我正在尝试使用我在此处找到的脚本在文本字段下实现自动完成功能:
http://www.raywenderlich.com/336/how-to-auto-complete-with-custom-values
但它按原样运行脚本,然后应用程序崩溃而没有给我一个共鸣(只是TUAppDelegate中的exc_bad_access)
不,我有其他一些键盘方法,所以不知道它们是否冲突。
文本字段声明如下:
mytextfield_textfield = [[UITextField alloc] initWithFrame:CGRectMake(60, 57, 145, 20)];
mytextfield_textfield.borderStyle = UITextBorderStyleNone;
mytextfield_textfield.font = [UIFont fontWithName:@"NeoSans" size:14];
mytextfield_textfield.placeholder = @"Enter something";
mytextfield_textfield.text = @"";
mytextfield_textfield.secureTextEntry = NO;
mytextfield_textfield.autocapitalizationType = UITextAutocapitalizationTypeNone;
mytextfield_textfield.autocorrectionType = UITextAutocorrectionTypeNo;
mytextfield_textfield.keyboardType = UIKeyboardTypeDefault;
mytextfield_textfield.returnKeyType = UIReturnKeyDone;
mytextfield_textfield.clearButtonMode = UITextFieldViewModeWhileEditing;
mytextfield_textfield.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
mytextfield_textfield.delegate = self;
[self.view addSubview:mytextfield_textfield];
然后下面的autocompleteview作为scrollview而不是tableview(另一个原因)。但它现在还没有使用。
然后我已经有了这些方法:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch * touch = [touches anyObject];
if(touch.phase == UITouchPhaseBegan) {
[mytextfield_textfield resignFirstResponder];
}
[mytextfield_textfield resignFirstResponder];
myTableView.userInteractionEnabled = YES;
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
myTableView.userInteractionEnabled = NO;
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
[mytextfield_textfield resignFirstResponder];
myTableView.userInteractionEnabled = YES;
[self performSelector:@selector(AddAction:) withObject:nil] ;
return YES;
}
现在我实现了自动完成功能:
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
autocompleteView.hidden = NO;
NSString *substring = [NSString stringWithString:textField.text];
substring = [substring stringByReplacingCharactersInRange:range withString:string];
[self searchAutocompleteEntriesWithSubstring:substring];
myTableView.userInteractionEnabled = YES;
NSLog(@"ok") ;
return NO;
}
- (void)searchAutocompleteEntriesWithSubstring:(NSString *)substring {
NSDictionary *dictionary = [[NSDictionary alloc] init ];
NSString *path = [[NSBundle mainBundle] bundlePath] ;
NSString *dictionary_path = [path stringByAppendingPathComponent:@"categorieslist2.plist"] ;
dictionary = [NSDictionary dictionaryWithContentsOfFile:dictionary_path] ;
for(id key in dictionary) {
NSLog(@"%@",key) ;
}
[dictionary release] ;
}
输出密钥并从NSlog返回OK,但随后崩溃。知道为什么吗?
我只是在做NSLog,因为我想弄清楚它为什么不起作用
答案 0 :(得分:1)
更改
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
return YES;
}
答案 1 :(得分:0)
由于我不知道的原因,[字典发布]是罪魁祸首。任何人都可以解释为什么?同样的事情让我在应用程序的另一部分崩溃,我也发布了从plist读取的字典。 评论它解决了所有问题,即使我在for循环之后没有使用字典