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  • Custom UITableViewCell with 2 UILabel's resized

    - by petert
    I'm struggling to create a custom UITableViewCell (in IB) that has a UIImageView on the left, fixed to the top left corner, then 2 UILabel's adjacent to it, side by side. So the cell looks something like: +---------------------------+ | IMAGE LABEL1 LABEL2 > | +---------------------------+ What I cannot seem to do is to change the frame of LABEL1 so it fits the text is contains, then make sure LABEL2 moves to the left (or right) so it ends up directly adjacent to it, filling all the space for the rest of the cell. So, concentrating on the label text, I'd like cell to look like this: +---------------------------+ | IMAGE Call 123456 > | +---------------------------+ after I've set LABEL1 to "Call" and LABEL2 to "123456" in: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath Actually I can resize LABEL1 with this: CGSize sizeToMakeLabel = [label.text sizeWithFont:label.font]; label.frame = CGRectMake(label.frame.origin.x, label.frame.origin.y, sizeToMakeLabel.width + 3, sizeToMakeLabel.height); Now the frame for the text "Call" fits this text (confirmed by setting a background color), but the text "123456" doesn't seem to shift to the left, whatever autosizing I set in IB, or methods to resize the cells view? I seem to need the +3 to make sure "Call" didn't look like this "C…" also? I'm using 2 labels so LABEL1 can be in a bold font say.

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  • Increase frequency calls of touchesMoved

    - by Erika
    Hi Everyone, Is there a way to increase the frequency calls of touchesMoved than the default? I need more calls of it to draw a smooth circle. It gets called not too frequent by default and so I get an edgy circle. Is there a way to tweek the frequency of touchesMoved calls? Thanks

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  • iPhone OpenGL ES freezes for no reason

    - by KJ
    Hi, I'm quite new to iPhone OpenGL ES, and I'm really stuck. I was trying to implement shadow mapping on iPhone, and I allocated two 512*1024*32bit textures for the shadow map and the diffuse map respectively. The problem is that my application started to freeze and reboot the device after I added the shadow map allocation part to the code (so I guess the shadow map allocation is causing all this mess). It happens randomly, but mostly within 10 minutes. (sometimes within a few secs) And it only happens on the real iPhone device, not on the virtual device. I backtracked the problem by removing irrelevant code lines by lines and now my code is really simple, but it's still crashing (I mean, freezing). Could anybody please download my xcode project linked below and see what on earth is wrong? The code is really simple: http://www.tempfiles.net/download/201004/95922/CrashTest.html I would really appreciate if someone can help me. My iPhone is a 3GS and running on the OS version 3.1. Again, run the code and it'll take about 5 mins in average for the device to freeze and reboot. (Don't worry, it does no harm) It'll just display cyan screen before it freezes, but you'll be able to notice when it happens because the device will reboot soon, so please be patient. Just in case you can't reproduce the problem, please let me know. (That could possibly mean it's specifically my device that something's wrong with) Observation: The problem goes away when I change the size of the shadow map to 512*512. (but with the diffuse map still 512*1024) I'm desperate for help, thanks in advance! Just for the people's information who can't download the link, here is the OpenGL code: #import "GLView.h" #import <OpenGLES/ES2/glext.h> #import <QuartzCore/QuartzCore.h> @implementation GLView + (Class)layerClass { return [CAEAGLLayer class]; } - (id)initWithCoder: (NSCoder*)coder { if ((self = [super initWithCoder:coder])) { CAEAGLLayer* layer = (CAEAGLLayer*)self.layer; layer.opaque = YES; layer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool: NO], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil]; displayLink_ = nil; context_ = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2]; if (!context_ || ![EAGLContext setCurrentContext: context_]) { [self release]; return nil; } glGenFramebuffers(1, &framebuffer_); glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_); glViewport(0, 0, self.bounds.size.width, self.bounds.size.height); glGenRenderbuffers(1, &defaultColorBuffer_); glBindRenderbuffer(GL_RENDERBUFFER, defaultColorBuffer_); [context_ renderbufferStorage: GL_RENDERBUFFER fromDrawable: layer]; glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, defaultColorBuffer_); glGenTextures(1, &shadowColorBuffer_); glActiveTexture(GL_TEXTURE1); glBindTexture(GL_TEXTURE_2D, shadowColorBuffer_); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 512, 1024, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); glGenTextures(1, &texture_); glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, texture_); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 512, 1024, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); } return self; } - (void)startAnimation { displayLink_ = [CADisplayLink displayLinkWithTarget: self selector: @selector(drawView:)]; [displayLink_ setFrameInterval: 1]; [displayLink_ addToRunLoop: [NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; } - (void)useDefaultBuffers { glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, defaultColorBuffer_); glClearColor(0.0, 0.8, 0.8, 1); glClear(GL_COLOR_BUFFER_BIT); } - (void)useShadowBuffers { glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, shadowColorBuffer_, 0); glClearColor(0, 0, 0, 0); glClear(GL_COLOR_BUFFER_BIT); } - (void)drawView: (id)sender { NSTimeInterval startTime = [NSDate timeIntervalSinceReferenceDate]; [EAGLContext setCurrentContext: context_]; [self useShadowBuffers]; [self useDefaultBuffers]; glBindRenderbuffer(GL_RENDERBUFFER, defaultColorBuffer_); [context_ presentRenderbuffer: GL_RENDERBUFFER]; NSTimeInterval endTime = [NSDate timeIntervalSinceReferenceDate]; NSLog(@"FPS : %.1f", 1 / (endTime - startTime)); } - (void)stopAnimation { [displayLink_ invalidate]; displayLink_ = nil; } - (void)dealloc { if (framebuffer_) glDeleteFramebuffers(1, &framebuffer_); if (defaultColorBuffer_) glDeleteRenderbuffers(1, &defaultColorBuffer_); if (shadowColorBuffer_) glDeleteTextures(1, &shadowColorBuffer_); glDeleteTextures(1, &texture_); if ([EAGLContext currentContext] == context_) [EAGLContext setCurrentContext: nil]; [context_ release]; context_ = nil; [super dealloc]; } @end

