettext(message) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 286, in ugettext return do_translate(message, 'ugettext') File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 276, in do_translate _default = translation(settings.LANGUAGE_CODE) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 194, in translation default_translation = _fetch(settings.LANGUAGE_CODE) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 180, in _fetch app = import_module(appname) File "/usr/lib/pymodules/python2.6/django/utils/importlib.py", line 35, in import_module __import__(name) ImportError: No module named basic My settings.py is as follows: INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'apstat.basic', 'django.contrib.admin', ) If I remove the apstat.basic, it goes through, but that is not a solution. Is it something I am doing in apache? My apache - settings are - <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /home/ubuntu/server/ <Directory /> Options None AllowOverride None </Directory> <Directory /home/ubuntu/server/apstat> AllowOverride None Order allow,deny allow from all </Directory> <Location "/apstat"> SetHandler python-program PythonHandler django.core.handlers.modpython SetEnv DJANGO_SETTINGS_MODULE apstat.settings PythonOption django.root /home/ubuntu/server/ PythonDebug On PythonPath "['/home/ubuntu/server/'] + sys.path" </Location> </VirtualHost> I have now sat for more than a day on this. If someone can help me out, it would be very nice.

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  • UI android question/problem with Listview

    - by user309554
    Hi, I'm trying to recreate the UI screen called 'My Places' that is used in the Weather Channel app. I'd attach a screenshot of the screen, but I can't seem to do it here. It seems they're using two listviews one on top of the other, but I'm not sure for certain. Could anybody confirm this for me? If they are doing this, how is this done? I've tried to implement this, but without full success. My top listview 'Add a place' 'comes up correctly, but the bottom listview will not appear/populate for me? I shall attach my code so far...... Any help would be greatly appreciated. Thanks Simon header_row.xml ?xml version="1.0" encoding="utf-8"? LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="6dip" android:src="@drawable/ic_menu_add" / LinearLayout android:orientation="vertical" android:layout_width="0dip" android:layout_weight="1" android:layout_height="fill_parent" TextView android:id="@+id/caption" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" android:gravity="center_vertical" android:text="Add a place"/ /LinearLayout /LinearLayout main.xml ?xml version="1.0" encoding="utf-8"? LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:padding="6dip" ListView android:id="@+id/header" android:layout_width="wrap_content" android:layout_height="wrap_content"/ LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" ListView android:id="@+id/list" android:layout_width="fill_parent" android:layout_height="wrap_content"/ /LinearLayout /LinearLayout public class ListViewTest extends Activity { private static String[] items={"lorem", "ipsum", "dolor", "sit", "amet", "consectetuer", "adipiscing", "elit", "morbi", "vel", "ligula", "vitae", "arcu", "aliquet", "mollis", "etiam", "vel", "erat", "placerat", "ante", "porttitor", "sodales", "pellentesque", "augue", "purus"}; private ListView Header; private ListView List; private ArrayList caption = null; private CaptionAdapter adapter; private ArrayAdapter listAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); caption = new ArrayList(); Caption cap = new Caption(); cap.setCaption("Add a place"); caption.add(cap); this.adapter = new CaptionAdapter(this, R.layout.header_row, caption); Header = (ListView) findViewById(R.id.header); Header.setAdapter(adapter); //Log.d("ListViewTest", "caption size is:" + caption.size()); adapter.notifyDataSetChanged(); List = (ListView) findViewById(R.id.list); listAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, items); List.setAdapter(listAdapter); listAdapter.notifyDataSetChanged(); //setListAdapter(new ArrayAdapter(this, //android.R.layout.simple_list_item_1, //items)); } private class CaptionAdapter extends ArrayAdapter { private ArrayList caption; public CaptionAdapter(Context context, int textViewResourceId, ArrayList caption) { super(context, textViewResourceId, caption); this.caption = caption; } @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(R.layout.header_row, null); } Caption c = caption.get(position); if (c != null) { TextView caption = (TextView) v.findViewById(R.id.caption); if (caption != null) { caption.setText(c.getCaption()); } } return v; } } }

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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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  • Android How do i overwrite the filter for my ArrayAdapter?

