UI View Controller crashes after interruption
- by nosuic
Given the multitasking of iOS I thought it wouldn't be a pain to pause and resume my app, by pressing the home button or due to a phone call, but for a particular view controller it crashes.
The navigation bar is working fine i.e. when I tap "Back" it's ok, but if I try to tap controls of the displayed UI View Controller then I get EXC_BAD_ACCESS.. =/
Please find the code of my problematic View Controller below. I'm not very sure about it myself, because I used loadView to build its View, but apart from this interruption problem it works fine.
StoreViewController.h
#import <UIKit/UIKit.h>
@protocol StoreViewDelegate <NSObject>
@optional
- (void)DirectionsClicked:(double)lat:(double)lon;
@end
@interface StoreViewController : UIViewController
{
double latitude;
double longitude;
NSString *description;
NSString *imageURL;
short rating;
NSString *storeType;
NSString *offerType;
UIImageView *imageView;
UILabel *descriptionLabel;
id<StoreViewDelegate> storeViewDel;
}
@property (nonatomic) double latitude;
@property (nonatomic) double longitude;
@property (nonatomic) short rating;
@property (nonatomic,retain) NSString *description;
@property (nonatomic,retain) NSString *imageURL;
@property (nonatomic,retain) NSString *storeType;
@property (nonatomic,retain) NSString *offerType;
@property (assign) id<StoreViewDelegate> storeViewDel;
@end
StoreViewController.m
#import "StoreViewController.h"
#import <QuartzCore/QuartzCore.h>
@interface StoreViewController()
-(CGSize) calcLabelSize:(NSString *)string withFont:(UIFont *)font maxSize:(CGSize)maxSize;
@end
@implementation StoreViewController
@synthesize storeViewDel, longitude, latitude, description, imageURL, rating, offerType, storeType;
- (void)mapsButtonClicked:(id)sender
{
}
- (void)loadView
{
UIView *storeView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 0.0f, 0.0f)];
// Colours
UIColor *lightBlue = [[UIColor alloc] initWithRed:(189.0f / 255.0f)
green:(230.0f / 255.0f)
blue:(252.0f / 255.0f) alpha:1.0f];
UIColor *darkBlue = [[UIColor alloc] initWithRed:(28.0f/255.0f)
green:(157.0f/255.0f)
blue:(215.0f/255.0f)
alpha:1.0f];
// Layout
int width = self.navigationController.view.frame.size.width;
int height = self.navigationController.view.frame.size.height;
float firstRowHeight = 100.0f;
int margin = width / 20;
int imgWidth = (width - 3 * margin) / 2;
// Set ImageView
imageView = [[UIImageView alloc] initWithFrame:CGRectMake(margin, margin, imgWidth, imgWidth)];
CALayer *imgLayer = [imageView layer];
[imgLayer setMasksToBounds:YES];
[imgLayer setCornerRadius:10.0f];
[imgLayer setBorderWidth:4.0f];
[imgLayer setBorderColor:[lightBlue CGColor]];
// Load default image
NSData *imageData = [NSData dataWithContentsOfFile:@"thumb-null.png"];
UIImage *image = [UIImage imageWithData:imageData];
[imageView setImage:image];
[storeView addSubview:imageView];
// Set Rating
UIImageView *ratingView = [[UIImageView alloc] initWithFrame:CGRectMake(3 * width / 4 - 59.0f,
margin,
118.0f,
36.0f)];
UIImage *ratingImage = [UIImage imageNamed:@"bb-rating-0.png"];
[ratingView setImage:ratingImage];
[ratingImage release];
[storeView addSubview:ratingView];
// Set Get Directions button
UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(3 * width / 4 - 71.5f,
36.0f + 2*margin,
143.0f, 63.0f)];
[btn addTarget:self action:@selector(mapsButtonClicked:) forControlEvents:UIControlEventTouchUpInside];
UIImage *mapsImgUp = [UIImage imageNamed:@"bb-maps-up.png"];
[btn setImage:mapsImgUp forState:UIControlStateNormal];
[mapsImgUp release];
UIImage *mapsImgDown = [UIImage imageNamed:@"bb-maps-down.png"];
[btn setImage:mapsImgDown forState:UIControlStateHighlighted];
[mapsImgDown release];
[storeView addSubview:btn];
[btn release];
// Set Description Text
UIScrollView *descriptionView = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0f,
imgWidth + 2 * margin,
width,
height - firstRowHeight)];
descriptionView.backgroundColor = lightBlue;
CGSize s = [self calcLabelSize:description withFont:[UIFont systemFontOfSize:18.0f] maxSize:CGSizeMake(width, 9999.0f)];
descriptionLabel = [[UILabel alloc] initWithFrame:CGRectMake(margin, margin, width - 2 * margin, s.height)];
descriptionLabel.lineBreakMode = UILineBreakModeWordWrap;
descriptionLabel.numberOfLines = 0;
descriptionLabel.font = [UIFont systemFontOfSize:18.0f];
descriptionLabel.textColor = darkBlue;
descriptionLabel.text = description;
descriptionLabel.backgroundColor = lightBlue;
[descriptionView addSubview:descriptionLabel];
[storeView addSubview:descriptionView];
[descriptionLabel release];
[lightBlue release];
[darkBlue release];
self.view = storeView;
[storeView release];
}
- (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
{
[imageView release];
[descriptionLabel release];
[super dealloc];
}
@end
Any suggestions ?
Thank you,
F.
