I am new to IOS now I am developing location app i am not getting correct latitude,longitude values while running my app in iPhone.. it gives me too far lat,long values to the current location why it shows me these values can anyone tell me..
Try it....
Set Delegate CLLocationManagerDelegate
#import <CoreLocation/CoreLocation.h>
CLLocationManager *locationManager;
CLLocation *startLocation;
- (void)viewDidLoad {
[super viewDidLoad];
NSString *currentLatitude;
NSString *currentLongitude;
locationManager = [[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.delegate = self;
[locationManager startUpdatingLocation];
startLocation = nil;
}
-(void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
currentLatitude = [[NSString alloc]
initWithFormat:#"%g",
newLocation.coordinate.latitude];
currentLongitude = [[NSString alloc]
initWithFormat:#"%g",
newLocation.coordinate.longitude];
NSLog(#"%#",currentLatitude);
NSLog(#"%#",currentLongitude);
}
-(void)locationManager:(CLLocationManager *)manager
didFailWithError:(NSError *)error
{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"ERROR" message:[NSString stringWithFormat:#"%#",error] delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
[alert release];
}
Related
i work on project where is TableViewController as initial controller. Then i have CoreData where i store my data. From my first TableViewController i get to ViewController via push segue in storyboard. In that ViewController i add data to my Core data, but when ViewController dismiss and TableViewController is back my table is still empty.
here is my code for table:
- (void)viewDidLoad
{
[super viewDidLoad];
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
_managedObjectContext = [appDelegate managedObjectContext];
NSFetchRequest*request = [[NSFetchRequest alloc]init];
NSEntityDescription*name = [NSEntityDescription entityForName:#"nameEntity" inManagedObjectContext:_managedObjectContext];
[request setEntity:name];
NSError*error = nil;
NSMutableArray*mutableFetchResults = [[_managedObjectContext executeFetchRequest:request error:&error]mutableCopy];
if (mutableFetchResults == nil) {
}
[self setMutableArray:mutableFetchResults];
[self.tableView reloadData];
}
than my code for table row:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return mutableArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Name";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
Name*name = (Name*) [mutableArray objectAtIndex:indexPath.row ];
cell.textLabel.text = name.shop;
cell.detailTextLabel.text = name.date;
return cell;
}
and here code where i store that data in my ViewController:
- (IBAction)addData:(id)sender;{
Name *name = [NSEntityDescription insertNewObjectForEntityForName:#"nameEntity" inManagedObjectContext:_managedObjectContext];
[name setShop:textField.text];
NSDate*date = [NSDate date];
NSDateFormatter *df = [[NSDateFormatter alloc] init];
[df setDateFormat:#"dd.MM.yyyy"];
NSString *dateString = [df stringFromDate:date];
[zoznam setDate:dateString];
You are calling
[self.tableView reloadData];
in your viewDidLoad which is not going to be invoked when you dismiss your viewController. If you would like to reload your dataSource, try this:
- (void)viewWillAppear:(BOOL)animated{
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
_managedObjectContext = [appDelegate managedObjectContext];
NSFetchRequest*request = [[NSFetchRequest alloc]init];
NSEntityDescription*name = [NSEntityDescription entityForName:#"nameEntity" inManagedObjectContext:_managedObjectContext];
[request setEntity:name];
NSError*error = nil;
NSMutableArray*mutableFetchResults = [[_managedObjectContext executeFetchRequest:request error:&error]mutableCopy];
[self setMutableArray:mutableFetchResults];
[self.tableView reloadData];
}
I have a MainController and detailedcontroller. When I popover the Book selection and select a Book, the detailcontroller display an UIWebView with the book articles :
#interface IpadBooksViewController : UITableViewController {
SearchResult *searchResult;
IpadArticleViewController *detailController;
IpadMainViewController *mainController;
UIPopoverController *popover;
}