    - by alan
    Hey guys my first post here... Im trying to write a custom filter to filter the arraylist in my arrayadapter such that my listview is filtered when i click on the button. For instance when i click on my button public void onClick(View arg0) { String abc = "abc"; m_adapter.getFilter().filter(abc); } However, when i click on my button, my app terminate unexpectedly. Here is my code for the arrayadapter and filter. Please help me. package com.ntu.rosemobile.searchlist; public class ResultsAdapter extends ArrayAdapter<SearchItem> implements Filterable{ public ArrayList<SearchItem> subItems; public ArrayList<SearchItem> allItems; private LayoutInflater inflater; private PTypeFilter filter; public ResultsAdapter(Context context, int textViewResourceId, ArrayList<SearchItem> items) { super(context, textViewResourceId, items); this.subItems = items; this.allItems = this.subItems; inflater= LayoutInflater.from(context); } @Override public Filter getFilter() { if (filter == null){ filter = new PTypeFilter(); } return filter; } //@Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { v = inflater.inflate(R.layout.listrow, null); } SearchItem o = subItems.get(position); if (o != null) { TextView pname = (TextView) v.findViewById(R.id.productname); TextView neg = (TextView) v.findViewById(R.id.negNum); TextView pos = (TextView) v.findViewById(R.id.posNum); TextView neu = (TextView) v.findViewById(R.id.neuNum); WebImageView productPhoto = (WebImageView)v.findViewById(R.id.pPhoto); if(productPhoto!=null){ productPhoto.setImageUrl(o.getImageUrl().toString()); productPhoto.loadImage(); } if(pname!= null){ pname.setText(o.getProductName().toString()); } if (neg != null) { String a = "" + o.getNegativeReviews(); neg.setText(a); } if(neu != null){ String a = "" + o.getNeutralReviews(); neu.setText(a); } if(pos != null){ String a = "" + o.getPositiveReviews(); pos.setText(a); } } return v; } private class PTypeFilter extends Filter{ @SuppressWarnings("unchecked") @Override protected void publishResults(CharSequence prefix, FilterResults results) { // NOTE: this function is *always* called from the UI thread. subItems = (ArrayList<SearchItem>)results.values; notifyDataSetChanged(); } @SuppressWarnings("unchecked") protected FilterResults performFiltering(CharSequence prefix) { // NOTE: this function is *always* called from a background thread, and // not the UI thread. FilterResults results = new FilterResults(); ArrayList<SearchItem> i = new ArrayList<SearchItem>(); if (prefix!= null && prefix.toString().length() > 0) { for (int index = 0; index < allItems.size(); index++) { SearchItem si = allItems.get(index); if(si.getPType().compareTo(prefix.toString()) == 0){ i.add(si); } } results.values = i; results.count = i.size(); } else{ synchronized (allItems){ results.values = allItems; results.count = allItems.size(); } } return results; } } }

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  • ListView items not responding to tap

    - by Justin Williams
    I'm just getting my feet wet with Android and have built a UI that contains a TabHost with three tabs. Each tab is powered by its own Activity. The first Tab contains a listview with a prepopulated set of rows and is built from a custom ArrayAdapter. The problem I'm running into is that none of the ListView rows are tappable. In other words, when I tap on them there is no orange selection. If I use the scroll ball on my Nexus One it will select, but any touch gestures don't seem to be responding. All the UI is being handled using XML files with a main.xml housing the TabHost - LinearLayout - TabWidget/FrameLayout and a nearby_activity.xml file containing my ListView UI <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:id="@+id/android:empty" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="@string/nearby_no_events" /> <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1.0" android:choiceMode="multipleChoice" android:divider="#d9d9d9" android:dividerHeight="1px" android:cacheColorHint="#eee" /> </LinearLayout> And the relevant code from my Activity that is set to show in the selected tab. public class NearbyActivity extends ListActivity { private ArrayList<Event> m_events = null; private EventAdapter m_adapter = null; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.nearby_activity); getEvents(); this.m_adapter = new EventAdapter(this, R.layout.eventrow, m_events); setListAdapter(this.m_adapter); } private void getEvents() { m_events = new ArrayList<Event>(); for (int i = 0; i < 100 ; i++) { Event e = new Event(); e.setEventName("Event " + i); e.setVenueName("Staples Center"); e.setStartDate(new Date()); m_events.add(e); } } private class EventAdapter extends ArrayAdapter<Event> { private ArrayList<Event> items; public EventAdapter(Context context, int textViewResourceId, ArrayList<Event> items) { super(context, textViewResourceId, items); this.items = items; } @Override public View getView (int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(R.layout.eventrow, null); } Event e = items.get(position); if (e != null) { TextView nameText = (TextView)v.findViewById(R.id.eventName); TextView venueNameText = (TextView)v.findViewById(R.id.venueName); if (nameText != null) { nameText.setText(e.getEventName()); } if(venueNameText != null) { venueNameText.setText(e.getVenueName()); } } return v; } } } My listview row's are populated by an XML file as well. <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:orientation="vertical" android:padding="4dip"> <TextView android:id="@+id/eventName" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:inputType="text" android:singleLine="true" android:ellipsize="marquee" android:textSize="18sp" android:textColor="#000" /> <TextView android:id="@+id/venueName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/eventName" android:layout_alignParentBottom="true" android:layout_marginRight="55dip" android:singleLine="true" android:ellipsize="end" android:scrollHorizontally="true" android:textSize="13sp" android:textColor="#313131" android:layout_alignWithParentIfMissing="true" android:gravity="center_vertical" /> </RelativeLayout> Thanks for any help you can offer.

