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• My android app crash before load main.xml

  - by Saverio Puccia

  my android app crash before load main.xml. This is the exception thrown java.lang.RuntimeException: Unable to resume activity...: java.lang.NullPointerException What happens? For completeness I enclose my manifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="saverio.puccia.nfcauth" android:versionCode="1" android:versionName="1.0" > //permission <uses-sdk android:minSdkVersion="10" /> <uses-permission android:name="android.permission.NFC"></uses-permission> <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission> //main declaration <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name=".NFCAuthActivity" android:label="@string/app_name" > //intent filter declaration <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> <intent-filter> <action android:name="android.intent.action.NDEF_DISCOVER" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> </activity> </application> </manifest> LOGCAT 06-25 11:03:23.670: E/AndroidRuntime(4323): FATAL EXCEPTION: main 06-25 11:03:23.670: E/AndroidRuntime(4323): java.lang.RuntimeException: Unable to resume activity {saverio.puccia.nfcauth/saverio.puccia.nfcauth.NFCAuthActivity}: java.lang.NullPointerException 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2456) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2484) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1998) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.ActivityThread.access$600(ActivityThread.java:127) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1159) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.os.Handler.dispatchMessage(Handler.java:99) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.os.Looper.loop(Looper.java:137) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.ActivityThread.main(ActivityThread.java:4507) 06-25 11:03:23.670: E/AndroidRuntime(4323): at java.lang.reflect.Method.invokeNative(Native Method) 06-25 11:03:23.670: E/AndroidRuntime(4323): at java.lang.reflect.Method.invoke(Method.java:511) 06-25 11:03:23.670: E/AndroidRuntime(4323): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790) 06-25 11:03:23.670: E/AndroidRuntime(4323): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 06-25 11:03:23.670: E/AndroidRuntime(4323): at dalvik.system.NativeStart.main(Native Method) 06-25 11:03:23.670: E/AndroidRuntime(4323): Caused by: java.lang.NullPointerException 06-25 11:03:23.670: E/AndroidRuntime(4323): at saverio.puccia.nfcauth.NFCAuthActivity.onResume(NFCAuthActivity.java:103) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1157) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.Activity.performResume(Activity.java:4539) 06-25 11:03:23.670: E/AndroidRuntime(4323): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2446) 06-25 11:03:23.670: E/AndroidRuntime(4323): ... 12 more 06-25 11:03:23.670: W/ActivityManager(1998): Force finishing activity r.intent.getComponent().flattenToShortString()

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• Android project problem

  - by qwerty

  Hello, here I uploaded my Android project made in Eclipse. The idea is that i have a service, which computes the sum of two random numbers. But when i press the OK Button, i don't see the result in that edit box... why? What i'm doing wrong? Please help Thanks! EDIT: The code: //service class package service; import java.util.Random; import com.android.AplicatieSuma; import android.widget.EditText; import android.widget.TextView; public class ServiciuSuma { public ServiciuSuma() { } public int CalculateSum() { Random generator=new Random(); int n=generator.nextInt(); int m=generator.nextInt(); return n+m; } } The Application class: package com.android; import android.app.*; import service.*; public class ApplicationSum extends Application { public ServiciuSuma service = new ServiciuSuma(); } and the main Activity class: package com.android; import com.android.R; import android.app.Activity; import android.content.Intent; import android.graphics.Color; import android.graphics.PorterDuffColorFilter; import android.graphics.drawable.Drawable; import android.graphics.PorterDuff; import android.os.Bundle; import android.provider.Settings; import android.view.View; import android.view.View.OnClickListener; import android.widget.EditText; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; public class Activitate extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); View btn_ok = findViewById(R.id.btn_ok); btn_ok.setOnClickListener(new OnClickListener() { public void onClick(View v) { CalculeazaSuma(); } }); } private void CalculeazaSuma() { AplicatieSuma appState = ((AplicatieSuma)this.getApplication()); EditText txt_amount = (EditText)findViewById(R.id.txt_amount); txt_amount.setText(appState.service.CalculateSum()); //BindData(); } } So that edit text does not show the sum of the random generated numbers, by the service. What's wrong? Thanks EDIT: the manifest xml file: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.android" android:versionCode="1" android:versionName="1.0.1"> <supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:anyDensity="true" /> <application android:name="ApplicationSum" android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true"> <activity android:label="@string/app_name" android:name=".Activitate"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="7" android:targetSdkVersion="7" /> </manifest>

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• Eclipse will not show 2.3 emulator for android compatibility package code

  - by Mark Lasby

  I am trying to learn fragments to modernize an app I originally wrote for android 1.5 that uses Date Picker Dialog. I am using the android-support-v4 library. When I run the code in Eclipse Juno 20120614-1722 it only shows android 4.0 emulators and there is a red X beside my Samsung phone running 2.3.5. When I push the package to phone, the code runs. Here is the code FragTestActivity.java package xyz.marklasby.fragtest; import java.text.SimpleDateFormat; import java.util.Calendar; import android.app.DatePickerDialog; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.support.v4.app.FragmentActivity; import android.view.View; import android.widget.Button; import android.widget.DatePicker; public class FragTestActivity extends FragmentActivity { private Button date; private Calendar now; private SimpleDateFormat sdf = new SimpleDateFormat(" EEE MMM dd/yyyy"); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); date = (Button) findViewById(R.id.setdate); now = Calendar.getInstance(); date.setText(sdf.format(now.getTime())); date.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { editDate(v); } }); } public void editDate(View v) { DialogFragment newFragment = DatePickerFragment.newInstance(new DatePickerDialog.OnDateSetListener() { @Override public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { now.set(year, monthOfYear, dayOfMonth); date.setText(sdf.format(now.getTime())); } }); newFragment.show(getSupportFragmentManager(), "datePicker"); } } DatePickerFragment.java package xyz.marklasby.fragtest; import java.util.Calendar; import android.app.DatePickerDialog; import android.app.Dialog; import android.os.Bundle; import android.support.v4.app.DialogFragment; public class DatePickerFragment extends DialogFragment { static DatePickerDialog.OnDateSetListener mListener; public static DatePickerFragment newInstance(DatePickerDialog.OnDateSetListener listener) { mListener = listener; return new DatePickerFragment(); } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { final Calendar c = Calendar.getInstance(); int year = c.get(Calendar.YEAR); int month = c.get(Calendar.MONTH); int day = c.get(Calendar.DAY_OF_MONTH); return new DatePickerDialog(getActivity(), mListener, year, month, day); } } Manifest.xml <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="xyz.marklasby.fragtest" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".FragTestActivity" android:label="@string/title_activity_frag_test" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> What am I doing wrong?

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• How do I get a Java to call data from the Internet? Where to even start??

