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  • Android java.lang.VerifyError for private method with annotated argument.

    - by alex2k8
    I have a very simple project that compiles, but can't be started on Emulator. The problem is with this method: private void bar(@Some String a) {} // java.lang.VerifyError The issue can be avoided if annotation removed private void bar(String a) {} // OK or the method visibility changed: void bar(@Some String a) {} // OK public void bar(@Some String a) {} // OK protected void bar(@Some String a) {} // OK Any idea what is wrong with original method? Is this a dalvik bug, or? If some one whould like to experiment with code, here it is: Test.java: public class Test { private void bar(@Some String a) {} public void foo() { bar(null); } } Some.java: public @interface Some {} MainActivity.java: public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); new Test().foo(); } } Stack trace: ERROR/dalvikvm(1358): Could not find method com.my.Test.bar, referenced from method com.my.Test.foo WARN/dalvikvm(1358): VFY: unable to resolve direct method 11: Lcom/my/Test;.bar (Ljava/lang/String;)V WARN/dalvikvm(1358): VFY: rejecting opcode 0x70 at 0x0001 WARN/dalvikvm(1358): VFY: rejected Lcom/my/Test;.foo ()V WARN/dalvikvm(1358): Verifier rejected class Lcom/my/Test; DEBUG/AndroidRuntime(1358): Shutting down VM WARN/dalvikvm(1358): threadid=3: thread exiting with uncaught exception (group=0x4000fe70) ERROR/AndroidRuntime(1358): Uncaught handler: thread main exiting due to uncaught exception ERROR/AndroidRuntime(1358): java.lang.VerifyError: com.my.Test ERROR/AndroidRuntime(1358): at com.my.MainActivity.onCreate(MainActivity.java:13) ERROR/AndroidRuntime(1358): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) ERROR/AndroidRuntime(1358): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2231) ERROR/AndroidRuntime(1358): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284) ERROR/AndroidRuntime(1358): at android.app.ActivityThread.access$1800(ActivityThread.java:112) ERROR/AndroidRuntime(1358): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692) ERROR/AndroidRuntime(1358): at android.os.Handler.dispatchMessage(Handler.java:99) ERROR/AndroidRuntime(1358): at android.os.Looper.loop(Looper.java:123) ERROR/AndroidRuntime(1358): at android.app.ActivityThread.main(ActivityThread.java:3948) ERROR/AndroidRuntime(1358): at java.lang.reflect.Method.invokeNative(Native Method) ERROR/AndroidRuntime(1358): at java.lang.reflect.Method.invoke(Method.java:521) ERROR/AndroidRuntime(1358): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782) ERROR/AndroidRuntime(1358): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540) ERROR/AndroidRuntime(1358): at dalvik.system.NativeStart.main(Native Method)

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  • Forward declaration of derived inner class

    - by Loom
    I ran into problem implementing some variations of factory method. // from IFoo.h struct IFoo { struct IBar { virtual ~IBar() = 0; virtual void someMethod() = 0; }; virtual IBar *createBar() = 0; }; // from Foo.h struct Foo : IFoo { // implementation of Foo, Bar in Foo.cpp struct Bar : IBar { virtual ~Bar(); virtual void someMethod(); }; virtual Bar *createBar(); // implemented in Foo.cpp }; I'd like to place declaration of Foo::Bar in Foo.cpp. For now I cannot succeed: struct Foo : IFoo { //struct Bar; //1. error: invalid covariant return type // for ‘virtual Foo::Bar* //struct Bar : IBar; //2. error: expected ‘{’ before ‘;’ token virtual Bar *createBar(); // virtual IBar *createBar(); // Is not acceptable by-design }; Is there a trick to have just forward declaration of Boo in Foo.hpp and to have full declaration in Foo.cpp?