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  • How do I load an image from sd card into coverview

    - by Jolene
    I am doing an application which consists of a cover flow. Currently I am trying to make the cover flow images be obtained from the sd card. But I am not exactly sure how should I display the image. this is the image adapter: public class ImageAdapter extends BaseAdapter { int mGalleryItemBackground; private Context mContext; private FileInputStream fis; private Integer[] mImageIds = { //Instead of using r.drawable, i need to load the images from my sd card instead R.drawable.futsing, R.drawable.futsing2 }; private ImageView[] mImages; public ImageAdapter(Context c) { mContext = c; mImages = new ImageView[mImageIds.length]; } public int getCount() { return mImageIds.length; } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } @TargetApi(8) public View getView(int position, View convertView, ViewGroup parent) { int screenSize = getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK; ImageView i = new ImageView(mContext); i.setImageResource(mImageIds[position]); switch(screenSize) { case Configuration.SCREENLAYOUT_SIZE_XLARGE: //Toast.makeText(this, "Small screen",Toast.LENGTH_LONG).show(); Display display4 = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay(); int rotation4 = display4.getRotation(); Log.d("XLarge:",String.valueOf(rotation4)); /** LANDSCAPE **/ if(rotation4 == 0 || rotation4 == 2) { i.setLayoutParams(new CoverFlow.LayoutParams(300, 300)); i.setScaleType(ImageView.ScaleType.CENTER_INSIDE); BitmapDrawable drawable = (BitmapDrawable) i.getDrawable(); drawable.setAntiAlias(true); return i; } /** PORTRAIT **/ else if (rotation4 == 1 || rotation4 == 3) { i.setLayoutParams(new CoverFlow.LayoutParams(650, 650)); i.setScaleType(ImageView.ScaleType.CENTER_INSIDE); BitmapDrawable drawable = (BitmapDrawable) i.getDrawable(); drawable.setAntiAlias(true); return i; } break; default: } return null; } /** Returns the size (0.0f to 1.0f) of the views * depending on the 'offset' to the center. */ public float getScale(boolean focused, int offset) { /* Formula: 1 / (2 ^ offset) */ return Math.max(0, 1.0f / (float)Math.pow(2, Math.abs(offset))); } } and this is how i download and save the file. I need to use the image saved and upload it into my coverflow // IF METHOD TO DOWNLOAD IMAGE void downloadFile() { new Thread(new Runnable(){ // RUN IN BACKGROUND THREAD TO AVOID FREEZING OF UI public void run(){ Bitmap bmImg; URL myFileUrl = null; try { //for (int i = 0; i < urlList.size(); i ++) //{ //url = urlList.get(i); myFileUrl = new URL("http://static.adzerk.net/Advertisers/d18eea9d28f3490b8dcbfa9e38f8336e.jpg"); // RETRIEVE IMAGE URL //} } catch (MalformedURLException e) { e.printStackTrace(); } try { HttpURLConnection conn = (HttpURLConnection) myFileUrl.openConnection(); conn.setDoInput(true); conn.connect(); InputStream in = conn.getInputStream(); Log.i("im connected", "Download"); bmImg = BitmapFactory.decodeStream(in); saveFile(bmImg); } catch (IOException e) { e.printStackTrace(); }} }).start(); // START THREAD } // SAVE THE IMAGE AS JPG FILE private void saveFile(Bitmap bmImg) { File filename; try { // GET EXTERNAL STORAGE, SAVE FILE THERE File storagePath = new File(Environment.getExternalStorageDirectory(),"Covers"); storagePath.mkdirs(); filename = new File(storagePath + "/image.jpg"); FileOutputStream out = new FileOutputStream(filename); bmImg.compress(Bitmap.CompressFormat.JPEG, 90, out); out.flush(); out.close(); MediaStore.Images.Media.insertImage(getContentResolver(),filename.getAbsolutePath(), filename.getName(), filename.getName()); // ONCE THE DOWNLOAD FINISHES, CLOSE DIALOG Toast.makeText(getApplicationContext(), "Image Saved!", Toast.LENGTH_SHORT).show(); } catch (Exception e) { e.printStackTrace(); } }

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  • StaleDataException: access closed cursor