  - by cdg

  Hello oh great wizards of all things android. I really need your help. Mostly because my little brain just doesn't know were to start. I am trying to pull data from the internet to make a widget for the home screen. I have the layout built: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/Layout" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/widget_bg_normal" android:clipChildren="false" > <TextView android:id="@+id/text_view" android:layout_width="100px" android:layout_height="wrap_content" android:paddingTop="18px" android:layout_centerHorizontal="true" android:textSize="8px" android:text="158x154 Image downloaded from the internet goes here. Needs to be updated every evening at midnight or unless the button below is pressed. Now if I could only figure out exactly how to do this, life would be good." /> <Button android:id="@+id/new_button" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Get New" android:layout_below="@+id/scroll_image" android:layout_centerHorizontal="true" android:padding="0px" android:textSize="10px" android:height="8px" android:includeFontPadding="false" /> </RelativeLayout> Got the provider xml bulit: <?xml version="1.0" encoding="utf-8"?> <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android" android:minWidth="150dip" android:minHeight="150dip" android:updatePeriodMillis="10000" android:initialLayout="@layout/widget" /> The Manifest works great. <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.dge.myandroid" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".myactivty" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <!-- Widget --> <receiver android:name=".mywidget" android:label="@string/app_name" > <intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE" /> </intent-filter> <meta-data android:name="android.appwidget.widgetprovider" android:resource="@xml/widgetprovider" /> </receiver> <!-- Widget End --> </application> <uses-permission android:name="android.permission.INTERNET" /> <uses-sdk android:minSdkVersion="7" /> </manifest> The data it is calling looks something like this when it is called. It basically goes to a website that uses php to random the image: <html><body bgcolor="#000000">center> <a href="http://www.website.com" target="_blank"> <img border="0" src="http://www.webiste.com//0.gif"></a> <img src="http://www.webiste.com" style="border:none;" /> </center></body></html> But here is were I am stuck. I just don't know where to start at all. The java is so far beyond my little head that I don't know what to do. package com.dge.myandroid; import android.appwidget.AppWidgetProvider; public class mywidget extends AppWidgetProvider { } The wiki example just confused me more. I just don't know where to begin. Please help.

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• Clipplanes, vertex shaders and hardware vertex processing in Direct3D 9

  - by Igor

  Hi, I have an issue with clipplanes in my application that I can reproduce in a sample from DirectX SDK (February 2010). I added a clipplane to the HLSLwithoutEffects sample: ... D3DXPLANE g_Plane( 0.0f, 1.0f, 0.0f, 0.0f ); ... void SetupClipPlane(const D3DXMATRIXA16 & view, const D3DXMATRIXA16 & proj) { D3DXMATRIXA16 m = view * proj; D3DXMatrixInverse( &m, NULL, &m ); D3DXMatrixTranspose( &m, &m ); D3DXPLANE plane; D3DXPlaneNormalize( &plane, &g_Plane ); D3DXPLANE clipSpacePlane; D3DXPlaneTransform( &clipSpacePlane, &plane, &m ); DXUTGetD3D9Device()->SetClipPlane( 0, clipSpacePlane ); } void CALLBACK OnFrameMove( double fTime, float fElapsedTime, void* pUserContext ) { // Update the camera's position based on user input g_Camera.FrameMove( fElapsedTime ); // Set up the vertex shader constants D3DXMATRIXA16 mWorldViewProj; D3DXMATRIXA16 mWorld; D3DXMATRIXA16 mView; D3DXMATRIXA16 mProj; mWorld = *g_Camera.GetWorldMatrix(); mView = *g_Camera.GetViewMatrix(); mProj = *g_Camera.GetProjMatrix(); mWorldViewProj = mWorld * mView * mProj; g_pConstantTable->SetMatrix( DXUTGetD3D9Device(), "mWorldViewProj", &mWorldViewProj ); g_pConstantTable->SetFloat( DXUTGetD3D9Device(), "fTime", ( float )fTime ); SetupClipPlane( mView, mProj ); } void CALLBACK OnFrameRender( IDirect3DDevice9* pd3dDevice, double fTime, float fElapsedTime, void* pUserContext ) { // If the settings dialog is being shown, then // render it instead of rendering the app's scene if( g_SettingsDlg.IsActive() ) { g_SettingsDlg.OnRender( fElapsedTime ); return; } HRESULT hr; // Clear the render target and the zbuffer V( pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_ARGB( 0, 45, 50, 170 ), 1.0f, 0 ) ); // Render the scene if( SUCCEEDED( pd3dDevice->BeginScene() ) ) { pd3dDevice->SetVertexDeclaration( g_pVertexDeclaration ); pd3dDevice->SetVertexShader( g_pVertexShader ); pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof( D3DXVECTOR2 ) ); pd3dDevice->SetIndices( g_pIB ); pd3dDevice->SetRenderState( D3DRS_CLIPPLANEENABLE, D3DCLIPPLANE0 ); V( pd3dDevice->DrawIndexedPrimitive( D3DPT_TRIANGLELIST, 0, 0, g_dwNumVertices, 0, g_dwNumIndices / 3 ) ); pd3dDevice->SetRenderState( D3DRS_CLIPPLANEENABLE, 0 ); RenderText(); V( g_HUD.OnRender( fElapsedTime ) ); V( pd3dDevice->EndScene() ); } } When I rotate the camera I have different visual results when using hardware and software vertex processing. In software vertex processing mode or when using the reference device the clipping plane works fine as expected. In hardware mode it seems to rotate with the camera. If I remove the call to RenderText(); from OnFrameRender then hardware rendering also works fine. Further debugging reveals that the problem is in ID3DXFont::DrawText. I have this issue in Windows Vista and Windows 7 but not in Windows XP. I tested the code with the latest NVidia and ATI drivers in all three OSes on different PCs. Is it a DirectX issue? Or incorrect usage of clipplanes? Thanks Igor

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• Add rss xmlns namespace definition to a php simplexml document?

  - by talkingnews

  I'm trying to create an itunes-valid podcast feed using php5's simplexml: <?php $xml_string = <<<XML <?xml version="1.0" encoding="UTF-8"?> <channel> </channel> XML; $xml_generator = new SimpleXMLElement($xml_string); $tnsoundfile = $xml_generator->addChild('title', 'Main Title'); $tnsoundfile->addChild('itunes:author', "Author", ' '); $tnsoundfile->addChild('category', 'Audio Podcasts'); $tnsoundfile = $xml_generator->addChild('item'); $tnsoundfile->addChild('title', 'The track title'); $enclosure = $tnsoundfile->addChild('enclosure'); $enclosure->addAttribute('url', 'http://test.com'); $enclosure->addAttribute('length', 'filelength'); $enclosure->addAttribute('type', 'audio/mpeg'); $tnsoundfile->addChild('itunes:author', "Author", ' '); header("Content-Type: text/xml"); echo $xml_generator->asXML(); ?> It doesn't validate, because I've got to put the line: <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"> as per http://www.apple.com/itunes/podcasts/specs.html. So the output SHOULD be: <?xml version="1.0" encoding="UTF-8"?> <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"> <channel> etc. I've been over and over the manual and forums, just can't get it right. If I put, near the footer: header("Content-Type: text/xml"); echo '<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">'; echo $xml_generator->asXML(); ?> Then it sort of looks right in firefox and it doesn't complain about undefined namespaces anymore, but feedvalidator complains that line 1, column 77: XML parsing error: :1:77: xml declaration not at start of external entity [help] because the document now starts: <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"><?xml version="1.0" encoding="UTF-8"?> and not <?xml version="1.0" encoding="UTF-8"?><rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"> Thank you in advance.

