How to check if localization is enable on iPhone?
I need to check if geolocation is enable in viewDidLoad method.
This is my viewDidLoad method:
- (void)viewDidLoad {
[super viewDidLoad];
// 1. Check connection
[self performSelector:#selector(checkConnection)];
// 2. Loader (activity indicator) ...
progressViewController = [[ProgressViewController alloc] initWithNibName:#"ProgressViewController" bundle:nil];
[self.view addSubview:progressViewController.view];
// 3. Active geolocation
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
[self startGps];
// 4. Data tableView
NSMutableArray *arrEvents = [[NSMutableArray alloc] init];
[[ListaEventiSingleton sharedListaEventi] setArrEvents:arrEvents];
[arrEvents release];
// 5. remove loader (activity indicator)
[progressViewController.view removeFromSuperview];
}
//delegate localization
- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
if (newLocation.horizontalAccuracy < 0) {
locality = #"Non riesco a localizzarti..\n Refresha!";
}
else {
CLLocationCoordinate2D here = newLocation.coordinate;
latitudine = [NSString stringWithFormat:#"%f", here.latitude];
longitudine = [NSString stringWithFormat:#"%f", here.longitude];
[self getAddressFromGmaps];
[self stopGps];
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:#selector(stopUpdatingLocalizzazione) object:nil];
}
labelLocality.text = locality;
// 4. Load data for the table view
[self performSelectorOnMainThread:#selector(loadEvents) withObject:nil waitUntilDone:YES];
[tableViewEvents reloadData];
// 5. remove activity indicator
[progressViewController.view removeFromSuperview];
}
I think you want [CLLocationManager locationServicesEnabled].
Related
I have 2 different set of pins on top of a map view. One pin appears first and it's the user location, then when you search for a location in the search bar multiple pins appear depending on the location. I want to have one pin showing at a time. Once you search for the location the user's location pin should disappear, and once you select one of the multiple pins you searched the others should disappear.
Here's my code:
#import "UbicacionVC.h"
#import "SWRevealViewController.h"
#import <MapKit/Mapkit.h>
#import "Location.h"
#interface UbicacionVC ()
#end
#implementation UbicacionVC
#synthesize mapView;
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[self inicializarComponentes];
self.mapView.delegate = self;
self.searchBar.delegate = self;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)inicializarComponentes {
[self.btnContinuar.layer setCornerRadius:20.0f];
[self.btnCancelar.layer setCornerRadius:20.0f];
////
UITapGestureRecognizer *gestureMenu = [[UITapGestureRecognizer alloc] init];
[gestureMenu addTarget:self.revealViewController action:#selector(revealToggle:)];
[gestureMenu setCancelsTouchesInView:NO];
[self.btnLeftMenu addGestureRecognizer:gestureMenu];
[self.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
////
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
[self->locationManager requestWhenInUseAuthorization];
[locationManager startUpdatingLocation];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
NSLog(#"OldLocation %f %f", oldLocation.coordinate.latitude, oldLocation.coordinate.longitude);
NSLog(#"NewLocation %f %f", newLocation.coordinate.latitude, newLocation.coordinate.longitude);
CLLocationDegrees lat = newLocation.coordinate.latitude;
CLLocationDegrees lon = newLocation.coordinate.longitude;
CLLocation * location = [[CLLocation alloc]initWithLatitude:lat longitude:lon];
self.viewRegion = MKCoordinateRegionMakeWithDistance(location.coordinate, 500, 500);
[self.mapView setRegion:self.viewRegion];
}
-(void)localSearch:(NSString*)searchString{
[self.mapView setRegion:self.viewRegion];
MKLocalSearchRequest * request = [[MKLocalSearchRequest alloc] init];
request.naturalLanguageQuery = [searchString lowercaseString];