    - by Aurora
    In my application, after enough clicking around, I get this error: 06-08 19:47:59.967: ERROR/AndroidRuntime(2429): java.lang.RuntimeException: Unable to pause activity {com.MYAPP.app/com.MYAPP.app.MainActivity}: android.database.StaleDataException: Access closed cursor What I have is a Tab Activity (my MainActivity), which has a ListActivity as the contents for each tab. Inside the onCreate for each ListActivity I get a cursor that represents the data to be displayed in that list. The onListItemClick for each list also creates another activity, so clicking on an item in the list will show more information about that item in a new screen. It's inconsistent, but after enough clicking into these new activities, or going back to the ListView from a new activity, the program crashes. In searching around for a solution to my problem, I did stumble upon registerDataSetObserver, but it doesn't seem to be the whole answer. I am also having trouble finding documentation on it, so I'm not sure I fully understand it. I have a custom ListAdapter that both my ListViews use and have called registerDataSetObservers on the cursors there. I have attached the relevant code from one of my ListActivities and from my custom ListAdapter class. The ListActivity. I have two of these, almost identical, except they both have different cursors created from different database queries: import com.MYAPP.app.listmanager.DeviceListAdapter; public class AllSensorsActivity extends ListActivity{ private DeviceListAdapter AllList; private DbManager db; protected Cursor AllCur; protected Cursor AllSensors; private static final String TAG = "AllSensorsActivity"; @Override public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); Log.e(TAG, "Calling All onCreate"); db = new DbManager(this); db.open(); AllCur = db.fetchAllDevices(); startManagingCursor(AllCur); AllSensors = db.fetchAllSensors(); startManagingCursor(AllSensors); AllList = new DeviceListAdapter(this, AllCur, AllSensors); setListAdapter(AllList); } @Override protected void onListItemClick(ListView l, View v, int position, long id){ String device_name = (String) ((DeviceListAdapter)getListAdapter()).getItem(position); String sensor_string = ((DeviceListAdapter)getListAdapter()).getSensors(id); Intent i = new Intent(this, SensorActivity.class); Bundle bundle = new Bundle(); bundle.putString("NAME", device_name); i.putExtras(bundle); bundle.putString("SENSORS", sensor_string); i.putExtras(bundle); this.startActivity(i); } The custom ListAdapter: public class DeviceListAdapter extends BaseAdapter { private static final String TAG = "DeviceListAdapter"; private Context mContext; private Cursor mSensors; private Cursor mDevices; protected MyDataSetObserver sensors_observer; protected MyDataSetObserver devices_observer; public DeviceListAdapter(Context context, Cursor devices, Cursor sensors){ mContext = context; mDevices = devices; mSensors = sensors; sensors_observer = new MyDataSetObserver(); mSensors.registerDataSetObserver(sensors_observer); devices_observer = new MyDataSetObserver(); mDevices.registerDataSetObserver(devices_observer); } // ... more functions and stuff that are not relevant go down here... } private class MyDataSetObserver extends DataSetObserver { public void onChanged(){ Log.e(TAG, "CHANGED CURSOR!"); } public void onInvalidated(){ Log.e(TAG, "INVALIDATED CURSOR!"); } } Should I just have MyDataSetObserver catch the exception and move on? I'd like a more robust solution than that if possible. Or is there some other way I could rearrange my program so that the staleDataException doesn't occur (as often)? I believe that it is happening because I am launching the new activity in my onListItemClick.

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  • Android: Get the X and Y coordinates of a TextView?

    - by Jep Knopz
    I am working now on a project. I have 2 draggable textView in a circle. I want to add those value inside the circle when the circle is drag over the other circle. the first option that I have is to get the X and Y of the circle, but I get it. Can anyone fix my code? Here is the Code: MainActivity public class MainActivity extends Activity { int windowwidth; int windowheight; TextView bola; TextView bola2; private float x; private float y; private android.widget.RelativeLayout.LayoutParams layoutParams; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); windowwidth = getWindowManager().getDefaultDisplay().getWidth(); windowheight = getWindowManager().getDefaultDisplay().getHeight(); bola = (TextView) findViewById(R.id.ball); bola2 = (TextView) findViewById(R.id.ball2); bola2.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub layoutParams = (RelativeLayout.LayoutParams) bola2 .getLayoutParams(); switch (event.getActionMasked()) { case MotionEvent.ACTION_DOWN: break; case MotionEvent.ACTION_MOVE: int x_cord = (int) event.getRawX(); int y_cord = (int) event.getRawY(); if (x_cord > windowwidth) { x_cord = windowwidth; } if (y_cord > windowheight) { y_cord = windowheight; } layoutParams.leftMargin = x_cord - 25; layoutParams.topMargin = y_cord - 75; bola2.setLayoutParams(layoutParams); break; default: break; } return true; } }); bola.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { layoutParams = (RelativeLayout.LayoutParams) bola .getLayoutParams(); switch (event.getActionMasked()) { case MotionEvent.ACTION_DOWN: break; case MotionEvent.ACTION_MOVE: int x_cord = (int) event.getRawX(); int y_cord = (int) event.getRawY(); if (x_cord > windowwidth) { x_cord = windowwidth; } if (y_cord > windowheight) { y_cord = windowheight; } layoutParams.leftMargin = x_cord - 25; layoutParams.topMargin = y_cord - 75; bola.setLayoutParams(layoutParams); break; default: break; } // TODO Auto-generated method stub return true; } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; }} Activity_main.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" > <TextView android:id= "@+id/ball" android:background="@drawable/bgshape" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="1" tools:context=".MainActivity" /> <TextView android:id= "@+id/ball2" android:background="@drawable/bgshape" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="2" tools:context=".MainActivity" android:layout_x="60dp" android:layout_y="20dp" /> The bgshape.xml(for the circle) <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" > <padding android:bottom="20dp" android:left="25dp" android:right="25dp" android:top="20dp" /> <stroke android:width="2dp" android:color="#000000" /> <solid android:color="#ffffff" /> <corners android:bottomLeftRadius="30dp" android:bottomRightRadius="30dp" android:topLeftRadius="30dp" android:topRightRadius="30dp" /> This code works well. Could anyone fix this so that I can add the value inside the circle when they hit each other?