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  • How to fetch distinct values in Core Data?

    - by Andy
    So in looking through Core Data Snippets, I found the following code: ... [request setEntity:entity]; [request setResultType:NSDictionaryResultType]; [request setReturnsDistinctValues:YES]; [request setPropertiesToFetch:[NSArray arrayWithObject:@"<#Attribute name#>"]]; // Execute the fetch NSError *error; id requestedValue = nil; // WTF? This isn't defined or used anywhere NSArray *objects = [managedObjectContext executeFetchRequest:request error:&error]; if (objects == nil) { // handle the error } This is great and seems perfect for what I need...but how does one actually use it? I assume since it's returning dictionaries, I need a key to get at the values - but where's the key defined? Is that the "id requestedValue = nil" line? If so, how does "requestedValue" become the key? Xcode gives me a compiler warning about an unused variable at the "requestedValue" declaration. I feel like I'm missing something here. Thanks in advance for any assistance you can offer.

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  • Does Iphone supports background process or services?

    - by Fedrick
    Hi all, I am planning to develop a iphone client application to upload images from iphone gallery to amazon s3 using rest calls.so is there any library to run this application as a background process in iphone. Also is there any library to access the iphone photo gallery(Should be able access all the images,not only selected one like in UIImagePickerController) Thanks in advance for stack overflow masters for sharing their knowledge.....

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  • uitableview delegate methods are not called

    - by Sean
    hi all i got the problem that the tableview methods are not called the first time the tableview is shown. if switch back to the previous view and then click the button to show the tableview again, the methods are called this time. i've to say that i show an actionsheet while the tableview is loading. the actionsheet i call in the ViewWillAppear method. thanks in advance sean

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  • NSUserDefaults always returns 0, in Simulator and Device

    - by joec
    I have a settings bundle in my iPhone app, with the following PList: Type: PSMultiValueSpecifier Title: Within (Kilometres) DefaultValue: Number: 1 Titles: Array: Item 1: Number: 1 Item 2: Number: 2 Values: Array: Item 1: Number: 1 Item 2: Number: 2 Key: String: km Then in my code i have: NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; NSInteger choiceOne = [defaults integerForKey:@"km"]; choiceOne is always 0. What am i doing wrong? Thanks

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  • UIView shadow drawing wrong

    - by dc
    Trying to draw a shadow using code from this question: http://stackoverflow.com/questions/805872/how-do-i-draw-a-shadow-under-a-uiview I implement it in a UIView subclass as discussed, but when I try and use it using UIView *shadow = [[ShadowView alloc]initWithFrame:CGRectMake(100,100,100,100)]; I get only a black square, rather than something resembling shadow. Am I missing something here?

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  • OPENGLES 2.0 equivalent of glorthof?