Into the UIWebView, I display an Email icon and catch the scheme :
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
NSURL *url = [request URL];
NSString *scheme = [url scheme];
NSString *host = [url host];
if ([[url description] hasSuffix:#"next"]) {
NSLog(#"next Show");
}
BOOL isShareLinks = [host isEqualToString:#"displayShareLinks"];
BOOL isFavoriteLinks = [host isEqualToString:#"displayFavoriteLinks"];
if ([#"myappurl" isEqualToString:scheme] && (isShareLinks || isFavoriteLinks)) {
self.selectedArticleNumber = [url.path lastPathComponent];
if (isShareLinks) {
[self sendMailArticleNumber:selectedArticleNumber];
} else if (isFavoriteLinks) {
NSLog(#"ipad favorite clicked");
[self toggleFavorite:selectedArticleNumber];
Broker *broker = [[Broker alloc] init];
[broker loadProjects:self];
[broker release];
}
}
return [super webView:webView shouldStartLoadWithRequest:request navigationType:navigationType];
}
Action is supposed to display the MFMailController under my UIWebView, but nothing is displayed without error message :
- (void) sendMailArticleNumber:(NSString *)articleNumber {
MFMailComposeViewController* composer = [[MFMailComposeViewController alloc] init];
composer.mailComposeDelegate = self;
[composer setSubject:#"Article"];
NSString *messageBody = [Article fetchBody:articleNumber bookId:bookId];
[composer setMessageBody:messageBody isHTML:YES];
[self presentModalViewController:composer animated:YES];
[composer release];
}
Any help will be welcomed. I did try creating a popover, addView atIndex without success ... Let me know if you need more code.
David
I did solve the issue by loading the controller into the delegate as following :
[((PublilexAppDelegate*)[[UIApplication sharedApplication] delegate]) sendMailArticleNumber:selectedArticleNumber bookId:self.bookId];
And then into the Delegate :
- (void) sendMailArticleNumber:(NSString *)articleNumber bookId:(NSString*)bookId {
MFMailComposeViewController* composer = [[MFMailComposeViewController alloc] init];
composer.mailComposeDelegate = self;
[composer setSubject:#"Article"];
NSString *messageBody = [Article fetchBody:articleNumber bookId:bookId];
[composer setMessageBody:messageBody isHTML:YES];
[self->navigationController presentModalViewController:composer animated:YES];
[composer release];
}
And to dismiss and comeback to the previous view :
-(void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
[self->navigationController dismissModalViewControllerAnimated:YES];
// [self dismissViewControllerAnimated:YES completion:nil];
// [((PublilexAppDelegate*)[[UIApplication sharedApplication] delegate]) navigateToIpadMain];
}
I'm a bit confused with this as I've seen way too many different variants and not sure which one is the correct way. Currently I have:
- (IBAction)pickImageFromLibrary:(id)sender
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentModalViewController:picker animated:YES];
// [picker release];
}
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0.0f, 10.0f, 320.0f, 264.0f)];
self.studyView = imageView;
[imageView release];
[self.tableView setTableHeaderView:studyView];
self.fitImage = [ImageHelper image:image fitInView:studyView];
if (picker.sourceType == UIImagePickerControllerSourceTypeCamera)
{
UIImageWriteToSavedPhotosAlbum(image, self, #selector(image:didFinishSavingWithError:contextInfo:), nil);
}
studyView.image = self.fitImage;
[self dismissModalViewControllerAnimated:YES];
[picker release];
}
I'm allocating the UIImagePickerController in the first method but wouldn't it be logical to only release it in the 2nd method when I dismiss it?
No, because it's retained when presented modally, via presentModelViewController. This is the common pattern you'll find when presenting new view controllers, whether modally, custom view controllers or not. This is fine:
- (IBAction)pickImageFromLibrary:(id)sender
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentModalViewController:picker animated:YES];
[picker release];
}
I am working on orientation of actionsheet with pickerview. It is working finely on potrait mode but it is not working on landscape mode. May I know where i went wrong?