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  • java-eclipse-jsf -404 error

    - by ognistysztorm
    I am trying to create my first project in JSF (Eclipse Juno). I have only one jsp file witch contain: <?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:ui="http://java.sun.com/jsf/facelets"> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /> <title>Insert title here</title> </head> <body> <f:view> <ui:component>Hello World</ui:component> </f:view> </body> </html> ...but when I try run it on server I receiving 404 error. I add jsf.jar and jstl.jar to my bulid path. this is web.xml: <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name>inwert</display-name> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>/faces/*</url-pattern> </servlet-mapping> <context-param> <description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description> <param-name>javax.faces.STATE_SAVING_METHOD</param-name> <param-value>client</param-value> </context-param> <context-param> <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name> <param-value>resources.application</param-value> </context-param> <listener> <listener-class>com.sun.faces.config.ConfigureListener</listener-class> </listener> </web-app> After 3 Hours I give up :( Could anyone help me?

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  • Background changes by itself and procedure repeats many times until I release the mouse button

    - by Robert
    Dear community, I am a student, and I'm working on a little slots game (if the same random number comes up 3 timed, you win). I use Borland Pascal 7. I use graph to make this a bit more visual, but when I start the game my background turns from black to grey, and the other problem is that if I click the game start button, the game runs many times until I release the mouse button. How can I solve this? Here is my full program: program slots; uses mymouse,graph,crt; var gdriver,gmode,coin:integer; m:mouserec; a,b,c,coins:string; procedure gomb(x1,y1,x2,y2:integer;szoveg:string); var j,n:integer; begin setcolor(blue); rectangle(x1,y1,x2,y2); setfillstyle(1,blue); floodfill(x1+2,y1+2,blue); setcolor(0); outtextxy((x1+x2)div 2 -textwidth(szoveg) div 2 ,(y1+y2) div 2-textheight(szoveg) div 2,szoveg); end; procedure randomal(var a,b,c:string); begin randomize; STR(random(2)+1,a); STR(random(2)+1,b); STR(random(2)+1,c); end; procedure menu; begin; settextstyle(0,0,1); outtextxy(20,10,'Meno menu'); gomb(20,20,90,50,'Teglalap'); gomb(20,60,90,90,'Inditas'); gomb(20,100,90,130,'Harmadik'); gomb(20,140,90,170,'Negyedik'); end; procedure teglalap(x1,x2,y1,y2,tinta:integer); begin setcolor(tinta); rectangle(x1,x2,y1,y2); end; procedure jatek(var a,b,c:string;var coin:integer;coins:string); begin; clrscr; menu; randomal(a,b,c); if ((a=b) AND (b=c)) then coin:=coin+1 else coin:=coin-1; settextstyle(0,0,3); setbkcolor(black); outtextxy(200,20,a); outtextxy(240,20,b); outtextxy(280,20,c); STR(coin,coins); outtextxy(400,400,coins); end; procedure eger; begin; mouseinit; mouseon; menu; repeat getmouse(m); if (m.left) and (m.x20) ANd (m.x<90) and (m.y20) and (m.y<50) then teglalap(90,90,300,300,blue); if (m.left) and (m.x20) AND (m.x<90) and (m.y60) and (m.y<90) then jatek(a,b,c,coin,coins); until ((m.left) and (m.x20) ANd (m.x<140) and (m.y140) and (m.y<170)); end; begin coin:=50; gdriver:=detect; initgraph(gdriver, gmode, ''); eger; end. Thank you very much, Robert

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  • Call an member function implementing the {{#linkTo ...}} helper from javascript code

