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  • Android Set ImageButton as Toggle

    - by GuyNoir
    How can I have an imagebutton stay in the 'pressed' state when it is clicked? Basically I just want the background to be the depressed background, but I can't figure out how to set it. At the moment, I've just copied the selected button background into my res folder, but when I set it as the background, it becomes blurry (since the original image is bigger than the button itself). Normal Background: What I'm getting:

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  • Masking to Transparent returns empty image

    - by Tibi
    Hi there, I'm trying to put white color in my images to transparent with the following code. Problem is that "CGImageRef maskedTransparent" is blank. I don't understand because the code I'm using is nearly a copy paste from the doc ... Any idea ? (UIImage*) maskImage:(UIImage *)image withMask:(UIImage *)maskImage { CGImageRef maskRef = maskImage.CGImage; CGImageRef mask = CGImageMaskCreate(CGImageGetWidth(maskRef), CGImageGetHeight(maskRef), CGImageGetBitsPerComponent(maskRef), CGImageGetBitsPerPixel(maskRef), CGImageGetBytesPerRow(maskRef), CGImageGetDataProvider(maskRef), NULL, false); CGImageRef masked = CGImageCreateWithMask([image CGImage], mask); //Array defining min & max RGB values to be transformed to transparent colors. float maskingMinMax[6] = {255, 255, 255, 255, 255, 255}; //masking image to remove range in maskinLinMax CGImageRef maskedTransparent = CGImageCreateWithMaskingColors(masked, maskingMinMax); return [UIImage imageWithCGImage:maskedTransparent]; }

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  • iPhone - How do I find the MAC address of the connected WiFi access point?

    - by Ciaran
    Without using the private APIs, is it possible to programatically determine the MAC address of the access point that the iPhone is connected to? I understand that this should be doable using the core BSD libraries, but we are new to this, so it would be great if someone can point us to some starter code. Note: we're trying to determine the MAC address of the remote device - not the MAC address of the iPhone.

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  • Issues declaring already existing NSMutableArray in new class

    - by Graeme
    I have a class (DataImporter) which has the code to download an RSS feed. I also have a view and separate class (TableView) which displays the data in a UITableView and starts the parsing process, storing parsed information in an NSMutableArray (items) which is located in the (TableView) subclass. Now I wish to add a UIMapView which displays the items in the (items) NSMutableArray. Herein lies the issue - I need to somehow get the data from the (items) NSMutableArray into the new (mapView) subclass which I'm struggling with - and I preferably don't want to have to create a new class to download the data again for the mapView class when it already is in the applications memory. Is there a way I can transfer the information from the NSMutableArray (items) class to the (mapView) class (i.e. how do I declare the NSMutableArray in the (mapView) class)? Here's a overview of how the system works: App opened Data downloaded (using DataImporter class) when (TableView) viewDidLoad runs Data stored in NSMutableArray accessible by the (TableView) class And from here I need to access and declare the array from a new (mapView) class. Any help greatly appreciated, thanks. Code for viewDidLoad MapKit: Data *data = nil; NSString *ilocation = [data locations]; NSString *ilocation2 = @"New Zealand"; NSString *inewlString; inewlString = [ilocation stringByAppendingString:ilocation2]; NSLog(@"inewlString=%@",inewlString); if(forwardGeocoder == nil) { forwardGeocoder = [[BSForwardGeocoder alloc] initWithDelegate:self]; } // Forward geocode! [forwardGeocoder findLocation: inewlString]; Code for parsing data into original NSMutable Array: - (void)beginParsing { NSLog(@"Parsing has begun"); //self.navigationItem.rightBarButtonItem.enabled = NO; // Allocate the array for song storage, or empty the results of previous parses if (incidents == nil) { NSLog(@"Grabbing array"); self.datas = [NSMutableArray array]; } else { [datas removeAllObjects]; [self.tableView reloadData]; } // Create the parser, set its delegate, and start it. self.parser = [[DataImporter alloc] init]; parser.delegate = self; [parser start]; }

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  • Common, reusable iPhone-App configuration screen

    - by Janey
    I'm writing code that will allow my iphone-app to have a "configuration page". A grouped, scrolling, UITableView... with cells that contain the needed textFields, switches, sliders, etc. It is an ENOURMOUS amount of code. Is there an easier way? Is there a way I could create a simple text-file, contain all my desired design choices and have my (reusable) code build the TableView for me? Or... can I just do the whole thing quicker/easier in Interface Builder instead of code?

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  • Big problems on iPhone ad hoc build -

    - by phil swenson
    No matter what I do I can't get my ad hoc provisioning profile to work. In Organizer, I always get "A valid signing identity matching this profile cannot be found in your keychain" for my adhoc profile. I have my distribution cert installed in my login keychain. I dragged the adhoc mobileprovision file to XCode... that's pretty much all there is to it, right? I searched around and found suggestions like re-creating the cert/profile. Did that, same thing. Also make sure your login keychain is default. It is. Even tried a different computer. Same result. In XCode AdHoc target I don't have a distribution target to pick. This all used to work, but obviously I messed something up..... Perhaps my process is just wrong (it's been months since I did this). Does someone have a step by step list of how to set up for adhoc distribution?

