当您在当前未编辑的UITextView上调用selectedRange时,您检查的NSRange返回值是什么？

Question

当您在当前未编辑的UITextView上调用selectedRange时,您检查的NSRange返回值是什么？

Answer 1

找到答案:

NSRange range = textView.selectedRange;

if (range.location == NSNotFound) {
  //The textfield was not selected.

} else {
  //There is a valid range.

}