request.region = self.viewRegion;
MKLocalSearch* search = [[MKLocalSearch alloc] initWithRequest:request];
[search startWithCompletionHandler:^(MKLocalSearchResponse *response, NSError *error) {
if([response.mapItems count] == 0){
NSLog(#"No matches \n");
}
else{
for(MKMapItem * item in response.mapItems){
Location * pin = [[Location alloc] initWith:item.placemark.title andSubtitle:item.phoneNumber andCoordinate:item.placemark.coordinate andImageName:#"" andURL:item.url.absoluteString];
[self.mapView addAnnotation:pin];
}
}
}];
}
#pragma mark UISearchBarDelegate
-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
[searchBar resignFirstResponder];
[self.mapView removeAnnotations:[self.mapView annotations]];
[self localSearch:searchBar.text];
}
#pragma mark MKMapViewDelegate
-(MKAnnotationView*)mapView:(MKMapView*)sender viewForAnnotation: (id<MKAnnotation>)annotation{
static NSString* identifier = #"reusablePin";
MKAnnotationView * aView = [sender dequeueReusableAnnotationViewWithIdentifier:identifier];
if(!aView){
aView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
aView.canShowCallout = YES;
}
aView.annotation = annotation;
return aView;
}
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(#"%#",view.annotation.title);
NSLog(#"%#",view.annotation.subtitle);
}
I want to have one pin showing at a time.
How about break; in for loop?
for(MKMapItem * item in response.mapItems){
Location * pin = [[Location alloc] initWith:item.placemark.title andSubtitle:item.phoneNumber andCoordinate:item.placemark.coordinate andImageName:#"" andURL:item.url.absoluteString];
[self.mapView addAnnotation:pin];
// one pin showed
break;
}
Once you search for the location the user's location pin should disappear,
and once you select one of the multiple pins you searched the others should disappear.
You can use didSelectAnnotationView method.
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
// once you select one of the multiple pins, the others should disappear.
for (MKPointAnnotation *annotation in mapView.annotations) {
if (view.annotation != annotation) {
[mapView removeAnnotation:annotation];
NSLog(#"yes!!");
}
}
}
I have two classes. lets say A,B Classes. from A class pushviewController is called, then B class will appear. Then here is the problem .when i call popviewcontrolleranimated method from B class it is going back to A, but then both class`s viewwillappear method is being called. so anyone can tell me what is going on in here. i am stuck!.
Below is the A class.
#implementation ShakeViewController
- (id) init {
if (self = [super init]) {
movieName = #"04";
self.view = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] autorelease];
[self.view setBackgroundColor:[UIColor whiteColor]];
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"shake_it.png"]];
[self.view addSubview:imageView];
[imageView release];
nextController = [[OtsugeViewController alloc] init];
}
return self;
}
- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {
const float violence = 1.2;
static BOOL beenhere;
BOOL shake = FALSE;
if (beenhere) return;
beenhere = TRUE;
if (acceleration.x > violence || acceleration.x < (-1* violence))
shake = TRUE;
if (acceleration.y > violence || acceleration.y < (-1* violence))
shake = TRUE;
if (acceleration.z > violence || acceleration.z < (-1* violence))
shake = TRUE;
if (shake && mPlayerPushed) {
[self playSound:#"suzu"];
if ([[NSUserDefaults standardUserDefaults] boolForKey:#"noVib"] == NO) {
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
[[UIAccelerometer sharedAccelerometer] setDelegate:nil];
[self presentModalViewController:mMoviePlayer animated:YES];
[self play];
mPlayerPushed = YES;
}
beenhere = false;
}
- (void)toNext {
NSLog(#"ShakeViewController:toNext");
[self.navigationController pushViewController:nextController animated:NO];
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
NSLog(#"Shake:viewWillAppear");