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• Rewrite Url with apache2

  - by dhalsim

  Hi, I'm experimenting with CodeIgniter PHP framework, this framework works like: http://localhost:7777/~dhalsim/ci/index.php/blog So, I tried to remove index.php part from there. So far I do these: make $config['index_page'] = "index.php"; to $config['index_page'] = ""; make $config['uri_protocol'] = "REQUEST_URI"; from $config['uri_protocol'] = "AUTO"; enable apache mod_rewrite by "a2enmod rewrite" put a .htaccess file to /ci directory: RewriteEngine on RewriteBase / RewriteCond %{REQUEST_URI} ^system.* RewriteRule ^(.*)$ /index.php/$1 [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php?/$1 [L] And of course restart apache server Here is my apache logs with these configurations: 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (3) [perdir /home/dhalsim/public_html/ci/] strip per-dir prefix: /home/dhalsim/public_html/ci/blog -> blog 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (3) [perdir /home/dhalsim/public_html/ci/] applying pattern '^(.*)$' to uri 'blog' 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (4) [perdir /home/dhalsim/public_html/ci/] RewriteCond: input='/~dhalsim/ci/blog' pattern='^system.*' => not-matched 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (3) [perdir /home/dhalsim/public_html/ci/] strip per-dir prefix: /home/dhalsim/public_html/ci/blog -> blog 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (3) [perdir /home/dhalsim/public_html/ci/] applying pattern '^(.*)$' to uri 'blog' 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (4) [perdir /home/dhalsim/public_html/ci/] RewriteCond: input='/home/dhalsim/public_html/ci/blog' pattern='!-f' => matched 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (4) [perdir /home/dhalsim/public_html/ci/] RewriteCond: input='/home/dhalsim/public_html/ci/blog' pattern='!-d' => matched 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (2) [perdir /home/dhalsim/public_html/ci/] rewrite 'blog' -> 'index.php?/blog' 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (3) split uri=index.php?/blog -> uri=index.php, args=/blog 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (3) [perdir /home/dhalsim/public_html/ci/] add per-dir prefix: index.php -> /home/dhalsim/public_html/ci/index.php 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (2) [perdir /home/dhalsim/public_html/ci/] trying to replace prefix /home/dhalsim/public_html/ci/ with / 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (5) strip matching prefix: /home/dhalsim/public_html/ci/index.php -> index.php 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (4) add subst prefix: index.php -> /index.php 127.0.0.1 - - [17/Jul/2009:02:21:41 +0300] [localhost/sid#7f48e8ad2968][rid#7f48e8e634c8/initial] (1) [perdir /home/dhalsim/public_html/ci/] internal redirect with /index.php [INTERNAL REDIRECT] Here is the result in Firefox: 404 Not Found: The requested URL /index.php was not found on this server. So, what should I do (or where am I wrong) to get work these URLs? http://localhost:7777/~dhalsim/ci/blog/ instead of http://localhost:7777/~dhalsim/ci/index.php/blog/

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• CSS Background image arbitrarily not getting requested at all

  - by Pekka

  I`m in the process of building a template for Redmine (a project management system based on Ruby on Rails.) Ruby is running on a virtual server from a Bitnami.org installation package. The OS is Windows. The template essentially consists of a styles.css file. In that file, I have the following line: #header { padding: 0px; padding-top: 48px; background-color: #62DFFF; background-image: url(../images/bkg.jpg); background-position: center bottom; background-repeat: repeat-x; height:150px; } It's a header element with a background image. The problem: This background image arbitrarily appears and disappears when reloading the page. It is more often missing than it is not. Say you reload the page in your browser ten times in twenty seconds; the image will appear in two instances, and be missing in the 18 others. I would have put this down to server problems, but the weird thing is that when it's missing, the request for the image doesn't appear in Firebug's net tab at all. Even if it were cached, the request should be there, shouldn't it? Raw screenshots of the identical page on two reloads: I am 100% sure the CSS file does not change in between. I have examined both instances with Firebug and the CSS is identical. When I change the image's URL by editing the style declaration in firebug to bkg.jpg?xyz=123445 then the image will get loaded, which is making me think this must be a server problem. It happens in both Firefox and Chrome so it must be something basic I'm overlooking. What could be causing a browser not to load a resource at all? I have zero idea about Ruby nor Rails - getting Redmine running and customized is all I have ever had to do with this platform - so I don't really know where to start debugging. Apache's, Mongrel's and Redmine's error logs look fine, though. And then again, this looks like a browser issue. I'm stumped.

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• C# HtmlRequest and Javascript

  - by TechByte

  Is there anyway to get the same web source with c# as using Firebug? My source code is shown below. When I saved this, loaded with Firefox I couldn't get the same source as with Firebug. Are there any libraries that can help me to get all data? <html lang="pl" xml:lang="pl" xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns:og="http://ogp.me/ns#"> <head> <meta property="og:title" content="Mitchel Official FanPage "/><meta property="og:type" content="website"/><meta property="og:url" content="http://facebook.com/MitchelOfficiall"/> <meta property="og:locale" content="pl_PL"/><meta property="og:site_name" content="Mitchel Official FanPage "/><meta property="og:description" content="Mitchel Official FanPage "/> <meta content="pl" http-equiv="Content-Language" /> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> <meta content="text/javascript" http-equiv="Content-Script-Type" /> <title>Mitchel Official FanPage </title> <style> body { overflow: hidden; } </style> </head> <body> <div id="fb-root"> </div> <script> window.fbAsyncInit = function() { FB.init({appId: '0', status: true, cookie: true,xfbml: true}); FB.Event.subscribe("edge.create", function(targetUrl) { save(1); }); FB.Event.subscribe("edge.remove", function(targetUrl) { save(0); }); }; (function() { var e = document.createElement('script'); e.async = true; e.src = 'http://connect.facebook.net/pl_PL/all.js'; document.getElementById('fb-root').appendChild(e); }()); function save(x) { setTimeout('save2('+x+')',1000); } function save2(x) { document.location='http://www.likeplus.eu/post/saver?l=pl&t=112499|71272|00cb6c3576a64115878087272c970f751a0418f2e3d7440ca7c84c70b1d91ddb|8904e5cf28544785a42366aa89401017|'+x+'&h='+document.domain; } </script> <div class="fb-like" data-href="http://facebook.com/MitchelOfficiall" data-layout="button_count" data-send="false" data-show-faces="false" data-width="120"></div> </body> </html>

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• How can I fix the website's splash page to work in IE8 and below?

