Two UiAlertView messages with different button actions - objective-c

Question

I have been successfully created two alerts with four buttons. The first AlertView works great but the second alertView crashes my up. Here is my code:
-(void)showAlertWithTextField{
UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:#"info" message:#"Set Time For The Game." delegate:self cancelButtonTitle:#"OK" otherButtonTitles:#"cancel", nil];
[alertView setTag:101];
alertView.alertViewStyle=UIAlertViewStylePlainTextInput;
[[alertView textFieldAtIndex:0] setKeyboardType:UIKeyboardTypeNumberPad];
[[alertView textFieldAtIndex:0] becomeFirstResponder];
[alertView show];
}
-(void)showexitAlertView
{
UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:#"Timeout" message:[NSString stringWithFormat:#"Your final score is: %i", runningSore] delegate:self cancelButtonTitle:#"Restart" otherButtonTitles:#"Exit", nil];
[alertView setTag:102];
[alertView show];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
UITextField *field = [alertView textFieldAtIndex:0];
setTime = [field.text intValue];
NSLog(#"%d", setTime);
if (alertView.tag == 101 && buttonIndex == 0) {
//if (buttonIndex == 0){
NSLog(#"Ok");
[self setTimer];
[self countDownTimerPrepare];
[self countDownTimerIntro];
[self prepareForIntroAnimation];
[self performIntroAnimation];
[self categoriesList];
}
else if (buttonIndex == 1){
NSLog(#"Cancel");
ChooseViewController * controller = [[ChooseViewController alloc] initWithNibName:#"ChooseViewController" bundle:nil];
//controller.countdownLabel.text= score;
[self presentViewController:controller animated:YES completion:nil];
}
else if (alertView.tag==102 && buttonIndex == 0){
NSLog(#"Restart");
}
else if (buttonIndex == 1){
NSLog(#"Exit");
}
}
Here is the drbugging message when i press a button from the second Alert view:
2013-09-11 17:12:06.106 Diplomatiki[2808:c07] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'textFieldIndex (0) is outside of the bounds of the array of text fields'
* First throw call stack:
(0x1c42012 0x1737e7e 0x1c41deb 0xa7f0f0 0xb5d0 0xa72020 0x174b705 0x682920 0x6828b8 0x743671 0x743bcf 0x742d38 0x6b233f 0x6b2552 0x6903aa 0x681cf8 0x1fc2df9 0x1fc2ad0 0x1bb7bf5 0x1bb7962 0x1be8bb6 0x1be7f44 0x1be7e1b 0x1fc17e3 0x1fc1668 0x67f65c 0x29fd 0x2925 0x1)
libc++abi.dylib: terminate called throwing an exception
I will apreciate any suggestions. Thank you in advance.

Answer 1

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
UITextField *field = [alertView textFieldAtIndex:0];
setTime = [field.text intValue];
This is error, your second alertView doesn't contain any textField. As in documentation says:
Retrieve a text field at an index - raises NSRangeException when textFieldIndex is out-of-bounds.
The field at index 0 will be the first text field (the single field or the login field), the field at index 1 will be the password field.
This is a solution that should work
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (alertView.tag == 101 && buttonIndex == 0) {
UITextField *field = [alertView textFieldAtIndex:0];
setTime = [field.text intValue];
NSLog(#"%d", setTime);
...
}

Answer 2

Crash is due to your second alert view don't have a textfield. But you are trying to access the textfield and it's value from the clickedButtonAtIndex:regardless which alerview is clicked.
Implement like: clickedButtonAtIndex
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (alertView.tag == 101)
{
UITextField *field = [alertView textFieldAtIndex:0];
setTime = [field.text intValue];
NSLog(#"%d", setTime);
if( buttonIndex == 0)
{
NSLog(#"Ok");
[self setTimer];
[self countDownTimerPrepare];
[self countDownTimerIntro];
[self prepareForIntroAnimation];
[self performIntroAnimation];
[self categoriesList];
}
else if (buttonIndex == 1)
{
NSLog(#"Cancel");
ChooseViewController * controller = [[ChooseViewController alloc] initWithNibName:#"ChooseViewController" bundle:nil];
[self presentViewController:controller animated:YES completion:nil];
}
}
else if (alertView.tag==102)
{
if(buttonIndex == 0)
{
NSLog(#"Restart");
}
else if (buttonIndex == 1)
{
NSLog(#"Exit");
}
}
}

Answer 3

Axel, the same problem as in previous case
- (BOOL)alertViewShouldEnableFirstOtherButton:(UIAlertView *)alertView
{
if (alertView.tag == 101){
NSString *inputText = [[alertView textFieldAtIndex:0] text];
if( [inputText length] >= 1 ){
return YES;
}
else{
return NO;
}
}else{
return NO;
}
}