iOS – 文本视图

-(void)textViewDidBeginEditing:(UITextView *)textView
-(void)textViewDidEndEditing:(UITextView *)textView
-(void)textViewDidChange:(UITextView *)textView
-(BOOL)textViewShouldEndEditing:(UITextView *)textView

-(void)addTextView {
myTextView = [[UITextView alloc]initWithFrame:
CGRectMake(10, 50, 300, 200)];
[myTextView setText:@"Lorem ipsum dolor sit er elit lamet, consectetaur
cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et
dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation
ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure
dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat
nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
culpa qui officia deserunt mollit anim id est laborum. Nam liber te
conscient to factor tum poen legum odioque civiuda.
Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing
pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aiqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi
aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit
in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa
qui officia deserunt mollit anim id est laborum. Nam liber te conscient
to factor tum poen legum odioque civiuda."];
myTextView.delegate = self;
[self.view addSubview:myTextView];
}

#pragma mark - Text View delegates
-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:
(NSRange)range replacementText:(NSString *)text {
if ([text isEqualToString:@"\n"]) {
[textView resignFirstResponder];
}
return YES;
}
-(void)textViewDidBeginEditing:(UITextView *)textView {
NSLog(@"Did begin editing");
}
-(void)textViewDidChange:(UITextView *)textView {
NSLog(@"Did Change");
}
-(void)textViewDidEndEditing:(UITextView *)textView {
NSLog(@"Did End editing");
}
-(BOOL)textViewShouldEndEditing:(UITextView *)textView {
[textView resignFirstResponder];
return YES;
}

(void)viewDidLoad {
[super viewDidLoad];
[self addTextView];
}