最近看到iOS/Mac 開發者鐘穎 Cyan 和錘子科技關于是否抄襲的爭議，有感而發：這是iOS在分詞功能的實現。并沒有關于倆這進行談論。

如何實現拇指大爆炸的功能

1：使用3D Touch來展示內容，這部分簡單的說明：

1.1 是否有3D Touch功能

//方法里檢測手機是否有3D Touch功能

• (void)viewWillAppear:(BOOL)animated {
  if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) {
  //有3D Touch功能
  [self registerForPreviewingWithDelegate:(id)self sourceView:self.view];
  }else{
  //沒有3D Touch功能
  }
  }

1.2 實現3D Touch的代理方法UIViewControllerPreviewingDelegate

pragma mark - 3D Touch Delegate

//點擊進入預覽模式： 實現該協議方法

• (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location {
  // check if we're not already displaying a preview controller
  if ([self.presentedViewController isKindOfClass:[WJFTextVC class]]) {
  return nil;
  }
  WJFTextVC *previewController = [WJFTextVC new];
  previewController.view.backgroundColor = [UIColor blueColor];
  previewController.textArray = self.words;
  return previewController;
  }

//繼續按壓進入：實現該協議

• (void)previewingContext:(id<UIViewControllerPreviewing>)previewingContext commitViewController:(UIViewController *)viewControllerToCommit {
  WJFTextVC *previewController = [WJFTextVC new];
  previewController.view.backgroundColor = [UIColor redColor];
  previewController.textArray = self.words;
  [self showViewController:previewController sender:self];

}

2 重點分詞功能的實現（采用系統自帶的api）

-(NSArray *)stringTokenizerWithWord:(NSString *)word{
NSMutableArray *keyWords = [NSMutableArray new];
CFStringTokenizerRef ref = CFStringTokenizerCreate(NULL, (__bridge CFStringRef)word, CFRangeMake(0, word.length),kCFStringTokenizerUnitWord,NULL);
CFRange range;
CFStringTokenizerAdvanceToNextToken(ref);
range=CFStringTokenizerGetCurrentTokenRange(ref);
NSString *keyWord;
while (range.length>0)
{
keyWord=[word substringWithRange:NSMakeRange(range.location, range.length)];
[keyWords addObject:keyWord];
CFStringTokenizerAdvanceToNextToken(ref);
range=CFStringTokenizerGetCurrentTokenRange(ref);
}
return keyWords;
}