    - by gonvaled
    I am trying to replace this navigation menu: <nav> {{#linkTo "nodes" }}<i class="icon-fixed-width icon-cloud icon-2x"></i>&nbsp;&nbsp;{{t generic.nodes}} {{grayOut "(temporal)"}}{{/linkTo}} {{#linkTo "services" }}<i class="icon-fixed-width icon-phone icon-2x"></i>&nbsp;&nbsp;{{t generic.services}}{{/linkTo}} {{#linkTo "agents" }}<i class="icon-fixed-width icon-headphones icon-2x"></i>&nbsp;&nbsp;{{t generic.agents}}{{/linkTo}} {{#linkTo "extensions" }}<i class="icon-fixed-width icon-random icon-2x"></i>&nbsp;&nbsp;{{t generic.extensions}}{{/linkTo}} {{#linkTo "voiceMenus" }}<i class="icon-fixed-width icon-sitemap icon-2x"></i>&nbsp;&nbsp;{{t generic.voicemenus}}{{/linkTo}} {{#linkTo "queues" }}<i class="icon-fixed-width icon-tasks icon-2x"></i>&nbsp;&nbsp;{{t generic.queues}}{{/linkTo}} {{#linkTo "contacts" }}<i class="icon-fixed-width icon-user icon-2x"></i>&nbsp;&nbsp;{{t generic.contacts}}{{/linkTo}} {{#linkTo "accounts" }}<i class="icon-fixed-width icon-building icon-2x"></i>&nbsp;&nbsp;{{t generic.accounts}}{{/linkTo}} {{#linkTo "locators" }}<i class="icon-fixed-width icon-phone-sign icon-2x"></i>&nbsp;&nbsp;{{t generic.locators}}{{/linkTo}} {{#linkTo "phonelocations" }}<i class="icon-fixed-width icon-globe icon-2x"></i>&nbsp;&nbsp;{{t generic.phonelocations}}{{/linkTo}} {{#linkTo "billing" }}<i class="icon-fixed-width icon-euro icon-2x"></i>&nbsp;&nbsp;{{t generic.billing}}{{/linkTo}} {{#linkTo "profile" }}<i class="icon-fixed-width icon-cogs icon-2x"></i>&nbsp;&nbsp;{{t generic.profile}}{{/linkTo}} {{#linkTo "audio" }}<i class="icon-fixed-width icon-music icon-2x"></i>&nbsp;&nbsp;{{t generic.audio}}{{/linkTo}} {{#linkTo "editor" }}<i class="icon-fixed-width icon-puzzle-piece icon-2x"></i>&nbsp;&nbsp;{{t generic.node_editor}}{{/linkTo}} </nav> With a more dynamic version. What I am trying to do is to reproduce the html inside Ember.View.render, but I would like to reuse as much Ember functionality as possible. Specifically, I would like to reuse the {{#linkTo ...}} helper, with two goals: Reuse existing html rendering implemented in the {{#linkTo ...}} helper Get the same routing support that using the {{#linkTo ...}} in a template provides. How can I call this helper from within javascript code? This is my first (incomplete) attempt. The template: {{view SettingsApp.NavigationView}} And the view: var trans = Ember.I18n.t; var MAIN_MENU = [ { 'linkTo' : 'nodes', 'i-class' : 'icon-cloud', 'txt' : trans('generic.nodes') }, { 'linkTo' : 'services', 'i-class' : 'icon-phone', 'txt' : trans('generic.services') }, ]; function getNavIcon (data) { var linkTo = data.linkTo, i_class = data['i-class'], txt = data.txt; var html = '<i class="icon-fixed-width icon-2x ' + i_class + '"></i>&nbsp;&nbsp;' + txt; return html; } SettingsApp.NavigationView = Ember.View.extend({ menu : MAIN_MENU, render: function(buffer) { for (var i=0, l=this.menu.length; i<l; i++) { var data = this.menu[i]; // TODO: call the ember function implementing the {{#linkTo ...}} helper buffer.push(getNavIcon(data)); } return buffer; } });

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  • calling calloc - memory leak valgrind

    - by Mike
    The following code is an example from the NCURSES menu library. I'm not sure what could be wrong with the code, but valgrind reports some problems. Any ideas... ==4803== 1,049 (72 direct, 977 indirect) bytes in 1 blocks are definitely lost in loss record 25 of 36 ==4803== at 0x4C24477: calloc (vg_replace_malloc.c:418) ==4803== by 0x400E93: main (in /home/gerardoj/a.out) ==4803== ==4803== LEAK SUMMARY: ==4803== definitely lost: 72 bytes in 1 blocks ==4803== indirectly lost: 977 bytes in 10 blocks ==4803== possibly lost: 0 bytes in 0 blocks ==4803== still reachable: 64,942 bytes in 262 blocks Source code: #include <curses.h> #include <menu.h> #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) #define CTRLD 4 char *choices[] = { "Choice 1", "Choice 2", "Choice 3", "Choice 4", "Choice 5", "Choice 6", "Choice 7", "Exit", } ; int main() { ITEM **my_items; int c; MENU *my_menu; int n_choices, i; ITEM *cur_item; /* Initialize curses */ initscr(); cbreak(); noecho(); keypad(stdscr, TRUE); /* Initialize items */ n_choices = ARRAY_SIZE(choices); my_items = (ITEM **)calloc(n_choices + 1, sizeof(ITEM *)); for (i = 0; i < n_choices; ++i) { my_items[i] = new_item(choices[i], choices[i]); } my_items[n_choices] = (ITEM *)NULL; my_menu = new_menu((ITEM **)my_items); /* Make the menu multi valued */ menu_opts_off(my_menu, O_ONEVALUE); mvprintw(LINES - 3, 0, "Use <SPACE> to select or unselect an item."); mvprintw(LINES - 2, 0, "<ENTER> to see presently selected items(F1 to Exit)"); post_menu(my_menu); refresh(); while ((c = getch()) != KEY_F(1)) { switch (c) { case KEY_DOWN: menu_driver(my_menu, REQ_DOWN_ITEM); break; case KEY_UP: menu_driver(my_menu, REQ_UP_ITEM); break; case ' ': menu_driver(my_menu, REQ_TOGGLE_ITEM); break; case 10: { char temp[200]; ITEM **items; items = menu_items(my_menu); temp[0] = '\0'; for (i = 0; i < item_count(my_menu); ++i) if(item_value(items[i]) == TRUE) { strcat(temp, item_name(items[i])); strcat(temp, " "); } move(20, 0); clrtoeol(); mvprintw(20, 0, temp); refresh(); } break; } } free_item(my_items[0]); free_item(my_items[1]); free_menu(my_menu); endwin(); }