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  • How to get call notification using mobile substrate on iphone?

    - by prathumca
    Hi all, I want to use mobile substrate to "hook" some code into IPhone's "MobileCal" app so that the injected code will send a notification to my app MobileCal gets a call notification. But I'm out of luck and no clue which method need to be replaced by my "hooking" method in the "MobileCal" app. For example, the "MobileLog" and "iRealSMS" has the same functionality and they used mobile substrate to hook their code into "MobileCal" app. If any one has any clue, I would definitely appreciate them.

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  • Android Bottombar with two buttons having different backgrounds and a common background for two butt

    - by cppdev
    Hi, I have a linear layout in my main.xml which has a listview. Now I want to create a bottom bar below listview. Bottombar has a background image and two buttons with their individual background images. I want to put these two buttons on common background image. I have read that this can be achieved using FrameLayout. But since I am using LinearLayout as base layout in my main.xml, is there any way to this design using linearlayout ?

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  • Android WVGA800 and 854

    - by Droidy
    Although my relativelayout looks very similar on WVGA800 and WVGA854 on the emulator, theres different spacing on some of the objects because I'm going off of marginleft or marginright. Since the 854 is a greater width, its pushing some objects differently. Is there any way I could target either one to adjust for the different margins?

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  • Can a variable bu used 2nd time after releasing it?

    - by Jakub
    Hello, I try to understand the memory management in ObjectiveC and still some things are a misery for me. I've got an instance variable: NSMutableArray *postResultsArray; when a button is clicked in the UI I create new array: self.postResultsArray = [NSMutableArray array]; then I add some objects to the array and when the whole operation is done I would like to release the array: [self.postResultsArray release]; (I assume that all the objects stoed in the array will be released along with the array). The problem appears when I click the button again and in the code I want to create the array again with: self.postResultsArray = [NSMutableArray array]; I get: [CFArray release]: message sent to deallocated instance 0x3d9e390 Can't I initialize the same instance variable for the second time? or maybe I should not release it? and if so, why? Thanks!

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  • Blurred PNGs on UIView, using Interface Builder

    - by Christopher Stamper
    Hey everyone, I've added some UIImageViews with png images to my view, using interface builder. Initially they are added off-screen. Later, I animate them onto the screen with CoreAnimation, like so: [UIView beginAnimations:@"slide" context:nil]; [UIView setAnimationDuration:0.1f]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAnimationDelegate:self]; image.frame = CGRectMake(81+1, 390, 150, 80); [UIView commitAnimations]; Once they appear onscreen, they look really blurred or fuzzy. I've heard of this happening before. Does anyone have any idea how to fix it?

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  • How can I tell when something outside my UITableViewCell has been touched?

    - by kk6yb
    Similar to this question I have a custom subclass of UITableViewCell that has a UITextField. Its working fine except the keyboard for doesn't go away when the user touches a different table view cell or something outside the table. I'm trying to figure out the best place to find out when something outside the cell is touched, then I could call resignFirstResponder on the text field. If the UITableViewCell could receive touch events for touches outside of its view then it could just resignFirstResponder itself but I don't see any way to get those events in the cell. The solution I'm considering is to add a touchesBegan:withEvent: method to the view controller. There I could send a resignFirstResponder to all tableview cells that are visible except the one that the touch was in (let it get the touch event and handle it itself). Maybe something like this pseudo code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { CGPoint touchPoint = // TBD - may need translate to cell's coordinates for (UITableViewCell* aCell in [theTableView visibleCells]) { if (![aCell pointInside:touchPoint withEvent:event]) { [aCell resignFirstResponder]; } } } I'm not sure if this is the best way to go about this. There doesn't seem to be any way for the tableviewcell itself to receive event notifications for events outside its view.

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  • Create a view like Tweetie's User Profile view

    - by Graeme
    Hi, I'm just wondering if anyone has any idea on how you can create a view that looks like the user profile view in apps like Tweetie, where there are seemingly multiple tables with a couple of normal (straight up and down tables) and then two rows of six cells, which in Tweeties case have the number of followers, following etc. I'm trying to make a similar view for my app, but can't seem to find out the best way to create it. Any tutorials, advice etc. would be appreciated. Thanks. P.S. Here's a picture of the view which I'm trying to recreate.

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  • Custom Button on top of another custom button?

    - by Jim
    I'm trying to make two custom buttons in code. One that fills the full screen with a small button on top. The problem I'm having is the larger button is triggered when the smaller button is tapped. I've tried doing exactly the same thing with IB and it works. Is there some sort of trapping/masking method that I need to use with code? I've checked the documentation and not come across anything that would suggest why this is happening. CGRect bFrame = CGRectMake(0, 0, 320, 480); UIButton *cancelButton = [[UIButton alloc] init]; cancelButton = [UIButton buttonWithType:UIButtonTypeCustom]; cancelButton.frame = bFrame; [cancelButton setBackgroundColor:[UIColor clearColor]]; [cancelButton addTarget:self action:@selector(animate:) forControlEvents:UIControlEventTouchUpInside]; UIButton *priceButton = [[UIButton alloc] init]; priceButton.center = CGPointMake(228, 98); [priceButton addTarget:self action:@selector(callNumber:) forControlEvents:UIControlEventTouchUpInside]; [priceButton setTitle:@"BUY" forState:UIControlStateNormal]; //[cancelButton addSubview:priceButton]; [self.view addSubview:cancelButton]; [self.view bringSubviewToFront:priceButton];

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  • How to load a NIB inside of a view in another NIB?