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  • Namespace scoped aliases for generic types in C#

    - by TN
    Let's have a following example: public class X { } public class Y { } public class Z { } public delegate IDictionary<Y, IList<Z>> Bar(IList<X> x, int i); public interface IFoo { // ... Bar Bar { get; } } public class Foo : IFoo { // ... public Bar Bar { get { return null; //... } } } void Main() { IFoo foo; //= ... IEnumerable<IList<X>> source; //= ... var results = source.Select(foo.Bar); } The compiler says: The type arguments for method 'System.Linq.Enumerable.Select(System.Collections.Generic.IEnumerable, System.Func)' cannot be inferred from the usage. Try specifying the type arguments explicitly. It's because, it cannot convert Bar to Func<IList<X>, int, IDictionary<Y, IList<Z>>>. It would be great if I could create type namespace scoped type aliases for generic types in C#. Then I would define Bar not as a delegate, but rather I would define it as an namespace scoped alias for Func<IList<X>, int, IDictionary<Y, IList<Z>>>. public alias Bar = Func<IList<X>, int, IDictionary<Y, IList<Z>>>; I could then also define namespace scoped alias for e.g. IDictionary<Y, IList<Z>>. And if used appropriately:), it will make the code more readable. Now I have inline the generic types and the real code is not well readable:( Have you find the same trouble:)? Is there any good reason why it is not in C# 3.0? Or there is no good reason, it's just matter of money and/or time? EDIT: I know that I can use using, but it is not namespace based - not so convenient for my case.

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  • Eclipse > Javascript > Code highlighting not working with Object Notation

    - by Redsandro
    I am using Eclipse Helios with PDT, and when I am editing JavaScript files with the default JavaScript Editor (JSDT), code highlighting (Mark Occurrences) is not working for half of the code, for example JSON-style (or Object Literal if you will) declarations. Little example: Foo = {}; Foo.Bar = Foo.Bar || {}; Foo.Bar = { bar: function(str) { alert(str) }, baz: function(str) { this.bar(str); // This bar *is* highlighted though } }; Foo.Bar.baz('text'); No Bar, bar or baz is highlighted. For now, I humbly edit the JavaScript part of projects in Notepad++ because it just highlights every occurrence of whatever is currently selected. Is there a common practice for Eclipse JavaScript developers to get code highlighting work correctly, using the popular Object Literal notation? An option or update I missed? -update- I have found that code highlighting depends on the code being properly outlined. Altough commonly used, Object Literal outlining still seems rare in javascript editors. the Spket Javascript Editor does partial Object Literal outlining, and the Aptana Javascript Editor does full Object Literal outlining. But both loses other important functionality. A quest for the editor with the least loss of functionality is currently in progress in this question.

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  • Ruby on Rails: has_many through frustrations

    - by Joe Cairns
    I'm having a frustrating problem with a has_many through: namely the fact that the through models are not created until save. Unfortunately, I need to set data on these models prior to saving the parent. Here's the loose setup: class Wtf < ActiveRecord::Base belongs_to :foo belongs_to :bar end class Bar < ActiveRecord::Base has_many :wtfs has_many :foos, :through => :wtfs end class Foo < ActiveRecord::Base has_many :wtfs has_many :bars, :through => :wtfs def after_initialize Bar.all.each do |bar| bars << bar end end end Everything is fine except that I need to access the "wtf"'s prior to save: f = Foo.new = # f.bars = [list of bars] empty list here f.wtfs = [] f.save! = true now I get stuff f.wtfs = [list of stuff] I even went so far as to explicitly create the wtfs doing this: def after_initialize Bar.all.each do |bar| wtfs << Wtf.new( :foo => self, :bar => bar, :data_i_need_to_set => 10) end end This causes the f.wtfs to be populated, but not the bars. When I save and retrieve, I get double the expected wtfs. Anyone have any ideas?