  - by Abriel

  I have been trying to figure out for the longest time how I can get the splash page on this website to work correctly in IE8 and below? Right now, it works on all the other browsers (Firefox, Chrome, Safari). Here is the website: http://gds.parkland.edu/student/fall10/gds220/ashipley/p2/final_revised/index.html jQuery code: /* Sliding Affect Splash Page */ $(function() { $('.box').each(function() { var $this = $(this); $.data(this, 'css', { width: $this.css('width'), background: $this.css('background-image') }); }); }); function restore() { $('.box').each(function() { var orig = $.data(this, 'css'); $(this).animate({ width: orig.width },{queue:false}); $(this).css({backgroundImage: orig.background}); }); } /* box 1 */ function boxHover(){ $('.box').stop().animate({'width' : '596px'},{queue:false}); } function box1master(){ $('.box2').css({backgroundImage: 'url(images/splash/zatgun_midtop.jpg)'}); $('.box3').css({backgroundImage: 'url(images/splash/zatgun_midbottom.jpg)'}); $('.box4').css({backgroundImage: 'url(images/splash/zatgun_bottom.jpg)'}); } function box2master(){ $('.box1').css({backgroundImage: 'url(images/splash/bryan_top.jpg)'}); $('.box3').css({backgroundImage: 'url(images/splash/bryan_midbottom.jpg)'}); $('.box4').css({backgroundImage: 'url(images/splash/bryan_bottom.jpg)'}); } function box3master(){ $('.box1').css({backgroundImage:'url(images/splash/galleries_top.jpg)'}); $('.box2').css({backgroundImage: 'url(images/splash/galleries_midtop.jpg)'}); $('.box4').css({backgroundImage: 'url(images/splash/galleries_bottom.jpg)'}); } function box4master(){ $('.box1').css({backgroundImage: 'url(images/splash/contact_top.jpg)'}); $('.box2').css({backgroundImage: 'url(images/splash/contact_midtop.jpg)'}); $('.box3').css({backgroundImage: 'url(images/splash/contact_midbottom.jpg)'}); } $(document).ready(function(){ $('.box1').hover(function(){ boxHover(); box1master(); }, function(){ restore(); }); $('.box2').hover(function(){ boxHover(); box2master(); }, function(){ restore(); }); $('.box3').hover(function(){ boxHover(); box3master(); }, function(){ restore(); }); $('.box4').hover(function(){ boxHover(); box4master(); }, function(){ restore(); }); }); I wonder if I could change the spacing in-between each of the boxes using jQuery or if I somehow have to do this in the CSS/HTML?

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• Creating Persistent Drive Labels With UDEV Using /dev/disk/by-path

  - by Matt

  I have a new BackBlaze Pod (BackBlaze Pod 2.0). It has 45 3TB drives and they when I first set it up they were labeled /dev/sda through /dev/sdz and /dev/sdaa through /dev/sdas. I used mdadm to setup three really big 15 drive RAID6 arrays. However, since first setup a few weeks ago I had a couple of the hard drives fail on me. I've replaced them but now the arrays are complaining because they can't find the missing drives. When I list the the disks... ls -l /dev/sd* I see that /dev/sda /dev/sdf /dev/sdk /dev/sdp no longer appear and now there are 4 new ones... /dev/sdau /dev/sdav /dev/sdaw /dev/sdax I also just found that I can do this... ls -l /dev/disk/by-path/ total 0 lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:02:04.0-scsi-0:0:0:0 -> ../../sdau lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:1:0:0 -> ../../sdb lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:2:0:0 -> ../../sdc lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:3:0:0 -> ../../sdd lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-0:4:0:0 -> ../../sde lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:02:04.0-scsi-2:0:0:0 -> ../../sdae lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:1:0:0 -> ../../sdg lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:2:0:0 -> ../../sdh lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:3:0:0 -> ../../sdi lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-2:4:0:0 -> ../../sdj lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:02:04.0-scsi-3:0:0:0 -> ../../sdav lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:1:0:0 -> ../../sdl lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:2:0:0 -> ../../sdm lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:3:0:0 -> ../../sdn lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:02:04.0-scsi-3:4:0:0 -> ../../sdo lrwxrwxrwx 1 root root 10 Sep 19 18:08 pci-0000:04:04.0-scsi-0:0:0:0 -> ../../sdax lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:1:0:0 -> ../../sdq lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:2:0:0 -> ../../sdr lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:3:0:0 -> ../../sds lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-0:4:0:0 -> ../../sdt lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:0:0:0 -> ../../sdu lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:1:0:0 -> ../../sdv lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:2:0:0 -> ../../sdw lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:3:0:0 -> ../../sdx lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-2:4:0:0 -> ../../sdy lrwxrwxrwx 1 root root 9 Sep 19 18:08 pci-0000:04:04.0-scsi-3:0:0:0 -> ../../sdz I didn't list them all....you can see the problem above. They're sorted by scsi id here but sda is missing...replaced by sdau...etc... So obviously the arrays are complaining. Is it possible to get Linux to reread the drive labels in the correct order or am I screwed? My initial design with 15 drive arrays is not ideal. With 3TB drives the rebuild times were taking 3 or 4 days....maybe more. I'm scrapping the whole design and I think I am going to go with 6 x 7 RAID5 disk arrays and 3 hot spares to make the arrays a bit easier to manage and shorten the rebuild times. But I'd like to clean up the drive labels so they aren't out of order. I haven't figured out how to do this yet. Does anyone know how to get this straightened out? Thanks, Matt

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• Enabling browser caching via java

  - by Franz See

  Good day, I am using CacheFilter to filter a certain path to my server (which outputs an image stream to the response stream). And I've configured it in my web.xml as follows: <filter> <filter-name>imagesCache</filter-name> <filter-class>com.samaxes.cachefilter.presentation.CacheFilter</filter-class> <init-param> <param-name>privacy</param-name> <param-value>public</param-value> </init-param> <init-param> <param-name>expirationTime</param-name> <param-value>2592000</param-value> </init-param> </filter> ... <filter-mapping> <filter-name>imagesCache</filter-name> <url-pattern>/my/path/*</url-pattern> </filter-mapping> Using my firefox, if I access my url via the address bar, it hits the server the first time but uses the cache during succeeding calls. However, if the url is inside my page ( i.e. <img src="..."/> ), it seems to hit the server all the time. [EDIT] After a few more testing, accessing my image via the address bar does not work all the time. But caching does seem to work more often with it than . As to whether it really, I am not sure. Additional Info: my path is something like /my/path?then=some&query=strings. Notice that it doesn't have an extension (i.e. gif, png, jpeg ) but it's mimetype is set properly ( image/gif, image/png, image/jpeg ). I am not sure if the lack of extension or the presence of the query strings have any impact. (Also, another note. though my url have query strings, I am using the same uri + query string over and over again with my tests). Any ideas why? Thanks

