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  • How to refresh an activity?

    - by poeschlorn
    Hi Guys, after implementing some Android Apps, including several Map activities, I try to refresh the activity when the GPS listener's onLocationChanged() mehtod is called. I have no Idea how to tell the map activity to refresh on its own and display the new coords... the coords to store will have to be in global values, so that the location listener will have access to it. In my sample GPS-class (see code below) I just changed the text of a text view....but how to do that in map view? private class MyLocationListener implements LocationListener { @Override public void onLocationChanged(Location loc) { final TextView tv = (TextView) findViewById(R.id.myTextView); if (loc != null) { tv.setText("Location changed : Lat: " + loc.getLatitude() + " Lng: " + loc.getLongitude()); } } I think the solution of this Problem won't be very difficult, but I just need the beginning ;-) This whole app shall work like a really simple navigation system. It would be great if someone could help me a little bit further :) nice greetings, Poeschlorn

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  • How can I modify input before model binding in asp.net mvc?

    - by David G
    How can I intercept submitted form input and modify it before it is bound to my model? For example, if I wanted to trim the whitespace from all text. I have tried creating a custom model binder like so: public class CustomBinder : DefaultModelBinder { protected override void SetProperty(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor, object value) { string newValue = ((string)value).Trim(); //example code to create new value but could be anything base.SetProperty(controllerContext, bindingContext, propertyDescriptor, newValue); } } but this doesn't seem to be invoked. Is there a better place to modify the input value? Note: I need to modify the value before it is bound and validated.

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  • Writing a custom iterator -- what to do if you're at the end of the array?

    - by Goose Bumper
    I'm writing a custom iterator for a Matrix class, and I want to implement the increment method, which gets called when the iterator is incremented: void MatrixIterator::increment() { // go to the next element } Suppose the iterator has been incremented too many times and now points to past the end of the matrix (i.e. past the one-past-the-end point). What is the best practice for this situation? Should I catch this with an assert, or should I just say it's the user's responsibility to keep track of where the iterator is pointing and it's none of my business?

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  • Implementing Iterable in Java

    - by Artium
    I have the following code public class A extends Iterable<Integer> { ... public Iterator<Integer> iterator() { return new Iterator<Integer>() { A a; public boolean hasNext() { ... } public Integer next() { ... } public void remove(){ ... } }; I would like to initialize the "a" field in the anonymous class with the instance of A that iterator method was called on. Is it possible? Thank you.

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  • How to increment a value using a C-Preprocessor in Objective-C?

    - by mystify
    Example: I try to do this: static NSInteger stepNum = 1; #define METHODNAME(i) -(void)step##i #define STEP METHODNAME(stepNum++) @implementation Test STEP { // do stuff... [self nextFrame:@selector(step2) afterDelay:1]; } STEP { // do stuff... [self nextFrame:@selector(step3) afterDelay:1]; } STEP { // do stuff... [self nextFrame:@selector(step4) afterDelay:1]; } // ... When building, Xcode complains that it can't increment stepNum. This seems logical to me, because at this time the code is not "alive" and this pre-processing substitution stuff happens before actually compiling the source code. Is there another way I could have an variable be incremented on every usage of STEP macro, the easy way?

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  • HTML tables in JTextPane showing weird "form" boxes