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  • MVC SiteMap - when different nodes point to same action SiteMap.CurrentNode does not map to the correct route

    - by awrigley
    Setup: I am using ASP.NET MVC 4, with mvcSiteMapProvider to manage my menus. I have a custom menu builder that evaluates whether a node is on the current branch (ie, if the SiteMap.CurrentNode is either the CurrentNode or the CurrentNode is nested under it). The code is included below, but essentially checks the url of each node and compares it with the url of the currentnode, up through the currentnodes "family tree". The CurrentBranch is used by my custom menu builder to add a class that highlights menu items on the CurrentBranch. The Problem: My custom menu works fine, but I have found that the mvcSiteMapProvider does not seem to evaluate the url of the CurrentNode in a consistent manner: When two nodes point to the same action and are distinguished only by a parameter of the action, SiteMap.CurrentNode does not seem to use the correct route (it ignores the distinguishing parameter and defaults to the first route that that maps to the action defined in the node). Example of the Problem: In an app I have Members. A Member has a MemberStatus field that can be "Unprocessed", "Active" or "Inactive". To change the MemberStatus, I have a ProcessMemberController in an Area called Admin. The processing is done using the Process action on the ProcessMemberController. My mvcSiteMap has two nodes that BOTH map to the Process action. The only difference between them is the alternate parameter (such are my client's domain semantics), that in one case has a value of "Processed" and in the other "Unprocessed": Nodes: <mvcSiteMapNode title="Process" area="Admin" controller="ProcessMembers" action="Process" alternate="Unprocessed" /> <mvcSiteMapNode title="Change Status" area="Admin" controller="ProcessMembers" action="Process" alternate="Processed" /> Routes: The corresponding routes to these two nodes are (again, the only thing that distinguishes them is the value of the alternate parameter): context.MapRoute( "Process_New_Members", "Admin/Unprocessed/Process/{MemberId}", new { controller = "ProcessMembers", action = "Process", alternate="Unprocessed", MemberId = UrlParameter.Optional } ); context.MapRoute( "Change_Status_Old_Members", "Admin/Members/Status/Change/{MemberId}", new { controller = "ProcessMembers", action = "Process", alternate="Processed", MemberId = UrlParameter.Optional } ); What works: The Html.ActionLink helper uses the routes and produces the urls I expect: @Html.ActionLink("Process", MVC.Admin.ProcessMembers.Process(item.MemberId, "Unprocessed") // Output (alternate="Unprocessed" and item.MemberId = 12): Admin/Unprocessed/Process/12 @Html.ActionLink("Status", MVC.Admin.ProcessMembers.Process(item.MemberId, "Processed") // Output (alternate="Processed" and item.MemberId = 23): Admin/Members/Status/Change/23 In both cases the output is correct and as I expect. What doesn't work: Let's say my request involves the second option, ie, /Admin/Members/Status/Change/47, corresponding to alternate = "Processed" and a MemberId of 47. Debugging my static CurrentBranch property (see below), I find that SiteMap.CurrentNode shows: PreviousSibling: null Provider: {MvcSiteMapProvider.DefaultSiteMapProvider} ReadOnly: false ResourceKey: "" Roles: Count = 0 RootNode: {Home} Title: "Process" Url: "/Admin/Unprocessed/Process/47" Ie, for a request url of /Admin/Members/Status/Change/47, SiteMap.CurrentNode.Url evaluates to /Admin/Unprocessed/Process/47. Ie, it is ignorning the alternate parameter and using the wrong route. CurrentBranch Static Property: /// <summary> /// ReadOnly. Gets the Branch of the Site Map that holds the SiteMap.CurrentNode /// </summary> public static List<SiteMapNode> CurrentBranch { get { List<SiteMapNode> currentBranch = null; if (currentBranch == null) { SiteMapNode cn = SiteMap.CurrentNode; SiteMapNode n = cn; List<SiteMapNode> ln = new List<SiteMapNode>(); if (cn != null) { while (n != null && n.Url != SiteMap.RootNode.Url) { // I don't need to check for n.ParentNode == null // because cn != null && n != SiteMap.RootNode ln.Add(n); n = n.ParentNode; } // the while loop excludes the root node, so add it here // I could add n, that should now be equal to SiteMap.RootNode, but this is clearer ln.Add(SiteMap.RootNode); // The nodes were added in reverse order, from the CurrentNode up, so reverse them. ln.Reverse(); } currentBranch = ln; } return currentBranch; } } The Question: What am I doing wrong? The routes are interpreted by Html.ActionLlink as I expect, but are not evaluated by SiteMap.CurrentNode as I expect. In other words, in evaluating my routes, SiteMap.CurrentNode ignores the distinguishing alternate parameter.