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• My google map android app keeps crashing

  - by Manny264

  I have followed about two tutorials from vogella and some other tutorial that looked similar...very similar but to no avail. I load the app on my nexus 7 and it just crashes "Unfortunately MyMapView has stopped working" on launch.This is the manifest: ` <uses-sdk android:minSdkVersion="17" android:targetSdkVersion="17" /> <uses-feature android:glEsVersion="0x00020000" android:required="true"/> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <uses-library android:name="com.google.android.maps" /> <activity android:name="com.macmozart.mymapview.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AIzaSyBZ1Bt7rjB863Jy-B05zls6k8XZsBGQ6-4" /> </application> ` Followed by my main layout: <fragment android:id="@+id/map" android:layout_width="match_parent" android:layout_height="match_parent" class="com.google.android.gms.maps.MapFragment" /> and finally my java class: package com.macmozart.mymapview; import android.app.Activity; import android.os.Bundle; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.MapFragment; import com.google.android.gms.maps.model.BitmapDescriptorFactory; import com.google.android.gms.maps.model.LatLng; import com.google.android.gms.maps.model.Marker; import com.google.android.gms.maps.model.MarkerOptions; import com.google.android.maps.*; public class MainActivity extends Activity { static final LatLng HAMBURG = new LatLng(53.558, 9.927); static final LatLng KIEL = new LatLng(53.551, 9.993); private GoogleMap map; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)) .getMap(); if (map != null) { Marker hamburg = map.addMarker(new MarkerOptions() .position(HAMBURG).title("Hamburg")); Marker kiel = map.addMarker(new MarkerOptions() .position(KIEL) .title("Kiel") .snippet("Kiel is cool") .icon(BitmapDescriptorFactory .fromResource(R.drawable.ic_launcher))); map.moveCamera(CameraUpdateFactory.newLatLngZoom(HAMBURG, 15)); // Zoom in, animating the camera. map.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null); } } } Any idea what im doing wrong I really need this to work

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• jQuery .ajax call to bit.ly returns results in IE but not FF or Chrome

  - by Ian Quigley

  I am trying to call to the bit.ly URL shortening service using jQuery with an .ajax call. <html><head> <script type="text/javascript" src="http://www.twipler.com/settings/scripts/jquery.1.4.min.js"></script> <script type="text/javascript"> jQuery.fn.shorten = function(url) { var resultUrl = url; $.ajax( { url: "http://api.bit.ly/shorten?version=2.0.1&login=twipler&apiKey=R_4e618e42fadbb802cf95c6c2dbab3763&longUrl=" + url, async: false, dataType: 'json', data: "", type: "GET", success: function (json) { resultUrl = json.results[url].shortUrl; } }); return resultUrl; } ; </script></head><body> <a href="#" onclick="alert($().shorten('http://amiconnectedtotheinternet.com'));"> Shorten</a> </body> </html> This works in IE8 but does not work in FireFox (3.5.9) nor in Chrome. In both cases 'json' is null. Headers in IE8 GET http://api.bit.ly/shorten?ver..[SNIP]..dtotheinternet.com HTTP/1.1 Accept: application/json, text/javascript, */* Accept-Language: en-US Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; Media Center PC 6.0; InfoPath.2; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30729) Host: api.bit.ly Connection: Keep-Alive Headers in Chrome GET http://api.bit.ly/shorten?versio..[SNIP]..nectedtotheinternet.com HTTP/1.1 Host: api.bit.ly Connection: keep-alive User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.1.249.1045 Safari/532.5 Origin: file:// Accept: application/json, text/javascript, */* Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 So the only obvious difference is that Chrome is sending "Origin: file://" and I've no idea how to stop it doing that.

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• camera preview portrait problem in android application

  - by sujitjitu

  Hi this is my code for simple camera application in android .i have copied it from unlocking android e-book . Everything is working fine in emulator but when i am installing it in device the camera preview is working only in landscape mode. I have tried many thing but could not find any solution. Please see the code below and if you have any solution for it than it will be helpful to me. this is the code....... public class SimpleCamera extends Activity implements SurfaceHolder.Callback { private Camera camera; private boolean isPreviewRunning = false; private SimpleDateFormat timeStampFormat = new SimpleDateFormat("yyyyMMddHHmmssSS"); private SurfaceView surfaceView; private SurfaceHolder surfaceHolder; private Uri targetResource = Media.EXTERNAL_CONTENT_URI; public void onCreate(Bundle icicle) { super.onCreate(icicle); Window window = getWindow(); window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().setFormat(PixelFormat.TRANSLUCENT); setContentView(R.layout.main); surfaceView = (SurfaceView)findViewById(R.id.surface); surfaceHolder = surfaceView.getHolder(); surfaceHolder.getSurface(); // Surface.setOrientation(Display.DEFAULT_DISPLAY,Surface.ROTATION_180); //didn't work at all surfaceHolder.addCallback(this); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public boolean onCreateOptionsMenu(android.view.Menu menu) { MenuItem item = menu.add(0, 0, 0, "View Pictures"); item.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { Intent intent = new Intent(Intent.ACTION_VIEW, targetResource); startActivity(intent); return true; } }); return true; } protected void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); } Camera.PictureCallback mPictureCallbackRaw = new Camera.PictureCallback() { public void onPictureTaken(byte[] data, Camera c) { camera.startPreview(); } }; Camera.ShutterCallback mShutterCallback = new Camera.ShutterCallback() { public void onShutter() { } }; public boolean onKeyDown(int keyCode, KeyEvent event) { ImageCaptureCallback camDemo = null; if(keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { try { String filename = timeStampFormat.format(new Date()); ContentValues values = new ContentValues(); values.put(Media.TITLE, filename); values.put(Media.DESCRIPTION, "Image from Android Emulator"); Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values); camDemo = new ImageCaptureCallback( getContentResolver().openOutputStream(uri)); } catch(Exception ex ){ } } if (keyCode == KeyEvent.KEYCODE_BACK) { return super.onKeyDown(keyCode, event); } if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { camera.takePicture(mShutterCallback, mPictureCallbackRaw, camDemo); return true; } return false; } protected void onResume() { Log.e(getClass().getSimpleName(), "onResume"); super.onResume(); } protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); } protected void onStop() { super.onStop(); } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { if (isPreviewRunning) { camera.stopPreview(); } Camera.Parameters p = camera.getParameters(); p.setPreviewSize(w,h); //p.set("rotation","90"); // it didn't work //P.setRotation(90); // only work in 2.0 or later SDK but i am using 1.5 camera.setParameters(p); try { camera.setPreviewDisplay(holder); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } camera.startPreview(); isPreviewRunning = true; } public void surfaceCreated(SurfaceHolder holder) { camera = Camera.open(); } public void surfaceDestroyed(SurfaceHolder holder) { camera.stopPreview(); isPreviewRunning = false; camera.release(); } } any help will be appreciated..