    - by Zippo
    Hi Guys, In my iphone app, i need to project 3d scene into the 2D coordinates of the screen for some calculations. My objects go through various rotations, translations and scaling. So i figured i need to multiply the vertices with ModelView matrix first, then i need to multiply it with the Orthogonal projection matrix. First of all am on the right track? I have the Model View Matrix, but need the projection matrix. Is there a glorthof equivalent in ES 2.0? PS: i am new to opengl. Thanks for your help. Zippo

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  • Is it possible to hide the tabbar when a button is pressed to allow a full screen view of the conten

    - by Jonah
    I have a UITabBar in the detail view of my navigation based application. I am storing text and images in a tableview and would like the user to be able to tap on a cell to hide the navigation controller and the tabbar for full screen viewing of the content. I found this code for hiding the top bars, but it does not seem as easy to hide the tabbar. [[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES]; [self.navigationController setNavigationBarHidden:YES animated:YES]; Does anyone know how to do this? This code does not work to hide the tabBar once the view is already loaded. yourTabViewController.hidesBottomBarWhenPushed = YES;

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  • Communicating with the PC via USB connection in Android

    - by Danny Singh
    I'm fairly new to android programming and need some information for a 4th year forensics course project. Basically I am trying to create a suite of tools for live analysis of an android phone. I know how to get the information I need on the phone, but I was wondering if there was a way to communicate that information back to the PC? I want to be able to run a program from a PC, which, when the phone is docked, will allow the user to access information about the phone (ie currently running services/processes, bluetooth/wifi connections, etc). I have a bunch of methods that will run on the phone and get all the information, but I want to be able to call those methods from the PC, execute on the phone, then have the information sent back to the PC to display to the user instead of just displaying it on the phone. This is to leave as small a footprint on the phone as possible. Thanks a lot.

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  • image Gallery in iPhone

    - by Arun Thakkar
    Hello EveryOne!! Hope You all are fine and also in Your best of moods!! I need You Guys help.. I need to Create an Image Gallery!! That may be use Concept of Scrolling and Paging together. When i Click on Button, It will open new view in landscape mode. This View is for my Image Gallery.. It Shows 5 Images 1) - Centered Large Image With its description on Bottom. 2) - Next Coming image on left side, This image is slightly tilled at some angle, Without any description at bottom. 3)next to next coming image on left to 2nd image. 4) - previous image on right side, This image is slightly tilled at some angle, Without any description at bottom. 5)Previous to Previous image on right of 4th image And All images are scrollable.. like When i scroll 2nd image, it Will move to Center and show its description and image Which is already centered move to previous image. Sorry for my Confused English, I have also given link Bellow. kindly Check it. Click here For Showing image. I Tried for Basic code of paging and scrolling but unluckily nothing helpful. Kindly share your knowledge as well as Guide me to develop such image gallery. Looking forwards. Thanks, Regards, Arun Thakkar

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  • How to persist options selected in AlertDialog spawned from ItemizedOverlay onTap method

    - by ahsteele
    In the description of how to add a list of options to an AlertDialog the official Android documentation alludes to saving a users preferences with one of the "data storage techniques." The examples assume the AlertDialog has been spawned within an Activity class. In my case I've created a class that extends ItemizedOverlay. This class overrides the onTap method and uses an AlertDialog to prompt the user to make a multi-choice selection. I would like to capture and persist the selections for each OverlayItem they tap on. The below code is the onTap method I've written. It functions as written but doesn't yet do what I'd hope. I'd like to capture and persist each selection made by the user to be used later. How do I do that? Is using an AlertDialog in this manner a good idea? Are there better options? protected boolean onTap(int index) { OverlayItem item = _overlays.get(index); final CharSequence[] items = { "WiFi", "BlueTooth" }; final boolean[] checked = { false, false }; AlertDialog.Builder builder = new AlertDialog.Builder(_context); builder.setTitle(item.getTitle()); builder.setMultiChoiceItems(items, checked, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int item, boolean isChecked) { // for now just show that the user touched an option Toast.makeText(_context, items[item], Toast.LENGTH_SHORT).show(); } }); builder.setPositiveButton("Okay", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int id) { // should I be examining what was checked here? dialog.dismiss(); } }); builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show(); return true; }

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  • Microphone audio streaming from Cocoa mac app to iPhone

    - by Benzamin
    Hi devs, I'm trying to build a microphone audio streamer to iPhone. The server software will be a mac desktop app and the client will be iPhone, and they are connected via tcp port. I've successfully connected the mac app and iPhone, and tried to send a fixed test.m4a audio file first. But at the iPhone i grabbed the data well, when tried to play it i used AVAudioPlayer and its returning OSStatus error. I played around with the audio queue service but its very tricky and i only got some example for fixed length audio playing like http://cocoawithlove.com/2009/06/revisiting-old-post-streaming-and.html Now i need help on two things, how can i continuously grab audio data from Mac desktop microphone? And then after grabbing the data how i can play this unfixed length audio data in the iPhone. What exactly i need to do? Please please help me on this......

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  • What are the Build Settings for a Universal iPhone and iPad Application

    - by McPragma
    What would be the settings to build and have accepted an universal app for both the iPad and iPhone? That is, what would be the settings in Project X Info Build for Architectures [ARCHS] ("Standard(armv6)" or "Optimized(armv6 armv7)" or other) Valid Architectures [VALID_ARCHS] ("armv6 armv7" or other) Build Active Architecture Only (checked or unchecked) and what would we select in the dropdown (Device - 3.2|Distribution|armv?) ? We're either getting warnings at build time that we haven't built for armv7, or the app upload is rejected on account of "The binary you uploaded was invalid. When supporting iPhone, the executable must include support for the armv6 architecture". Thank you for your help.