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  • Issue getting camera emulation to work with Tom G's HttpCamera

    - by user591524
    I am trying to use the android emulator to preview video from webcam. I have used the tom gibara sample code, minus the webbroadcaster (i am instead using VLC streaming via http). So, I have modified the SDK's "CameraPreview" app to use the HttpCamera, but the stream never appears. Debugging through doesn't give me any clues either. I wonder if anything obvious is clear to others? The preview app launches and remains black. Notes: 1) I have updated the original CameraPreview class as described here: http://www.inter-fuser.com/2009/09/live-camera-preview-in-android-emulator.html, but referencing httpCamera instead of socketcamera. 2) I updated Tom's original example to reference "Camera" type instead of deprecated "CameraDevice" type. 3) Below is my CameraPreview.java. 4) THANK YOU package com.example.android.apis.graphics; import android.app.Activity; import android.content.Context; import android.hardware.Camera; import android.os.Bundle; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.Window; import java.io.IOException; import android.graphics.Canvas; // ---------------------------------------------------------------------- public class CameraPreview extends Activity { private Preview mPreview; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Hide the window title. requestWindowFeature(Window.FEATURE_NO_TITLE); // Create our Preview view and set it as the content of our activity. mPreview = new Preview(this); setContentView(mPreview); } } // ---------------------------------------------------------------------- class Preview extends SurfaceView implements SurfaceHolder.Callback { SurfaceHolder mHolder; //Camera mCamera; HttpCamera mCamera;//changed Preview(Context context) { super(context); // Install a SurfaceHolder.Callback so we get notified when the // underlying surface is created and destroyed. mHolder = getHolder(); mHolder.addCallback(this); //mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); mHolder.setType(SurfaceHolder.SURFACE_TYPE_NORMAL);//changed } public void surfaceCreated(SurfaceHolder holder) { // The Surface has been created, acquire the camera and tell it where // to draw. //mCamera = Camera.open(); this.StartCameraPreview(holder); } public void surfaceDestroyed(SurfaceHolder holder) { // Surface will be destroyed when we return, so stop the preview. // Because the CameraDevice object is not a shared resource, it's very // important to release it when the activity is paused. //mCamera.stopPreview();//changed mCamera = null; } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // Now that the size is known, set up the camera parameters and begin // the preview. //Camera.Parameters parameters = mCamera.getParameters(); //parameters.setPreviewSize(w, h); //mCamera.setParameters(parameters); //mCamera.startPreview(); this.StartCameraPreview(holder); } private void StartCameraPreview(SurfaceHolder sh) { mCamera = new HttpCamera("10.213.74.247:443", 640, 480, true);//changed try { //mCamera.setPreviewDisplay(holder); Canvas c = sh.lockCanvas(null); mCamera.capture(c); sh.unlockCanvasAndPost(c); } catch (Exception exception) { //mCamera.release(); mCamera = null; // TODO: add more exception handling logic here } } }

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  • android Xml-List view with filter

    - by harisali
    Hi, android is new for me. I am trying to develop a program on 1.5 platform but still in progress, plz guide me. I have some information in following format "item1","description1" "item2","description2" "item3","description3" "item4","description4" . . . . I want to show them on screen, I dont know which is recommended way to do this. After google I found 2 method. but I failed to successfully implement any of one. Method 1 I break both columns data into 2 different arrays, then populate listactivity with array of column 1, enable filter & on clicked event I want to raise alert which should show Text clicked in tilte & desc from 2nd array as msg body based on position. But here is problem if using filter index becomes reinitialize :-(, and there didnot find another way to get text of that row. public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.main); setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Names)); getListView().setTextFilterEnabled(true); } public void onListItemClick(ListView parent, View v, int position, long id) { Builder builder = new AlertDialog.Builder(this); builder.setTitle(Names[position]); builder.setMessage(description[position] + " -> " + position ); builder.setPositiveButton("ok", null); builder.show(); } <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> </LinearLayout> its not picking right item from position if filter used :-(, plz guide Can you share source code of this Method B Here I tried to generate list row from XML , but giving error that 1.5 jar file didnot allow modification :-( public View getView(int position, View convertView, ViewGroup parent) { /* ViewInflate inflater=context.getViewInflate(); View row=inflater.inflate(R.layout.row, null, null); */ View row = (View) convertView; if (row==null) { LayoutInflater inflater=context.getLayoutInflater(); // LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE); row = inflater.inflate(R.layout.row,null); } TextView label=(TextView)row.findViewById(R.id.label); label.setText(items[position]); TextView description=(TextView)row.findViewById(R.id.description); description.setText(items[position]); // ImageView icon=(ImageView)row.findViewById(R.id.icon); // icon.setImageResource(R.drawable.delete); return(row); } Plz suggest what is a right way to acconplish this, so app can show desc of item , has filter too. Plz share If you have any shouce code for this

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