Regards,
sathish
- (IBAction)openActionSheet
{
UIView *ui_pickerview = [[[UIView alloc] initWithFrame:CGRectMake(0, 160, 320, 305)] autorelease];
pickerViewPopup = [[UIActionSheet alloc] initWithTitle:#""
delegate:self
cancelButtonTitle:nil
destructiveButtonTitle:nil
otherButtonTitles:nil];
UIImageView *pickerImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0,44,320,213)];
pickerImageView.image = [UIImage imageNamed:#"picker.png"];
UIImageView *homeImageView = [[UIImageView alloc] initWithFrame:CGRectMake(5,137,30,24)];
homeImageView.image = [UIImage imageNamed:#"picker_icon_home.png"];
m_pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0,44,0,0)];
m_pickerView.delegate = self;
//m_pickerView.dataSource = self;
m_pickerView.showsSelectionIndicator = NO;
//pickerView.
pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
pickerToolbar.barStyle = UIBarStyleDefault;
pickerToolbar.tintColor = [UIColor colorWithRed:134/255.0 green:187/255.0 blue:34/255.0 alpha:1];
[pickerToolbar sizeToFit];
NSMutableArray *barItems = [[NSMutableArray alloc] init];
UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(DonePicker:)];
[barItems addObject:doneBtn];
[doneBtn release];
UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
[barItems addObject:flexSpace];
[flexSpace release];
UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:#selector(closePicker:)];
[barItems addObject:cancelBtn];
[cancelBtn release];
[pickerToolbar setItems:barItems animated:YES];
[barItems release];
[pickerViewPopup addSubview:pickerToolbar];
[pickerViewPopup addSubview:m_pickerView];
//[pickerViewPopup addSubview:pickerImageView];
[pickerImageView release];
//[pickerViewPopup addSubview:homeImageView];
[homeImageView release];
[pickerViewPopup showInView:ui_pickerview];
[pickerViewPopup setBounds:CGRectMake(0,0,320, 464)];
}
If you are not adding your UIActionSheet to a view controller that is handling the orientation for landscape, then the UIActionSheet will come up in portrait.
Good Morning at all,
i have a big problem in the following code and no solution, so i hope someone could
help me:
- (IBAction)goToChart {
[rootViewController switchViews];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
UIButton *weiter = [UIButton buttonWithType:UIButtonTypeRoundedRect];
weiter.frame = CGRectMake(100, 400, 120, 40);
[weiter addTarget:self action:#selector(goToChart) forControlEvents:UIControlEventTouchUpInside];
NSString *ansicht = #"Weiter";
[weiter setTitle:ansicht forState:UIControlStateNormal];
[self.view addSubview:weiter];
// loading images into the queue
loadImagesOperationQueue = [[NSOperationQueue alloc] init];
NSString *imageName;
for (int i=0; i < 10; i++) {
imageName = [[NSString alloc] initWithFormat:#"cover_%d.jpg", i];
imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:imageName]];
UIImage *aktuellesImage = imageView.image;
UIImage *scaledImage = [aktuellesImage scaleToSize:CGSizeMake(100.0f, 100.0f)];
[(AFOpenFlowView *)self.view setImage:scaledImage forIndex:i];
[imageName release];
NSLog(#"%d is the index",i);
}
[(AFOpenFlowView *)self.view setNumberOfImages:10];
}
So you can see there 10 Images in this CoverFlowView, but how could i find out the ACTUAL picture that is in front, to use this in another view??
Could someone help me, please?
Greetings Marco
-(void)openFlowView: (AFOpenFlowView *)openFlowView imageSelected:(int)index
{
AppDelegate_iPhone *appDelegate = (AppDelegate_iPhone *)[[UIApplication sharedApplication]delegate];
db_detail = (DB_data *)[self.GalleryArray objectAtIndex:index];
appDelegate.Id = db_detail.Id;
// NSLog(#"id: value is %d",db_detail.Id);
// NSLog(#"Name vlaue is: %#",db_detail.Name);
appDelegate.title = db_detail.Name;
DetailMovieViewController *ViewController = [[DetailMovieViewController alloc]init];
[self.navigationController pushViewController:ViewController animated:YES ];
[ViewController release];
[db_detail release];
}