}
- (void)viewDidAppear:(BOOL)animated{
[super viewDidAppear:animated];
[[UIAccelerometer sharedAccelerometer] setDelegate:self];
[[UIAccelerometer sharedAccelerometer] setUpdateInterval:0.5];
}
- (void)dealloc {
[super dealloc];
}
#end
here is B class
#implementation OtsugeViewController
- (id) init {
if (self = [super init]) {
movieName = #"03";
self.view = [[[OtsugeView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] autorelease];
}
return self;
}
- (void) toNext {
NSLog(#"OtsugeViewController:toNext");
[self.navigationController popViewControllerAnimated:NO];
}
- (void) toToppage
{
[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:NO];
[self.navigationController popToRootViewControllerAnimated:NO];
}
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
NSLog(#"Screen touch Otsuge View");
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:self
cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil
otherButtonTitles:#"Retry", #"Main Menu", nil];
actionSheet.actionSheetStyle = UIActionSheetStyleBlackTranslucent;
actionSheet.cancelButtonIndex = 0;
[actionSheet showInView:self.view];
[actionSheet release];
}
- (void) actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex: (NSInteger)buttonIndex
{
switch (buttonIndex) {
case 0: // Retry
[self presentModalViewController:mMoviePlayer animated:YES];
[self play];
break;
case 1: // Main Menu
[self toToppage];
break;
case 2: // Cancel
break;
default:
break;
}
}
- (void) viewWillAppear:(BOOL)animated {
mMoviePlayer.moviePlayer.backgroundView.backgroundColor = [UIColor blackColor];
[self playSound:#"taiko_1"];
NSLog(#"Otsuge:viewWillAppear");
[(OtsugeView *)self.view renewImageView];
[super viewWillAppear:animated];
}
- (void) viewDidAppear:(BOOL)animated{
NSLog(#"Otsuge:viewDidAppear");
[super viewDidAppear:animated];
}
- (void) dealloc {
[super dealloc];
}
#end
It's normal. View will appear is called each time a view will appear. If you want to call a method only when the view appears for the first time use -viewdidload because in a view controller each view that is in the stack is kept in memory but those you pop get deallocated.
Have a singleton class for BNRItemStore, but when I tried to call it, I get the above error which causes an ARC issue. Have commented out the error.
DetailViewController.m
#import "DetailViewController.h"
#import "BNRItem.h"
#import "BNRImageStore.h"
#import "BNRItemStore.h"
#implementation DetailViewController
#synthesize item;
-(id)initForNewItem:(BOOL)isNew
{
self = [super initWithNibName:#"DetailViewController" bundle:nil];
if(self){
if (isNew) {
UIBarButtonItem *doneItem = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
action:#selector(save:)];
[[self navigationItem] setRightBarButtonItem:doneItem];
UIBarButtonItem *cancelItem = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemCancel
target:self
action:#selector(cancel:)];
[[self navigationItem] setLeftBarButtonItem:cancelItem];
}
}
return self;
}
-(id)initWithNibName:(NSString *)nibName bundle:(NSBundle *)bundle
{
#throw [NSException exceptionWithName:#"Wrong initializer"
reason:#"Use initForNewItem:"
userInfo:nil];
return nil;
}
-(void)viewDidLoad
{
[super viewDidLoad];
UIColor *clr = nil;
if ([[UIDevice currentDevice]userInterfaceIdiom]== UIUserInterfaceIdiomPad) {
clr = [UIColor colorWithRed:0.875 green:0.88 blue:0.91 alpha:1];
} else {
clr = [UIColor groupTableViewBackgroundColor];
}
[[self view]setBackgroundColor:clr];
}
- (void)viewDidUnload {
nameField = nil;
serialNumberField = nil;
valueField = nil;
dateLabel = nil;
imageView = nil;
[super viewDidUnload];
}
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[nameField setText:[item itemName]];
[serialNumberField setText:[item serialNumber]];
[valueField setText:[NSString stringWithFormat:#"%d", [item valueInDollars]]];
// Create a NSDateFormatter that will turn a date into a simple date string
