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  • UIWebView loading progress and adjust web page to fit the view page?

    - by user262325
    Hello everyone I am using UIWebView to load a web page. There are 2 questions: 1.It it possible to track the percentage progress when UIWebView is loading the page? 2.I know there is property scalesPageToFit scalesPageToFit A Boolean value determining whether the webpage scales to fit the view and the user can change the scale. I try to set it to YES, but it looks like that it is not in public API and my app stopped with black screen, I am not sure what is wrong? Welcome any comment Thanks interdev

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  • Drawing performance with CGImageCreateWithJPEGDataProvider?

    - by Rnegi
    I've actually curious about this for the iPhone. I am getting an MJPEG stream from a server and trying to render it natively on the iphone (without the use of safari class). Reasons for this is because the safari class while CAN render MJPEG natively, does not do so at the framerate I would like. So I tried drawing it natively, but I've come up with performance issues, namely a syncing issue between what I'm getting from the server and what I am able to draw onto the screen of the phone. (There should be a little lag, but the drift gets really bad, which is what I want to avoid). So I have a connection set up to my server and I do get the JPEGS. It's just data I insert into a NSMutableArray buffer CFMutableDataRef _t_data_ref = (CFMutableDataRef)[_buffer_array objectAtIndex:0]; //CGDataProviderRef imgDataProvider = CGDataProviderCreateWithCFData (_cf_buffer_data); CGDataProviderRef imgDataProvider = CGDataProviderCreateWithCFData(_t_data_ref); CGImageRef image = CGImageCreateWithJPEGDataProvider(imgDataProvider, NULL, true, kCGRenderingIntentDefault); CGImageRef imgRef = image; CGContextDrawImage(context, CGRectMake(0, 17, 380, 285), imgRef); CGImageRelease(image); CGDataProviderRelease(imgDataProvider); please note this is the gist of my code, but it should summarize what I am trying to accomplish with regards to drawing. Also in order to get the framerate in sync, I had to detach a separate thread that sleeps X seconds and calls [self setNeedsDisplay]. NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // Top-level pool while(1) { //[NSThread sleepForTimeInterval:TIMER_REFRESH_VALUE]; //sleep(unsigned int ); usleep(MICRO_REFRESH_VALUE); if ([_buffer_array count] > 10) { //NSLog(@"stuff %d", [_buffer_array count]); //[self setNeedsDisplay]; [self performSelectorOnMainThread:@selector(setNeedsDisplay) withObject:nil waitUntilDone:NO]; } } [pool release]; // Release the objects in the pool. My buffer of jpeg data actually fills up quite quick, but I can't seem to actually consume what i'm getting at the same rate, actually much slower. Are there any documents that can describe what kind of performance tuning I can do to make it go faster when rendering the JPEG to the screen? Or am I kind of stuck here? Thanks!

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  • Java heap keeps on shrinking! What is happening in this graph of heap size?

    - by chillitom
    Hi Guys, This is a screen shot of a JVM (win64, 6u17) running ActiveMQ, after every garbage collection the heap size is reducing. As the heap size reduces garbage collection gets more frequent and the heap reduces more quickly. Eventually the VM locks up as it's spending all it's time in GC. -Xms is the default and -Xmx is 2048mb. What is happening!!? How can I avoid this? http://imagebin.org/92614 n.b originally posted on serverfault.com, moved to stackoverflow.com as requested

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  • open new window javascript

    - by Midhat
    I have a window.open call in a page, whose window itself is opened by a window.open call. So there are 2 windows already on the screen Now On the next window.open call: IE7 opens a new window Firefox opens a new tab in the topmost parent window Chrome opens a new tab in current window Is it possible to make this behaviour same in all three browsers. (preferably like #3) Edit : my call is rly simple javascript:window.open("Attachment.aspx?docid=42")

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  • Android: SlidingDrawer disappears under SurfaceView