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  • Two different websites in one remote hosting

    - by Kor
    My client asked me that a website that is hosted in one server (and pointing there through a domain) should also be accessed (into a specific directory) from another domain, which is not pointing there. For example: http://www.foo.com, hosted at GoDaddy, with the full website http://www.bar.com, hosted at Bluehost, needs to access http://www.foo.com/bar, as if it was the http://www.bar.com's root. So, if anybody enters through http://www.bar.com, it should internally load http://www.foo.com/bar, without visually changing the url. I amb not sure if this is possible using .htaccess or anything like this. Could anybody show me some light? Thanks in advance

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  • Mounting filesystem with special user id set

    - by qbi
    I want to mount the device /dev/sda3 to the directory /foo/bar/baz. After mounting the directory should have the uid of user johndoe. So I did: sudo -u johndoe mkdir /foo/bar/baz stat -c %U /foo/bar/baz johndoe and added the following line to my /etc/fstab: /dev/sda3 /foo/bar/baz ext4 noexec,noatime,auto,owner,nodev,nosuid,user 0 1 When I do now sudo -u johndoe mount /dev/sda3 the command stat -c %U /foo/bar/baz results in root rather than johndoe. What is the best way to mount this ext4-filesystem with uid johndoe set?

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  • How to attach a scroll bar to a canvas in android ?

    - by panzerschreck
    Hello, I am drawing up a grid on a canvas as below, I have not been able to get the scroll bar to appear, I looked around for examples, but none of them give details on drawing scroll bars for custom views. Your help is much appreciated. public class GridActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // i tried to do as in the documentation nothing seems to happen LinearLayout lLayout = new LinearLayout(this); lLayout.addView(new CustomDrawableView(this), new ViewGroup.LayoutParams(800,600)); FrameLayout fLayout = new FrameLayout(this); fLayout.addView(lLayout, new ViewGroup.LayoutParams(800,600)); setContentView(fLayout); } private class GridView extends ScrollView { private ShapeDrawable[] mDrawable; public GridView (Context context) { // some initialization } protected void onDraw(Canvas canvas) { for each i mDrawable[i].draw(canvas) } } }

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  • Using chilkat to extract RAR files with progress bar?

    - by Dodi300
    Hello. Does anyone know how to show the progress of archives extracting, when using chilkat? I already have a progress bar called "progressBar1" on my form. At the moment the whole program freezes when extraction is started. Maybe have another thread? I'm using this code: Chilkat.Rar rar = new Chilkat.Rar(); bool success; success = rar.Open("abc123.rar"); if (success != true) { MessageBox.Show(rar.LastErrorText); return; } success = rar.Unrar("c:/temp/unrarDest/"); if (success != true) { MessageBox.Show(rar.LastErrorText); } else { MessageBox.Show("Success."); } If anyone has any alternative ways to extract .rar files, it would be great to know. Thanks.

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  • Javascript: Calling a function written in an anonymous function from String with the function's name

    - by Kai barry yuzanic
    Hello. I've started using jQuery and am wondering how to call functions in an anonymous function dynamically from String. Let's say for instance, I have the following functions: function foo() { // Being in the global namespace, // this function can be called with window['foo']() alert("foo"); } jQuery(document).ready(function(){ function bar() { // How can this function be called // by using a String of the function's name 'bar'?? alert("bar"); } // I want to call the function bar here from String with the name 'bar' } I've been trying to figure out what could be the counterpart of 'window', which can call functions from the global namespace such as window["foo"]. In the small example above, how I can call the function bar from a String "bar"? Thank you for your help.

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  • How do I get the "Install Missing Plugin" yellow bar to appear in firefox when flash is not installe

    - by Janak
    My rails website uses the open_flash_graph plugin to generate flash graphs for my clients. If a customer doesn't have flash installed, it doesn't display any messages, it simply doesn't show any graphs. I've noticed that if I go to other websites that need flash, I get a yellow bar at the top of my firefox window that offers to "Install Missing Plugin". I assume something in the HTML lets firefox know that this webpage needs flash. What code do I need to add to my website to make this work?

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  • How does Unity.Resolve know which constructor to use?

    - by stiank81
    Given a class with several constructors - how can I tell Resolve which constructor to use? Consider the following example class: public class Foo { public Foo() { } public Foo(IBar bar) { Bar = bar; } public Foo(string name, IBar bar) { Bar = bar; Name = name; } public IBar Bar { get; set; } public string Name { get; set; } } If I want to create an object of type Foo using Resolve how will Resolve know which constructor to use? And how can I tell it to use the right one? Let's say I have a container with an IBar registered - will it understand that it should favor the constructor taking IBar? And if I specify a string too - will it use the (string, IBar) constructor? Foo foo = unityContainer.Resolve<Foo>(); And please ignore the fact that it would probably be easier if the class just had a single constructor...