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• javascript select box hanging on second select in ie7

  - by bsandrabr

  I have a drop down select box inside a div. When the user clicks on change, a dropdown box appears next to the change/submit button and the user makes a selection which then updates the db and the selection appears instead of the dropdown. All works fine in IE8 and firefox but in IE7 it allows one selection (there are several identical dropdowns) but the second time a selection is made it hangs on please wait. This is the relevant code <td width=200> <input type="button" onclick="startChanging(this)" value="Change" /></td> <script type="text/javascript"> var selectBox, isEditing = false; var recordvalue; if( window.XMLHttpRequest ) { recordvalue = new XMLHttpRequest(); } else if( window.ActiveXObject ) { try { recordvalue = new ActiveXObject('Microsoft.XMLHTTP'); } catch(e) {} } window.onload = function () { selectBox = document.getElementById('changer'); selectBox.id = ''; selectBox.parentNode.removeChild(selectBox); }; function startChanging(whatButton) { if( isEditing && isEditing != whatButton ) { return; } //no editing of other entries if( isEditing == whatButton ) { changeSelect(whatButton); return; } //this time, act as "submit" isEditing = whatButton; whatButton.value = 'Submit'; var theRow = whatButton.parentNode.parentNode; var stateCell = theRow.cells[3]; //the cell that says "present" stateCell.className = 'editing'; //so you can use CSS to remove the background colour stateCell.replaceChild(selectBox,stateCell.firstChild); //PRESENT is replaced with the select input selectBox.selectedIndex = 0; } function changeSelect(whatButton) { isEditing = true; //don't allow it to be clicked until submission is complete whatButton.value = 'Change'; var stateCell = selectBox.parentNode; var theRow = stateCell.parentNode; var editid = theRow.cells[0].firstChild.firstChild.nodeValue; //text inside the first cell var value = selectBox.firstChild.options[selectBox.firstChild.selectedIndex].value; //the option they chose selectBox.parentNode.replaceChild(document.createTextNode('Please wait...'),selectBox); if( !recordvalue ) { //allow fallback to basic HTTP location.href = 'getupdate.php?id='+editid+'&newvalue='+value; } else { recordvalue.onreadystatechange = function () { if( recordvalue.readyState != 4 ) { return; } if( recordvalue.status >= 300 ) { alert('An error occurred when trying to update'); } isEditing = false; newState = recordvalue.responseText.split("|"); stateCell.className = newState[0]; stateCell.firstChild.nodeValue = newState[1] || 'Server response was not correct'; }; recordvalue.open('GET', "getupdate.php?id="+editid+"&newvalue="+value, true); recordvalue.send(null); } } </script> If anyone has any idea why this is happening I'd be very grateful

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• JavaScript Image zoom with CSS3 Transforms, How to calculate Origin? (with example)

  - by Sunday Ironfoot

  I'm trying to implement an image zoom effect, a bit like how the zoom works with Google Maps, but with a grid of fix position images. I've uploaded an example of what I have so far here: http://www.dominicpettifer.co.uk/Files/MosaicZoom.html (uses CSS3 transforms so only works with Firefox, Opera, Chrome or Safari) Use your mouse wheel to zoom in/out. The HTML source is basically an outer div with an inner-div, and that inner-div contains 16 images arranged using absolute position. It's going to be a Photo Mosaic basically. I've got the zoom bit working using CSS3 transforms: $(this).find('div').css('-moz-transform', 'scale(' + scale + ')'); ...however, I'm relying on the mouse X/Y position on the outer div to zoom in on where the mouse cursor is, similar to how Google Maps functions. The problem is that if you zoom right in on an image, move the cursor to the bottom/left corner and zoom again, instead of zooming to the bottom/left corner of the image, it zooms to the bottom/left of the entire mosaic. This has the effect of appearing to jump about the mosaic as you zoom in closer while moving the mouse around, even slightly. That's basically the problem, I want the zoom to work exactly like Google Maps where it zooms exactly to where your mouse cursor position is, but I can't get my head around the Maths to calculate the transform-origin: X/Y values correctly. Please help, been stuck on this for 3 days now. Here is the full code listing for the mouse wheel event: var scale = 1; $("#mosaicContainer").mousewheel(function(e, delta) { if (delta > 0) { scale += 1; } else { scale -= 1; } scale = scale < 1 ? 1 : (scale > 40 ? 40 : scale); var x = e.pageX - $(this).offset().left; var y = e.pageY - $(this).offset().top; $(this).find('div').css('-moz-transform', 'scale(' + scale + ')') .css('-moz-transform-origin', x + 'px ' + y + 'px'); return false; });

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• Ajax problem not displaying data using multiple javascript calls...

  - by Ronedog

  I'm writing an app that uses ajax to retrieve data from a mysql db using php. Because of the nature of the app, the user clicks an href link that has an "onclick" event used to call the javascript/ajax. I'm retrieving the data from mysql, then calling a separate php function which creates a small html table with the necessary data in it. The new table gets passed back to the responseText and is displayed inside a div tag. The tables only have around 10-20 rows of data in them. This functionality is working fine and displays the data in html form exactly as it needs to be on the page. The problem is this. the HREF "onclick" event needs to run multiple scripts one right after the other. The first script updates the "existing" data and inside the "update_existing" function is a call to refresh a section of the page with the updated HTML from the responseText. Then when that is done a "display_html" function is called which also updates a different section of the page with it's newly created HTML table. The event looks like this: Update This string gets built dynamically using php with parameters supplied, but for this example I simply took the parameters out so it didn't get confusing. The "update_existion() function actually calls the display_html() function which updates a section of the page as needed. I need to update a different section of the page on the same click of the mouse right after the update, which is why I'm calling the display_html() again, right after it. The problem is only the last call is being updated on my screen. In other words, the 2nd function call "display_html()" executes and displays the refreshed data just fine, but the previous call to update_existing() runs and updates the database properly, but doesn't display on the screen unless I press the browsers "refresh" button, which of course displays the new data exactly how I want it to, but I don't want the users to have to press the "refresh" button. I tried adding multiple "display_html() calls one right after the other, separating all of them with the semicolon and learned that only the very last function call actually refreshed the div element on the html page with the table information, although all the previous display_html() calls worked, they couldn't be seen on the page without a refresh of the browser. Is this a problem with javascript, or the ajax call, or is this a limitation in the DOM that only allows one element to be updated at a time. The ajax call is asynchroneous, but I've tried both, only async works period. This is the same in both Firefox and Internet Explorer Any ideas what's going on and how to get around it so I can run these multiple scripts?