    - by Ted
    import java.awt.BorderLayout; import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextPane; import javax.swing.border.EmptyBorder; import javax.swing.text.Document; import javax.swing.text.html.HTMLEditorKit; import javax.swing.text.html.StyleSheet; public class htmlEditor2 extends JFrame { private JPanel contentPane; public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { htmlEditor2 frame = new htmlEditor2(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } public htmlEditor2() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, 0)); setContentPane(contentPane); Foo f = new Foo(); f.setText("<html><body><table border=\"1\" width=\"985\" cellpadding=\"3\" cellspacing=\"0\" style=\"table-layout: fixed; border-collapse: collapse; border-width: 0px; border-color: #010101; \"><colgroup><col width=\"328\"></col> <col width=\"328\"></col> <col width=\"328\"></col> </colgroup><tr><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><font face=\"Arial\"><span style=\"font-size:8pt\">row 1</span></font></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><font face=\"Arial\"><span style=\"font-size:8pt\">row2</span></font></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><font face=\"Arial\"><span style=\"font-size:8pt\">row3</span></font></div></td></tr><tr><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td></tr><tr><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td></tr></table><div align=\"left\">&nbsp;&nbsp;</div></body></html>"); contentPane.add(f); } class Foo extends JTextPane { public Foo() { super(); HTMLEditorKit kit = new HTMLEditorKit(); setEditorKit(kit); StyleSheet styleSheet = kit.getStyleSheet(); styleSheet.addRule(""); //in case I need to add a CSS Document doc = kit.createDefaultDocument(); setDocument(doc); } } } I would paste a nicely formatted version of the html, but I'm not sure how to do it on here... So yeah.. I just want to know how to get rid of those weird colgroup and col boxes in my table and how to make the table work normally! Thanks yall!

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  • About the fix for the interference between Company mode and Yasnippet

    - by janoChen
    Emacs wiki says: Company does interfere with Yasnippet’s native behaviour. Here’s a quick fix: http://gist.github.com/265010 The code is the following: (define-key company-active-map "\t" 'company-yasnippet-or-completion) (defun company-yasnippet-or-completion () (interactive) (if (yas/expansion-at-point) (progn (company-abort) (yas/expand)) (company-complete-common))) (defun yas/expansion-at-point () "Tested with v0.6.1. Extracted from `yas/expand-1'" (first (yas/current-key))) I placed that code in my .emacs and the following message appeared: Warning (initialization): An error occurred while loading `c:/Documents and Settings/Alex.AUTOINSTALL.001/Application Data/.emacs.elc': Symbol's value as variable is void: company-active-map To ensure normal operation, you should investigate and remove the cause of the error in your initialization file. Start Emacs with the `--debug-init' option to view a complete error backtrace. Do I have to place the fix code inside a YASnippet's .el file? or in my .emacs (which throws me an error)?

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  • How to pop Toolwindow in a defined position

    - by Enmanuel
    Hi everyone. Im trying to integrate a toolwindow in a Winforms application, it will be a tiny floating window to display element details in a listbox. What I need is pop the window in a relative position to the control that triggers the action, so here is the thing: the Location property gives me the relative position of the control from its container (the main form in this case) so this is the workaround im using: public void Show(kTextBox source) { Point absCoord = source.PointToScreen(source.Location); this.Location = this.PointToClient(absCoord); base.Show(); } Basically this is: get the absolute control position and set this position (previously converted into owner relative) to the toolwindow. I think it should work just fine but is missing for a certain degree, and it varies depending what control i use. Its kinda confusing. Been there anyone?? Thanks in advance.

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  • fprintf() within a subprogram

    - by sergio
    Im stuck when trying to write to my file within my subprogram. void new_page(float *a, float *b, float *c, int *d){ fprintf(results,"\nPage Totals: %f\t%f\t%f\t%d", *a,*b,*c,*d); } I get a warning saying "Warning: incompatible implicit declaration of built-in function 'fprinf' [enabled by default]" "error: 'results' undeclared (first use in this function)" in main fprintf works fine, its just when it comes to the subprogram/function it wont work. from my understanding it thinks that results is undeclared, so do i have to pass the name or location of the file to make it work?

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  • How can I type cast EventArgs to have a .point property in c#? [closed]

    - by Sean Smyth
    I'm working with a double click function in c#. the function takes an object and EventArgs as it's parameters: private void gvHL7_DoubleClick(object sender, EventArgs e){ . . . } However, I want to use the .Point property, and EventArgs doesn't have that property. I know that DevExpress.XtraGrid.Views.Grid.GridMenuEventArgs does, but it's saying that's an invalid casting. What type should I cast my EventArgs instance to if I wish to access the .Point property? Edit: The double click function I'm working with is provided by devexpress for their grids.