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];
[dateFormatter setTimeStyle:NSDateFormatterNoStyle];
// Use filtered NSDate object to set dateLabel contents
[dateLabel setText:[dateFormatter stringFromDate:[item dateCreated]]];
NSString *imageKey = [item imageKey];
if (imageKey) {
// Get image for image key from image store
UIImage *imageToDisplay = [[BNRImageStore sharedStore]imageForKey:imageKey];
// Use that image to put on the screen in imageview
[imageView setImage:imageToDisplay];
} else {
// Clear the imageview
[imageView setImage:nil];
}
}
-(void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
// Clear first responder
[[self view]endEditing:YES];
// "Save" changes to item
[item setItemName:[nameField text]];
[item setSerialNumber:[serialNumberField text]];
[item setValueInDollars:[[valueField text] intValue]];
}
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)io
{
if ([[UIDevice currentDevice]userInterfaceIdiom]==UIUserInterfaceIdiomPad) {
return YES;
} else {
return (io==UIInterfaceOrientationPortrait);
}
}
-(void)setItem:(BNRItem *)i
{
item = i;
[[self navigationItem] setTitle:[item itemName]];
}
- (IBAction)takePicture:(id)sender {
if ([imagePickerPopover isPopoverVisible]) {
// If the popover is already up, get rid of it
[imagePickerPopover dismissPopoverAnimated:YES];
imagePickerPopover = nil;
return;
}
UIImagePickerController *imagePicker =
[[UIImagePickerController alloc]init];
// If our device has a camera, we want to take a picture, otherwise, we
// just pick from the photo library
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
[imagePicker setSourceType:UIImagePickerControllerSourceTypeCamera];
} else {
[imagePicker setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
// This line of code will generate a warning right now, ignore it
[imagePicker setDelegate:self];
//Place image picker on the screen
// Check for iPad device before instantiating the popover controller
if ([[UIDevice currentDevice]userInterfaceIdiom]==UIUserInterfaceIdiomPad) {
// Create a new popover controller that will display the imagepicker
imagePickerPopover = [[UIPopoverController alloc]initWithContentViewController:imagePicker];
[imagePickerPopover setDelegate:self];
// Display the popover controller; sender
// is the camera bar button item
[imagePickerPopover presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
} else {
[self presentViewController:imagePicker animated:YES completion:nil];
}
}
}
-(void)popoverControllerDidDismissPopover:(UIPopoverController *)popoverController
{
NSLog(#"User dismissed popover");
imagePickerPopover = nil;
}
- (IBAction)backgroundTapped:(id)sender {
[[self view]endEditing:YES];
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *oldKey = [item imageKey];
// Did the item already have an image?
if (oldKey) {
// Delete the old image
[[BNRImageStore sharedStore]deleteImageForKey:oldKey];
}
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
// Create a CFUUID object - it knows how to create unique identifier strings
CFUUIDRef newUniqueID = CFUUIDCreate(kCFAllocatorDefault);
// Create a string from unique identifier
CFStringRef newUniqueIDString = CFUUIDCreateString(kCFAllocatorDefault, newUniqueID); // Incompatible integer to pointer conversion initializing
// Use that unique ID to set our item's imageKey
NSString *key = (__bridge NSString *)newUniqueIDString;
[item setImageKey:key];
// Store image in the BNRImageStore with this key
[[BNRImageStore sharedStore] setImage:image forKey:[item imageKey]];
CFRelease(newUniqueIDString);
CFRelease(newUniqueID);
[imageView setImage:image];
if ([[UIDevice currentDevice]userInterfaceIdiom]==UIUserInterfaceIdiomPad) {
// If on the phone, the image picker is presented modally. Dismiss it.
[self dismissViewControllerAnimated:YES completion:nil];
} else {
// If on the pad, the image picker is in the popover. Dismiss the popover.