    - by ykrasik
    Hi, I'm trying to create a SlidingDrawer with LinearLayout content over a FrameLayout. At first it all seems fine, I get my SlidingDrawer's handle at the bottom of the screen. But then, if I start dragging the handle up and the content starts showing, it gets clipped by the border rectangle of the handle. If I drag the handle all the way up the entire content eventually gets shown, however if I now drag the handle down, it will be clipped by the border rectangle of the content. Also, if the handle is all the way up, as soon as I start dragging it the whole content disappears. I can still click on where the handle should be on the screen, drag it and the content would show, but I need to guess where the handle is. What seems to be causing this is the fact that I have a SurfaceView in the xml file just before SlidingDrawer. Removing the view from the xml solves this problem, however I need this view. Here's the xml: <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <!-- Removing this DrawView from here solves the problem --> <com.package.DrawView android:id="@+id/main" android:layout_width="fill_parent" android:layout_height="fill_parent" /> <SlidingDrawer android:id="@+id/SlidingDrawer" android:layout_width="wrap_content" android:layout_height="wrap_content" android:allowSingleTap="true" android:animateOnClick="true" android:handle="@+id/slideHandleButton" android:content="@+id/contentLayout" android:padding="10dip"> <Button android:id="@+id/slideHandleButton" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/sliding_button"> </Button> <LinearLayout android:id="@+id/contentLayout" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical"> <Button android:id="@+id/clearButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Test"> </Button> </LinearLayout> </SlidingDrawer> </FrameLayout> Java: package com.package; import android.app.Activity; import android.os.Bundle; public class SlideTest extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } } package com.package; import android.content.Context; import android.util.AttributeSet; import android.view.SurfaceView; public class DrawView extends SurfaceView { public DrawView(Context context, AttributeSet attrs) { super(context, attrs); } } Edit: I just noticed that if DrawView extends View and not SurfaceView this problem goes away. However, I'm using a dedicated drawing thread and according to the documentation (and LunarLander example) when using a dedicated drawing thread, it should draw to a SurfaceView. Any help would be greatly appreciated!

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  • How to make android app's background image repeat.

    - by virsir
    I have set a background image in my app, but the background image is small and I want it to be repeated and filled in the whole screen. What should I do <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/bg" android:tileMode="repeat">

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  • IPHONE MPMoviePlayer: Playing video under button layers that can be interacted with while video play

    - by nicholas
    I would like to have layers of buttons over video playing in the background on my IPHONE application. Basically, I'm looking to adjust the Movie Player code, in order to allow the application user to tap on different portions of the screen while a video plays and call other commands (for example a video of puppets talking, if you touch one of the puppets, the video pauses and a second (smaller) window appears with a list of information about that puppet; when you exit that list, the video continues where it was paused).

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  • Sources for iPad web programming?

    - by MikeJ
    Anyone got some good references for targeting web content to the iPad web browser? i know its still very early days but I havent got any good indicator on how to setup CSS to fix iphone/ipod touch versus the larger screen of the iPad? or do I just consider it to be like safari on the bigger Macs

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  • Android: How to prevent image from being scaled in ImageView or ImageButton?

    - by user277827
    Hi, How can I prevent my bitmap from being scaled automatically in an ImageView or ImageButton if the view or button is stretched using "fill_parent" or using "weight"? This will be useful, for example, to create a 4-button toolbar at the top of the screen where the buttons are equally spaced, but the images inside the buttons keep getting streched even if I use scaleType="center", which should prevent scaling according to the doc, but it doesn't. Any insight is appreciated! Thanks,

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  • Where is my validator?

    - by Danny Chen
    I have a validator in my page: <asp:RequiredFieldValidator ID="rfv1" runat="server" ControlToValidate="IdentifySEDSED1TxtDate" ErrorMessage="Significant Event Date 1 is missing" ValidType="SEDate">*</asp:RequiredFieldValidator> I found that in Page_Load: (below is a screen shot from the Watch Window) this.FindControl("rfv1") {Text = "*"} rfv1 The name 'rfv1' does not exist in the current context See, I can get this control with FindControl, but I can't get it using ID directly! What happens?

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  • Examples of Wizard controls

    - by Christophe Herreman
    I'm creating a Wizard control (in Flex) and wanted to look at some examples of good Wizard controls in .NET, Java or other languages. I'm especially interested in situations where next/prev steps are determined by the input of the current step. For instance, choosing one of several options in the start screen will lead you to different screens, etc Any suggestions?

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  • Python: Dennis Nedry - Security

    - by Peter Nielsen
    Has anyone seen Jurrassic Park where Dennis Nedry has protected the system with an animation that says 'You didn't say the magic word' where after the system goes down. Is it possible to do something similar ikn Python ? To describe it less humoristic: A response screen which waits for a condition fulfilled by the user. And encrypts and locks the system after a certain time. Is that possible on a linux system by the use of Python ?

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  • Safely remove window subclassing?

