https://stackoverflow.com/questions/23493783
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RussianYour segue is modal. Change its mode to push or whatever is more appropriate.
Crash when [self performSegueWithIdentifier:@"login_success" sender:self];
-
16-07-2023 - |
Pregunta
I am making a login application follow http://dipinkrishna.com/blog/2013/12/ios-login-screen-tutorial-xcode-5-ios-7-storyboard-json/.
When I test the APP on iPhone. Everything works great.
But when I test on iPad the APP crash when
[self performSegueWithIdentifier:@"login_success" sender:self];
Here is the crash log:
2014-05-06 19:37:23.662 We Love HK[50458:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present a Split View Controllers modally <LoginViewController: 0x10934f960>.'
*** First throw call stack:
(
0 CoreFoundation 0x00000001019fc495 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010175b99e objc_exception_throw + 43
2 UIKit 0x0000000100408c93 -[UIViewController presentViewController:withTransition:completion:] + 4027
3 We Love HK 0x0000000100005a2d -[LoginViewController loginClicker:] + 3805
4 UIKit 0x0000000100309f06 -[UIApplication sendAction:to:from:forEvent:] + 80
5 UIKit 0x0000000100309eb4 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 17
6 UIKit 0x00000001003e6880 -[UIControl _sendActionsForEvents:withEvent:] + 203
7 UIKit 0x00000001003e595d -[UIControl touchesBegan:withEvent:] + 219
8 UIKit 0x0000000100340b74 -[UIWindow _sendTouchesForEvent:] + 300
9 UIKit 0x00000001003416e4 -[UIWindow sendEvent:] + 925
10 UIKit 0x000000010031929a -[UIApplication sendEvent:] + 211
11 UIKit 0x0000000100306aed _UIApplicationHandleEventQueue + 9579
12 CoreFoundation 0x000000010198bd21 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
13 CoreFoundation 0x000000010198b5f2 __CFRunLoopDoSources0 + 242
14 CoreFoundation 0x00000001019a746f __CFRunLoopRun + 767
15 CoreFoundation 0x00000001019a6d83 CFRunLoopRunSpecific + 467
16 GraphicsServices 0x0000000103b29f04 GSEventRunModal + 161
17 UIKit 0x0000000100308e33 UIApplicationMain + 1010
18 We Love HK 0x00000001000045b3 main + 115
19 libdyld.dylib 0x000000010207f5fd start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
And LoginViewController.h:
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import "KeychainItemWrapper.h"
@import Security;
@interface LoginViewController : UIViewController <UITextFieldDelegate>
@property (nonatomic, retain) IBOutlet UILabel *version_label;
@property (strong, nonatomic) IBOutlet UITextField *txtUsername;
@property (strong, nonatomic) IBOutlet UITextField *txtPassword;
- (IBAction) loginClicker:(id)sender;
- (IBAction) backgroundTap:(id)sender;
- (IBAction) keyboardDismiss: (id) sender;
- (IBAction) click_exit: (id) sender;
@end
LoginViewController.m:
#import "LoginViewController.h"
@implementation LoginViewController;
@synthesize version_label;
@synthesize txtUsername;
@synthesize txtPassword;
-(void)viewDidLoad
{
KeychainItemWrapper *keychainWrapper = [[KeychainItemWrapper alloc] initWithIdentifier:@"UserAuthToken" accessGroup:nil];
NSString *version = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"]; // Get App Version
NSString *build = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleVersion"]; // Get App Build Number
version_label.numberOfLines = 0; // Enable \n break line
version_label.hidden = NO; // Disable Hidden
//[keychainWrapper resetKeychainItem];
version_label.text = [NSString stringWithFormat:@"V %@ (Build %@)", version, build]; // Change Version Label's Content
if ([keychainWrapper objectForKey:(__bridge id)(kSecAttrAccount)] && [keychainWrapper objectForKey:(__bridge id)(kSecValueData)]){
txtUsername.text = [keychainWrapper objectForKey:(__bridge id)(kSecAttrAccount)];
txtPassword.text = [keychainWrapper objectForKey:(__bridge id)(kSecValueData)];
}
}
-(IBAction) keyboardDismiss: (id) sender{
[txtUsername resignFirstResponder];
[txtPassword resignFirstResponder];
}
- (IBAction)backgroundTap:(id)sender {
[txtUsername resignFirstResponder];
[txtPassword resignFirstResponder];
}
- (IBAction)click_exit:(id)sender {
//[txtUsername resignFirstResponder];
//[txtPassword resignFirstResponder];
}
- (IBAction)loginClicker:(id)sender {
NSInteger success = 0;
@try {
if([[self.txtUsername text] isEqualToString:@""] || [[self.txtPassword text] isEqualToString:@""] ) {
[self alertStatus:@"請輸入帳號及密碼！" :@"登入失敗！" :0];
} else {