[imagePickerPopover dismissPopoverAnimated:YES];
imagePickerPopover = nil;
}
}
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
[textField resignFirstResponder];
return YES;
}
-(void)save:(id)sender
{
[[self presentingViewController]dismissViewControllerAnimated:YES
completion:nil];
}
-(void)cancel:(id)sender
{
// If the user cancelled, then remove the BNRItem from the store
[[BNRItemStore sharedStore]removeItem:item]; // No known class method for selector 'sharedStore'
[[self presentingViewController]dismissViewControllerAnimated:YES completion:nil];
}
DetailViewController.h
#import <UIKit/UIKit.h>
#class BNRItem;
#interface DetailViewController : UIViewController <UINavigationControllerDelegate, UIImagePickerControllerDelegate,UITextFieldDelegate, UIPopoverControllerDelegate>
{
__weak IBOutlet UITextField *nameField;
__weak IBOutlet UITextField *serialNumberField;
__weak IBOutlet UITextField *valueField;
__weak IBOutlet UILabel *dateLabel;
__weak IBOutlet UIImageView *imageView;
UIPopoverController *imagePickerPopover;
}
#property(nonatomic,strong)BNRItem *item;
-(id)initForNewItem:(BOOL)isNew;
- (IBAction)takePicture:(id)sender;
- (IBAction)backgroundTapped:(id)sender;
#end
BNRItemStore.m
#import "BNRItemStore.h"
#import "BNRItem.h"
#implementation BNRItemStore
+ (BNRItemStore *)defaultStore
{
static BNRItemStore *defaultStore = nil;
if(!defaultStore)
defaultStore = [[super allocWithZone:nil] init];
return defaultStore;
}
+ (id)allocWithZone:(NSZone *)zone
{
return [self defaultStore];
}
- (id)init
{
self = [super init];
if(self) {
allItems = [[NSMutableArray alloc] init];
}
return self;
}
- (void)removeItem:(BNRItem *)p
{
[allItems removeObjectIdenticalTo:p];
}
- (NSArray *)allItems
{
return allItems;
}
- (void)moveItemAtIndex:(int)from
toIndex:(int)to
{
if (from == to) {
return;
}
// Get pointer to object being moved so we can re-insert it
BNRItem *p = [allItems objectAtIndex:from];
// Remove p from array
[allItems removeObjectAtIndex:from];
// Insert p in array at new location
[allItems insertObject:p atIndex:to];
}
- (BNRItem *)createItem
{
BNRItem *p = [BNRItem randomItem];
[allItems addObject:p];
return p;
}
#end
BNRItemStore.h
#import <Foundation/Foundation.h>
#class BNRItem;
#interface BNRItemStore : NSObject
{
NSMutableArray *allItems;
}
+ (BNRItemStore *)defaultStore;
- (void)removeItem:(BNRItem *)p;
- (NSArray *)allItems;
- (BNRItem *)createItem;
- (void)moveItemAtIndex:(int)from
toIndex:(int)to;
#end
You are calling +sharedStore on BNRItemStore where your error occurs. This is because it really does not exist according to the code you posted.
All of the others calling +sharedStore are using the one presumably made available by BNRImageStore which you didn't provide. I assume it exists in that class? :)
In short, change:
[[BNRItemStore sharedStore]removeItem:item];
to
[[BNRImageStore sharedStore]removeItem:item];
so this is basically like a slot machine type thing, very basic, but the problem Im having is that when you click the spin button the movement of the components is not animated, even though i have sent the animated argument a YES BOOL. I have no idea what I am doing wrong, any help would be appreciated.
Nick
ps download the entire project here: http://files.me.com/knyck2/dcca9y
//
// CustomPickerViewController.m
// Pickers
//
// Created by Nicholas Iannone on 1/29/10.
// Copyright 2010 Apple Inc. All rights reserved.
