NSString *str = @"hipstar";
UITextChecker *textChecker = [[UITextChecker alloc] init];
NSRange misspelledRange = [textChecker rangeOfMisspelledWordInString:str range:NSMakeRange(0, [str length]) startingAt:0 wrap:NO language:@"en_US"];
NSArray *guesses = [NSArray array];
if (misspelledRange.location != NSNotFound) {
guesses = [textChecker guessesForWordRange:misspelledRange inString:str language:@"en_US"];
NSLog(@"First guess: %@", [guesses firstObject]);
// First guess: hipster
} else {
NSLog(@"Not found");
}
// 学习一个新的单词
[UITextChecker learnWord:str];
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