searchBarSearchButtonClicked 不能与 shouldChangeTextInRange 一起使用 [英] searchBarSearchButtonClicked doesn't work together with shouldChangeTextInRange

问题描述

我有以下 UISearchBar 委托方法，它自己工作(当它单独时调用).

I have the following UISearchBar delegate method that works by its own (it's called when it's alone).

-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
    [self downloadFruits:searchBar.text];
    [self.view endEditing:YES];
}

当我添加另一个 UISearchBar 委托方法时，前一个方法停止工作(不再调用).

When I added another UISearchBar delegate method the previous one stopped working (it's not called anymore).

#define CHARACTERS @"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz _-."
#define CHARACTERS_NUMBERS  [CHARACTERS stringByAppendingString:@"1234567890"]

-(BOOL)searchBar:(UISearchBar *)searchBar shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
    NSCharacterSet *unacceptedInput =
    [[NSCharacterSet characterSetWithCharactersInString:CHARACTERS_NUMBERS] invertedSet];
    // If array has more than one entry, there was at least one unacceptable character
    if ([[text componentsSeparatedByCharactersInSet:unacceptedInput] count] > 1)
        return NO;
    else
        return YES;
}

它们中的每一个单独工作都很好，但第一个(搜索按钮)没有被调用

Each of them works well alone but together the first one (Search button) is not called

推荐答案

我认为你应该将 \n 添加到 CHARACTERS

I think you should add \n to CHARACTERS

#define CHARACTERS @"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz _-.\n"

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