//
#import "CustomPickerViewController.h"
#implementation CustomPickerViewController
#synthesize column1, column2, column3, column4, column5, picker, winLabel;
-(IBAction) spin : (id) sender {
NSLog(#"even got here");
BOOL win = NO;
int numInRow = 1;
int lastVal = -1;
for (int i = 0; 1 < 5; i++) {
int newValue = random() % [self.column1 count];
if (newValue == lastVal) {
NSLog(#"even got here");
numInRow++;
}
else
numInRow = 1;
lastVal = newValue;
[picker selectRow:newValue inComponent:i animated:YES];
[picker reloadComponent:i];
if (numInRow >= 3)
win = YES;
NSLog(#"even got here");
}
if (win)
winLabel.text = #"winner!";
else {
winLabel.text = #"";
NSLog(#"even got here");
}
}
/*
// The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
}
return self;
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
UIImage *seven = [UIImage imageNamed:#"seven.png"];
UIImage *bar = [UIImage imageNamed:#"bar.png"];
UIImage *crown = [UIImage imageNamed:#"crown.png"];
UIImage *cherry = [UIImage imageNamed:#"cherry.png"];
UIImage *lemon = [UIImage imageNamed:#"lemon.png"];
UIImage *apple = [UIImage imageNamed:#"apple.png"];
for (int i = 1; i <= 5 ; i++) {
UIImageView *sevenView = [[UIImageView alloc] initWithImage: seven];
UIImageView *barView = [[UIImageView alloc] initWithImage: bar];
UIImageView *crownView = [[UIImageView alloc] initWithImage: crown];
UIImageView *cherryView = [[UIImageView alloc] initWithImage: cherry];
UIImageView *lemonView = [[UIImageView alloc] initWithImage: lemon];
UIImageView *appleView = [[UIImageView alloc] initWithImage: apple];
NSArray *imageViewArray = [[NSArray alloc] initWithObjects: sevenView, barView, crownView, cherryView, lemonView, appleView, nil];
NSString *fieldName =[[NSString alloc] initWithFormat:#"column%d", i];
[self setValue:imageViewArray forKey:fieldName];
[fieldName release];
[imageViewArray release];
[sevenView release];
[crownView release];
[barView release];
[cherryView release];
[lemonView release];
[appleView release];
}
srandom(time(NULL));
[super viewDidLoad];
}
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[picker release];
[winLabel release];
[column1 release];
[column2 release];
[column3 release];
[column4 release];
[column5 release];
[super dealloc];
}
#pragma mark -
#pragma mark Picker Data Source Methods
-(NSInteger) numberOfComponentsInPickerView: (UIPickerView *) pickerView {
return 5;
}
-(NSInteger) pickerView: (UIPickerView *) pickerView numberOfRowsInComponent: (NSInteger) component {
return [self.column1 count];
}
#pragma mark Picker Delegate Methods
-(UIView *) pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent: (NSInteger) component reusingView : (UIView *)view {
NSString *arrayName = [[NSString alloc] initWithFormat:#"column%d", component + 1];
NSArray *array = [self valueForKey:arrayName];
NSLog(#"got here yo");
return [array objectAtIndex: row];
NSLog(#"holyshit");
}
#end
I went back and compared my code to the book that this project is listed in and I noticed that my code would perform as expected (with animation) if I were to build into a 3.1.2 sdk and iphone sim. So something in the new xcode is skanking the animation, at least that is the way it appears.
It's probably not animating because you do [picker reloadComponent:i] right after selecting a row with animation. Reloading probably causes any animation to stop, and shouldn't be necessary since you're not actually changing the contents of the picker.
Once again working through beginning iphone development and I am putting together a bunch of UIPicker type apps, the last one of which is a slot machine type of game, super simple. Anyway I am not really understanding why this error is coming up. to my understanding the picker view is asking its delegate for an object in the array that is past the range available to that array.
That being said I have no idea why it is doing this or how to fix it, any help would be appreciated, heres the code from the particular .m file( get the full project here: http://files.me.com/knyck2/89q3w3 ):
//
// CustomPickerViewController.m
// Pickers
//
// Created by Nicholas Iannone on 1/29/10.
// Copyright 2010 Apple Inc. All rights reserved.