    - by Vegard Larsen
    I am trying to subclass the currently focused window on a Windows system using a global CBT hook. This is related to what happens in this question, but the bug is different. What happens when this subclassing is in effect, is that Opera's (version 10.50) main window is prevented from displaying. Opera has a "splash screen" where you are required to click "Start" for the main window to show that appears after Opera has not shut down properly. Whenever this window pops up, Opera's main window won't show. If Opera was shut down properly, and this splash screen does not show, the main window displays as it should. HHOOK hHook; HWND hWndSubclass = 0; void SubclassWindow(HWND hWnd) { Unsubclass(); FARPROC lpfnOldWndProc = (FARPROC)SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LPARAM)SubClassFunc); SetProp(hWnd, L"PROP_OLDWNDPROC", lpfnOldWndProc); hWndSubclass = hWnd; } void Unsubclass() { if (hWndSubclass != 0 && IsWindow(hWndSubclass)) { FARPROC lpfnOldWndProc = (FARPROC)GetProp(hWndSubclass, L"PROP_OLDWNDPROC"); RemoveProp(hWndSubclass, L"PROP_OLDWNDPROC"); SetWindowLongPtr(hWndSubclass, GWLP_WNDPROC, (LPARAM)lpfnOldWndProc); hWndSubclass = 0; } } static LRESULT CALLBACK SubClassFunc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { if (message == WM_MOVING) { // do something irrelevant } else if (message == WM_DESTROY) { Unsubclass(); } FARPROC lpfnOldWndProc = (FARPROC)GetProp(hWndSubclass, L"PROP_OLDWNDPROC"); return CallWindowProc((WNDPROC)lpfnOldWndProc, hWndSubclass, message, wParam, lParam); } static LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam) { if (nCode == HCBT_SETFOCUS && hWndServer != NULL) { SubclassWindow((HWND)wParam); } if (nCode < 0) { return CallNextHookEx(hHook, nCode, wParam, lParam); } return 0; } BOOL APIENTRY DllMain( HINSTANCE hInstance, DWORD Reason, LPVOID Reserved ) { switch(Reason) { case DLL_PROCESS_ATTACH: hInst = hInstance; return TRUE; case DLL_PROCESS_DETACH: Unsubclass(); return TRUE; } return TRUE; } My suspicion is that Opera's main window is somehow already subclassed. I imagine the following is happening: The window is created with it's own basic WndProc, and is given focus My application subclasses the window, storing the original WndProc Opera subclasses its own window When the window loses focus, I restore the original WndProc, thus ignoring the second WndProc Can this really be the case? Are there any other explanations?

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  • Where can I find an iPhone OpenGL ES Example that responds to touch?

    - by Jamey McElveen
    I would like to find an iPhone OpenGL ES Example that responds to touch. Ideally it would meet these requirements: Displays a 3D object in the center of the screen like a cube Maps a texture to the cube surfaces Should move the camera around the cube as you drag your finger Should zoom the camera in and out on the cube by pinching Optionally has a background behind the cube that wraps around the back of the camera.(for example this could create the effect of the cube being in space) Has anyone seen one or more examples that can do these or at least render the cube with the texture?

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  • Blackberry Storm - focus issue on bitmap field

    - by SWATI
    in my screen there are 3 managers h1 h2 bmpf = new BitmapField added in order like this as backgroundmanager.add(h1) backgroundmanager.add(bmpf) backgroundmanager.add(h2) add(background manager); protected boolesn navigationClick() { int index1 = h1.getFieldWithFocusIndex(); int index2 = h2.getFieldWithFocusIndex(); return true; } mow i get the focus index of all focussable fields in managers h1 and h2 but i cant get index of the bitnmapfield on focus i need to execute some code on its click what to do

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  • Appcelerator Titanium: Android SDK doesn't load

    - by Michael Gajda
    Hello! I started developing with Titanium and now I really stuck on one part. I downloaded the Adroid SDK and added the path to Titanium: /Users/michael/Downloads/android-sdk-mac_86/ I can open e.g. Kitchen Sink in the iPhone Simulator without problems, but when I want to open it in Android then my screen looks like this: Screenshot Why is down there all the time, even after 2 hours of waiting, the label "loading..." ?

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  • Any simple shape recognition libraries for Java?

    - by Phil
    I am working on a on-screen keyboard for Android, and I need to recognize starting points, turning points and end points of lines drawn by the user on the keyboard. A simple straightening function would be nice, as it is difficult to draw a perfectly straight line even with a stylus, not to mention finger-only touchscreens today. What I am trying to write is something like Swype. Any good libraries that I can use or make reference to?

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  • JFreeChart in scrollpane

    - by Fortega
    Hi, I'm having a big graph created with jfreechart. This chart is too big for the screen, so I would like to put it in a scrollpane. However, when using the scrollbar, the complete graph is redrawn everytime, which makes it extremely slow. Is there a solution for this? thanks, Bart

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  • Widgets and .mobi sites, is this possible?

    - by Roland
    I have a couple of concerns, I'm busy building a normal .mobi site for a client, so basically how I understand this is keep it simply since most phones do not support JavaScript and have a small screen etc. So I build a mobi site using only content and basic links. Now my question is how do mobi widgets work on a mobile site? I've googled and could not find a answer? Is this possible at all?

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