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• jQuery ajaxSubmit ignored by IE8

  - by George Burrell

  Hi there, I am combing the jQuery validation plug-in with the jQuery Form Plugin to submit the form via AJAX. This works perfectly in Firefox & Chrome, but (as usual) Internet Explorer is being a pain. For reasons that are alluding me, IE is ignoring the ajaxSubmit, as a result it submits the form in the normal fashion. I've followed the validation plug-in's documentation when constructing my code: JS: $(document).ready(function() { var validator = $("#form_notify").validate({ messages: { email: { required: 'Please insert your email address. Without your email address we will not be able to contact you!', email:'Please enter a valid email address. Without a valid email address we will not be able to contact you!' } }, errorLabelContainer: "#error", success: "valid", submitHandler: function(form) {$(form).ajaxSubmit();} }); $('#email').blur(function() { if (validator.numberOfInvalids() 0) { $("#label").addClass("label_error"); return false; } else {$("#label").removeClass("label_error");} }); $('#form_notify').submit(function() { if (validator.numberOfInvalids() == 0) { $(this).fadeOut('fast', function() {$('#thank-you').fadeIn();}); return true; } return false; }); }); Form HTML: <form id="form_notify" class="cmxform" name="form_notify" action="optin.pl" method="get"> <fieldset> <div class="input"> <label id="label" for="email">Email Address:</label> <input type="text" id="email" name="email" value="" title="email address" class="{required:true, email:true}"/> <div class="clearfix"></div> </div> <input type="hidden" name="key" value="sub-745-9.224;1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0;;subscribe-224.htm"> <input type="hidden" name="followup" value="19"> <input type="submit" name="submit" id="submit-button" value="Notify Me"> <div id="error"></div> </fieldset> </form> I can't understand what is causing IE to act differently, any assistance would be greatly appreciated. I can provide more information if needed. Thanks in advance!

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• PHP script works fine until I send it a parameter from HTTPService in Flash Builder 4?

  - by ben

  I'm using a PHP script to read an RSS feed in my Flex 4 app. The script works when I put the url of the feed in the actual script, but I can't get it to work when I try to send the URL as a parameter from a HTTPService in Flex. Can anyone tell me what I'm doing wrong? Here is the HTTPService from Flex 4 that I'm using: <mx:HTTPService url="http://talk.6te.net/proxy.php" id="proxyService" method="POST" result="rssResult()" fault="rssFault()"> <mx:request> <url> http://feeds.feedburner.com/nah_right </url> </mx:request> </mx:HTTPService> This is the script that works: <?php $ch = curl_init(); $timeout = 30; $userAgent = $_SERVER['HTTP_USER_AGENT']; curl_setopt($ch, CURLOPT_URL, "http://feeds.feedburner.com/nah_right"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); curl_setopt($ch, CURLOPT_USERAGENT, $userAgent); $response = curl_exec($ch); if (curl_errno($ch)) { echo curl_error($ch); } else { curl_close($ch); echo $response; } ?> But this is what I actually want to use, but it doesn't work: <?php $ch = curl_init(); $timeout = 30; $userAgent = $_SERVER['HTTP_USER_AGENT']; curl_setopt($ch, CURLOPT_URL, $_REQUEST['url']); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); curl_setopt($ch, CURLOPT_USERAGENT, $userAgent); $response = curl_exec($ch); if (curl_errno($ch)) { echo curl_error($ch); } else { curl_close($ch); echo $response; } ?> Here is the request and response output of the HTTPService from the network monitor in Flash Builder 4 (using the PHP script that doesn't work): Request: POST /proxy.php HTTP/1.1 Host: talk.6te.net User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Content-type: application/x-www-form-urlencoded Content-length: 97 url=%0A%09%09%09%09%09http%3A%2F%2Ffeeds%2Efeedburner%2Ecom%2Fnah%5Fright%0A%20%20%20%20%09%09%09 Response: HTTP/1.1 200 OK Date: Mon, 10 May 2010 03:23:27 GMT Server: Apache X-Powered-By: PHP/5.2.13 Content-Length: 15 Content-Type: text/html <url> malformed I've tried putting the URL in " " in the HTTPService, but that didn't do anything. Any help would be greatly appreciated!

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• Soft keyboard "del" key fails in EditText on Gallery widget

  - by droidful

  Hi, I am developing an application in Eclipse build ID 20090920-1017 using android SDK 2.2 and testing on a Google Nexus One. For the purposes of the tests below I am using the IME "Android keyboard" on a non-rooted phone. I have an EditText widget which exhibits some very strange behavior. I can type text, and then press the "del" key to delete that text; but after I enter a 'space' character, the "del" key will no longer remove characters before that space character. An example speaks a thousand words, so consider the following two incredibly simple applications... Example 1: An EditText in a LinearLayout widget: package com.example.linear.edit; import android.app.Activity; import android.os.Bundle; import android.view.ViewGroup.LayoutParams; import android.widget.EditText; import android.widget.Gallery; import android.widget.LinearLayout; public class LinearEdit extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LinearLayout layout = new LinearLayout(getApplicationContext()); layout.setLayoutParams(new Gallery.LayoutParams(Gallery.LayoutParams.MATCH_PARENT, Gallery.LayoutParams.MATCH_PARENT)); EditText edit = new EditText(getApplicationContext()); layout.addView(edit, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); setContentView(layout); } } Run the above application, enter text "edit example", then press the "del" key several times until the entire sentence is deleted. Everything Works fine. Now consider example 2: An EditText in a Gallery widget: package com.example.gallery.edit; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.Gallery; import android.widget.LinearLayout; public class GalleryEdit extends Activity { private final String[] galleryData = {"string1", "string2", "string3"}; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Gallery gallery = new Gallery(getApplicationContext()); gallery.setAdapter(new ArrayAdapter(getApplicationContext(), android.R.layout.simple_list_item_1, galleryData) { @Override public View getView(int position, View convertView, ViewGroup parent) { LinearLayout layout = new LinearLayout(getApplicationContext()); layout.setLayoutParams(new Gallery.LayoutParams(Gallery.LayoutParams.MATCH_PARENT, Gallery.LayoutParams.MATCH_PARENT)); EditText edit = new EditText(getApplicationContext()); layout.addView(edit, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); return layout; } }); setContentView(gallery); } } Run the above application, enter text "edit example", then press the "del" key several times. If you are getting the same problem as me then you will find that you can't deleted past the 'space' character. All is not well. If anyone could shed some light on this issue I would be most appreciative. Regards

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• i want to have some cross browser consistency on my fieldsets, do you know how can i do it?