KeychainItemWrapper *keychainWrapper = [[KeychainItemWrapper alloc] initWithIdentifier:@"UserAuthToken" accessGroup:nil];
NSString *post =[[NSString alloc] initWithFormat:@"username=%@&password=%@",[self.txtUsername text],[self.txtPassword text]];
NSLog(@"PostData: %@",post);
NSURL *url=[NSURL URLWithString:@"http://ls.arefly.com/other/php/welovehk/login.php"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];
//[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[url host]];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSLog(@"Response code: %ld", (long)[response statusCode]);
if ([response statusCode] >= 200 && [response statusCode] < 300)
{
NSString *responseData = [[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(@"Response ==> %@", responseData);
NSError *error = nil;
NSDictionary *jsonData = [NSJSONSerialization
JSONObjectWithData:urlData
options:NSJSONReadingMutableContainers
error:&error];
success = [jsonData[@"login_status"] integerValue];
NSLog(@"Success: %ld", (long)success);
if(success == 1)
{
NSLog(@"Login SUCCESS");
[keychainWrapper setObject:[self.txtUsername text] forKey:(__bridge id)(kSecAttrAccount)];
[keychainWrapper setObject:[self.txtPassword text] forKey:(__bridge id)(kSecValueData)];
NSString *name_msg = (NSString *) jsonData[@"name_msg"];
[self alertStatus:name_msg :@"歡迎！" :0];
} else {
NSString *error_msg = (NSString *) jsonData[@"error_message"];
[self alertStatus:error_msg :@"登入失敗！" :0];
txtPassword.text = @"";
}
} else {
//if (error) NSLog(@"Error: %@", error);
[self alertStatus:@"Connection Failed" :@"登入失敗！" :0];
txtPassword.text = @"";
}
}
}
@catch (NSException * e) {
NSLog(@"Exception: %@", e);
[self alertStatus:@"登入失敗！" :@"錯誤：" :0];
txtPassword.text = @"";
}
if (success) {
[self performSegueWithIdentifier:@"login_success" sender:self];
}
}
- (void) alertStatus:(NSString *)msg :(NSString *)title :(int) tag
{
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:title
message:msg
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil, nil];
alertView.tag = tag;
[alertView show];
}
@end
and here also didFinishLaunchingWithOptions in AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
return YES;
}
and here is my Main_iPad.storyboard:
and here is my Main_iPhone.storyboard:
Can any one help me?
Thanks!
UPDATE
If i change Model to Push in the storyboard, the APP still crash, but it is a different log:
2014-05-06 19:59:32.972 We Love HK[51824:60b] *** Terminating app due to uncaught exception 'NSGenericException', reason: 'Could not find a navigation controller for segue 'login_success'. Push segues can only be used when the source controller is managed by an instance of UINavigationController.'
*** First throw call stack:
(
0 CoreFoundation 0x00000001019fc495 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010175b99e objc_exception_throw + 43
2 UIKit 0x00000001007d1865 -[UIStoryboardPushSegue destinationContainmentContext] + 0
3 We Love HK 0x0000000100005a35 -[LoginViewController loginClicker:] + 3813
4 UIKit 0x0000000100309f06 -[UIApplication sendAction:to:from:forEvent:] + 80
5 UIKit 0x0000000100309eb4 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 17
6 UIKit 0x00000001003e6880 -[UIControl _sendActionsForEvents:withEvent:] + 203
7 UIKit 0x00000001003e595d -[UIControl touchesBegan:withEvent:] + 219
8 UIKit 0x0000000100340b74 -[UIWindow _sendTouchesForEvent:] + 300
9 UIKit 0x00000001003416e4 -[UIWindow sendEvent:] + 925
10 UIKit 0x000000010031929a -[UIApplication sendEvent:] + 211
11 UIKit 0x0000000100306aed _UIApplicationHandleEventQueue + 9579
12 CoreFoundation 0x000000010198bd21 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
13 CoreFoundation 0x000000010198b5f2 __CFRunLoopDoSources0 + 242
14 CoreFoundation 0x00000001019a746f __CFRunLoopRun + 767
15 CoreFoundation 0x00000001019a6d83 CFRunLoopRunSpecific + 467
16 GraphicsServices 0x0000000103b29f04 GSEventRunModal + 161
17 UIKit 0x0000000100308e33 UIApplicationMain + 1010
18 We Love HK 0x00000001000045b3 main + 115
19 libdyld.dylib 0x000000010207f5fd start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
Solución
Otros consejos
Change the style of StoryBoard segue which u used to push from "Modal" to "Push".
I got similar problem and struggled a while.
It was turned out that I deleted "Main.storyboard" file from the Copy Bundle Resources accidentally.
Just in case, make sure your "Main.storyboard" file is in the bundle list.
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