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  • Rails 2.3.x, named_scope chaining with INNER JOIN complication

    - by randombits
    I have two hypothetical classes, Foo and Bar. Foo contains many Bars. Bar can only belong to one Foo. Ultimately the SQL query I'm trying to make happen looks like the following: SELECT * from bar INNER JOIN foo ON bar.foo_id = foo.id where bar.in_use = 0 and bar.customer_id = 1 and foo.category = 0 That query does what I need. Now I'm trying to break the problem down in Rails using chained named_scopes. First, the straight forward in_use and customer_id scopes I have set: named_scope :available, :conditions => { :in_use => 0 } named_scope :not_available, :conditions => { :in_use => 1 } named_scope :customer, lambda { |num| { :conditions => { :customer_id => num } } } Now the part I'm stuck at, is I'm trying to do something like this in my code: abar = Bar.available.customer(1).category(0) how and where do I put the category named_scope to make this work?

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  • How do I set the color for the editButtonItem in the navigation bar of a UITableViewController ?

    - by eemceebee
    Hi I have a UITableViewController where I added a "editButtonItem" in the navigation bar : self.navigationItem.leftBarButtonItem = self.editButtonItem; No magic here, but I try to define the color (background and foreground/textcolor) of this button. I read in the Apple forum somewhere that the button changes the color if I change the navigationbar to the same color, well despite the fact that I do not get this to work either (for testing) I do not want to touch the navigationbr itself, just the button. Since this button is already predefined I am not sure how to handle this. Do I need to overwrite the button with my own definition or can I just simply apply a new style (if so how ?) Thx

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  • UISearch bar case sensitive off ? ? ?

    - by Flodev03
    hi all, in a table view i have set a UISearchBar set the delegate and add the protocol. When user tap a word everything is ok exept that the search of "tennis" and "Tennis" is not the same. How can i make the search bar a non case sensitive UISearchBar, i have search a lot please help it would be great thanks to all here is my code where i think evrything happens : thanks to all !!!! - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText { [tableData removeAllObjects];// remove all data that belongs to previous search if([searchText isEqualToString:@""]||searchText==nil){ [myTableView reloadData]; return; } NSInteger counter = 0; for(NSString *name in dataSource) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init]; NSRange r = [name rangeOfString:searchText]; if(r.location != NSNotFound) [tableData addObject:name]; counter++; [pool release]; } [myTableView reloadData]; }

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  • Why are Views loaded from nibs being placed 20 pixels down from the status bar?

    - by rickharrison
    I am trying to set up a layout as such in an iPad application. It will have three major views, which make up the whole screen. The views will be stacked one on top of the other, each taking up the full width. I have one major nib file which accounts for the entire screen space. In that nib file, I am instantiating the three view controllers with outlets. Then I have this code: - (void)viewDidLoad { [super viewDidLoad]; [self.view addSubview:controllerOne.view]; [self.view addSubview:controllerTwo.view]; [self.view addSubview:controllerThree.view]; } This adds the views on top of one another and 20 pixels lower. However, after rotating to landscape and back they are right under the status bar. Do you know what would be causing this?

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  • Can I use an opened gzip file with Popen in Python?

    - by eric.frederich
    I have a little command line tool that reads from stdin. On the command line I would run either... ./foo < bar or ... cat bar | ./foo With a gziped file I can run zcat bar.gz | ./foo in Python I can do ... Popen(["./foo", ], stdin=open('bar'), stdout=PIPE, stderr=PIPE) but I can't do import gzip Popen(["./foo", ], stdin=gzip.open('bar'), stdout=PIPE, stderr=PIPE) I wind up having to run p0 = Popen(["zcat", "bar"], stdout=PIPE, stderr=PIPE) Popen(["./foo", ], stdin=p0.stdout, stdout=PIPE, stderr=PIPE) Am I doing something wrong? Why can't I use gzip.open('bar') as an stdin arg to Popen?

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