  - by Omar

  i have this problem with fieldsets... have a look at http://i.imgur.com/IRrXB.png is it possible to achieve what i want with css??? believe me, i tried! as you can see on the img, i just want the look of the legend to be consistent across browsers, i want it to use the width of the fieldset no more (like chrome and ie) no less (like firefox), dont worry about the rounded corners and other issues, thats taken care of. heres the the core i'm using. CSS <style type="text/css"> fieldset {margin: 0 0 10px 0;padding: 0; border:1px solid silver; background-color: #f9f9f9; -moz-border-radius:5px; -webkit-border-radius:5px; border-radius:5px} fieldset p{clear:both;margin:.3em 0;overflow:hidden;} fieldset label{float:left;width:140px;display:block;text-align:right;padding-right:8px;margin-right: 2px;color: #4a4a4a;} fieldset input, fieldset textarea {margin:0;border:1px solid #ddd;padding:3px 5px 3px 5px;} fieldset legend { background: #C6D1E8; position:relative; left: -1px; margin: 0; width: 100%; padding: 0px 5px; font-size: 1.11em; font-weight: bold; text-align:left; border: 1px solid silver; -webkit-border-top-left-radius: 5px; -webkit-border-top-right-radius: 5px; -moz-border-radius-topleft: 5px; -moz-border-radius-topright: 3px; border-top-left-radius: 5px; border-top-right-radius: 5px; } #md {width: 400px;} </style> HTML <div id="md"> <fieldset> <legend>some title</legend> <p> <label>Login</label> <input type="text" /> </p> <p> <label>Password</label> <input type="text" /> </p> <p><label>&nbsp;</label> <input type="submit"> </p> </fieldset> </div>

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• Getting XML data from a external page and parsing it with PHP

  - by James P

  I'm trying to create a database of World of Warcraft gems. If I go to this page: http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=purple&searchType=items And go to View Source in Firefox, I see a tonne of XML data which is exactly what I want. I wrote up this quick script to try and parse some of it: <?php $gemUrls = array( 'Blue' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=blue&searchType=items', 'Red' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=red&searchType=items', 'Yellow' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=yellow&searchType=items', 'Meta' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=meta&searchType=items', 'Green' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=green&searchType=items', 'Orange' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=orange&searchType=items', 'Purple' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=purple&searchType=items', 'Prismatic' => 'http://www.wowarmory.com/search.xml?fl[source]=all&fl[type]=gems&fl[subTp]=purple&searchType=items' ); // Get blue gems $blueGems = file_get_contents($gemUrls['Blue']); $xml = new SimpleXMLElement($blueGems); echo $xml->items[0]->item; ?> But I get a load of errors like this: Warning: SimpleXMLElement::__construct() [simplexmlelement.--construct]: Entity: line 20: parser error : xmlParseEntityRef: no name in C:\xampp\htdocs\WoW\index.php on line 19 Warning: SimpleXMLElement::__construct() [simplexmlelement.--construct]: if(Browser.iphone && Number(getcookie2("mobIntPageVisits")) < 3 && getcookie2( in C:\xampp\htdocs\WoW\index.php on line 19 I'm not sure what's wrong. I think file_get_contents() is bringing back data that isn't XML, maybe some Javascript files judging by the iPhone parts in the errors. Is there any way to just get back the XML from that page? Without any HTML or anything? Thanks :)

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• Sening a file from memory (rather than disk) over HTTP using libcurl

  - by cinek1lol

  Hi! I would like to send pictures via a program written in C + +. - OK WinExec("C:\\curl\\curl.exe -H Expect: -F \"fileupload=@C:\\curl\\ok.jpg\" -F \"xml=yes\" -# \"http://www.imageshack.us/index.php\" -o data.txt -A \"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1\" -e \"http://www.imageshack.us\"", NULL); It works, but I would like to send the pictures from pre-loaded carrier to a variable char (you know what I mean? First off, I load the pictures into a variable and then send the variable), cause now I have to specify the path of the picture on a disk. I wanted to write this program in c++ by using the curl library, not through exe. extension. I have also found such a program (which has been modified by me a bit) #include <stdio.h> #include <string.h> #include <iostream> #include <curl/curl.h> #include <curl/types.h> #include <curl/easy.h> int main(int argc, char *argv[]) { CURL *curl; CURLcode res; struct curl_httppost *formpost=NULL; struct curl_httppost *lastptr=NULL; struct curl_slist *headerlist=NULL; static const char buf[] = "Expect:"; curl_global_init(CURL_GLOBAL_ALL); /* Fill in the file upload field */ curl_formadd(&formpost, &lastptr, CURLFORM_COPYNAME, "send", CURLFORM_FILE, "nowy.jpg", CURLFORM_END); curl_formadd(&formpost, &lastptr, CURLFORM_COPYNAME, "nowy.jpg", CURLFORM_COPYCONTENTS, "nowy.jpg", CURLFORM_END); curl_formadd(&formpost, &lastptr, CURLFORM_COPYNAME, "submit", CURLFORM_COPYCONTENTS, "send", CURLFORM_END); curl = curl_easy_init(); headerlist = curl_slist_append(headerlist, buf); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "http://www.imageshack.us/index.php"); if ( (argc == 2) && (!strcmp(argv[1], "xml=yes")) ) curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist); curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost); res = curl_easy_perform(curl); curl_easy_cleanup(curl); curl_formfree(formpost); curl_slist_free_all (headerlist); } system("pause"); return 0; }

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• Android Augmented Reality

  - by Azooz Totti

  I'm working on my first Android Augmented Reality application. The application works pretty good if the ARActivity runs as the first class (android.intent.category.LAUNCHER) in the manifest file. But when I added a splash screen which means the ARActivity will be the second to run(android.intent.category.DEFAULT), the camera seems not detecting the marker. I believe the problem is all in the manifest file. Any suggestions ? Thanks This is the manifest.xml <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.ar.armarkers" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" /> <uses-permission android:name="android.permission.CAMERA" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-feature android:name="android.hardware.camera" /> <uses-feature android:name="android.hardware.camera.autofocus" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".Splash" android:screenOrientation="landscape" android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="com.ar.armarkers.MainActivity" android:clearTaskOnLaunch="true" android:label="@string/title_activity_main" android:noHistory="true" android:screenOrientation="landscape" > <intent-filter> <action android:name="com.ar.armarkers.MAINACTIVITY" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> </activity> </application> </manifest> MainActivity.java import edu.dhbw.andar.ARObject; import edu.dhbw.andar.ARToolkit; import edu.dhbw.andar.AndARActivity; import edu.dhbw.andar.exceptions.AndARException; import edu.dhbw.andar.pub.CustomRenderer; import android.os.Bundle; import android.util.Log; public class MainActivity extends AndARActivity { private ARObject someObject; private ARToolkit artoolkit; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); CustomRenderer renderer = new CustomRenderer(); setNonARRenderer(renderer); try { artoolkit = getArtoolkit(); someObject = new CustomObject1("test", "marker16.pat", 80.0, new double[] { 0, 0 }); artoolkit.registerARObject(someObject); someObject = new CustomObject2 ("test", "marker17.patt", 80.0, new double[]{0,0}); artoolkit.registerARObject(someObject); } catch (AndARException ex) { System.out.println(""); } startPreview(); } public void uncaughtException(Thread thread, Throwable ex) { // TODO Auto-generated method stub Log.e("AndAR EXCEPTION", ex.getMessage()); finish(); } } Splash.java import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; import android.os.Bundle; import android.view.Gravity; public class Splash extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.splash); Thread timer = new Thread() { public void run() { try { sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } finally { Intent i = new Intent(getApplicationContext(), MainActivity.class); startActivity(i); } } }; timer.start(); } }

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