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  • Empty accessors do matter?

    - by Petr
    Hi, I have following code that does not work due to "a" being a value typed. But I thought it would not work even without accessors, but it did: class Program { a _a { get; //when both accessors deleted, it will work set; } static void Main(string[] args) { Program p = new Program(); p._a.X = 5; } } struct a { public int X; } It does not work as "a" is struct. But when I delete accessors from "_a" instance, it works. I do not understand why. Thanks

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  • audio power on AudioQueue

    - by Tomoyuki
    Hi everyone. I'm now creating an Application using speech recognition.To check the Audio Power coming in through the microphone, I wrote a method as follows. -(void)checkPower(AudioqueRef)queue{ UInt32 expectedSize= sizeof(AudioQueueLevelMeterState); AudioQueueGetProperty(queue, kAudioQueueProperty_CurrentLevelMeter, audioLevels, expectedSize); NSLog(@"average:%f peak:%f",audioLevels.mAveragePower,audioLevels.mPeakPower); } I found that sometimes mAveragePower was larger than mPeakPower, and when mAveragePower was 1.0, in other words, averagePower is regarded as max, mPeakPower was lower than 1.0. I think that generally this result is inpossible. please Let me know if you have any information about sound power on CoreAudio. thanks.

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  • Hiding/Unhiding Control in Gridview’s column - shifting problem

    - by lupital
    This is a follow up to my previous question: link text In gridview's column i have a linkbutton and a label under it. I want to hide/unhide label when linkbutton is clicked. I use javascript because i don't want any postbacks. The code: protected void gvwComments_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { LinkButton lButton = ((LinkButton)e.Row.Cells[2].FindControl("lbtnExpand")); Label label = ((Label)e.Row.Cells[2].FindControl("lblBody")); lButton.Attributes.Add("onclick", string.Format("HideLabel('{0}'); return false;", label.ClientID)); } } function HideLabel(button) { var rowObj = document.getElementById(button); if (rowObj.style.display == "none") { rowObj.style.display = "block"; } else { rowObj.style.display = "none"; } } The problem is that when I unhide the label by clicking on button, linkbutton is shifted a a bit upper it's original position in the cell. Is it possible to preserve linkbutton's position in the gridviews cell?

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  • C# Thread issues

    - by Mike
    What I have going on is a listview being dynamically created from a previous button click. Then ti starts a background worker in which should clear out the listview and populate the iistview with new information every 30 seconds. I continously get: Cross-thread operation not valid: Control 'listView2' accessed from a thread other than the thread it was created on. private void watcherprocess1Updatelist() { listView2.Items.Clear(); string betaFilePath1 = @"C:\Alpha\watch1\watch1config.txt"; using (FileStream fs = new FileStream(betaFilePath1, FileMode.Open)) using (StreamReader rdr = new StreamReader((fs))) { while (!rdr.EndOfStream) { string[] betaFileLine = rdr.ReadLine().Split(','); using (WebClient webClient = new WebClient()) { string urlstatelevel = betaFileLine[0]; string html = webClient.DownloadString(urlstatelevel); File.AppendAllText(@"C:\Alpha\watch1\specificconfig.txt", html); } } }

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  • How to cause bindings to be updated, particularly for derived values?

    - by rrhartjr
    I'm using some CLR objects that use the INotifyPropertyChanged interface and use the PropertyChanged function to update in WPF bindings. Pretty boilerplate: protected void RaisePropertyChanged(string propertyName) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } Then the property: private double m_TotalWidgets = 0; public double TotalWidgets { get { return m_TotalWidgets; } set { m_TotalWidgets = value; RaisePropertyChanged("TotalWidgets"); } } Is there a better way to update a derived value or even the whole class? Say I had a calculated value: public double ScaledWidgets { get { return TotalWidgets * CONSTANT_FACTOR; } } I would have to fire ScaledWidget's PropertyChanged when TotalWidgets is updated, eg: set { m_TotalWidgets = value; RaisePropertyChanged("TotalWidgets"); RaisePropertyChanged("ScaledWidgets"); } Is there a better way to do this? Is it possible "invalidate" the whole object, especially if there are a lot of derived values? I think it would be kind of lame to fire 100 PropertyChanged events.