    - by Sheehan Alam
    I have two NIB's ParentViewController.xib ChildViewController.xib ParentViewController.xib contains a UIView and a UIViewController. ChildViewController.xib contains a UIButton I want ChildViewController.xib to load in the ParentViewController.xib's UIView I have done the following: Created @property for UIView in ParentViewController Connected File's Owner to UIView in ParentViewController Set UIViewController in ParentViewController's NIB Name property to ChildViewController in Interface Builder Set ChildViewController view property to UIView in ParentViewController I was hoping this would load ChildViewController into my UIView in ParentViewController but no luck. I did get the following warning, which could be the culprit: 'View Controller (Child View)' has both its 'NIB Name' property set and its 'view' outlet connected. This configuration is not supported. I also have added additional code in ParentViewController's viewDidLoad(): - (void)viewDidLoad { [super viewDidLoad]; ChildViewController *childViewController = [[ChildViewController alloc]initWithNibName:@"ChildViewController" bundle:nil]; childViewController.view = self.myView; } Any thoughts on why ChildViewController does not load in the UIView of ParentViewController?

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  • image upload on server

    - by user338322
    I am trying to upload an image to server using iphone . I haven't done it before. But I am not getting how can i do it. I know how to add text data on server. But how to add the image data or an Image to server . Can any one suggest!?

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  • iPhone Gps logging inaccurate

    - by Martijn
    I'm logging gps points during a walk. Below it shows the function that the coordinates are saved each 5 seconds. i Did several tests but i cannot get the right accuracy i want. (When testing the sky is clear also tests in google maps shows me that the gps signal is good). here is the code: -(void)viewDidAppear:(BOOL)animated{ if (self.locationManager == nil){ self.locationManager = [[[CLLocationManager alloc] init] autorelease]; locationManager.delegate = self; // only notify under 100 m accuracy locationManager.distanceFilter = 100.0f; locationManager.desiredAccuracy= kCLLocationAccuracyBest; [locationManager startUpdatingLocation]; } } - start logging [NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(getData) userInfo:nil repeats:YES]; </code> <code> -(void)getData{ int distance; // re-use location. if ([ [NSString stringWithFormat:@"%1.2f",previousLat] isEqualToString:@"0.00"]){ // if previous location is not available, do nothing distance = 0; }else{ CLLocation *loc1 = [[CLLocation alloc] initWithLatitude:previousLat longitude:previousLong]; CLLocation *loc2 = [[CLLocation alloc] initWithLatitude:latGlobal longitude:longGlobal]; distance = [loc1 getDistanceFrom: loc2]; } // overwrite latGlobal with new variable previousLat = latGlobal; previousLong = longGlobal; // store location and save data to database // this part goes ok } - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { // track the time to get a new gps result (for gps indicator orb) lastPointTimestamp = [newLocation.timestamp copy]; // test that the horizontal accuracy does not indicate an invalid measurement if (newLocation.horizontalAccuracy < 0) return; // test the age of the location measurement to determine if the measurement is cached // don't rely on cached measurements NSTimeInterval locationAge = -[newLocation.timestamp timeIntervalSinceNow]; if (locationAge > 5.0) return; latGlobal = fabs(newLocation.coordinate.latitude); longGlobal= fabs(newLocation.coordinate.longitude); } I have taken a screenshot of the plot results (the walk takes 30 minutes) and an example of what i'am trying to acomplish: http://www.flickr.com/photos/21258341@N07/4623969014/ i really hope someone can put me in the right direction.

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  • How do I push another viewController onto the navigationController from within a tabviewController?

    - by user207788
    Hi, I have a project set up using these two tutorials. http://twilloapp.blogspot.com/2009/03/how-to-embed-navigation-controller.html and the link for the second tutorial is at the bottom of the first. The tutorial is slightly outdated but I managed to get it to work as advertised. Now I want to push a new detailedView onto the NavigationController when a user touches a row in the table view. So I added this to my MyTableViewController.m file. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Navigation logic may go here. Create and push another view controller. SecondViewController *detailViewController = [[SecondViewController alloc] initWithNibName:@"SecondViewController.xib" bundle:nil]; // ... // Pass the selected object to the new view controller. [self.navigationController pushViewController:detailViewController animated:YES]; [detailViewController release]; } Now when I run this project and touch a row in my table view I am getting an error: asm_Terminating_due_to_uncaught_exception IT seems to be having an issue loading the SecondViewController from nib, however I checked the detailViewController and it is not nil. I know I am missing something and it is more than likely something simple. Please help. Thanks, Bruce

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