Я использую модальные представления в своем приложении для iphone. Проблема в том, что представления работают на симуляторе, но когда я устанавливаю его на устройство, вместо модальных представлений вместо него отображается пустой белый экран. Кто-нибудь сталкивался с этой проблемой раньше? Как мне решить это? Ниже приведен код.
#import "ResetPWD.h"
#import "WebServiceController.h"
#import "ProductAppDelegate.h"
@implementation ResetPWD
@synthesize oldPWD;
@synthesize newPWD;
@synthesize newPWD2;
@synthesize password1;
@synthesize password2;
-(IBAction)done:(id)sender {
NSString *pwd = oldPWD.text;
NSString *pwd1 = newPWD.text;
NSString *pwd2 = newPWD2.text;
if(!self.oldPWD.text )
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"" message:@"Please Enter Old Password."
delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
[alert show];
[alert release];
return;
}
if(!self.newPWD.text )
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"" message:@"Please Enter New Password."
delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
[alert show];
[alert release];
return;
}
if ([pwd1 length]<6) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Error" message:@"New password should be atleast 6 characters long" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alert show];
[alert release];
return;
}
if (![pwd1 isEqualToString:pwd2]) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Error" message:@"Passwords do not match" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alert show];
[alert release];
return;
}
password1 = pwd;
password2 = pwd1;
NSMutableArray *data = [[NSMutableArray alloc]init];
[data addObject:password1];
[data addObject:password2];
WebServiceController *webCall = [[WebServiceController alloc]init];
NSDictionary *dict = [webCall resetPWD:data];
NSString * nVal = [dict objectForKey:@"ErrorCode"];
NSString *errorDesc = [dict objectForKey:@"ErrorType"];
NSString *errorString = [dict objectForKey:@"ErrorString"];
int n=[nVal integerValue];
if(n>=3)
{
errorString=[[NSString alloc]initWithFormat:@"%@\nProceed to broker registration.",errorString];
}
UIAlertView *successAlert=[[UIAlertView alloc]initWithTitle:errorDesc message:errorString delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[successAlert show];
[successAlert release];
[self.parentViewController dismissModalViewControllerAnimated:YES];
}
-(IBAction)cancel:(id)sender {
[self.parentViewController dismissModalViewControllerAnimated:YES];
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
CGRect textFieldRect =
[self.view.window convertRect:textField.bounds fromView:textField];
CGRect viewRect =
[self.view.window convertRect:self.view.bounds fromView:self.view];
CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;
//if (textField == usernameField)
// midline+=20;
CGFloat numerator = midline - viewRect.origin.y - MINIMUM_SCROLL_FRACTION * viewRect.size.height;
CGFloat denominator = (MAXIMUM_SCROLL_FRACTION - MINIMUM_SCROLL_FRACTION) * viewRect.size.height;
CGFloat heightFraction = numerator / denominator;
if (heightFraction < 0.0)
{
heightFraction = 0.0;
}
else if (heightFraction > 1.0)
{
heightFraction = 1.0;
}
animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);
CGRect viewFrame = self.view.frame;
viewFrame.origin.y -= animatedDistance;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
CGRect viewFrame = self.view.frame;
viewFrame.origin.y += animatedDistance;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
// the user pressed the "Done" button, so dismiss the keyboard
[textField resignFirstResponder];
return NO;
}
// 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 {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization.
}
return self;
}
*/
/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[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 {
[super dealloc];
}
@end
это представление не отображается на устройстве, но отображается на симуляторе. также проектирование выполняется в xib-файле.