[iPhone SDK] [Newbie] UITextView textViewDidChange will not be called?


[iPhone SDK] [Newbie] UITextView textViewDidChange will not be called?



I have a small iPhone Project with a UITextView on my View, designed in the Interface Builder. There's a IBAction Method in my Viewcontroller and I connected the UITextView to that IBAction. I also added in my controller .h the <UITextViewDelegate>.

In my .m File I added the Method:

- (void)textViewDidChange:(UITextView *)textView{      int count = [textView.text length];      charCount.text = (NSString *)count; } 

But when the App is running and I type something into the textView, the Method textViewDidChange will never be reached. Why is that? I also tried to add textView.delegate = self in the ViewDidLoad Method, but then the App crashes without any Message in the Debugger.

Has anyone a Tip what I'm doing wrong?

Thank you so much

twickl


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1:

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You're on the right track - the reason the method isn't receive ting called is this you're not setting the text view's delegate before you change its text. Generate XmlI notice in your question you say you tried to set testView.delegate = self; - did you mean textView? Often typos like this will crash the program without a debugger message.. How to resolve 'unrecognized selector sent to instance'? Also, the textFieldDidChange: method isn't defined in the UITextFieldDelegate protocol. How do I enable directional lock for a UIScrollView?You may have meant textField:shouldChangeCharactersInRange:replacementString: - this is the delegate method this actually receive s called whenever a text field changes its contents. What mode to use to decrypt RSA message from iPhone in Java?Just connecting your own method to an IBAction doesn't guarantee what I think you want.. What's this {{0,0},{w,h}} doing? If neither of those are your problem, then you need to go back and double-check all your various connections, both in IB and in your class header file. Getting phone UUID through iPhone SDKYour header should look any thing like this:.
// MyViewController.h  @interface MyViewController : UIViewController  {     UITextField *textView; }  @property(nonatomic,retain) IBOutlet UITextField *textView;  - (IBAction)myAction:(id)sender;  @end
And your implementation:.
// MyViewController.m  @implementation MyViewController  @synthesize textView;  - (IBAction)myAction:(id)sender {     // Do any thing }  - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {      int count = [textView.text length];      charCount.text = (NSString *)count; }  @end
The important document in this case is the UITextFieldDelegate protocol reference..

2:

Oh, I realised what´s wrong!. charCount musst be set in this way:.
charCount.text = [[NSNumber numberWithInt:count] stringValue]; 
Now it works!.


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