CODEWITHSUNDEEP
iosuitextviewcpu-wordselection
AJ9
AJ9

Reputation: 1276

Select only whole words uiTextView

I'm currently implementing a translation application. One that when a user selects a word from a UITextView the application translates to a different language.

I would like to restrict the options for selection to only whole words for example:

"Hello World" and not "Hello Wo"

Similar to the iOS Kindle application when defining words in the dictionary.

I have the UITextViewDelegate in my .h file.

I currently have in my .m: 

- (void)textViewDidChangeSelection:(UITextView *)textView{
    [self translate];
}

and 

- (void)translate {

    if(![[self.descriptionTextView selectedTextRange] isEmpty]) {

        NSString * selectedWord = [self.descriptionTextView textInRange:[self.descriptionTextView selectedTextRange]];

 ...

I then go on to convert this to an encodedString and fires off the Google Translate API. Is there a way to only select whole words from the UITextView? So that the selection increments in whole word chunks.

Upvotes: 0

Views: 990

Answers (1)

Wain
Wain

Reputation: 119031

You can add yourself as the inputDelegate of the text field and implement selectionDidChange:. When the selection changes you can use positionWithinRange:atCharacterOffset: to investigate around the selected range for white space. Once you've found your desired range you can update the selectedTextRange.

Upvotes: 2

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