//
#import "CustomPickerViewController.h"
#implementation CustomPickerViewController
#synthesize column1, column2, column3, column4, column5, picker, winLabel;
-(IBAction) spin : (id) sender {
NSLog(#"even got here");
BOOL win = NO;
int numInRow = 1;
int lastVal = -1;
for (int i = 0; 1 < 5; i++) {
int newValue = random() % [self.column1 count];
if (newValue == lastVal) {
NSLog(#"even got here");
numInRow++;
}
else
numInRow = 1;
lastVal = newValue;
[picker selectRow:newValue inComponent:i animated:YES];
[picker reloadComponent:i];
if (numInRow >= 3)
win = YES;
NSLog(#"even got here");
}
if (win)
winLabel.text = #"winner!";
else {
winLabel.text = #"";
NSLog(#"even got here");
}
}
/*
// The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
}
return self;
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
UIImage *seven = [UIImage imageNamed:#"seven.png"];
UIImage *bar = [UIImage imageNamed:#"bar.png"];
UIImage *crown = [UIImage imageNamed:#"crown.png"];
UIImage *cherry = [UIImage imageNamed:#"cherry.png"];
UIImage *lemon = [UIImage imageNamed:#"lemon.png"];
UIImage *apple = [UIImage imageNamed:#"apple.png"];
for (int i = 1; i <= 5 ; i++) {
UIImageView *sevenView = [[UIImageView alloc] initWithImage: seven];
UIImageView *barView = [[UIImageView alloc] initWithImage: bar];
UIImageView *crownView = [[UIImageView alloc] initWithImage: crown];
UIImageView *cherryView = [[UIImageView alloc] initWithImage: cherry];
UIImageView *lemonView = [[UIImageView alloc] initWithImage: lemon];
UIImageView *appleView = [[UIImageView alloc] initWithImage: apple];
NSArray *imageViewArray = [[NSArray alloc] initWithObjects: sevenView, barView, crownView, cherryView, lemonView, appleView, nil];
NSString *fieldName =[[NSString alloc] initWithFormat:#"column%d", i];
[self setValue:imageViewArray forKey:fieldName];
[fieldName release];
[imageViewArray release];
[sevenView release];
[crownView release];
[barView release];
[cherryView release];
[lemonView release];
[appleView release];
}
srandom(time(NULL));
[super viewDidLoad];
}
/*
// Override to allow orientations other than the default portrait orientation.
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[picker release];
[winLabel release];
[column1 release];
[column2 release];
[column3 release];
[column4 release];
[column5 release];
[super dealloc];
}
#pragma mark -
#pragma mark Picker Data Source Methods
-(NSInteger) numberOfComponentsInPickerView: (UIPickerView *) pickerView {
return 5;
}
-(NSInteger) pickerView: (UIPickerView *) pickerView numberOfRowsInComponent: (NSInteger) component {
return [self.column1 count];
}
#pragma mark Picker Delegate Methods
-(UIView *) pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent: (NSInteger) component reusingView : (UIView *)view {
NSString *arrayName = [[NSString alloc] initWithFormat:#"column%d", component + 1];
NSArray *array = [self valueForKey:arrayName];
NSLog(#"got here yo");
return [array objectAtIndex: row];
NSLog(#"holyshit");
}
#end
The reason why it's breaking is this loop. Take a look at your for loop condition:
1 < 5. Yes, 1 is always less than 5. This means that you have an infinite loop. I'm sure you meant i < 5.
for (int i = 0; 1 < 5; i++) {
int newValue = random() % [self.column1 count];
if (newValue == lastVal) {
NSLog(#"even got here");
numInRow++;
}
else
numInRow = 1;
lastVal = newValue;
[picker selectRow:newValue inComponent:i animated:YES];
[picker reloadComponent:i];
if (numInRow >= 3)
win = YES;
NSLog(#"even got here");
}
You're testing if 1 < 5, which is always true. You want i < 5.