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  • AudioQueue recording as float

    - by niklassaers
    Hi guys, I would like to have the result from my recording as a float in the range [0.0, 1.0], alternatively [-1.0, 1.0] because of a bit of math I want to do on it. When I set my recordingformat to be in float, like this: mRecordFormat.mFormatFlags = kLinearPCMFormatFlagIsFloat; I get: Error: AudioQueueNewInput failed ('fmt?') Does this mean the hardware doesn't support recording to floats? If not, how do I set it to record in floats? If so, are there any processor-friendly ways I can convert a signed integer array to a float array? Cheers Nik

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  • How to use LIKE query in sqlite & iPhone

    - by 4thSpace
    I'm using the following for a LIKE query. Is this technique for LIKE correct? selectstmtSearch = nil; if(selectstmtSearch == nil){ const char *sql = "SELECT col1, col2 FROM table1 t1 JOIN table2 t2 ON t1.cityid = t2.cityid where t1.cityname like ?001 order by t1.cityname"; if(sqlite3_prepare_v2(databaseSearch, sql, -1, &selectstmtSearch, NULL) == SQLITE_OK) { sqlite3_bind_text(selectstmtSearch, 1, [[NSString stringWithFormat:@"%%%@%%", searchText] UTF8String], -1, SQLITE_TRANSIENT); } } The problem I'm having is after a few uses of this, I get an error 14 on sqlite3_open(), which is unable to open database. If I replace the LIKE with something such as: SELECT col1, col2 FROM table1 t1 JOIN table2 t2 ON t1.cityid = t2.cityid where t1.cityname = ? order by t1.cityname It works fine. I do open/close the DB before after the above code. Is there a way to troubleshoot exactly why the database can't be opened and what its relationship to my LIKE syntax is?

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  • iPhone UILabel text soft shadow

    - by Dimitris
    I know soft shadows are not supported by the UILabel our of the box, on the iPhone. So what would be the best way to implement my own one? EDIT: Obviously I will subclass the UILabel and draw in the -drawRect: My question is, how do I get the contents of the label as graphics and draw around them, blur them etc...

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  • How to get contacts in order of their upcoming birthdays?

    - by Pentium10
    I have code to read contact details and to read birthdays. But how do I get a list of contacts in order of their upcoming birthday? For a single contact identified by id, I get details and birthday like this: Cursor c = null; try { Uri uri = ContentUris.withAppendedId( ContactsContract.Contacts.CONTENT_URI, id); c = ctx.getContentResolver().query(uri, null, null, null, null); if (c != null) { if (c.moveToFirst()) { DatabaseUtils.cursorRowToContentValues(c, data); } } c.close(); // read birthday c = ctx.getContentResolver() .query( Data.CONTENT_URI, new String[] { Event.DATA }, Data.CONTACT_ID + "=" + id + " AND " + Data.MIMETYPE + "= '" + Event.CONTENT_ITEM_TYPE + "' AND " + Event.TYPE + "=" + Event.TYPE_BIRTHDAY, null, Data.DISPLAY_NAME); if (c != null) { try { if (c.moveToFirst()) { this.setBirthday(c.getString(0)); } } finally { c.close(); } } return super.load(id); } catch (Exception e) { Log.v(TAG(), e.getMessage(), e); e.printStackTrace(); return false; } finally { if (c != null) c.close(); } and the code to read all contacts is: public Cursor getList() { // Get the base URI for the People table in the Contacts content // provider. Uri contacts = ContactsContract.Contacts.CONTENT_URI; // Make the query. ContentResolver cr = ctx.getContentResolver(); // Form an array specifying which columns to return. String[] projection = new String[] { ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME }; Cursor managedCursor = cr.query(contacts, projection, null, null, ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC"); return managedCursor; }

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  • Will OpenGL give me any FPS improvement over CoreAnimation for scrolling a large image?

    - by Ben Roberts
    Hi, I'm considering re-writing the menu system of my iPhone app to use Open GL just to improve the smoothness of scrolling a big image (480x1900px) across the screen. I'm looking at doing this as a way to improve on using the method/solution as described here (http://stackoverflow.com/questions/1443140/smoother-uiview). This solution was a big improvement over the previous implementation but it's still not perfect and as this is the first thing the user will see I'd like it to be as flawless as possible. Will switching to OpenGL give me the sort of smooth scrolling I'm looking for? I've stayed clear of OpenGL until now as this is my first app and core animation has handled everything else I've thrown at it well enough, would be good to know if this alternative implementation is likely to work! thanks

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