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  • OAuth Request token = null in android app

    - by jonney
    Hi, i am trying to authenticate something(in this case LinkedIn) using OAuth but the requested token always returns null? Here is my code below: public void authenticateAppOauthApi() { Log.d(TAG, "authenticateAppOauthApi"); OAuthServiceProvider provider = new OAuthServiceProvider( REQUEST_TOKEN_PATH, AUTHORIZE_PATH, ACCESS_TOKEN_PATH); OAuthConsumer consumer = new OAuthConsumer(CALLBACK_URL, API_KEY, SECRET_KEY, provider); OAuthAccessor accessor = new OAuthAccessor(consumer); Intent intent = new Intent(Intent.ACTION_VIEW); Log.d(TAG, "Intent intent = new Intent(Intent.ACTION_VIEW );"); // intent.setData(Uri.parse(url)); String url = accessor.consumer.serviceProvider.userAuthorizationURL + "?oauth_token=" + accessor.requestToken + "&oauth_callback=" + accessor.consumer.callbackURL; intent.setData(Uri.parse(url)); Log.d(TAG, "intent.setData(Uri.parse(url)); = " + url); mContext.startActivity(intent); Log.d(TAG, "finish authenticateApp"); } I basicaly followed the example here http://donpark.org/blog/2009/01/24/android-client-side-oauth thanks in advance

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  • INotifyPropertyChange ~ PropertyChanged not firing when property is a collection and a new item is a

    - by eponymous23
    I have a class that implements the INotifyPropertyChanged interface. Some of the properties of the class are of type List. For example: public List<string> Answers { get { return _answers; } set { _answers = value; onPropertyChanged("Answers") } } ... private void onPropertyChanged(string propertyName) { if(this.PropertyChanged != null) this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } If I assign a new List<string> to Answer, then the PropertyChanged event fires as expected; but if I add a string string to the Answer list using the List Add method, then PropertyChanged event doesn't fire. I was considering adding an AddAnswer() method to my class, which would handle calling the lists's Add method and would call onPropertyChanged() from there, but is that the right way to do it? Is there a more elegant way of doing it? Cheers, KT

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  • Spring 3 MVC : problem with form:errors and bindingresult

    - by Maxime ARNSTAMM
    Hi, I want to validate my inputs but i can't make it work : nothing appear on the page. My project is in java 5, so no JSR303 (@Valid). My only solution, if i'm not mistaken, is to use BindingResult. My controller : @Controller public class MyController { @RequestMapping(method = RequestMethod.POST, value = "myPage.html") public void myHandler(MyForm myForm, BindingResult result, Model model) { result.reject("field1", "error message 1"); } } My jsp : <form:form commandName="myForm" method="post"> <label>Field 1 : </label> <form:input path="field1" /> <form:errors path="field1" /> <input type="submit" value="Post" /> </form:form> What am i missing ? Thanks !

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  • use boolean with visible, as3

    - by VideoDnd
    Is there a better way to do use a use a boolean with visible? This animation blinks 30 times and stops. It works without error, but takes a moment to load. I would like to learn other ways of using visibility with conditionals. var timz:Timer = new Timer(100,30); timz.addEventListener(TimerEvent.TIMER, doIt); var condition:Number = 5; function doIt(event:TimerEvent):void{ trace("fire!"); if(condition=5){ box.visible = !box.visible; } } timz.start();

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  • android: Check if a View is bringed to front

