如何在uitextview或uiimage的水龍頭上突出顯示特定的句子

Question

我想選擇特定的句子。我的段落由許多句子組成，每個句子都有一個索引，當我顯示並突出顯示整個句子（詩句）時點擊它。我已經取所需NSString突出這樣的：

CGPoint pos = [tap locationInView:self.textView]; 

//get location in text from textposition at point 
UITextPosition *tapPos = [self.textView closestPositionToPoint:pos]; 

//fetch the word at this position (or nil, if not available) 
UITextRange * wr = 
    [self.textView.tokenizer rangeEnclosingPosition:tapPos 
            withGranularity:UITextGranularitySentence 
             inDirection:UITextLayoutDirectionRight]; 

//fetch the word at this position (or nil, if not available) 
UITextRange * wl = 
    [self.textView.tokenizer rangeEnclosingPosition:tapPos 
            withGranularity:UITextGranularitySentence 
             inDirection:UITextLayoutDirectionLeft]; 

if ([wr isEqual:wl]) { 

    NSLog(@"WORD: %@", [self.textView textInRange:wr]);  
    NSString *infoString = [self.textView textInRange:wr]; 
    NSMutableAttributedString *attString = 
     [[NSMutableAttributedString alloc] initWithString:infoString]; 
    NSInteger _stringLength = [infoString length]; 

    UIColor *_black = [UIColor blackColor]; 
    UIFont *font = [UIFont fontWithName:@"Helvetica-Bold" 
            size:30.0f]; 
    [attString addAttribute:NSFontAttributeName 
         value:font 
         range:NSMakeRange(0, _stringLength)]; 
    [attString addAttribute:NSForegroundColorAttributeName 
         value:_black 
         range:NSMakeRange(0, _stringLength)]; 
} 

Answer 1

請檢查出來：https://github.com/00StevenG/UITextViewExtras

希望，這將可能對您有所幫助，

:)