    - by user329692
    Hi Guys! I made a custom component which simple extends a WebView This component is used into activities that are loaded from a tabhost. This component creates a timertask too. I'd like to execute the task only if the activity that contains the component is visible. Ex: public class MyWebView extends WebView { public MyWebView(Context context, AttributeSet as) { super(context,as); /** More code **/ TimerTask ttask = new TimerTask() { @Override public void run() { if (iamvisible) doStuff(); } }; timer = new Timer(); timer.schedule(ttask, refreshInterval * 1000, refreshInterval * 1000); } } How can I set the iamvisible variable? I tried overriding onWindowFocusChanged and onWindowVisibilityChanged but with no luck Regards in advance

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  • How to highlight text automatically inside an UIAlertView text field

    - by user333624
    Hello everyone I have an UIAlertView with a textfield that shows a default value and two buttons, one to cancel and the other one to confirm. What I am trying to do is that when the alert view is popped up the default value is highlighted so the user can override the whole value faster than manually erasing it. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Title" message:@"" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Continue",nil]; [alerta addTextFieldWithValue:@"87893" label:@"value"]; UITextField *textField = [alert textField]; campoTexto.highlighted = YES; campoTexto.keyboardType = UIKeyboardTypeNumbersAndPunctuation; [alertt show]; [alert release]; } for some reason there is a highlighted attribute for the textfield but it doesn't seem to work and there is no trail of that attribute in the Class documentation.

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  • C# - Dictionary with generic array as value

    - by alhazen
    In my class, I want to use a dictionary with the following declaration: Dictionary<string, T[]> Since the operations of my class are exactly the same for all generic types, I do not wish to define my class as generic (which means I would have to create a separate instance of my class for each generic type I insert into the dictionary ?). One alternative I'm attempting is to use Dictionary<string, object> instead: public void Add<T>(string str, T value) { // Assuming key already exists var array = (T[]) dictionary[str]; array[0] = value; } However, when iterating over the dictionary, how do I cast the object value back to an array ? foreach(string strKey in dictionary.Keys) { var array = (T[]) dictionary[strKey]; // How to cast here ? //... array[0] = default(T); } Thanks.

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  • Dynamic table in Asp.Net

    - by Sivakumar
    Hi guys here I've created d dynamic table and how can i set d properties of the table like height, width and etc? Pls help me.. Thanks... code private void GenerateTable(int rowsCount) { Table table = new Table(); for (int i = 0; i < rowsCount; i++) { TableRow row = new TableRow(); TableCell cell = new TableCell(); TextBox tb1 = new TextBox(); DropDownList drp1 = new DropDownList(); tb1.ID= "dname"+i;drp1.ID = "relation" + i; cell.Controls.Add(tb1); cell.Controls.Add(drp1); row.Cells.Add(cell);table.Rows.Add(row); } rowsCount++; ViewState["RowsCount"] = rowsCount; }

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  • Accessing variables of an object of a particular class through a different class within the construc

    - by Haxed
    class Student { private String name; public Student(String name){ this.name = name; } public String getName(){ return name; } } class StudentServer { public StudentServer(){ Student[] s = new Student[30]; s[0] = new Student("Nick"); System.out.println(s[0]); // LINE 01:But this compiles, although prints junk System.out.println(s[0].getName()); // LINE 02:I get a error called cannot find symbol } public static void main(){ new StudentServer(); } } Hey, there are two lines, I want the reader to focus on, the first line prints junk as usual, but suprizingly the second one gives me an error. Do you know why ? Many Thanks

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  • How can I bind a custom property of a windows form to a second property?

    - by jeroko
    I want to bind a custom property of a windows form to a second property, so when I update the former the latter gets the same value. This is the simplest example of what I'm trying to do: public partial class Form2 : Form { public string MyTargetProperty { get; set; } public string OtherProperty { get; set; } public Form2() { InitializeComponent(); this.DataBindings.Add("MyTargetProperty", this, "OtherProperty"); } private void button1_Click(object sender, EventArgs e) { MyTargetProperty = "test"; Console.WriteLine("OtherProperty " + OtherProperty); } } When I click button1 I should be able to see that 'OtherProperty' has the same value as 'MyTargetProperty'. Am I doing something wrong? Do I miss something?

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